======================================
| [   10.427698][  T221] softirqs last disabled at (26542): netlink_release (./include/net/sock.h:2138 net/netlink/af_netlink.c:727)
| [   10.427701][  T221] Preemption disabled at:
| [   10.427701][  T221] 0x0
| [   10.427711][  T221] Tainted: [W]=WARN
[   10.427712][  T221] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.427714][  T221] Call Trace:
[   10.427715][  T221]  <TASK>
[   10.427717][  T221]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   10.427723][  T221]  __might_resched.cold (kernel/sched/core.c:9234)
[   10.427728][  T221]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   10.427732][  T221]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   10.427736][  T221]  __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))
[   10.427738][  T221]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.427744][  T221]  ? 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)
[   10.427747][  T221]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.427750][  T221]  put_chars (drivers/char/virtio_console.c:1176)
[   10.427752][  T221]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   10.427754][  T221]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   10.427757][  T221]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   10.427763][  T221]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   10.427770][  T221]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   10.427772][  T221]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.427774][  T221]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.427778][  T221]  console_emit_next_record (kernel/printk/printk.c:3183)
[   10.427782][  T221]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   10.427784][  T221]  ? 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))
[   10.427787][  T221]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.427789][  T221]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.427793][  T221]  console_flush_one_record (kernel/printk/printk.c:3268)
[   10.427797][  T221]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   10.427799][  T221]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.427804][  T221]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   10.427807][  T221]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   10.427809][  T221]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.427810][  T221]  ? 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)
[   10.427814][  T221]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   10.427816][  T221]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   10.427818][  T221]  vprintk_emit (kernel/printk/printk.c:2479)
[   10.427821][  T221]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   10.427824][  T221]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.427828][  T221]  _printk (kernel/printk/printk.c:2504)
[   10.427831][  T221]  ? snapshot_read.cold (user.c:?)
[   10.427834][  T221]  ? 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)
[   10.427836][  T221]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   10.427840][  T221]  ? 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)
[   10.427843][  T221]  do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4))
[   10.427846][  T221]  ? exit_notify (kernel/exit.c:780)
[   10.427848][  T221]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   10.427850][  T221]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.427854][  T221]  do_group_exit (kernel/exit.c:1151)
[   10.427856][  T221]  __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160)
[   10.427858][  T221]  x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232)
[   10.427861][  T221]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   10.427865][  T221]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   10.427867][  T221]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.427870][  T221] RIP: 0033:0x7f078d4171b8
[   10.427872][  T221] Code: Unable to access opcode bytes at 0x7f078d41718e.

Code starting with the faulting instruction
===========================================
[   10.427873][  T221] RSP: 002b:00007ffeb6a1e148 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[   10.427875][  T221] RAX: ffffffffffffffda RBX: 00007f078d547f88 RCX: 00007f078d4171b8
[   10.427877][  T221] RDX: 00007f078d161fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000
[   10.427878][  T221] RBP: 00007ffeb6a1e1a0 R08: 0000000000000000 R09: 0000000000008010
[   10.427878][  T221] R10: 00007ffeb6a1df60 R11: 0000000000000246 R12: 0000000000000001
[   10.427879][  T221] R13: 0000000000000000 R14: 00007f078d546680 R15: 00007f078d547fa0
| [   11.524271][  T278] softirqs last disabled at (13720): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   11.524274][  T278] Preemption disabled at:
| [   11.524274][  T278] vprintk_emit (kernel/printk/printk.c:2471)
| [   11.524283][  T278] Tainted: [W]=WARN
[   11.524284][  T278] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.524286][  T278] Call Trace:
[   11.524287][  T278]  <TASK>
[   11.524289][  T278]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   11.524295][  T278]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   11.524296][  T278]  __might_resched.cold (kernel/sched/core.c:9234)
[   11.524300][  T278]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   11.524305][  T278]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   11.524309][  T278]  __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))
[   11.524311][  T278]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.524317][  T278]  ? 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)
[   11.524320][  T278]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.524324][  T278]  put_chars (drivers/char/virtio_console.c:1176)
[   11.524326][  T278]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   11.524327][  T278]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   11.524331][  T278]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   11.524336][  T278]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   11.524344][  T278]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   11.524346][  T278]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.524348][  T278]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.524352][  T278]  console_emit_next_record (kernel/printk/printk.c:3183)
[   11.524356][  T278]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   11.524358][  T278]  ? 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))
[   11.524361][  T278]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.524363][  T278]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.524367][  T278]  console_flush_one_record (kernel/printk/printk.c:3268)
[   11.524371][  T278]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   11.524373][  T278]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.524378][  T278]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   11.524381][  T278]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   11.524383][  T278]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.524384][  T278]  ? 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)
[   11.524388][  T278]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   11.524390][  T278]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   11.524392][  T278]  vprintk_emit (kernel/printk/printk.c:2479)
[   11.524395][  T278]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   11.524397][  T278]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   11.524399][  T278]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   11.524402][  T278]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   11.524405][  T278]  _printk (kernel/printk/printk.c:2504)
[   11.524409][  T278]  ? snapshot_read.cold (user.c:?)
[   11.524412][  T278]  ? new_nbp (./include/linux/netdevice.h:2866 ./include/net/netdev_lock.h:48 net/bridge/br_if.c:445)
[   11.524417][  T278]  ? __mutex_unlock_slowpath (./include/linux/preempt.h:500 kernel/locking/mutex.c:999)
[   11.524420][  T278]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   11.524425][  T278]  br_init_port (net/bridge/br_stp_if.c:39)
[   11.524427][  T278]  new_nbp (net/bridge/br_if.c:449)
[   11.524431][  T278]  br_add_if (net/bridge/br_if.c:592)
[   11.524433][  T278]  ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1227 (discriminator 6))
[   11.524434][  T278]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   11.524441][  T278]  do_set_master (net/core/rtnetlink.c:3071)
[   11.524444][  T278]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   11.524448][  T278]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   11.524451][  T278]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   11.524452][  T278]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   11.524455][  T278]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   11.524458][  T278]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   11.524460][  T278]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   11.524462][  T278]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   11.524464][  T278]  ? kasan_save_stack (mm/kasan/common.c:58)
[   11.524466][  T278]  ? kasan_save_stack (mm/kasan/common.c:57)
[   11.524467][  T278]  ? kasan_save_track (mm/kasan/common.c:78)
[   11.524469][  T278]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   11.524471][  T278]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.524473][  T278]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   11.524475][  T278]  ? ___sys_sendmsg (net/socket.c:2758)
[   11.524479][  T278]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.524481][  T278]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   11.524484][  T278]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.524485][  T278]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.524487][  T278]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.524488][  T278]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.524490][  T278]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   11.524492][  T278]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   11.524493][  T278]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   11.524494][  T278]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   11.524498][  T278]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   11.524499][  T278]  ? nla_get_range_signed (lib/nlattr.c:270)
[   11.524504][  T278]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.524506][  T278]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   11.524511][  T278]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   11.524516][  T278]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.524518][  T278]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.524523][  T278]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.524525][  T278]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   11.524527][  T278]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.524528][  T278]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.524532][  T278]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.524534][  T278]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   11.524537][  T278]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.524539][  T278]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.524543][  T278]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.524545][  T278]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   11.524548][  T278]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   11.524551][  T278]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.524554][  T278]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   11.524561][  T278]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   11.524562][  T278]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   11.524567][  T278]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   11.524571][  T278]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   11.524575][  T278]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   11.524579][  T278]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   11.524583][  T278]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   11.524587][  T278]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.524589][  T278]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   11.524594][  T278]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   11.524597][  T278]  ____sys_sendmsg (net/socket.c:2713)
[   11.524599][  T278]  ? copy_msghdr_from_user (net/socket.c:2650)
[   11.524601][  T278]  ? sock_write_iter (net/socket.c:1269)
[   11.524603][  T278]  ? move_addr_to_kernel (net/socket.c:258)
[   11.524610][  T278]  ___sys_sendmsg (net/socket.c:2767)
[   11.524613][  T278]  ? copy_msghdr_from_user (net/socket.c:2619)
[   11.524629][  T278]  __sys_sendmsg (net/socket.c:2799)
[   11.524632][  T278]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   11.524638][  T278]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.524641][  T278]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   11.524644][  T278]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   11.524647][  T278]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.524649][  T278] RIP: 0033:0x7fa2563e854e
[   11.524652][  T278] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   11.524654][  T278] RSP: 002b:00007ffe10355640 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   11.524657][  T278] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fa2563e854e
[   11.524658][  T278] RDX: 0000000000000000 RSI: 00007ffe103556f0 RDI: 0000000000000005
[   11.524659][  T278] RBP: 00007ffe10355650 R08: 0000000000000000 R09: 0000000000000000
[   11.524660][  T278] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91c00f
[   11.524661][  T278] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffe10355dc0
| [   16.963146][  T294] softirqs last disabled at (17883): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   16.963149][  T294] Preemption disabled at:
| [   16.963149][  T294] vprintk_emit (kernel/printk/printk.c:2471)
| [   16.963158][  T294] Tainted: [W]=WARN
[   16.963159][  T294] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.963160][  T294] Call Trace:
[   16.963162][  T294]  <TASK>
[   16.963163][  T294]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   16.963169][  T294]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   16.963170][  T294]  __might_resched.cold (kernel/sched/core.c:9234)
[   16.963175][  T294]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   16.963179][  T294]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   16.963183][  T294]  __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))
[   16.963185][  T294]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   16.963193][  T294]  ? 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)
[   16.963195][  T294]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   16.963199][  T294]  put_chars (drivers/char/virtio_console.c:1176)
[   16.963201][  T294]  ? desc_read_finalized_seq (kernel/printk/printk_ringbuffer.c:1934)
[   16.963203][  T294]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   16.963206][  T294]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   16.963209][  T294]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   16.963214][  T294]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   16.963218][  T294]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   16.963219][  T294]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   16.963224][  T294]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   16.963226][  T294]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   16.963229][  T294]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.963231][  T294]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   16.963235][  T294]  console_emit_next_record (kernel/printk/printk.c:3183)
[   16.963239][  T294]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   16.963241][  T294]  ? 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))
[   16.963244][  T294]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.963246][  T294]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   16.963249][  T294]  console_flush_one_record (kernel/printk/printk.c:3268)
[   16.963254][  T294]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   16.963255][  T294]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   16.963261][  T294]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   16.963263][  T294]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   16.963265][  T294]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.963267][  T294]  ? 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)
[   16.963270][  T294]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   16.963272][  T294]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   16.963275][  T294]  vprintk_emit (kernel/printk/printk.c:2479)
[   16.963278][  T294]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   16.963283][  T294]  ? gact_cleanup_module (net/sched/act_gact.c:192) act_gact
[   16.963286][  T294]  _printk (kernel/printk/printk.c:2504)
[   16.963290][  T294]  ? snapshot_read.cold (user.c:?)
[   16.963296][  T294]  ? do_one_initcall (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 ./include/linux/cpumask.h:650 ./include/linux/cpumask.h:1232 ./include/trace/events/initcall.h:27 init/main.c:1356)
[   16.963299][  T294] gact_init_module (net/sched/act_gact.c:180) act_gact
[   16.963301][  T294]  do_one_initcall (init/main.c:1357)
[   16.963304][  T294]  ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10)
[   16.963308][  T294]  ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1))
[   16.963311][  T294]  ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178)
[   16.963316][  T294]  do_init_module (kernel/module/main.c:3117)
[   16.963319][  T294]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   16.963323][  T294]  ? free_module (./include/trace/events/module.h:50 (discriminator 19))
[   16.963326][  T294]  ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792)
[   16.963329][  T294]  load_module (kernel/module/main.c:3593)
[   16.963334][  T294]  ? security_kernel_post_read_file (security/security.c:2997 (discriminator 11))
[   16.963339][  T294]  ? layout_and_allocate.isra.0 (kernel/module/main.c:3016)
[   16.963342][  T294]  ? __ia32_sys_fsconfig (??:?)
[   16.963346][  T294]  ? backing_file_read_iter (fs/backing-file.c:211)
[   16.963350][  T294]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   16.963353][  T294]  init_module_from_file (kernel/module/main.c:3790)
[   16.963355][  T294]  ? __do_sys_init_module (kernel/module/main.c:3664)
[   16.963363][  T294]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   16.963366][  T294]  ? 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)
[   16.963369][  T294]  idempotent_init_module (kernel/module/main.c:3802)
[   16.963372][  T294]  ? init_module_from_file (kernel/module/main.c:3791)
[   16.963377][  T294]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   16.963380][  T294]  ? __x64_sys_pread64 (fs/read_write.c:764 fs/read_write.c:772 fs/read_write.c:769 fs/read_write.c:769)
[   16.963385][  T294]  __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812)
[   16.963386][  T294]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   16.963390][  T294]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   16.963393][  T294]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   16.963395][  T294]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   16.963397][  T294] RIP: 0033:0x7fea220c637d
[   16.963401][  T294] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 4b aa 0f 00 f7 d8 64 89 01 48
All code
========
   0:	ff c3                	inc    %ebx
   2:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
   9:	00 00 00 
   c:	90                   	nop
   d:	f3 0f 1e fa          	endbr64
  11:	48 89 f8             	mov    %rdi,%rax
  14:	48 89 f7             	mov    %rsi,%rdi
  17:	48 89 d6             	mov    %rdx,%rsi
  1a:	48 89 ca             	mov    %rcx,%rdx
  1d:	4d 89 c2             	mov    %r8,%r10
  20:	4d 89 c8             	mov    %r9,%r8
  23:	4c 8b 4c 24 08       	mov    0x8(%rsp),%r9
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d 4b aa 0f 00 	mov    0xfaa4b(%rip),%rcx        # 0xfaa85
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d 4b aa 0f 00 	mov    0xfaa4b(%rip),%rcx        # 0xfaa5b
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   16.963402][  T294] RSP: 002b:00007ffc0043ecf8 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[   16.963405][  T294] RAX: ffffffffffffffda RBX: 000055f2979ca810 RCX: 00007fea220c637d
[   16.963406][  T294] RDX: 0000000000000000 RSI: 000055f25f3d7ffd RDI: 0000000000000000
[   16.963407][  T294] RBP: 00007ffc0043ed90 R08: 0000000000000000 R09: 0000000000000000
[   16.963408][  T294] R10: 0000000000000000 R11: 0000000000000246 R12: 000055f25f3d7ffd
[   16.963409][  T294] R13: 000055f2979ca960 R14: 0000000000040000 R15: 0000000000000000
| [   18.043448][   T37] softirqs last disabled at (55598): br_port_carrier_check (./include/linux/spinlock.h:353 net/bridge/br_if.c:87)
| [   18.043451][   T37] Preemption disabled at:
| [   18.043452][   T37] 0x0
| [   18.043462][   T37] Tainted: [W]=WARN
[   18.043462][   T37] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   18.043464][   T37] Workqueue: events_unbound linkwatch_event
[   18.043467][   T37] Call Trace:
[   18.043468][   T37]  <TASK>
[   18.043470][   T37]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   18.043476][   T37]  __might_resched.cold (kernel/sched/core.c:9234)
[   18.043481][   T37]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   18.043485][   T37]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   18.043489][   T37]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   18.043491][   T37]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   18.043498][   T37]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   18.043501][   T37]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   18.043504][   T37]  put_chars (drivers/char/virtio_console.c:1176)
[   18.043507][   T37]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   18.043510][   T37]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   18.043513][   T37]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   18.043516][   T37]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   18.043520][   T37]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   18.043524][   T37]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   18.043525][   T37]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   18.043527][   T37]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   18.043532][   T37]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   18.043534][   T37]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   18.043538][   T37]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   18.043542][   T37]  console_emit_next_record (kernel/printk/printk.c:3183)
[   18.043547][   T37]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   18.043548][   T37]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   18.043552][   T37]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   18.043554][   T37]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   18.043558][   T37]  console_flush_one_record (kernel/printk/printk.c:3268)
[   18.043562][   T37]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   18.043564][   T37]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   18.043570][   T37]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   18.043577][   T37]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   18.043579][   T37]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   18.043580][   T37]  ? 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)
[   18.043584][   T37]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   18.043586][   T37]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   18.043589][   T37]  vprintk_emit (kernel/printk/printk.c:2479)
[   18.043592][   T37]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   18.043593][   T37]  ? do_raw_read_unlock (kernel/locking/spinlock_debug.c:180)
[   18.043596][   T37]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   18.043598][   T37]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   18.043602][   T37]  _printk (kernel/printk/printk.c:2504)
[   18.043606][   T37]  ? snapshot_read.cold (user.c:?)
[   18.043611][   T37]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   18.043615][   T37]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   18.043620][   T37]  br_init_port (net/bridge/br_stp_if.c:39)
[   18.043622][   T37]  br_stp_enable_port (net/bridge/br_stp_if.c:93)
[   18.043624][   T37]  br_port_carrier_check (net/bridge/br_if.c:90)
[   18.043628][   T37]  br_device_event (net/bridge/br.c:101)
[   18.043631][   T37]  ? fib6_ifdown (net/ipv6/route.c:4976)
[   18.043633][   T37]  ? packet_sendmsg_spkt (af_packet.c:?)
[   18.043639][   T37]  notifier_call_chain (kernel/notifier.c:85)
[   18.043645][   T37]  netif_state_change (net/core/dev.c:1625)
[   18.043651][   T37]  ? call_netdevice_notifiers_info (./include/net/net_namespace.h:422 (discriminator 7))
[   18.043656][   T37]  ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166)
[   18.043658][   T37]  __linkwatch_run_queue (net/core/link_watch.c:240)
[   18.043661][   T37]  ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   18.043663][   T37]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   18.043668][   T37]  linkwatch_event (net/core/link_watch.c:314 (discriminator 11))
[   18.043670][   T37]  ? __linkwatch_run_queue (net/core/link_watch.c:213)
[   18.043674][   T37]  process_one_work (kernel/workqueue.c:3387)
[   18.043681][   T37]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[   18.043684][   T37]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   18.043692][   T37]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   18.043699][   T37]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   18.043701][   T37]  kthread (kernel/kthread.c:436)
[   18.043703][   T37]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   18.043707][   T37]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   18.043710][   T37]  ret_from_fork (arch/x86/kernel/process.c:158)
[   18.043714][   T37]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[   18.043718][   T37]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   18.043721][   T37]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   18.043724][   T37]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   19.106189][   T37] softirqs last disabled at (74788): br_port_carrier_check (./include/linux/spinlock.h:353 net/bridge/br_if.c:87)
| [   19.106191][   T37] Preemption disabled at:
| [   19.106192][   T37] 0x0
| [   19.106202][   T37] Tainted: [W]=WARN
[   19.106202][   T37] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.106204][   T37] Workqueue: events_unbound linkwatch_event
[   19.106207][   T37] Call Trace:
[   19.106208][   T37]  <TASK>
[   19.106210][   T37]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   19.106216][   T37]  __might_resched.cold (kernel/sched/core.c:9234)
[   19.106221][   T37]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   19.106225][   T37]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   19.106230][   T37]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   19.106231][   T37]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   19.106238][   T37]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   19.106241][   T37]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   19.106245][   T37]  put_chars (drivers/char/virtio_console.c:1176)
[   19.106247][   T37]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   19.106250][   T37]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   19.106253][   T37]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   19.106256][   T37]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   19.106260][   T37]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   19.106264][   T37]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   19.106266][   T37]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   19.106268][   T37]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   19.106272][   T37]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   19.106274][   T37]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   19.106279][   T37]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   19.106283][   T37]  console_emit_next_record (kernel/printk/printk.c:3183)
[   19.106287][   T37]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   19.106289][   T37]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   19.106292][   T37]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.106294][   T37]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   19.106298][   T37]  console_flush_one_record (kernel/printk/printk.c:3268)
[   19.106302][   T37]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   19.106304][   T37]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   19.106310][   T37]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   19.106312][   T37]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   19.106314][   T37]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.106316][   T37]  ? 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)
[   19.106320][   T37]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   19.106322][   T37]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   19.106324][   T37]  vprintk_emit (kernel/printk/printk.c:2479)
[   19.106328][   T37]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   19.106329][   T37]  ? do_raw_read_unlock (kernel/locking/spinlock_debug.c:180)
[   19.106331][   T37]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   19.106333][   T37]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   19.106337][   T37]  _printk (kernel/printk/printk.c:2504)
[   19.106341][   T37]  ? snapshot_read.cold (user.c:?)
[   19.106346][   T37]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   19.106350][   T37]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   19.106355][   T37]  br_init_port (net/bridge/br_stp_if.c:39)
[   19.106357][   T37]  br_stp_enable_port (net/bridge/br_stp_if.c:93)
[   19.106359][   T37]  br_port_carrier_check (net/bridge/br_if.c:90)
[   19.106363][   T37]  br_device_event (net/bridge/br.c:101)
[   19.106365][   T37]  ? fib6_ifdown (net/ipv6/route.c:4976)
[   19.106368][   T37]  ? packet_sendmsg_spkt (af_packet.c:?)
[   19.106374][   T37]  notifier_call_chain (kernel/notifier.c:85)
[   19.106380][   T37]  netif_state_change (net/core/dev.c:1625)
[   19.106385][   T37]  ? call_netdevice_notifiers_info (./include/net/net_namespace.h:422 (discriminator 7))
[   19.106390][   T37]  ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166)
[   19.106392][   T37]  __linkwatch_run_queue (net/core/link_watch.c:240)
[   19.106395][   T37]  ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   19.106398][   T37]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   19.106402][   T37]  linkwatch_event (net/core/link_watch.c:314 (discriminator 11))
[   19.106404][   T37]  ? __linkwatch_run_queue (net/core/link_watch.c:213)
[   19.106408][   T37]  process_one_work (kernel/workqueue.c:3387)
[   19.106414][   T37]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[   19.106417][   T37]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   19.106425][   T37]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   19.106433][   T37]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   19.106435][   T37]  kthread (kernel/kthread.c:436)
[   19.106437][   T37]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   19.106440][   T37]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   19.106443][   T37]  ret_from_fork (arch/x86/kernel/process.c:158)
[   19.106448][   T37]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[   19.106451][   T37]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   19.106454][   T37]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   19.106457][   T37]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   20.106495][  T402] softirqs last disabled at (21378): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:119)
| [   20.106498][  T402] Preemption disabled at:
| [   20.106498][  T402] 0x0
| [   20.106509][  T402] Tainted: [W]=WARN
[   20.106510][  T402] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   20.106511][  T402] Call Trace:
[   20.106513][  T402]  <TASK>
[   20.106514][  T402]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   20.106520][  T402]  __might_resched.cold (kernel/sched/core.c:9234)
[   20.106525][  T402]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   20.106529][  T402]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   20.106533][  T402]  __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))
[   20.106535][  T402]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   20.106542][  T402]  ? 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)
[   20.106544][  T402]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   20.106548][  T402]  put_chars (drivers/char/virtio_console.c:1176)
[   20.106551][  T402]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   20.106552][  T402]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   20.106555][  T402]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   20.106561][  T402]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   20.106569][  T402]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   20.106571][  T402]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.106575][  T402]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   20.106579][  T402]  console_emit_next_record (kernel/printk/printk.c:3183)
[   20.106584][  T402]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   20.106585][  T402]  ? 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))
[   20.106589][  T402]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.106590][  T402]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   20.106594][  T402]  console_flush_one_record (kernel/printk/printk.c:3268)
[   20.106599][  T402]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   20.106600][  T402]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   20.106606][  T402]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   20.106609][  T402]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   20.106611][  T402]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.106612][  T402]  ? 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)
[   20.106616][  T402]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   20.106618][  T402]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   20.106621][  T402]  vprintk_emit (kernel/printk/printk.c:2479)
[   20.106624][  T402]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   20.106626][  T402]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   20.106628][  T402]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   20.106632][  T402]  _printk (kernel/printk/printk.c:2504)
[   20.106636][  T402]  ? snapshot_read.cold (user.c:?)
[   20.106641][  T402]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   20.106645][  T402]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   20.106650][  T402]  br_init_port (net/bridge/br_stp_if.c:39)
[   20.106652][  T402]  br_stp_enable_port (net/bridge/br_stp_if.c:93)
[   20.106654][  T402]  br_device_event (net/bridge/br.c:120)
[   20.106657][  T402]  ? packet_sendmsg_spkt (af_packet.c:?)
[   20.106659][  T402]  ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599)
[   20.106666][  T402]  notifier_call_chain (kernel/notifier.c:85)
[   20.106671][  T402]  __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9853)
[   20.106676][  T402]  ? netif_change_name (net/core/dev.c:1517)
[   20.106680][  T402]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   20.106684][  T402]  ? write_profile (profile.c:?)
[   20.106688][  T402]  netif_change_flags (net/core/dev.c:9882)
[   20.106692][  T402]  do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1))
[   20.106696][  T402]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   20.106698][  T402]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   20.106699][  T402]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   20.106701][  T402]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   20.106705][  T402]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   20.106706][  T402]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   20.106708][  T402]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   20.106711][  T402]  ? kasan_save_stack (mm/kasan/common.c:58)
[   20.106713][  T402]  ? kasan_save_stack (mm/kasan/common.c:57)
[   20.106714][  T402]  ? kasan_save_track (mm/kasan/common.c:78)
[   20.106715][  T402]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   20.106718][  T402]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   20.106719][  T402]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   20.106722][  T402]  ? ___sys_sendmsg (net/socket.c:2758)
[   20.106726][  T402]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   20.106728][  T402]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   20.106731][  T402]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.106732][  T402]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   20.106734][  T402]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.106735][  T402]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.106737][  T402]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   20.106739][  T402]  ? __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)
[   20.106742][  T402]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   20.106744][  T402]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   20.106747][  T402]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   20.106751][  T402]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.106753][  T402]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   20.106758][  T402]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   20.106764][  T402]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   20.106765][  T402]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   20.106770][  T402]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   20.106772][  T402]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   20.106774][  T402]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   20.106776][  T402]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   20.106780][  T402]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   20.106782][  T402]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   20.106785][  T402]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   20.106786][  T402]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   20.106791][  T402]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   20.106793][  T402]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   20.106796][  T402]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   20.106798][  T402]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   20.106801][  T402]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   20.106807][  T402]  ? 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))
[   20.106809][  T402]  ? 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))
[   20.106814][  T402]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   20.106818][  T402]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   20.106820][  T402]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   20.106825][  T402]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   20.106829][  T402]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   20.106832][  T402]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   20.106834][  T402]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   20.106840][  T402]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   20.106842][  T402]  ____sys_sendmsg (net/socket.c:2713)
[   20.106845][  T402]  ? copy_msghdr_from_user (net/socket.c:2650)
[   20.106847][  T402]  ? sock_write_iter (net/socket.c:1269)
[   20.106848][  T402]  ? move_addr_to_kernel (net/socket.c:258)
[   20.106856][  T402]  ___sys_sendmsg (net/socket.c:2767)
[   20.106859][  T402]  ? copy_msghdr_from_user (net/socket.c:2619)
[   20.106875][  T402]  __sys_sendmsg (net/socket.c:2799)
[   20.106878][  T402]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   20.106884][  T402]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.106887][  T402]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   20.106890][  T402]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   20.106893][  T402]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   20.106895][  T402] RIP: 0033:0x7f11a70d054e
[   20.106897][  T402] 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
[   20.106899][  T402] RSP: 002b:00007fff61849750 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   20.106901][  T402] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f11a70d054e
[   20.106903][  T402] RDX: 0000000000000000 RSI: 00007fff61849800 RDI: 0000000000000005
[   20.106904][  T402] RBP: 00007fff61849760 R08: 0000000000000000 R09: 0000000000000000
[   20.106904][  T402] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91c018
[   20.106905][  T402] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fff61849ed0
| [   21.117252][   T36] softirqs last disabled at (110194): br_port_carrier_check (./include/linux/spinlock.h:353 net/bridge/br_if.c:87)
| [   21.117255][   T36] Preemption disabled at:
| [   21.117256][   T36] 0x0
| [   21.117266][   T36] Tainted: [W]=WARN
[   21.117266][   T36] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   21.117268][   T36] Workqueue: events_unbound linkwatch_event
[   21.117271][   T36] Call Trace:
[   21.117273][   T36]  <TASK>
[   21.117274][   T36]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   21.117280][   T36]  __might_resched.cold (kernel/sched/core.c:9234)
[   21.117285][   T36]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   21.117289][   T36]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   21.117294][   T36]  __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))
[   21.117296][   T36]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   21.117302][   T36]  ? 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)
[   21.117305][   T36]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   21.117309][   T36]  put_chars (drivers/char/virtio_console.c:1176)
[   21.117311][   T36]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   21.117315][   T36]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   21.117318][   T36]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   21.117322][   T36]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   21.117326][   T36]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.117328][   T36]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.117333][   T36]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   21.117336][   T36]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.117339][   T36]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   21.117343][   T36]  console_emit_next_record (kernel/printk/printk.c:3183)
[   21.117347][   T36]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   21.117349][   T36]  ? 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))
[   21.117352][   T36]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.117354][   T36]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   21.117358][   T36]  console_flush_one_record (kernel/printk/printk.c:3268)
[   21.117362][   T36]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   21.117364][   T36]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.117370][   T36]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   21.117372][   T36]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   21.117374][   T36]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.117376][   T36]  ? 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)
[   21.117380][   T36]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   21.117382][   T36]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   21.117384][   T36]  vprintk_emit (kernel/printk/printk.c:2479)
[   21.117388][   T36]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   21.117389][   T36]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   21.117392][   T36]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   21.117394][   T36]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   21.117397][   T36]  _printk (kernel/printk/printk.c:2504)
[   21.117401][   T36]  ? snapshot_read.cold (user.c:?)
[   21.117404][   T36]  ? add_chain_block (kernel/locking/lockdep.c:3413 kernel/locking/lockdep.c:3454)
[   21.117410][   T36]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   21.117415][   T36]  br_stp_disable_port (net/bridge/br_stp_if.c:106)
[   21.117418][   T36]  br_port_carrier_check (net/bridge/br_if.c:95)
[   21.117422][   T36]  br_device_event (net/bridge/br.c:101)
[   21.117426][   T36]  ? packet_sendmsg_spkt (af_packet.c:?)
[   21.117432][   T36]  notifier_call_chain (kernel/notifier.c:85)
[   21.117438][   T36]  netif_state_change (net/core/dev.c:1625)
[   21.117441][   T36]  ? dev_deactivate (net/sched/sch_generic.c:1419)
[   21.117445][   T36]  ? call_netdevice_notifiers_info (./include/net/net_namespace.h:422 (discriminator 7))
[   21.117449][   T36]  ? rfc2863_policy (net/core/link_watch.c:52 net/core/link_watch.c:76)
[   21.117451][   T36]  ? linkwatch_do_dev (net/core/link_watch.c:184 net/core/link_watch.c:166)
[   21.117453][   T36]  __linkwatch_run_queue (net/core/link_watch.c:240)
[   21.117456][   T36]  ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   21.117458][   T36]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   21.117463][   T36]  linkwatch_event (net/core/link_watch.c:314 (discriminator 11))
[   21.117465][   T36]  ? __linkwatch_run_queue (net/core/link_watch.c:213)
[   21.117469][   T36]  process_one_work (kernel/workqueue.c:3387)
[   21.117476][   T36]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[   21.117479][   T36]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   21.117486][   T36]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   21.117494][   T36]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   21.117496][   T36]  kthread (kernel/kthread.c:436)
[   21.117498][   T36]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   21.117502][   T36]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   21.117504][   T36]  ret_from_fork (arch/x86/kernel/process.c:158)
[   21.117509][   T36]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[   21.117512][   T36]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   21.117516][   T36]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   21.117518][   T36]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   22.875125][  T493] softirqs last disabled at (15552): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   22.875128][  T493] Preemption disabled at:
| [   22.875129][  T493] vprintk_emit (kernel/printk/printk.c:2471)
| [   22.875137][  T493] Tainted: [W]=WARN
[   22.875138][  T493] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   22.875139][  T493] Call Trace:
[   22.875140][  T493]  <TASK>
[   22.875142][  T493]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   22.875147][  T493]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   22.875149][  T493]  __might_resched.cold (kernel/sched/core.c:9234)
[   22.875153][  T493]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   22.875158][  T493]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   22.875162][  T493]  __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))
[   22.875164][  T493]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   22.875171][  T493]  ? 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)
[   22.875174][  T493]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   22.875177][  T493]  put_chars (drivers/char/virtio_console.c:1176)
[   22.875179][  T493]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   22.875186][  T493]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   22.875193][  T493]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   22.875196][  T493]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   22.875201][  T493]  console_emit_next_record (kernel/printk/printk.c:3183)
[   22.875205][  T493]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   22.875206][  T493]  ? 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))
[   22.875210][  T493]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.875212][  T493]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   22.875216][  T493]  console_flush_one_record (kernel/printk/printk.c:3268)
[   22.875220][  T493]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   22.875222][  T493]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.875227][  T493]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   22.875230][  T493]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   22.875232][  T493]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.875233][  T493]  ? 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)
[   22.875237][  T493]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   22.875239][  T493]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   22.875241][  T493]  vprintk_emit (kernel/printk/printk.c:2479)
[   22.875245][  T493]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   22.875247][  T493]  ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1227 (discriminator 6))
[   22.875252][  T493]  _printk (kernel/printk/printk.c:2504)
[   22.875256][  T493]  ? snapshot_read.cold (user.c:?)
[   22.875258][  T493]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   22.875260][  T493]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   22.875263][  T493]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   22.875265][  T493]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   22.875268][  T493]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   22.875271][  T493]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   22.875273][  T493]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   22.875276][  T493]  ? netdev_notice (net/core/dev.c:13194)
[   22.875279][  T493]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   22.875282][  T493]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   22.875284][  T493]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   22.875288][  T493]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   22.875290][  T493]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   22.875292][  T493]  ? register_netdev (net/core/dev.c:11618)
[   22.875293][  T493]  ? 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))
[   22.875299][  T493]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   22.875301][  T493]  ? __kernel_text_address (kernel/extable.c:79)
[   22.875304][  T493]  ? write_profile (profile.c:?)
[   22.875308][  T493]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   22.875314][  T493]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   22.875317][  T493]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   22.875319][  T493]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   22.875320][  T493]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   22.875322][  T493]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   22.875325][  T493]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   22.875327][  T493]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   22.875329][  T493]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   22.875331][  T493]  ? kasan_save_stack (mm/kasan/common.c:58)
[   22.875333][  T493]  ? kasan_save_stack (mm/kasan/common.c:57)
[   22.875334][  T493]  ? kasan_save_track (mm/kasan/common.c:78)
[   22.875335][  T493]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   22.875338][  T493]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.875339][  T493]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   22.875342][  T493]  ? ___sys_sendmsg (net/socket.c:2758)
[   22.875346][  T493]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   22.875348][  T493]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   22.875351][  T493]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.875352][  T493]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   22.875354][  T493]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.875355][  T493]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.875357][  T493]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   22.875359][  T493]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   22.875360][  T493]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   22.875362][  T493]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   22.875365][  T493]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   22.875367][  T493]  ? nla_get_range_signed (lib/nlattr.c:270)
[   22.875371][  T493]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.875374][  T493]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   22.875379][  T493]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   22.875384][  T493]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   22.875386][  T493]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.875390][  T493]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   22.875392][  T493]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   22.875394][  T493]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   22.875396][  T493]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   22.875399][  T493]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   22.875401][  T493]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   22.875404][  T493]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   22.875406][  T493]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.875410][  T493]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   22.875412][  T493]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   22.875415][  T493]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   22.875418][  T493]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   22.875421][  T493]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   22.875428][  T493]  ? 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))
[   22.875429][  T493]  ? 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))
[   22.875434][  T493]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   22.875438][  T493]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   22.875440][  T493]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   22.875444][  T493]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   22.875448][  T493]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   22.875452][  T493]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   22.875454][  T493]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   22.875459][  T493]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   22.875462][  T493]  ____sys_sendmsg (net/socket.c:2713)
[   22.875464][  T493]  ? copy_msghdr_from_user (net/socket.c:2650)
[   22.875466][  T493]  ? sock_write_iter (net/socket.c:1269)
[   22.875468][  T493]  ? move_addr_to_kernel (net/socket.c:258)
[   22.875475][  T493]  ___sys_sendmsg (net/socket.c:2767)
[   22.875478][  T493]  ? copy_msghdr_from_user (net/socket.c:2619)
[   22.875493][  T493]  __sys_sendmsg (net/socket.c:2799)
[   22.875496][  T493]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   22.875502][  T493]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.875505][  T493]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   22.875508][  T493]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   22.875511][  T493]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   22.875513][  T493] RIP: 0033:0x7f94a7ca454e
[   22.875517][  T493] 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
[   22.875518][  T493] RSP: 002b:00007ffd2e944510 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   22.875521][  T493] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007f94a7ca454e
[   22.875522][  T493] RDX: 0000000000000000 RSI: 00007ffd2e9445c0 RDI: 0000000000000005
[   22.875523][  T493] RBP: 00007ffd2e944520 R08: 0000000000000000 R09: 0000000000000000
[   22.875524][  T493] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91c01b
[   22.875525][  T493] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffd2e944c80
| [   29.976791][   T64] softirqs last disabled at (91898): br_port_carrier_check (./include/linux/spinlock.h:353 net/bridge/br_if.c:87)
| [   29.976794][   T64] Preemption disabled at:
| [   29.976794][   T64] 0x0
| [   29.976805][   T64] Tainted: [W]=WARN
[   29.976806][   T64] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   29.976807][   T64] Workqueue: events_unbound linkwatch_event
[   29.976811][   T64] Call Trace:
[   29.976812][   T64]  <TASK>
[   29.976814][   T64]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   29.976820][   T64]  __might_resched.cold (kernel/sched/core.c:9234)
[   29.976825][   T64]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   29.976829][   T64]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   29.976834][   T64]  __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))
[   29.976836][   T64]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   29.976843][   T64]  ? 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)
[   29.976845][   T64]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   29.976849][   T64]  put_chars (drivers/char/virtio_console.c:1176)
[   29.976852][   T64]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   29.976855][   T64]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   29.976858][   T64]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   29.976863][   T64]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   29.976867][   T64]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   29.976869][   T64]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   29.976873][   T64]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   29.976877][   T64]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.976880][   T64]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   29.976884][   T64]  console_emit_next_record (kernel/printk/printk.c:3183)
[   29.976888][   T64]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   29.976890][   T64]  ? 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))
[   29.976893][   T64]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.976895][   T64]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   29.976899][   T64]  console_flush_one_record (kernel/printk/printk.c:3268)
[   29.976903][   T64]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   29.976905][   T64]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   29.976911][   T64]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   29.976914][   T64]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   29.976915][   T64]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.976917][   T64]  ? 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)
[   29.976921][   T64]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   29.976923][   T64]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   29.976926][   T64]  vprintk_emit (kernel/printk/printk.c:2479)
[   29.976929][   T64]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   29.976930][   T64]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   29.976932][   T64]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   29.976935][   T64]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   29.976938][   T64]  _printk (kernel/printk/printk.c:2504)
[   29.976942][   T64]  ? snapshot_read.cold (user.c:?)
[   29.976945][   T64]  ? add_chain_block (kernel/locking/lockdep.c:3413 kernel/locking/lockdep.c:3454)
[   29.976951][   T64]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   29.976956][   T64]  br_stp_disable_port (net/bridge/br_stp_if.c:106)
[   29.976960][   T64]  br_port_carrier_check (net/bridge/br_if.c:95)
[   29.976963][   T64]  br_device_event (net/bridge/br.c:101)
[   29.976967][   T64]  ? packet_sendmsg_spkt (af_packet.c:?)
[   29.976973][   T64]  notifier_call_chain (kernel/notifier.c:85)
[   29.976979][   T64]  netif_state_change (net/core/dev.c:1625)
[   29.976983][   T64]  ? dev_deactivate (net/sched/sch_generic.c:1419)
[   29.976987][   T64]  ? call_netdevice_notifiers_info (./include/net/net_namespace.h:422 (discriminator 7))
[   29.976991][   T64]  ? rfc2863_policy (net/core/link_watch.c:52 net/core/link_watch.c:76)
[   29.976994][   T64]  ? linkwatch_do_dev (net/core/link_watch.c:184 net/core/link_watch.c:166)
[   29.976996][   T64]  __linkwatch_run_queue (net/core/link_watch.c:240)
[   29.976999][   T64]  ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   29.977001][   T64]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   29.977006][   T64]  linkwatch_event (net/core/link_watch.c:314 (discriminator 11))
[   29.977008][   T64]  ? __linkwatch_run_queue (net/core/link_watch.c:213)
[   29.977011][   T64]  process_one_work (kernel/workqueue.c:3387)
[   29.977018][   T64]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[   29.977021][   T64]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   29.977029][   T64]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   29.977033][   T64]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   29.977035][   T64]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   29.977038][   T64]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   29.977041][   T64]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   29.977043][   T64]  kthread (kernel/kthread.c:436)
[   29.977045][   T64]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   29.977049][   T64]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   29.977052][   T64]  ret_from_fork (arch/x86/kernel/process.c:158)
[   29.977056][   T64]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[   29.977060][   T64]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   29.977063][   T64]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   29.977066][   T64]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   31.328399][   T37] softirqs last disabled at (145404): br_port_carrier_check (./include/linux/spinlock.h:353 net/bridge/br_if.c:87)
| [   31.328402][   T37] Preemption disabled at:
| [   31.328402][   T37] 0x0
| [   31.328412][   T37] Tainted: [W]=WARN
[   31.328413][   T37] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   31.328415][   T37] Workqueue: events_unbound linkwatch_event
[   31.328418][   T37] Call Trace:
[   31.328419][   T37]  <TASK>
[   31.328421][   T37]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   31.328427][   T37]  __might_resched.cold (kernel/sched/core.c:9234)
[   31.328432][   T37]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   31.328436][   T37]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   31.328441][   T37]  __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))
[   31.328443][   T37]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   31.328449][   T37]  ? 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)
[   31.328452][   T37]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   31.328456][   T37]  put_chars (drivers/char/virtio_console.c:1176)
[   31.328458][   T37]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   31.328462][   T37]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   31.328465][   T37]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   31.328469][   T37]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   31.328474][   T37]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   31.328475][   T37]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   31.328480][   T37]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   31.328484][   T37]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   31.328487][   T37]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   31.328491][   T37]  console_emit_next_record (kernel/printk/printk.c:3183)
[   31.328495][   T37]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   31.328497][   T37]  ? 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))
[   31.328500][   T37]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   31.328502][   T37]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   31.328506][   T37]  console_flush_one_record (kernel/printk/printk.c:3268)
[   31.328511][   T37]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   31.328512][   T37]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   31.328518][   T37]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   31.328521][   T37]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   31.328523][   T37]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   31.328524][   T37]  ? 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)
[   31.328528][   T37]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   31.328530][   T37]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   31.328533][   T37]  vprintk_emit (kernel/printk/printk.c:2479)
[   31.328536][   T37]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   31.328538][   T37]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   31.328540][   T37]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   31.328543][   T37]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   31.328546][   T37]  _printk (kernel/printk/printk.c:2504)
[   31.328550][   T37]  ? snapshot_read.cold (user.c:?)
[   31.328553][   T37]  ? add_chain_block (kernel/locking/lockdep.c:3413 kernel/locking/lockdep.c:3454)
[   31.328560][   T37]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   31.328564][   T37]  br_stp_disable_port (net/bridge/br_stp_if.c:106)
[   31.328568][   T37]  br_port_carrier_check (net/bridge/br_if.c:95)
[   31.328575][   T37]  br_device_event (net/bridge/br.c:101)
[   31.328579][   T37]  ? packet_sendmsg_spkt (af_packet.c:?)
[   31.328585][   T37]  notifier_call_chain (kernel/notifier.c:85)
[   31.328591][   T37]  netif_state_change (net/core/dev.c:1625)
[   31.328595][   T37]  ? dev_deactivate (net/sched/sch_generic.c:1419)
[   31.328599][   T37]  ? call_netdevice_notifiers_info (./include/net/net_namespace.h:422 (discriminator 7))
[   31.328603][   T37]  ? rfc2863_policy (net/core/link_watch.c:52 net/core/link_watch.c:76)
[   31.328605][   T37]  ? linkwatch_do_dev (net/core/link_watch.c:184 net/core/link_watch.c:166)
[   31.328607][   T37]  __linkwatch_run_queue (net/core/link_watch.c:240)
[   31.328610][   T37]  ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   31.328613][   T37]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   31.328617][   T37]  linkwatch_event (net/core/link_watch.c:314 (discriminator 11))
[   31.328619][   T37]  ? __linkwatch_run_queue (net/core/link_watch.c:213)
[   31.328623][   T37]  process_one_work (kernel/workqueue.c:3387)
[   31.328630][   T37]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[   31.328633][   T37]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   31.328641][   T37]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   31.328648][   T37]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   31.328651][   T37]  kthread (kernel/kthread.c:436)
[   31.328653][   T37]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   31.328656][   T37]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   31.328659][   T37]  ret_from_fork (arch/x86/kernel/process.c:158)
[   31.328664][   T37]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[   31.328667][   T37]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   31.328670][   T37]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   31.328673][   T37]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   33.693766][  T222] softirqs last disabled at (63450): br_port_carrier_check (./include/linux/spinlock.h:353 net/bridge/br_if.c:87)
| [   33.693769][  T222] Preemption disabled at:
| [   33.693769][  T222] 0x0
| [   33.693780][  T222] Tainted: [W]=WARN
[   33.693780][  T222] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   33.693782][  T222] Workqueue: events_unbound linkwatch_event
[   33.693785][  T222] Call Trace:
[   33.693787][  T222]  <TASK>
[   33.693788][  T222]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   33.693795][  T222]  __might_resched.cold (kernel/sched/core.c:9234)
[   33.693799][  T222]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   33.693803][  T222]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   33.693808][  T222]  __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))
[   33.693809][  T222]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   33.693816][  T222]  ? 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)
[   33.693819][  T222]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   33.693822][  T222]  put_chars (drivers/char/virtio_console.c:1176)
[   33.693825][  T222]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   33.693828][  T222]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   33.693831][  T222]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   33.693836][  T222]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   33.693840][  T222]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   33.693842][  T222]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   33.693846][  T222]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   33.693850][  T222]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   33.693852][  T222]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   33.693856][  T222]  console_emit_next_record (kernel/printk/printk.c:3183)
[   33.693860][  T222]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   33.693862][  T222]  ? 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))
[   33.693866][  T222]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   33.693867][  T222]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   33.693871][  T222]  console_flush_one_record (kernel/printk/printk.c:3268)
[   33.693876][  T222]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   33.693878][  T222]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   33.693883][  T222]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   33.693886][  T222]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   33.693888][  T222]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   33.693889][  T222]  ? 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)
[   33.693893][  T222]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   33.693895][  T222]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   33.693898][  T222]  vprintk_emit (kernel/printk/printk.c:2479)
[   33.693901][  T222]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   33.693902][  T222]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   33.693905][  T222]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   33.693907][  T222]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   33.693911][  T222]  _printk (kernel/printk/printk.c:2504)
[   33.693914][  T222]  ? snapshot_read.cold (user.c:?)
[   33.693917][  T222]  ? add_chain_block (kernel/locking/lockdep.c:3413 kernel/locking/lockdep.c:3454)
[   33.693923][  T222]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   33.693928][  T222]  br_stp_disable_port (net/bridge/br_stp_if.c:106)
[   33.693931][  T222]  br_port_carrier_check (net/bridge/br_if.c:95)
[   33.693935][  T222]  br_device_event (net/bridge/br.c:101)
[   33.693939][  T222]  ? packet_sendmsg_spkt (af_packet.c:?)
[   33.693945][  T222]  notifier_call_chain (kernel/notifier.c:85)
[   33.693951][  T222]  netif_state_change (net/core/dev.c:1625)
[   33.693954][  T222]  ? dev_deactivate (net/sched/sch_generic.c:1419)
[   33.693958][  T222]  ? call_netdevice_notifiers_info (./include/net/net_namespace.h:422 (discriminator 7))
[   33.693962][  T222]  ? rfc2863_policy (net/core/link_watch.c:52 net/core/link_watch.c:76)
[   33.693964][  T222]  ? linkwatch_do_dev (net/core/link_watch.c:184 net/core/link_watch.c:166)
[   33.693966][  T222]  __linkwatch_run_queue (net/core/link_watch.c:240)
[   33.693969][  T222]  ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   33.693972][  T222]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   33.693976][  T222]  linkwatch_event (net/core/link_watch.c:314 (discriminator 11))
[   33.693978][  T222]  ? __linkwatch_run_queue (net/core/link_watch.c:213)
[   33.693982][  T222]  process_one_work (kernel/workqueue.c:3387)
[   33.693988][  T222]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[   33.693991][  T222]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   33.693999][  T222]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   33.694003][  T222]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   33.694005][  T222]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   33.694008][  T222]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   33.694011][  T222]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   33.694013][  T222]  kthread (kernel/kthread.c:436)
[   33.694015][  T222]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   33.694018][  T222]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   33.694021][  T222]  ret_from_fork (arch/x86/kernel/process.c:158)
[   33.694025][  T222]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[   33.694029][  T222]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   33.694032][  T222]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   33.694035][  T222]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   35.788201][  T777] softirqs last disabled at (23870): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   35.788203][  T777] Preemption disabled at:
| [   35.788204][  T777] vprintk_emit (kernel/printk/printk.c:2471)
| [   35.788212][  T777] Tainted: [W]=WARN
[   35.788213][  T777] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.788214][  T777] Call Trace:
[   35.788216][  T777]  <TASK>
[   35.788217][  T777]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   35.788223][  T777]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   35.788225][  T777]  __might_resched.cold (kernel/sched/core.c:9234)
[   35.788229][  T777]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   35.788234][  T777]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   35.788238][  T777]  __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))
[   35.788240][  T777]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   35.788246][  T777]  ? 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)
[   35.788249][  T777]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   35.788252][  T777]  put_chars (drivers/char/virtio_console.c:1176)
[   35.788255][  T777]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   35.788261][  T777]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   35.788268][  T777]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   35.788271][  T777]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   35.788275][  T777]  console_emit_next_record (kernel/printk/printk.c:3183)
[   35.788279][  T777]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   35.788281][  T777]  ? 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))
[   35.788284][  T777]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   35.788287][  T777]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   35.788291][  T777]  console_flush_one_record (kernel/printk/printk.c:3268)
[   35.788295][  T777]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   35.788297][  T777]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   35.788302][  T777]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   35.788305][  T777]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   35.788307][  T777]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   35.788308][  T777]  ? 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)
[   35.788312][  T777]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   35.788314][  T777]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   35.788316][  T777]  vprintk_emit (kernel/printk/printk.c:2479)
[   35.788319][  T777]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   35.788322][  T777]  ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1227 (discriminator 6))
[   35.788326][  T777]  _printk (kernel/printk/printk.c:2504)
[   35.788330][  T777]  ? snapshot_read.cold (user.c:?)
[   35.788332][  T777]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   35.788334][  T777]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   35.788337][  T777]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   35.788339][  T777]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   35.788343][  T777]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   35.788346][  T777]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   35.788348][  T777]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   35.788350][  T777]  ? netdev_notice (net/core/dev.c:13194)
[   35.788353][  T777]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   35.788356][  T777]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   35.788359][  T777]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   35.788362][  T777]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   35.788364][  T777]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   35.788366][  T777]  ? register_netdev (net/core/dev.c:11618)
[   35.788367][  T777]  ? 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))
[   35.788372][  T777]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   35.788375][  T777]  ? __kernel_text_address (kernel/extable.c:79)
[   35.788377][  T777]  ? write_profile (profile.c:?)
[   35.788381][  T777]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   35.788387][  T777]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   35.788390][  T777]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   35.788392][  T777]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   35.788393][  T777]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   35.788395][  T777]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   35.788398][  T777]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   35.788400][  T777]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   35.788402][  T777]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   35.788404][  T777]  ? kasan_save_stack (mm/kasan/common.c:58)
[   35.788406][  T777]  ? kasan_save_stack (mm/kasan/common.c:57)
[   35.788407][  T777]  ? kasan_save_track (mm/kasan/common.c:78)
[   35.788409][  T777]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   35.788411][  T777]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   35.788413][  T777]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   35.788415][  T777]  ? ___sys_sendmsg (net/socket.c:2758)
[   35.788419][  T777]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   35.788421][  T777]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   35.788424][  T777]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   35.788425][  T777]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   35.788427][  T777]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   35.788428][  T777]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   35.788430][  T777]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   35.788432][  T777]  ? __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)
[   35.788433][  T777]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   35.788435][  T777]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   35.788439][  T777]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   35.788440][  T777]  ? nla_get_range_signed (lib/nlattr.c:270)
[   35.788444][  T777]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   35.788447][  T777]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   35.788452][  T777]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   35.788457][  T777]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   35.788459][  T777]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   35.788463][  T777]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   35.788465][  T777]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   35.788467][  T777]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   35.788468][  T777]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   35.788472][  T777]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   35.788474][  T777]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   35.788477][  T777]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   35.788479][  T777]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   35.788483][  T777]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   35.788485][  T777]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   35.788488][  T777]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   35.788491][  T777]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   35.788494][  T777]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   35.788500][  T777]  ? 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))
[   35.788502][  T777]  ? 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))
[   35.788506][  T777]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   35.788510][  T777]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   35.788512][  T777]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   35.788516][  T777]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   35.788520][  T777]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   35.788524][  T777]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   35.788526][  T777]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   35.788531][  T777]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   35.788533][  T777]  ____sys_sendmsg (net/socket.c:2713)
[   35.788536][  T777]  ? copy_msghdr_from_user (net/socket.c:2650)
[   35.788538][  T777]  ? sock_write_iter (net/socket.c:1269)
[   35.788540][  T777]  ? move_addr_to_kernel (net/socket.c:258)
[   35.788547][  T777]  ___sys_sendmsg (net/socket.c:2767)
[   35.788549][  T777]  ? copy_msghdr_from_user (net/socket.c:2619)
[   35.788565][  T777]  __sys_sendmsg (net/socket.c:2799)
[   35.788567][  T777]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   35.788576][  T777]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   35.788579][  T777]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   35.788582][  T777]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   35.788585][  T777]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   35.788587][  T777] RIP: 0033:0x7f3dccea554e
[   35.788590][  T777] 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
[   35.788592][  T777] RSP: 002b:00007ffce1b332a0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   35.788595][  T777] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007f3dccea554e
[   35.788596][  T777] RDX: 0000000000000000 RSI: 00007ffce1b33350 RDI: 0000000000000005
[   35.788597][  T777] RBP: 00007ffce1b332b0 R08: 0000000000000000 R09: 0000000000000000
[   35.788597][  T777] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91c028
[   35.788598][  T777] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffce1b33a10
| [   36.805621][  T828] softirqs last disabled at (15692): inet6_fill_ifla6_attrs (net/ipv6/addrconf.c:5883)
| [   36.805623][  T828] Preemption disabled at:
| [   36.805624][  T828] vprintk_emit (kernel/printk/printk.c:2471)
| [   36.805632][  T828] Tainted: [W]=WARN
[   36.805633][  T828] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   36.805634][  T828] Call Trace:
[   36.805635][  T828]  <TASK>
[   36.805637][  T828]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   36.805643][  T828]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   36.805644][  T828]  __might_resched.cold (kernel/sched/core.c:9234)
[   36.805649][  T828]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   36.805653][  T828]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   36.805657][  T828]  __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))
[   36.805659][  T828]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   36.805666][  T828]  ? 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)
[   36.805668][  T828]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   36.805672][  T828]  put_chars (drivers/char/virtio_console.c:1176)
[   36.805674][  T828]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   36.805675][  T828]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   36.805679][  T828]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   36.805681][  T828]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   36.805686][  T828]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   36.805690][  T828]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   36.805695][  T828]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   36.805698][  T828]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   36.805702][  T828]  console_emit_next_record (kernel/printk/printk.c:3183)
[   36.805706][  T828]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   36.805708][  T828]  ? 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))
[   36.805711][  T828]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   36.805713][  T828]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   36.805717][  T828]  console_flush_one_record (kernel/printk/printk.c:3268)
[   36.805721][  T828]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   36.805723][  T828]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   36.805728][  T828]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   36.805731][  T828]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   36.805733][  T828]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   36.805734][  T828]  ? 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)
[   36.805738][  T828]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   36.805739][  T828]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   36.805742][  T828]  vprintk_emit (kernel/printk/printk.c:2479)
[   36.805745][  T828]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   36.805747][  T828]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   36.805750][  T828]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   36.805753][  T828]  _printk (kernel/printk/printk.c:2504)
[   36.805757][  T828]  ? snapshot_read.cold (user.c:?)
[   36.805760][  T828]  ? br_multicast_flood (??:?)
[   36.805763][  T828]  ? rtnl_newlink_create (net/core/rtnetlink.c:3982 (discriminator 1))
[   36.805764][  T828]  ? __rtnl_newlink (net/core/rtnetlink.c:4098)
[   36.805766][  T828]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   36.805770][  T828]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   36.805774][  T828]  br_init_port (net/bridge/br_stp_if.c:39)
[   36.805776][  T828]  new_nbp (net/bridge/br_if.c:449)
[   36.805780][  T828]  br_add_if (net/bridge/br_if.c:592)
[   36.805782][  T828]  ? netif_set_allmulti (./include/net/netdev_lock.h:33 ./include/net/netdev_lock.h:69 net/core/dev.c:9712)
[   36.805790][  T828]  do_set_master (net/core/rtnetlink.c:3071)
[   36.805794][  T828]  rtnl_newlink_create (net/core/rtnetlink.c:3982 (discriminator 1))
[   36.805797][  T828]  ? rtnl_create_link (net/core/rtnetlink.c:3756)
[   36.805799][  T828]  ? __dev_get_by_name (net/core/dev.c:905)
[   36.805801][  T828]  ? rtnl_dev_get (net/core/rtnetlink.c:3538)
[   36.805810][  T828]  __rtnl_newlink (net/core/rtnetlink.c:4098)
[   36.805816][  T828]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   36.805821][  T828]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   36.805823][  T828]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   36.805830][  T828]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   36.805833][  T828]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   36.805835][  T828]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   36.805839][  T828]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   36.805840][  T828]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   36.805844][  T828]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   36.805846][  T828]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   36.805850][  T828]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   36.805853][  T828]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   36.805856][  T828]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   36.805862][  T828]  ? 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))
[   36.805864][  T828]  ? 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))
[   36.805868][  T828]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   36.805872][  T828]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   36.805878][  T828]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   36.805882][  T828]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   36.805885][  T828]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   36.805887][  T828]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   36.805892][  T828]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   36.805896][  T828]  ____sys_sendmsg (net/socket.c:2713)
[   36.805899][  T828]  ? copy_msghdr_from_user (net/socket.c:2650)
[   36.805901][  T828]  ? sock_write_iter (net/socket.c:1269)
[   36.805902][  T828]  ? move_addr_to_kernel (net/socket.c:258)
[   36.805907][  T828]  ? do_fault_around (./include/linux/rcupdate.h:882 mm/memory.c:5961)
[   36.805909][  T828]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   36.805913][  T828]  ___sys_sendmsg (net/socket.c:2767)
[   36.805914][  T828]  ? do_pte_missing (mm/memory.c:5991 mm/memory.c:6134 mm/memory.c:4700)
[   36.805917][  T828]  ? copy_msghdr_from_user (net/socket.c:2619)
[   36.805919][  T828]  ? rcu_read_unlock (./include/linux/rcupdate.h:878 (discriminator 6))
[   36.805934][  T828]  __sys_sendmsg (net/socket.c:2799)
[   36.805937][  T828]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   36.805943][  T828]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   36.805944][  T828]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   36.805947][  T828]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   36.805951][  T828]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   36.805954][  T828]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   36.805956][  T828] RIP: 0033:0x7fdcbd29e54e
[   36.805960][  T828] 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
[   36.805961][  T828] RSP: 002b:00007ffd2101fef0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   36.805964][  T828] RAX: ffffffffffffffda RBX: 00007ffd210206b8 RCX: 00007fdcbd29e54e
[   36.805965][  T828] RDX: 0000000000000000 RSI: 00007ffd2101ffa0 RDI: 0000000000000005
[   36.805966][  T828] RBP: 00007ffd2101ff00 R08: 0000000000000000 R09: 0000000000000000
[   36.805967][  T828] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91c029
[   36.805968][  T828] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffd21020670
| [   42.644730][   T36] softirqs last disabled at (234964): br_port_carrier_check (./include/linux/spinlock.h:353 net/bridge/br_if.c:87)
| [   42.644733][   T36] Preemption disabled at:
| [   42.644733][   T36] 0x0
| [   42.644743][   T36] Tainted: [W]=WARN
[   42.644744][   T36] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   42.644746][   T36] Workqueue: events_unbound linkwatch_event
[   42.644749][   T36] Call Trace:
[   42.644750][   T36]  <TASK>
[   42.644752][   T36]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   42.644759][   T36]  __might_resched.cold (kernel/sched/core.c:9234)
[   42.644763][   T36]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   42.644767][   T36]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   42.644772][   T36]  __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))
[   42.644774][   T36]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   42.644780][   T36]  ? 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)
[   42.644783][   T36]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   42.644787][   T36]  put_chars (drivers/char/virtio_console.c:1176)
[   42.644789][   T36]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   42.644793][   T36]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   42.644796][   T36]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   42.644801][   T36]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   42.644805][   T36]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   42.644807][   T36]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   42.644811][   T36]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   42.644815][   T36]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   42.644818][   T36]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   42.644822][   T36]  console_emit_next_record (kernel/printk/printk.c:3183)
[   42.644826][   T36]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   42.644828][   T36]  ? 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))
[   42.644831][   T36]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   42.644833][   T36]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   42.644837][   T36]  console_flush_one_record (kernel/printk/printk.c:3268)
[   42.644841][   T36]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   42.644843][   T36]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   42.644848][   T36]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   42.644851][   T36]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   42.644853][   T36]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   42.644855][   T36]  ? 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)
[   42.644859][   T36]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   42.644861][   T36]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   42.644863][   T36]  vprintk_emit (kernel/printk/printk.c:2479)
[   42.644867][   T36]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   42.644868][   T36]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   42.644870][   T36]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   42.644873][   T36]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   42.644877][   T36]  _printk (kernel/printk/printk.c:2504)
[   42.644881][   T36]  ? snapshot_read.cold (user.c:?)
[   42.644883][   T36]  ? add_chain_block (kernel/locking/lockdep.c:3413 kernel/locking/lockdep.c:3454)
[   42.644890][   T36]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   42.644894][   T36]  br_stp_disable_port (net/bridge/br_stp_if.c:106)
[   42.644898][   T36]  br_port_carrier_check (net/bridge/br_if.c:95)
[   42.644902][   T36]  br_device_event (net/bridge/br.c:101)
[   42.644905][   T36]  ? packet_sendmsg_spkt (af_packet.c:?)
[   42.644911][   T36]  notifier_call_chain (kernel/notifier.c:85)
[   42.644917][   T36]  netif_state_change (net/core/dev.c:1625)
[   42.644921][   T36]  ? dev_deactivate (net/sched/sch_generic.c:1419)
[   42.644925][   T36]  ? call_netdevice_notifiers_info (./include/net/net_namespace.h:422 (discriminator 7))
[   42.644929][   T36]  ? rfc2863_policy (net/core/link_watch.c:52 net/core/link_watch.c:76)
[   42.644931][   T36]  ? linkwatch_do_dev (net/core/link_watch.c:184 net/core/link_watch.c:166)
[   42.644933][   T36]  __linkwatch_run_queue (net/core/link_watch.c:240)
[   42.644936][   T36]  ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   42.644939][   T36]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   42.644943][   T36]  linkwatch_event (net/core/link_watch.c:314 (discriminator 11))
[   42.644946][   T36]  ? __linkwatch_run_queue (net/core/link_watch.c:213)
[   42.644949][   T36]  process_one_work (kernel/workqueue.c:3387)
[   42.644956][   T36]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[   42.644959][   T36]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   42.644967][   T36]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   42.644974][   T36]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   42.644976][   T36]  kthread (kernel/kthread.c:436)
[   42.644978][   T36]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   42.644982][   T36]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   42.644984][   T36]  ret_from_fork (arch/x86/kernel/process.c:158)
[   42.644989][   T36]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[   42.644992][   T36]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   42.644996][   T36]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   42.644998][   T36]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   46.130006][   T72] softirqs last disabled at (247085): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   46.130009][   T72] Preemption disabled at:
| [   46.130009][   T72] vprintk_emit (kernel/printk/printk.c:2471)
| [   46.130018][   T72] Tainted: [W]=WARN
[   46.130018][   T72] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   46.130020][   T72] Workqueue: netns cleanup_net
[   46.130023][   T72] Call Trace:
[   46.130025][   T72]  <TASK>
[   46.130026][   T72]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   46.130032][   T72]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   46.130034][   T72]  __might_resched.cold (kernel/sched/core.c:9234)
[   46.130039][   T72]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   46.130042][   T72]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   46.130047][   T72]  __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))
[   46.130049][   T72]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   46.130055][   T72]  ? 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)
[   46.130058][   T72]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   46.130062][   T72]  put_chars (drivers/char/virtio_console.c:1176)
[   46.130064][   T72]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   46.130065][   T72]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   46.130069][   T72]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   46.130072][   T72]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   46.130076][   T72]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   46.130080][   T72]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   46.130085][   T72]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   46.130089][   T72]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   46.130093][   T72]  console_emit_next_record (kernel/printk/printk.c:3183)
[   46.130097][   T72]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   46.130099][   T72]  ? 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))
[   46.130103][   T72]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   46.130104][   T72]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   46.130108][   T72]  console_flush_one_record (kernel/printk/printk.c:3268)
[   46.130112][   T72]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   46.130114][   T72]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   46.130120][   T72]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   46.130123][   T72]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   46.130125][   T72]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   46.130126][   T72]  ? 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)
[   46.130130][   T72]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   46.130132][   T72]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   46.130134][   T72]  vprintk_emit (kernel/printk/printk.c:2479)
[   46.130138][   T72]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   46.130139][   T72]  ? cleanup_net (net/core/net_namespace.c:706)
[   46.130141][   T72]  ? worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   46.130142][   T72]  ? kthread (kernel/kthread.c:436)
[   46.130145][   T72]  ? ret_from_fork (arch/x86/kernel/process.c:158)
[   46.130147][   T72]  ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
[   46.130152][   T72]  _printk (kernel/printk/printk.c:2504)
[   46.130156][   T72]  ? snapshot_read.cold (user.c:?)
[   46.130164][   T72]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   46.130168][   T72]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   46.130172][   T72]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   46.130175][   T72]  ? netdev_notice (net/core/dev.c:13194)
[   46.130179][   T72]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   46.130181][   T72]  ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1))
[   46.130183][   T72]  ? down_write_nested (kernel/locking/rwsem.c:1759)
[   46.130185][   T72]  ? 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)
[   46.130188][   T72]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[   46.130192][   T72]  dev_set_allmulti (net/core/dev_api.c:315)
[   46.130196][   T72]  del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341)
[   46.130202][   T72]  br_dev_delete (net/bridge/br_if.c:387)
[   46.130206][   T72]  br_net_exit_rtnl (net/bridge/br.c:414)
[   46.130209][   T72]  ops_undo_list (net/core/net_namespace.c:181 net/core/net_namespace.c:249)
[   46.130213][   T72]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   46.130216][   T72]  ? netns_install (./include/linux/ns_common.h:26)
[   46.130218][   T72]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   46.130221][   T72]  ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563)
[   46.130226][   T72]  cleanup_net (net/core/net_namespace.c:706)
[   46.130229][   T72]  ? net_passive_dec (./include/linux/llist.h:241)
[   46.130233][   T72]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   46.130235][   T72]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   46.130238][   T72]  process_one_work (kernel/workqueue.c:3387)
[   46.130245][   T72]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[   46.130248][   T72]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   46.130255][   T72]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   46.130259][   T72]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   46.130262][   T72]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   46.130264][   T72]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   46.130267][   T72]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   46.130269][   T72]  kthread (kernel/kthread.c:436)
[   46.130271][   T72]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   46.130274][   T72]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   46.130277][   T72]  ret_from_fork (arch/x86/kernel/process.c:158)
[   46.130280][   T72]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[   46.130283][   T72]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   46.130287][   T72]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   46.130290][   T72]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   47.452593][ T1032] softirqs last disabled at (21878): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   47.452595][ T1032] Preemption disabled at:
| [   47.452596][ T1032] vprintk_emit (kernel/printk/printk.c:2471)
| [   47.452604][ T1032] Tainted: [W]=WARN
[   47.452605][ T1032] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   47.452607][ T1032] Call Trace:
[   47.452608][ T1032]  <TASK>
[   47.452610][ T1032]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   47.452616][ T1032]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   47.452617][ T1032]  __might_resched.cold (kernel/sched/core.c:9234)
[   47.452621][ T1032]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   47.452625][ T1032]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   47.452630][ T1032]  __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))
[   47.452632][ T1032]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   47.452638][ T1032]  ? 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)
[   47.452641][ T1032]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   47.452644][ T1032]  put_chars (drivers/char/virtio_console.c:1176)
[   47.452647][ T1032]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   47.452653][ T1032]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   47.452660][ T1032]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   47.452663][ T1032]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   47.452668][ T1032]  console_emit_next_record (kernel/printk/printk.c:3183)
[   47.452672][ T1032]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   47.452674][ T1032]  ? 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))
[   47.452677][ T1032]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   47.452679][ T1032]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   47.452683][ T1032]  console_flush_one_record (kernel/printk/printk.c:3268)
[   47.452687][ T1032]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   47.452690][ T1032]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   47.452695][ T1032]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   47.452697][ T1032]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   47.452699][ T1032]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   47.452701][ T1032]  ? 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)
[   47.452705][ T1032]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   47.452706][ T1032]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   47.452709][ T1032]  vprintk_emit (kernel/printk/printk.c:2479)
[   47.452712][ T1032]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   47.452714][ T1032]  ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1227 (discriminator 6))
[   47.452720][ T1032]  _printk (kernel/printk/printk.c:2504)
[   47.452723][ T1032]  ? snapshot_read.cold (user.c:?)
[   47.452725][ T1032]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   47.452728][ T1032]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   47.452730][ T1032]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   47.452732][ T1032]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   47.452736][ T1032]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   47.452739][ T1032]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   47.452741][ T1032]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   47.452744][ T1032]  ? netdev_notice (net/core/dev.c:13194)
[   47.452746][ T1032]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   47.452749][ T1032]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   47.452752][ T1032]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   47.452755][ T1032]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   47.452757][ T1032]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   47.452759][ T1032]  ? register_netdev (net/core/dev.c:11618)
[   47.452761][ T1032]  ? 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))
[   47.452766][ T1032]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   47.452768][ T1032]  ? __kernel_text_address (kernel/extable.c:79)
[   47.452771][ T1032]  ? write_profile (profile.c:?)
[   47.452775][ T1032]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   47.452781][ T1032]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   47.452784][ T1032]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   47.452786][ T1032]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   47.452787][ T1032]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   47.452789][ T1032]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   47.452792][ T1032]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   47.452794][ T1032]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   47.452796][ T1032]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   47.452798][ T1032]  ? kasan_save_stack (mm/kasan/common.c:58)
[   47.452800][ T1032]  ? kasan_save_stack (mm/kasan/common.c:57)
[   47.452802][ T1032]  ? kasan_save_track (mm/kasan/common.c:78)
[   47.452803][ T1032]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   47.452805][ T1032]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   47.452807][ T1032]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   47.452810][ T1032]  ? ___sys_sendmsg (net/socket.c:2758)
[   47.452813][ T1032]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   47.452815][ T1032]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   47.452818][ T1032]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   47.452820][ T1032]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   47.452821][ T1032]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   47.452822][ T1032]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   47.452824][ T1032]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   47.452826][ T1032]  ? __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)
[   47.452828][ T1032]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   47.452830][ T1032]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   47.452833][ T1032]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   47.452834][ T1032]  ? nla_get_range_signed (lib/nlattr.c:270)
[   47.452839][ T1032]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   47.452841][ T1032]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   47.452846][ T1032]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   47.452851][ T1032]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   47.452853][ T1032]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   47.452857][ T1032]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   47.452859][ T1032]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   47.452861][ T1032]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   47.452863][ T1032]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   47.452867][ T1032]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   47.452868][ T1032]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   47.452872][ T1032]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   47.452873][ T1032]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   47.452877][ T1032]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   47.452879][ T1032]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   47.452882][ T1032]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   47.452885][ T1032]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   47.452888][ T1032]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   47.452894][ T1032]  ? 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))
[   47.452896][ T1032]  ? 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))
[   47.452901][ T1032]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   47.452904][ T1032]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   47.452907][ T1032]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   47.452911][ T1032]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   47.452915][ T1032]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   47.452919][ T1032]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   47.452920][ T1032]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   47.452926][ T1032]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   47.452928][ T1032]  ____sys_sendmsg (net/socket.c:2713)
[   47.452930][ T1032]  ? copy_msghdr_from_user (net/socket.c:2650)
[   47.452933][ T1032]  ? sock_write_iter (net/socket.c:1269)
[   47.452934][ T1032]  ? move_addr_to_kernel (net/socket.c:258)
[   47.452941][ T1032]  ___sys_sendmsg (net/socket.c:2767)
[   47.452944][ T1032]  ? copy_msghdr_from_user (net/socket.c:2619)
[   47.452959][ T1032]  __sys_sendmsg (net/socket.c:2799)
[   47.452962][ T1032]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   47.452969][ T1032]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   47.452972][ T1032]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   47.452975][ T1032]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   47.452977][ T1032]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   47.452979][ T1032] RIP: 0033:0x7fe083dbe54e
[   47.452983][ T1032] 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
[   47.452985][ T1032] RSP: 002b:00007ffe64a55e20 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   47.452987][ T1032] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007fe083dbe54e
[   47.452989][ T1032] RDX: 0000000000000000 RSI: 00007ffe64a55ed0 RDI: 0000000000000005
[   47.452989][ T1032] RBP: 00007ffe64a55e30 R08: 0000000000000000 R09: 0000000000000000
[   47.452990][ T1032] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91c033
[   47.452991][ T1032] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffe64a56590
| [   48.475602][ T1085] softirqs last disabled at (27644): inet6_fill_ifla6_attrs (net/ipv6/addrconf.c:5883)
| [   48.475604][ T1085] Preemption disabled at:
| [   48.475604][ T1085] vprintk_emit (kernel/printk/printk.c:2471)
| [   48.475612][ T1085] Tainted: [W]=WARN
[   48.475613][ T1085] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   48.475615][ T1085] Call Trace:
[   48.475617][ T1085]  <TASK>
[   48.475618][ T1085]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   48.475624][ T1085]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   48.475626][ T1085]  __might_resched.cold (kernel/sched/core.c:9234)
[   48.475630][ T1085]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   48.475635][ T1085]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   48.475639][ T1085]  __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))
[   48.475641][ T1085]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   48.475647][ T1085]  ? 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)
[   48.475650][ T1085]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   48.475653][ T1085]  put_chars (drivers/char/virtio_console.c:1176)
[   48.475656][ T1085]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   48.475657][ T1085]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   48.475660][ T1085]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   48.475663][ T1085]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   48.475668][ T1085]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   48.475672][ T1085]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   48.475677][ T1085]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   48.475680][ T1085]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   48.475685][ T1085]  console_emit_next_record (kernel/printk/printk.c:3183)
[   48.475689][ T1085]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   48.475691][ T1085]  ? 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))
[   48.475694][ T1085]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   48.475695][ T1085]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   48.475699][ T1085]  console_flush_one_record (kernel/printk/printk.c:3268)
[   48.475704][ T1085]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   48.475705][ T1085]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   48.475711][ T1085]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   48.475713][ T1085]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   48.475715][ T1085]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   48.475717][ T1085]  ? 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)
[   48.475721][ T1085]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   48.475723][ T1085]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   48.475725][ T1085]  vprintk_emit (kernel/printk/printk.c:2479)
[   48.475728][ T1085]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   48.475730][ T1085]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   48.475733][ T1085]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   48.475736][ T1085]  _printk (kernel/printk/printk.c:2504)
[   48.475740][ T1085]  ? snapshot_read.cold (user.c:?)
[   48.475743][ T1085]  ? br_multicast_flood (??:?)
[   48.475746][ T1085]  ? rtnl_newlink_create (net/core/rtnetlink.c:3982 (discriminator 1))
[   48.475748][ T1085]  ? __rtnl_newlink (net/core/rtnetlink.c:4098)
[   48.475749][ T1085]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   48.475753][ T1085]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   48.475757][ T1085]  br_init_port (net/bridge/br_stp_if.c:39)
[   48.475760][ T1085]  new_nbp (net/bridge/br_if.c:449)
[   48.475763][ T1085]  br_add_if (net/bridge/br_if.c:592)
[   48.475765][ T1085]  ? netif_set_allmulti (./include/net/netdev_lock.h:33 ./include/net/netdev_lock.h:69 net/core/dev.c:9712)
[   48.475773][ T1085]  do_set_master (net/core/rtnetlink.c:3071)
[   48.475777][ T1085]  rtnl_newlink_create (net/core/rtnetlink.c:3982 (discriminator 1))
[   48.475780][ T1085]  ? rtnl_create_link (net/core/rtnetlink.c:3756)
[   48.475782][ T1085]  ? __dev_get_by_name (net/core/dev.c:905)
[   48.475784][ T1085]  ? rtnl_dev_get (net/core/rtnetlink.c:3538)
[   48.475794][ T1085]  __rtnl_newlink (net/core/rtnetlink.c:4098)
[   48.475800][ T1085]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   48.475806][ T1085]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   48.475808][ T1085]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   48.475814][ T1085]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   48.475818][ T1085]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   48.475820][ T1085]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   48.475823][ T1085]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   48.475824][ T1085]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   48.475829][ T1085]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   48.475831][ T1085]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   48.475835][ T1085]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   48.475838][ T1085]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   48.475841][ T1085]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   48.475847][ T1085]  ? 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))
[   48.475849][ T1085]  ? 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))
[   48.475854][ T1085]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   48.475858][ T1085]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   48.475863][ T1085]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   48.475867][ T1085]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   48.475871][ T1085]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   48.475873][ T1085]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   48.475878][ T1085]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   48.475883][ T1085]  ____sys_sendmsg (net/socket.c:2713)
[   48.475885][ T1085]  ? copy_msghdr_from_user (net/socket.c:2650)
[   48.475887][ T1085]  ? sock_write_iter (net/socket.c:1269)
[   48.475889][ T1085]  ? move_addr_to_kernel (net/socket.c:258)
[   48.475893][ T1085]  ? do_fault_around (./include/linux/rcupdate.h:882 mm/memory.c:5961)
[   48.475896][ T1085]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   48.475899][ T1085]  ___sys_sendmsg (net/socket.c:2767)
[   48.475901][ T1085]  ? do_pte_missing (mm/memory.c:5991 mm/memory.c:6134 mm/memory.c:4700)
[   48.475904][ T1085]  ? copy_msghdr_from_user (net/socket.c:2619)
[   48.475906][ T1085]  ? rcu_read_unlock (./include/linux/rcupdate.h:878 (discriminator 6))
[   48.475921][ T1085]  __sys_sendmsg (net/socket.c:2799)
[   48.475924][ T1085]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   48.475929][ T1085]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   48.475931][ T1085]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   48.475934][ T1085]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   48.475938][ T1085]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   48.475941][ T1085]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   48.475943][ T1085] RIP: 0033:0x7f7d08de454e
[   48.475947][ T1085] 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
[   48.475948][ T1085] RSP: 002b:00007ffc7327d360 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   48.475951][ T1085] RAX: ffffffffffffffda RBX: 00007ffc7327db28 RCX: 00007f7d08de454e
[   48.475952][ T1085] RDX: 0000000000000000 RSI: 00007ffc7327d410 RDI: 0000000000000005
[   48.475953][ T1085] RBP: 00007ffc7327d370 R08: 0000000000000000 R09: 0000000000000000
[   48.475954][ T1085] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91c034
[   48.475955][ T1085] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffc7327dae0
| [   54.170723][  T222] softirqs last disabled at (149826): br_port_carrier_check (./include/linux/spinlock.h:353 net/bridge/br_if.c:87)
| [   54.170726][  T222] Preemption disabled at:
| [   54.170726][  T222] 0x0
| [   54.170736][  T222] Tainted: [W]=WARN
[   54.170737][  T222] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   54.170739][  T222] Workqueue: events_unbound linkwatch_event
[   54.170742][  T222] Call Trace:
[   54.170744][  T222]  <TASK>
[   54.170745][  T222]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   54.170752][  T222]  __might_resched.cold (kernel/sched/core.c:9234)
[   54.170756][  T222]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   54.170760][  T222]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   54.170765][  T222]  __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))
[   54.170767][  T222]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   54.170773][  T222]  ? 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)
[   54.170776][  T222]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   54.170780][  T222]  put_chars (drivers/char/virtio_console.c:1176)
[   54.170782][  T222]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   54.170785][  T222]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   54.170789][  T222]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   54.170793][  T222]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   54.170798][  T222]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   54.170799][  T222]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   54.170804][  T222]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   54.170808][  T222]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   54.170810][  T222]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   54.170814][  T222]  console_emit_next_record (kernel/printk/printk.c:3183)
[   54.170818][  T222]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   54.170820][  T222]  ? 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))
[   54.170824][  T222]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   54.170825][  T222]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   54.170829][  T222]  console_flush_one_record (kernel/printk/printk.c:3268)
[   54.170834][  T222]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   54.170836][  T222]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   54.170841][  T222]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   54.170844][  T222]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   54.170846][  T222]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   54.170848][  T222]  ? 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)
[   54.170851][  T222]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   54.170853][  T222]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   54.170856][  T222]  vprintk_emit (kernel/printk/printk.c:2479)
[   54.170859][  T222]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   54.170860][  T222]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   54.170863][  T222]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   54.170865][  T222]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   54.170869][  T222]  _printk (kernel/printk/printk.c:2504)
[   54.170872][  T222]  ? snapshot_read.cold (user.c:?)
[   54.170875][  T222]  ? add_chain_block (kernel/locking/lockdep.c:3413 kernel/locking/lockdep.c:3454)
[   54.170882][  T222]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   54.170886][  T222]  br_stp_disable_port (net/bridge/br_stp_if.c:106)
[   54.170889][  T222]  br_port_carrier_check (net/bridge/br_if.c:95)
[   54.170894][  T222]  br_device_event (net/bridge/br.c:101)
[   54.170897][  T222]  ? packet_sendmsg_spkt (af_packet.c:?)
[   54.170903][  T222]  notifier_call_chain (kernel/notifier.c:85)
[   54.170909][  T222]  netif_state_change (net/core/dev.c:1625)
[   54.170913][  T222]  ? dev_deactivate (net/sched/sch_generic.c:1419)
[   54.170917][  T222]  ? call_netdevice_notifiers_info (./include/net/net_namespace.h:422 (discriminator 7))
[   54.170921][  T222]  ? rfc2863_policy (net/core/link_watch.c:52 net/core/link_watch.c:76)
[   54.170923][  T222]  ? linkwatch_do_dev (net/core/link_watch.c:184 net/core/link_watch.c:166)
[   54.170925][  T222]  __linkwatch_run_queue (net/core/link_watch.c:240)
[   54.170928][  T222]  ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   54.170931][  T222]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   54.170935][  T222]  linkwatch_event (net/core/link_watch.c:314 (discriminator 11))
[   54.170937][  T222]  ? __linkwatch_run_queue (net/core/link_watch.c:213)
[   54.170941][  T222]  process_one_work (kernel/workqueue.c:3387)
[   54.170947][  T222]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[   54.170950][  T222]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   54.170958][  T222]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   54.170962][  T222]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   54.170964][  T222]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   54.170967][  T222]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   54.170970][  T222]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   54.170972][  T222]  kthread (kernel/kthread.c:436)
[   54.170974][  T222]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   54.170978][  T222]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   54.170981][  T222]  ret_from_fork (arch/x86/kernel/process.c:158)
[   54.170985][  T222]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[   54.170988][  T222]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   54.170992][  T222]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   54.170995][  T222]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   55.185389][   T64] softirqs last disabled at (239990): br_port_carrier_check (./include/linux/spinlock.h:353 net/bridge/br_if.c:87)
| [   55.185391][   T64] Preemption disabled at:
| [   55.185392][   T64] 0x0
| [   55.185401][   T64] Tainted: [W]=WARN
[   55.185402][   T64] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   55.185404][   T64] Workqueue: events_unbound linkwatch_event
[   55.185407][   T64] Call Trace:
[   55.185408][   T64]  <TASK>
[   55.185410][   T64]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   55.185416][   T64]  __might_resched.cold (kernel/sched/core.c:9234)
[   55.185422][   T64]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   55.185426][   T64]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   55.185430][   T64]  __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))
[   55.185432][   T64]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   55.185439][   T64]  ? 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)
[   55.185441][   T64]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   55.185445][   T64]  put_chars (drivers/char/virtio_console.c:1176)
[   55.185448][   T64]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   55.185451][   T64]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   55.185454][   T64]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   55.185459][   T64]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   55.185463][   T64]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   55.185464][   T64]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   55.185469][   T64]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   55.185473][   T64]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   55.185475][   T64]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   55.185480][   T64]  console_emit_next_record (kernel/printk/printk.c:3183)
[   55.185484][   T64]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   55.185486][   T64]  ? 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))
[   55.185489][   T64]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   55.185491][   T64]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   55.185495][   T64]  console_flush_one_record (kernel/printk/printk.c:3268)
[   55.185499][   T64]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   55.185501][   T64]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   55.185507][   T64]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   55.185509][   T64]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   55.185511][   T64]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   55.185513][   T64]  ? 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)
[   55.185517][   T64]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   55.185518][   T64]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   55.185521][   T64]  vprintk_emit (kernel/printk/printk.c:2479)
[   55.185525][   T64]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   55.185526][   T64]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   55.185528][   T64]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   55.185531][   T64]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   55.185534][   T64]  _printk (kernel/printk/printk.c:2504)
[   55.185538][   T64]  ? snapshot_read.cold (user.c:?)
[   55.185540][   T64]  ? add_chain_block (kernel/locking/lockdep.c:3413 kernel/locking/lockdep.c:3454)
[   55.185547][   T64]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   55.185552][   T64]  br_stp_disable_port (net/bridge/br_stp_if.c:106)
[   55.185555][   T64]  br_port_carrier_check (net/bridge/br_if.c:95)
[   55.185559][   T64]  br_device_event (net/bridge/br.c:101)
[   55.185562][   T64]  ? packet_sendmsg_spkt (af_packet.c:?)
[   55.185568][   T64]  notifier_call_chain (kernel/notifier.c:85)
[   55.185576][   T64]  netif_state_change (net/core/dev.c:1625)
[   55.185580][   T64]  ? dev_deactivate (net/sched/sch_generic.c:1419)
[   55.185584][   T64]  ? call_netdevice_notifiers_info (./include/net/net_namespace.h:422 (discriminator 7))
[   55.185588][   T64]  ? rfc2863_policy (net/core/link_watch.c:52 net/core/link_watch.c:76)
[   55.185590][   T64]  ? linkwatch_do_dev (net/core/link_watch.c:184 net/core/link_watch.c:166)
[   55.185592][   T64]  __linkwatch_run_queue (net/core/link_watch.c:240)
[   55.185595][   T64]  ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   55.185598][   T64]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   55.185602][   T64]  linkwatch_event (net/core/link_watch.c:314 (discriminator 11))
[   55.185605][   T64]  ? __linkwatch_run_queue (net/core/link_watch.c:213)
[   55.185608][   T64]  process_one_work (kernel/workqueue.c:3387)
[   55.185615][   T64]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[   55.185618][   T64]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   55.185626][   T64]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   55.185630][   T64]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   55.185632][   T64]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   55.185635][   T64]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   55.185637][   T64]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   55.185639][   T64]  kthread (kernel/kthread.c:436)
[   55.185642][   T64]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   55.185645][   T64]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   55.185648][   T64]  ret_from_fork (arch/x86/kernel/process.c:158)
[   55.185652][   T64]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[   55.185655][   T64]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   55.185659][   T64]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   55.185662][   T64]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   61.426596][   T72] softirqs last disabled at (366520): netlink_release (./include/net/sock.h:2138 net/netlink/af_netlink.c:727)
| [   61.426598][   T72] Preemption disabled at:
| [   61.426599][   T72] vprintk_emit (kernel/printk/printk.c:2471)
| [   61.426608][   T72] Tainted: [W]=WARN
[   61.426608][   T72] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   61.426610][   T72] Workqueue: netns cleanup_net
[   61.426613][   T72] Call Trace:
[   61.426615][   T72]  <TASK>
[   61.426617][   T72]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   61.426623][   T72]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   61.426625][   T72]  __might_resched.cold (kernel/sched/core.c:9234)
[   61.426629][   T72]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   61.426633][   T72]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   61.426637][   T72]  __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))
[   61.426639][   T72]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   61.426646][   T72]  ? 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)
[   61.426649][   T72]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   61.426652][   T72]  put_chars (drivers/char/virtio_console.c:1176)
[   61.426655][   T72]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   61.426656][   T72]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   61.426660][   T72]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   61.426663][   T72]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   61.426668][   T72]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   61.426672][   T72]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   61.426677][   T72]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   61.426680][   T72]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   61.426685][   T72]  console_emit_next_record (kernel/printk/printk.c:3183)
[   61.426689][   T72]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   61.426691][   T72]  ? 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))
[   61.426695][   T72]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   61.426696][   T72]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   61.426701][   T72]  console_flush_one_record (kernel/printk/printk.c:3268)
[   61.426705][   T72]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   61.426707][   T72]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   61.426712][   T72]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   61.426715][   T72]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   61.426717][   T72]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   61.426719][   T72]  ? 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)
[   61.426723][   T72]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   61.426725][   T72]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   61.426727][   T72]  vprintk_emit (kernel/printk/printk.c:2479)
[   61.426731][   T72]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   61.426732][   T72]  ? cleanup_net (net/core/net_namespace.c:706)
[   61.426734][   T72]  ? worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   61.426735][   T72]  ? kthread (kernel/kthread.c:436)
[   61.426738][   T72]  ? ret_from_fork (arch/x86/kernel/process.c:158)
[   61.426741][   T72]  ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
[   61.426745][   T72]  _printk (kernel/printk/printk.c:2504)
[   61.426749][   T72]  ? snapshot_read.cold (user.c:?)
[   61.426754][   T72]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   61.426757][   T72]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   61.426761][   T72]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   61.426764][   T72]  ? netdev_notice (net/core/dev.c:13194)
[   61.426769][   T72]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   61.426770][   T72]  ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1))
[   61.426773][   T72]  ? down_write_nested (kernel/locking/rwsem.c:1759)
[   61.426775][   T72]  ? 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)
[   61.426777][   T72]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[   61.426781][   T72]  dev_set_allmulti (net/core/dev_api.c:315)
[   61.426785][   T72]  del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341)
[   61.426792][   T72]  br_dev_delete (net/bridge/br_if.c:387)
[   61.426795][   T72]  br_net_exit_rtnl (net/bridge/br.c:414)
[   61.426799][   T72]  ops_undo_list (net/core/net_namespace.c:181 net/core/net_namespace.c:249)
[   61.426803][   T72]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   61.426806][   T72]  ? netns_install (./include/linux/ns_common.h:26)
[   61.426808][   T72]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   61.426811][   T72]  ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563)
[   61.426816][   T72]  cleanup_net (net/core/net_namespace.c:706)
[   61.426819][   T72]  ? net_passive_dec (./include/linux/llist.h:241)
[   61.426823][   T72]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   61.426825][   T72]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   61.426828][   T72]  process_one_work (kernel/workqueue.c:3387)
[   61.426835][   T72]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[   61.426838][   T72]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   61.426846][   T72]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   61.426850][   T72]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   61.426853][   T72]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   61.426855][   T72]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   61.426858][   T72]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   61.426860][   T72]  kthread (kernel/kthread.c:436)
[   61.426862][   T72]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   61.426866][   T72]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   61.426869][   T72]  ret_from_fork (arch/x86/kernel/process.c:158)
[   61.426871][   T72]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[   61.426875][   T72]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   61.426878][   T72]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   61.426881][   T72]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   62.836263][ T1264] softirqs last disabled at (22592): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   62.836265][ T1264] Preemption disabled at:
| [   62.836266][ T1264] vprintk_emit (kernel/printk/printk.c:2471)
| [   62.836274][ T1264] Tainted: [W]=WARN
[   62.836275][ T1264] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   62.836276][ T1264] Call Trace:
[   62.836278][ T1264]  <TASK>
[   62.836279][ T1264]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   62.836285][ T1264]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   62.836287][ T1264]  __might_resched.cold (kernel/sched/core.c:9234)
[   62.836291][ T1264]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   62.836295][ T1264]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   62.836300][ T1264]  __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))
[   62.836302][ T1264]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   62.836308][ T1264]  ? 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)
[   62.836311][ T1264]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   62.836315][ T1264]  put_chars (drivers/char/virtio_console.c:1176)
[   62.836317][ T1264]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   62.836323][ T1264]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   62.836331][ T1264]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   62.836334][ T1264]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   62.836339][ T1264]  console_emit_next_record (kernel/printk/printk.c:3183)
[   62.836343][ T1264]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   62.836345][ T1264]  ? 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))
[   62.836348][ T1264]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   62.836351][ T1264]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   62.836355][ T1264]  console_flush_one_record (kernel/printk/printk.c:3268)
[   62.836359][ T1264]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   62.836361][ T1264]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   62.836366][ T1264]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   62.836369][ T1264]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   62.836370][ T1264]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   62.836372][ T1264]  ? 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)
[   62.836376][ T1264]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   62.836378][ T1264]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   62.836380][ T1264]  vprintk_emit (kernel/printk/printk.c:2479)
[   62.836383][ T1264]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   62.836386][ T1264]  ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1227 (discriminator 6))
[   62.836391][ T1264]  _printk (kernel/printk/printk.c:2504)
[   62.836395][ T1264]  ? snapshot_read.cold (user.c:?)
[   62.836397][ T1264]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   62.836399][ T1264]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   62.836402][ T1264]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   62.836404][ T1264]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   62.836408][ T1264]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   62.836411][ T1264]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   62.836413][ T1264]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   62.836416][ T1264]  ? netdev_notice (net/core/dev.c:13194)
[   62.836418][ T1264]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   62.836421][ T1264]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   62.836424][ T1264]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   62.836427][ T1264]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   62.836429][ T1264]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   62.836431][ T1264]  ? register_netdev (net/core/dev.c:11618)
[   62.836433][ T1264]  ? 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))
[   62.836438][ T1264]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   62.836441][ T1264]  ? __kernel_text_address (kernel/extable.c:79)
[   62.836443][ T1264]  ? write_profile (profile.c:?)
[   62.836447][ T1264]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   62.836453][ T1264]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   62.836456][ T1264]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   62.836458][ T1264]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   62.836460][ T1264]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   62.836461][ T1264]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   62.836465][ T1264]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   62.836467][ T1264]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   62.836468][ T1264]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   62.836471][ T1264]  ? kasan_save_stack (mm/kasan/common.c:58)
[   62.836473][ T1264]  ? kasan_save_stack (mm/kasan/common.c:57)
[   62.836474][ T1264]  ? kasan_save_track (mm/kasan/common.c:78)
[   62.836475][ T1264]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   62.836477][ T1264]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   62.836479][ T1264]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   62.836482][ T1264]  ? ___sys_sendmsg (net/socket.c:2758)
[   62.836486][ T1264]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   62.836487][ T1264]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   62.836490][ T1264]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   62.836492][ T1264]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   62.836493][ T1264]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   62.836494][ T1264]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   62.836496][ T1264]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   62.836498][ T1264]  ? __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)
[   62.836500][ T1264]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   62.836501][ T1264]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   62.836505][ T1264]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   62.836506][ T1264]  ? nla_get_range_signed (lib/nlattr.c:270)
[   62.836511][ T1264]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   62.836513][ T1264]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   62.836518][ T1264]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   62.836523][ T1264]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   62.836525][ T1264]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   62.836530][ T1264]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   62.836532][ T1264]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   62.836534][ T1264]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   62.836535][ T1264]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   62.836539][ T1264]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   62.836541][ T1264]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   62.836544][ T1264]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   62.836545][ T1264]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   62.836550][ T1264]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   62.836552][ T1264]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   62.836555][ T1264]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   62.836558][ T1264]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   62.836561][ T1264]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   62.836567][ T1264]  ? 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))
[   62.836569][ T1264]  ? 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))
[   62.836577][ T1264]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   62.836581][ T1264]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   62.836584][ T1264]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   62.836588][ T1264]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   62.836592][ T1264]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   62.836596][ T1264]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   62.836597][ T1264]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   62.836603][ T1264]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   62.836605][ T1264]  ____sys_sendmsg (net/socket.c:2713)
[   62.836608][ T1264]  ? copy_msghdr_from_user (net/socket.c:2650)
[   62.836610][ T1264]  ? sock_write_iter (net/socket.c:1269)
[   62.836611][ T1264]  ? move_addr_to_kernel (net/socket.c:258)
[   62.836619][ T1264]  ___sys_sendmsg (net/socket.c:2767)
[   62.836621][ T1264]  ? copy_msghdr_from_user (net/socket.c:2619)
[   62.836637][ T1264]  __sys_sendmsg (net/socket.c:2799)
[   62.836640][ T1264]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   62.836647][ T1264]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   62.836650][ T1264]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   62.836653][ T1264]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   62.836655][ T1264]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   62.836658][ T1264] RIP: 0033:0x7f6bbce4054e
[   62.836661][ T1264] 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
[   62.836663][ T1264] RSP: 002b:00007ffe120046d0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   62.836666][ T1264] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007f6bbce4054e
[   62.836667][ T1264] RDX: 0000000000000000 RSI: 00007ffe12004780 RDI: 0000000000000005
[   62.836668][ T1264] RBP: 00007ffe120046e0 R08: 0000000000000000 R09: 0000000000000000
[   62.836669][ T1264] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91c043
[   62.836669][ T1264] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffe12004e40
| [   63.871423][ T1316] softirqs last disabled at (24010): inet6_fill_ifla6_attrs (net/ipv6/addrconf.c:5883)
| [   63.871425][ T1316] Preemption disabled at:
| [   63.871426][ T1316] vprintk_emit (kernel/printk/printk.c:2471)
| [   63.871434][ T1316] Tainted: [W]=WARN
[   63.871435][ T1316] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   63.871437][ T1316] Call Trace:
[   63.871438][ T1316]  <TASK>
[   63.871440][ T1316]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   63.871446][ T1316]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   63.871448][ T1316]  __might_resched.cold (kernel/sched/core.c:9234)
[   63.871452][ T1316]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   63.871456][ T1316]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   63.871461][ T1316]  __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))
[   63.871463][ T1316]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   63.871469][ T1316]  ? 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)
[   63.871472][ T1316]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   63.871475][ T1316]  put_chars (drivers/char/virtio_console.c:1176)
[   63.871478][ T1316]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   63.871479][ T1316]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   63.871483][ T1316]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   63.871485][ T1316]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   63.871490][ T1316]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   63.871494][ T1316]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   63.871499][ T1316]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   63.871502][ T1316]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   63.871507][ T1316]  console_emit_next_record (kernel/printk/printk.c:3183)
[   63.871511][ T1316]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   63.871513][ T1316]  ? 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))
[   63.871516][ T1316]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   63.871518][ T1316]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   63.871522][ T1316]  console_flush_one_record (kernel/printk/printk.c:3268)
[   63.871526][ T1316]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   63.871527][ T1316]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   63.871533][ T1316]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   63.871535][ T1316]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   63.871537][ T1316]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   63.871539][ T1316]  ? 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)
[   63.871542][ T1316]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   63.871544][ T1316]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   63.871547][ T1316]  vprintk_emit (kernel/printk/printk.c:2479)
[   63.871550][ T1316]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   63.871552][ T1316]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   63.871555][ T1316]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   63.871558][ T1316]  _printk (kernel/printk/printk.c:2504)
[   63.871562][ T1316]  ? snapshot_read.cold (user.c:?)
[   63.871565][ T1316]  ? br_multicast_flood (??:?)
[   63.871568][ T1316]  ? rtnl_newlink_create (net/core/rtnetlink.c:3982 (discriminator 1))
[   63.871570][ T1316]  ? __rtnl_newlink (net/core/rtnetlink.c:4098)
[   63.871571][ T1316]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   63.871578][ T1316]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   63.871582][ T1316]  br_init_port (net/bridge/br_stp_if.c:39)
[   63.871585][ T1316]  new_nbp (net/bridge/br_if.c:449)
[   63.871589][ T1316]  br_add_if (net/bridge/br_if.c:592)
[   63.871591][ T1316]  ? netif_set_allmulti (./include/net/netdev_lock.h:33 ./include/net/netdev_lock.h:69 net/core/dev.c:9712)
[   63.871598][ T1316]  do_set_master (net/core/rtnetlink.c:3071)
[   63.871602][ T1316]  rtnl_newlink_create (net/core/rtnetlink.c:3982 (discriminator 1))
[   63.871605][ T1316]  ? rtnl_create_link (net/core/rtnetlink.c:3756)
[   63.871607][ T1316]  ? __dev_get_by_name (net/core/dev.c:905)
[   63.871609][ T1316]  ? rtnl_dev_get (net/core/rtnetlink.c:3538)
[   63.871618][ T1316]  __rtnl_newlink (net/core/rtnetlink.c:4098)
[   63.871624][ T1316]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   63.871629][ T1316]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   63.871631][ T1316]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   63.871638][ T1316]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   63.871641][ T1316]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   63.871643][ T1316]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   63.871646][ T1316]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   63.871648][ T1316]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   63.871652][ T1316]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   63.871654][ T1316]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   63.871658][ T1316]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   63.871661][ T1316]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   63.871664][ T1316]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   63.871670][ T1316]  ? 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))
[   63.871673][ T1316]  ? 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))
[   63.871677][ T1316]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   63.871681][ T1316]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   63.871686][ T1316]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   63.871690][ T1316]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   63.871694][ T1316]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   63.871695][ T1316]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   63.871701][ T1316]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   63.871704][ T1316]  ____sys_sendmsg (net/socket.c:2713)
[   63.871707][ T1316]  ? copy_msghdr_from_user (net/socket.c:2650)
[   63.871709][ T1316]  ? sock_write_iter (net/socket.c:1269)
[   63.871711][ T1316]  ? move_addr_to_kernel (net/socket.c:258)
[   63.871715][ T1316]  ? do_fault_around (./include/linux/rcupdate.h:882 mm/memory.c:5961)
[   63.871717][ T1316]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   63.871721][ T1316]  ___sys_sendmsg (net/socket.c:2767)
[   63.871723][ T1316]  ? do_pte_missing (mm/memory.c:5991 mm/memory.c:6134 mm/memory.c:4700)
[   63.871725][ T1316]  ? copy_msghdr_from_user (net/socket.c:2619)
[   63.871727][ T1316]  ? rcu_read_unlock (./include/linux/rcupdate.h:878 (discriminator 6))
[   63.871742][ T1316]  __sys_sendmsg (net/socket.c:2799)
[   63.871745][ T1316]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   63.871750][ T1316]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   63.871752][ T1316]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   63.871755][ T1316]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   63.871759][ T1316]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   63.871762][ T1316]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   63.871764][ T1316] RIP: 0033:0x7f1d2b88954e
[   63.871768][ T1316] 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
[   63.871769][ T1316] RSP: 002b:00007fff9e8faef0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   63.871772][ T1316] RAX: ffffffffffffffda RBX: 00007fff9e8fb6b8 RCX: 00007f1d2b88954e
[   63.871773][ T1316] RDX: 0000000000000000 RSI: 00007fff9e8fafa0 RDI: 0000000000000005
[   63.871774][ T1316] RBP: 00007fff9e8faf00 R08: 0000000000000000 R09: 0000000000000000
[   63.871775][ T1316] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91c044
[   63.871776][ T1316] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fff9e8fb670
| [   69.272726][   T36] softirqs last disabled at (297222): br_port_carrier_check (./include/linux/spinlock.h:353 net/bridge/br_if.c:87)
| [   69.272728][   T36] Preemption disabled at:
| [   69.272729][   T36] 0x0
| [   69.272739][   T36] Tainted: [W]=WARN
[   69.272740][   T36] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   69.272741][   T36] Workqueue: events_unbound linkwatch_event
[   69.272745][   T36] Call Trace:
[   69.272746][   T36]  <TASK>
[   69.272747][   T36]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   69.272754][   T36]  __might_resched.cold (kernel/sched/core.c:9234)
[   69.272759][   T36]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   69.272763][   T36]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   69.272767][   T36]  __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))
[   69.272769][   T36]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   69.272776][   T36]  ? 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)
[   69.272778][   T36]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   69.272782][   T36]  put_chars (drivers/char/virtio_console.c:1176)
[   69.272785][   T36]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   69.272788][   T36]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   69.272791][   T36]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   69.272796][   T36]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   69.272800][   T36]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   69.272802][   T36]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   69.272806][   T36]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   69.272810][   T36]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   69.272813][   T36]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   69.272817][   T36]  console_emit_next_record (kernel/printk/printk.c:3183)
[   69.272821][   T36]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   69.272823][   T36]  ? 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))
[   69.272826][   T36]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   69.272828][   T36]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   69.272832][   T36]  console_flush_one_record (kernel/printk/printk.c:3268)
[   69.272837][   T36]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   69.272838][   T36]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   69.272844][   T36]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   69.272847][   T36]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   69.272849][   T36]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   69.272850][   T36]  ? 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)
[   69.272854][   T36]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   69.272856][   T36]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   69.272859][   T36]  vprintk_emit (kernel/printk/printk.c:2479)
[   69.272862][   T36]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   69.272863][   T36]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   69.272866][   T36]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   69.272868][   T36]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   69.272872][   T36]  _printk (kernel/printk/printk.c:2504)
[   69.272875][   T36]  ? snapshot_read.cold (user.c:?)
[   69.272878][   T36]  ? add_chain_block (kernel/locking/lockdep.c:3413 kernel/locking/lockdep.c:3454)
[   69.272885][   T36]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   69.272889][   T36]  br_stp_disable_port (net/bridge/br_stp_if.c:106)
[   69.272893][   T36]  br_port_carrier_check (net/bridge/br_if.c:95)
[   69.272896][   T36]  br_device_event (net/bridge/br.c:101)
[   69.272900][   T36]  ? packet_sendmsg_spkt (af_packet.c:?)
[   69.272906][   T36]  notifier_call_chain (kernel/notifier.c:85)
[   69.272912][   T36]  netif_state_change (net/core/dev.c:1625)
[   69.272915][   T36]  ? dev_deactivate (net/sched/sch_generic.c:1419)
[   69.272919][   T36]  ? call_netdevice_notifiers_info (./include/net/net_namespace.h:422 (discriminator 7))
[   69.272923][   T36]  ? rfc2863_policy (net/core/link_watch.c:52 net/core/link_watch.c:76)
[   69.272926][   T36]  ? linkwatch_do_dev (net/core/link_watch.c:184 net/core/link_watch.c:166)
[   69.272928][   T36]  __linkwatch_run_queue (net/core/link_watch.c:240)
[   69.272931][   T36]  ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   69.272933][   T36]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   69.272938][   T36]  linkwatch_event (net/core/link_watch.c:314 (discriminator 11))
[   69.272940][   T36]  ? __linkwatch_run_queue (net/core/link_watch.c:213)
[   69.272943][   T36]  process_one_work (kernel/workqueue.c:3387)
[   69.272950][   T36]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[   69.272953][   T36]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   69.272961][   T36]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   69.272968][   T36]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   69.272970][   T36]  kthread (kernel/kthread.c:436)
[   69.272972][   T36]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   69.272976][   T36]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   69.272979][   T36]  ret_from_fork (arch/x86/kernel/process.c:158)
[   69.272983][   T36]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[   69.272986][   T36]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   69.272990][   T36]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   69.272993][   T36]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   78.800673][    C3] softirqs last disabled at (7257): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   78.800675][    C3] Preemption disabled at:
| [   78.800675][    C3] 0x0
| [   78.800685][    C3] Tainted: [W]=WARN
[   78.800686][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   78.800688][    C3] Call Trace:
[   78.800689][    C3]  <IRQ>
[   78.800690][    C3]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   78.800696][    C3]  __might_resched.cold (kernel/sched/core.c:9234)
[   78.800700][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   78.800703][    C3]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   78.800706][    C3]  ? __asan_memcpy (mm/kasan/shadow.c:106 (discriminator 1))
[   78.800709][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   78.800710][    C3]  __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))
[   78.800713][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   78.800715][    C3]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   78.800720][    C3]  ? 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)
[   78.800722][    C3]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   78.800724][    C3]  put_chars (drivers/char/virtio_console.c:1176)
[   78.800726][    C3]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   78.800727][    C3]  ? console_prepend_replay (kernel/printk/printk.c:3005)
[   78.800731][    C3]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   78.800735][    C3]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   78.800737][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   78.800738][    C3]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   78.800741][    C3]  console_emit_next_record (kernel/printk/printk.c:3183)
[   78.800744][    C3]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   78.800746][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   78.800746][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   78.800747][    C3]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   78.800749][    C3]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   78.800751][    C3]  console_flush_one_record (kernel/printk/printk.c:3268)
[   78.800753][    C3]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   78.800756][    C3]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   78.800758][    C3]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   78.800759][    C3]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   78.800761][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   78.800762][    C3]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   78.800763][    C3]  ? 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)
[   78.800765][    C3]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   78.800767][    C3]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   78.800769][    C3]  vprintk_emit (kernel/printk/printk.c:2479)
[   78.800770][    C3]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   78.800771][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   78.800773][    C3]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   78.800775][    C3]  _printk (kernel/printk/printk.c:2504)
[   78.800778][    C3]  ? snapshot_read.cold (user.c:?)
[   78.800779][    C3]  ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26)
[   78.800782][    C3]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   78.800784][    C3]  ? nbcon_cpu_emergency_enter (./include/linux/instrumented.h:112 ./include/linux/atomic/atomic-instrumented.h:435 kernel/printk/nbcon.c:1723)
[   78.800786][    C3]  print_irq_inversion_bug.part.0 (kernel/locking/lockdep.c:4097 (discriminator 1))
[   78.800788][    C3]  mark_lock_irq (kernel/locking/lockdep.c:4095 kernel/locking/lockdep.c:4174 kernel/locking/lockdep.c:4310)
[   78.800791][    C3]  mark_lock (kernel/locking/lockdep.c:4769)
[   78.800793][    C3]  mark_usage (kernel/locking/lockdep.c:4658)
[   78.800795][    C3]  __lock_acquire (kernel/locking/lockdep.c:5208)
[   78.800797][    C3]  lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   78.800799][    C3]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88)
[   78.800802][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   78.800803][    C3]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   78.800805][    C3]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54)
[   78.800806][    C3]  _raw_spin_lock (./include/linux/spinlock_api_smp.h:190 (discriminator 1) kernel/locking/spinlock.c:173 (discriminator 1))
[   78.800807][    C3]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88)
[   78.800808][    C3]  br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88)
[   78.800810][    C3]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54)
[   78.800811][    C3]  call_timer_fn (kernel/time/timer.c:1748)
[   78.800815][    C3]  ? detach_if_pending (./include/linux/list.h:1159)
[   78.800816][    C3]  ? debug_object_active_state (lib/debugobjects.c:1122)
[   78.800819][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   78.800821][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   78.800823][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   78.800825][    C3]  __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2374)
[   78.800827][    C3]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54)
[   78.800828][    C3]  ? __bpf_trace_itimer_expire (./include/trace/events/timer.h:407)
[   78.800830][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   78.800833][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   78.800835][    C3]  run_timer_softirq (kernel/time/timer.c:2386 kernel/time/timer.c:2395 kernel/time/timer.c:2403)
[   78.800837][    C3]  ? __run_timers (./include/trace/events/timer.h:138 (discriminator 19))
[   78.800839][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   78.800840][    C3]  handle_softirqs (kernel/softirq.c:645)
[   78.800842][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   78.800844][    C3]  ? _local_bh_enable (kernel/softirq.c:428 (discriminator 1))
[   78.800846][    C3]  __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
[   78.800848][    C3]  irq_exit_rcu (kernel/softirq.c:784)
[   78.800849][    C3]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1062 (discriminator 37) arch/x86/kernel/apic/apic.c:1062 (discriminator 37))
[   78.800851][    C3]  </IRQ>
[   78.800852][    C3]  <TASK>
[   78.800853][    C3]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:674)
[   78.800855][    C3] RIP: 0010:_raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:210 (discriminator 12) kernel/locking/spinlock.c:221 (discriminator 12))
[   78.800857][    C3] Code: f5 53 48 8b 74 24 10 48 89 fb 48 83 c7 18 e8 41 80 78 fd 48 89 df e8 49 d6 78 fd f7 c5 00 02 00 00 75 1f 9c 58 f6 c4 02 75 2f <bf> 01 00 00 00 e8 d0 9e 6a fd 65 48 83 3d af ab 65 02 00 74 12 5b
All code
========
   0:	f5                   	cmc
   1:	53                   	push   %rbx
   2:	48 8b 74 24 10       	mov    0x10(%rsp),%rsi
   7:	48 89 fb             	mov    %rdi,%rbx
   a:	48 83 c7 18          	add    $0x18,%rdi
   e:	e8 41 80 78 fd       	call   0xfffffffffd788054
  13:	48 89 df             	mov    %rbx,%rdi
  16:	e8 49 d6 78 fd       	call   0xfffffffffd78d664
  1b:	f7 c5 00 02 00 00    	test   $0x200,%ebp
  21:	75 1f                	jne    0x42
  23:	9c                   	pushf
  24:	58                   	pop    %rax
  25:	f6 c4 02             	test   $0x2,%ah
  28:	75 2f                	jne    0x59
  2a:*	bf 01 00 00 00       	mov    $0x1,%edi		<-- trapping instruction
  2f:	e8 d0 9e 6a fd       	call   0xfffffffffd6a9f04
  34:	65 48 83 3d af ab 65 	cmpq   $0x0,%gs:0x265abaf(%rip)        # 0x265abec
  3b:	02 00 
  3d:	74 12                	je     0x51
  3f:	5b                   	pop    %rbx

Code starting with the faulting instruction
===========================================
   0:	bf 01 00 00 00       	mov    $0x1,%edi
   5:	e8 d0 9e 6a fd       	call   0xfffffffffd6a9eda
   a:	65 48 83 3d af ab 65 	cmpq   $0x0,%gs:0x265abaf(%rip)        # 0x265abc2
  11:	02 00 
  13:	74 12                	je     0x27
  15:	5b                   	pop    %rbx
[   78.800859][    C3] RSP: 0018:ffa000000327f4a8 EFLAGS: 00000246
[   78.800862][    C3] RAX: 0000000000000096 RBX: ff11000001041440 RCX: ffffffff8dde1483
[   78.800863][    C3] RDX: ff11000009504740 RSI: ffffffff8e711011 RDI: ffffffff8e0949e0
[   78.800864][    C3] RBP: 0000000000000246 R08: 0000000000000000 R09: 0000000000000000
[   78.800865][    C3] R10: 0000000000000003 R11: 0000000000000001 R12: ff11000013e7ef68
[   78.800866][    C3] R13: 0000000000000000 R14: ffa000000327f4f0 R15: ff1100000c1a7d98
[   78.800867][    C3]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:210 (discriminator 6) kernel/locking/spinlock.c:221 (discriminator 6))
[   78.800869][    C3]  qlist_free_all (mm/kasan/quarantine.c:163 (discriminator 2) mm/kasan/quarantine.c:179 (discriminator 2))
[   78.800872][    C3]  kasan_quarantine_reduce (mm/kasan/quarantine.c:286)
[   78.800874][    C3]  __kasan_slab_alloc (mm/kasan/common.c:350)
[   78.800876][    C3]  kmem_cache_alloc_noprof (./include/linux/kasan.h:253 mm/slub.c:4683 mm/slub.c:4996 mm/slub.c:5010)
[   78.800877][    C3]  ? fuse_request_alloc (fs/fuse/dev.c:48 (discriminator 7))
[   78.800880][    C3]  fuse_request_alloc (fs/fuse/dev.c:48 (discriminator 7))
[   78.800882][    C3]  fuse_get_req (fs/fuse/dev.c:133)
[   78.800884][    C3]  ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178)
[   78.800885][    C3]  ? fuse_dev_open (fs/fuse/dev.c:1687)
[   78.800887][    C3]  ? from_kgid (kernel/user_namespace.c:406 kernel/user_namespace.c:512)
[   78.800890][    C3]  ? uid_m_show (kernel/user_namespace.c:621 (discriminator 1))
[   78.800892][    C3]  fuse_chan_send (fs/fuse/dev.c:833)
[   78.800894][    C3]  fuse_readlink_folio (fs/fuse/fuse_i.h:1012 fs/fuse/dir.c:1847)
[   78.800896][    C3]  ? fuse_invalidate_attr_mask (fs/fuse/dir.c:314)
[   78.800897][    C3]  ? __alloc_pages_slowpath.constprop.0 (mm/page_alloc.c:4857 (discriminator 1))
[   78.800900][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   78.800903][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   78.800906][    C3]  fuse_get_link (fs/fuse/dir.c:1886)
[   78.800907][    C3]  pick_link (fs/namei.c:2068)
[   78.800910][    C3]  ? fuse_symlink_read_folio (./include/linux/page-flags.h:354)
[   78.800912][    C3]  step_into_slowpath (fs/namei.c:2127)
[   78.800914][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   78.800915][    C3]  ? pick_link (fs/namei.c:2066)
[   78.800917][    C3]  ? lookup_fast (fs/namei.c:1035 fs/namei.c:1031 fs/namei.c:1868)
[   78.800919][    C3]  link_path_walk (fs/namei.c:2152 fs/namei.c:2288 fs/namei.c:2656)
[   78.800921][    C3]  ? path_init (fs/namei.c:2720)
[   78.800923][    C3]  ? vfs_rename (./include/linux/list.h:457 (discriminator 5))
[   78.800925][    C3]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   78.800926][    C3]  ? init_file (./include/linux/instrumented.h:97 ./include/linux/atomic/atomic-instrumented.h:3223 ./include/linux/file_ref.h:61 fs/file_table.c:229)
[   78.800929][    C3]  path_openat (fs/namei.c:4996 (discriminator 1))
[   78.800931][    C3]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   78.800933][    C3]  ? kernel_tmpfile_open (fs/namei.c:4942)
[   78.800934][    C3]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   78.800936][    C3]  do_file_open (fs/namei.c:5029)
[   78.800937][    C3]  ? path_openat (./include/linux/mount.h:68 (discriminator 3))
[   78.800938][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   78.800942][    C3]  ? _raw_spin_unlock (./include/linux/spinlock_api_smp.h:201 (discriminator 1) kernel/locking/spinlock.c:213 (discriminator 1))
[   78.800943][    C3]  ? alloc_fd (./include/linux/spinlock.h:401 fs/file.c:610)
[   78.800946][    C3]  do_sys_openat2 (fs/open.c:1417 (discriminator 5))
[   78.800948][    C3]  ? build_open_flags (fs/open.c:1319 (discriminator 3))
[   78.800949][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   78.800950][    C3]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   78.800953][    C3]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   78.800955][    C3]  __x64_sys_openat (fs/open.c:1423 fs/open.c:1439 fs/open.c:1434 fs/open.c:1434)
[   78.800956][    C3]  ? fput_close_sync (fs/file_table.c:617)
[   78.800958][    C3]  ? __ia32_sys_open (fs/open.c:1427)
[   78.800960][    C3]  ? fpregs_restore_userregs (./include/linux/instrumented.h:97 ./include/asm-generic/bitops/instrumented-atomic.h:41 ./include/linux/thread_info.h:109 arch/x86/kernel/fpu/context.h:79)
[   78.800961][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   78.800963][    C3]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   78.800964][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   78.800967][    C3]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   78.800968][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   78.800969][    C3] RIP: 0033:0x7f6f400496e5
[   78.800971][    C3] Code: 48 89 e5 48 89 55 e0 41 83 e2 40 75 28 89 f2 f7 d2 81 e2 00 00 41 00 74 1c 89 f2 bf 9c ff ff ff 48 89 c6 b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 77 23 5d c3 90 48 8d 4d 10 c7 45 b8 10 00 00 00
All code
========
   0:	48 89 e5             	mov    %rsp,%rbp
   3:	48 89 55 e0          	mov    %rdx,-0x20(%rbp)
   7:	41 83 e2 40          	and    $0x40,%r10d
   b:	75 28                	jne    0x35
   d:	89 f2                	mov    %esi,%edx
   f:	f7 d2                	not    %edx
  11:	81 e2 00 00 41 00    	and    $0x410000,%edx
  17:	74 1c                	je     0x35
  19:	89 f2                	mov    %esi,%edx
  1b:	bf 9c ff ff ff       	mov    $0xffffff9c,%edi
  20:	48 89 c6             	mov    %rax,%rsi
  23:	b8 01 01 00 00       	mov    $0x101,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 23                	ja     0x55
  32:	5d                   	pop    %rbp
  33:	c3                   	ret
  34:	90                   	nop
  35:	48 8d 4d 10          	lea    0x10(%rbp),%rcx
  39:	c7 45 b8 10 00 00 00 	movl   $0x10,-0x48(%rbp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 23                	ja     0x2b
   8:	5d                   	pop    %rbp
   9:	c3                   	ret
   a:	90                   	nop
   b:	48 8d 4d 10          	lea    0x10(%rbp),%rcx
   f:	c7 45 b8 10 00 00 00 	movl   $0x10,-0x48(%rbp)
[   78.800972][    C3] RSP: 002b:00007ffc7a5f6af0 EFLAGS: 00000206 ORIG_RAX: 0000000000000101
[   78.800973][    C3] RAX: ffffffffffffffda RBX: 00007ffc7a5f6d80 RCX: 00007f6f400496e5
[   78.800974][    C3] RDX: 0000000000080000 RSI: 00007ffc7a5f6b70 RDI: 00000000ffffff9c
[   78.800975][    C3] RBP: 00007ffc7a5f6af0 R08: 00007ffc7a5f6d67 R09: 0000000000000000
[   78.800976][    C3] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffc7a5f6b70
[   78.800977][    C3] R13: 00007ffc7a5f6b70 R14: 00007f6f4001b000 R15: 0000000000000000
| [   78.882003][    C3]
| [   78.882079][    C3]
| [   78.882079][    C3] stack backtrace:
| [   78.882387][    C3] Tainted: [W]=WARN
[   78.882388][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   78.882389][    C3] Call Trace:
[   78.882390][    C3]  <IRQ>
[   78.882391][    C3]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   78.882396][    C3]  print_irq_inversion_bug.part.0.cold (kernel/locking/lockdep.c:4141)
[   78.882399][    C3]  mark_lock_irq (kernel/locking/lockdep.c:4095 kernel/locking/lockdep.c:4174 kernel/locking/lockdep.c:4310)
[   78.882402][    C3]  mark_lock (kernel/locking/lockdep.c:4769)
[   78.882404][    C3]  mark_usage (kernel/locking/lockdep.c:4658)
[   78.882406][    C3]  __lock_acquire (kernel/locking/lockdep.c:5208)
[   78.882408][    C3]  lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   78.882410][    C3]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88)
[   78.882411][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   78.882413][    C3]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   78.882415][    C3]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54)
[   78.882416][    C3]  _raw_spin_lock (./include/linux/spinlock_api_smp.h:190 (discriminator 1) kernel/locking/spinlock.c:173 (discriminator 1))
[   78.882418][    C3]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88)
[   78.882419][    C3]  br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88)
[   78.882420][    C3]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54)
[   78.882422][    C3]  call_timer_fn (kernel/time/timer.c:1748)
[   78.882424][    C3]  ? detach_if_pending (./include/linux/list.h:1159)
[   78.882426][    C3]  ? debug_object_active_state (lib/debugobjects.c:1122)
[   78.882429][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   78.882431][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   78.882433][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   78.882435][    C3]  __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2374)
[   78.882437][    C3]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54)
[   78.882439][    C3]  ? __bpf_trace_itimer_expire (./include/trace/events/timer.h:407)
[   78.882440][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   78.882443][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   78.882446][    C3]  run_timer_softirq (kernel/time/timer.c:2386 kernel/time/timer.c:2395 kernel/time/timer.c:2403)
[   78.882448][    C3]  ? __run_timers (./include/trace/events/timer.h:138 (discriminator 19))
[   78.882450][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   78.882451][    C3]  handle_softirqs (kernel/softirq.c:645)
[   78.882453][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   78.882454][    C3]  ? _local_bh_enable (kernel/softirq.c:428 (discriminator 1))
[   78.882457][    C3]  __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
[   78.882458][    C3]  irq_exit_rcu (kernel/softirq.c:784)
[   78.882459][    C3]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1062 (discriminator 37) arch/x86/kernel/apic/apic.c:1062 (discriminator 37))
[   78.882461][    C3]  </IRQ>
[   78.882461][    C3]  <TASK>
[   78.882462][    C3]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:674)
[   78.882464][    C3] RIP: 0010:_raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:210 (discriminator 12) kernel/locking/spinlock.c:221 (discriminator 12))
[   78.882466][    C3] Code: f5 53 48 8b 74 24 10 48 89 fb 48 83 c7 18 e8 41 80 78 fd 48 89 df e8 49 d6 78 fd f7 c5 00 02 00 00 75 1f 9c 58 f6 c4 02 75 2f <bf> 01 00 00 00 e8 d0 9e 6a fd 65 48 83 3d af ab 65 02 00 74 12 5b
All code
========
   0:	f5                   	cmc
   1:	53                   	push   %rbx
   2:	48 8b 74 24 10       	mov    0x10(%rsp),%rsi
   7:	48 89 fb             	mov    %rdi,%rbx
   a:	48 83 c7 18          	add    $0x18,%rdi
   e:	e8 41 80 78 fd       	call   0xfffffffffd788054
  13:	48 89 df             	mov    %rbx,%rdi
  16:	e8 49 d6 78 fd       	call   0xfffffffffd78d664
  1b:	f7 c5 00 02 00 00    	test   $0x200,%ebp
  21:	75 1f                	jne    0x42
  23:	9c                   	pushf
  24:	58                   	pop    %rax
  25:	f6 c4 02             	test   $0x2,%ah
  28:	75 2f                	jne    0x59
  2a:*	bf 01 00 00 00       	mov    $0x1,%edi		<-- trapping instruction
  2f:	e8 d0 9e 6a fd       	call   0xfffffffffd6a9f04
  34:	65 48 83 3d af ab 65 	cmpq   $0x0,%gs:0x265abaf(%rip)        # 0x265abec
  3b:	02 00 
  3d:	74 12                	je     0x51
  3f:	5b                   	pop    %rbx

Code starting with the faulting instruction
===========================================
   0:	bf 01 00 00 00       	mov    $0x1,%edi
   5:	e8 d0 9e 6a fd       	call   0xfffffffffd6a9eda
   a:	65 48 83 3d af ab 65 	cmpq   $0x0,%gs:0x265abaf(%rip)        # 0x265abc2
  11:	02 00 
  13:	74 12                	je     0x27
  15:	5b                   	pop    %rbx
[   78.882467][    C3] RSP: 0018:ffa000000327f4a8 EFLAGS: 00000246
[   78.882469][    C3] RAX: 0000000000000096 RBX: ff11000001041440 RCX: ffffffff8dde1483
[   78.882470][    C3] RDX: ff11000009504740 RSI: ffffffff8e711011 RDI: ffffffff8e0949e0
[   78.882471][    C3] RBP: 0000000000000246 R08: 0000000000000000 R09: 0000000000000000
[   78.882472][    C3] R10: 0000000000000003 R11: 0000000000000001 R12: ff11000013e7ef68
[   78.882473][    C3] R13: 0000000000000000 R14: ffa000000327f4f0 R15: ff1100000c1a7d98
[   78.882474][    C3]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:210 (discriminator 6) kernel/locking/spinlock.c:221 (discriminator 6))
[   78.882477][    C3]  qlist_free_all (mm/kasan/quarantine.c:163 (discriminator 2) mm/kasan/quarantine.c:179 (discriminator 2))
[   78.882479][    C3]  kasan_quarantine_reduce (mm/kasan/quarantine.c:286)
[   78.882480][    C3]  __kasan_slab_alloc (mm/kasan/common.c:350)
[   78.882482][    C3]  kmem_cache_alloc_noprof (./include/linux/kasan.h:253 mm/slub.c:4683 mm/slub.c:4996 mm/slub.c:5010)
[   78.882483][    C3]  ? fuse_request_alloc (fs/fuse/dev.c:48 (discriminator 7))
[   78.882485][    C3]  fuse_request_alloc (fs/fuse/dev.c:48 (discriminator 7))
[   78.882487][    C3]  fuse_get_req (fs/fuse/dev.c:133)
[   78.882489][    C3]  ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178)
[   78.882490][    C3]  ? fuse_dev_open (fs/fuse/dev.c:1687)
[   78.882492][    C3]  ? from_kgid (kernel/user_namespace.c:406 kernel/user_namespace.c:512)
[   78.882494][    C3]  ? uid_m_show (kernel/user_namespace.c:621 (discriminator 1))
[   78.882497][    C3]  fuse_chan_send (fs/fuse/dev.c:833)
[   78.882499][    C3]  fuse_readlink_folio (fs/fuse/fuse_i.h:1012 fs/fuse/dir.c:1847)
[   78.882500][    C3]  ? fuse_invalidate_attr_mask (fs/fuse/dir.c:314)
[   78.882502][    C3]  ? __alloc_pages_slowpath.constprop.0 (mm/page_alloc.c:4857 (discriminator 1))
[   78.882504][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   78.882508][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   78.882510][    C3]  fuse_get_link (fs/fuse/dir.c:1886)
[   78.882511][    C3]  pick_link (fs/namei.c:2068)
[   78.882513][    C3]  ? fuse_symlink_read_folio (./include/linux/page-flags.h:354)
[   78.882515][    C3]  step_into_slowpath (fs/namei.c:2127)
[   78.882517][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   78.882518][    C3]  ? pick_link (fs/namei.c:2066)
[   78.882520][    C3]  ? lookup_fast (fs/namei.c:1035 fs/namei.c:1031 fs/namei.c:1868)
[   78.882522][    C3]  link_path_walk (fs/namei.c:2152 fs/namei.c:2288 fs/namei.c:2656)
[   78.882524][    C3]  ? path_init (fs/namei.c:2720)
[   78.882526][    C3]  ? vfs_rename (./include/linux/list.h:457 (discriminator 5))
[   78.882528][    C3]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   78.882529][    C3]  ? init_file (./include/linux/instrumented.h:97 ./include/linux/atomic/atomic-instrumented.h:3223 ./include/linux/file_ref.h:61 fs/file_table.c:229)
[   78.882532][    C3]  path_openat (fs/namei.c:4996 (discriminator 1))
[   78.882533][    C3]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   78.882535][    C3]  ? kernel_tmpfile_open (fs/namei.c:4942)
[   78.882537][    C3]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   78.882539][    C3]  do_file_open (fs/namei.c:5029)
[   78.882540][    C3]  ? path_openat (./include/linux/mount.h:68 (discriminator 3))
[   78.882541][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   78.882544][    C3]  ? _raw_spin_unlock (./include/linux/spinlock_api_smp.h:201 (discriminator 1) kernel/locking/spinlock.c:213 (discriminator 1))
[   78.882546][    C3]  ? alloc_fd (./include/linux/spinlock.h:401 fs/file.c:610)
[   78.882549][    C3]  do_sys_openat2 (fs/open.c:1417 (discriminator 5))
[   78.882550][    C3]  ? build_open_flags (fs/open.c:1319 (discriminator 3))
[   78.882551][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   78.882553][    C3]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   78.882555][    C3]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   78.882557][    C3]  __x64_sys_openat (fs/open.c:1423 fs/open.c:1439 fs/open.c:1434 fs/open.c:1434)
[   78.882558][    C3]  ? fput_close_sync (fs/file_table.c:617)
[   78.882560][    C3]  ? __ia32_sys_open (fs/open.c:1427)
[   78.882561][    C3]  ? fpregs_restore_userregs (./include/linux/instrumented.h:97 ./include/asm-generic/bitops/instrumented-atomic.h:41 ./include/linux/thread_info.h:109 arch/x86/kernel/fpu/context.h:79)
[   78.882564][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   78.882565][    C3]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   78.882566][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   78.882568][    C3]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   78.882570][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   78.882571][    C3] RIP: 0033:0x7f6f400496e5
[   78.882573][    C3] Code: 48 89 e5 48 89 55 e0 41 83 e2 40 75 28 89 f2 f7 d2 81 e2 00 00 41 00 74 1c 89 f2 bf 9c ff ff ff 48 89 c6 b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 77 23 5d c3 90 48 8d 4d 10 c7 45 b8 10 00 00 00
All code
========
   0:	48 89 e5             	mov    %rsp,%rbp
   3:	48 89 55 e0          	mov    %rdx,-0x20(%rbp)
   7:	41 83 e2 40          	and    $0x40,%r10d
   b:	75 28                	jne    0x35
   d:	89 f2                	mov    %esi,%edx
   f:	f7 d2                	not    %edx
  11:	81 e2 00 00 41 00    	and    $0x410000,%edx
  17:	74 1c                	je     0x35
  19:	89 f2                	mov    %esi,%edx
  1b:	bf 9c ff ff ff       	mov    $0xffffff9c,%edi
  20:	48 89 c6             	mov    %rax,%rsi
  23:	b8 01 01 00 00       	mov    $0x101,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 23                	ja     0x55
  32:	5d                   	pop    %rbp
  33:	c3                   	ret
  34:	90                   	nop
  35:	48 8d 4d 10          	lea    0x10(%rbp),%rcx
  39:	c7 45 b8 10 00 00 00 	movl   $0x10,-0x48(%rbp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 23                	ja     0x2b
   8:	5d                   	pop    %rbp
   9:	c3                   	ret
   a:	90                   	nop
   b:	48 8d 4d 10          	lea    0x10(%rbp),%rcx
   f:	c7 45 b8 10 00 00 00 	movl   $0x10,-0x48(%rbp)
[   78.882574][    C3] RSP: 002b:00007ffc7a5f6af0 EFLAGS: 00000206 ORIG_RAX: 0000000000000101
[   78.882575][    C3] RAX: ffffffffffffffda RBX: 00007ffc7a5f6d80 RCX: 00007f6f400496e5
[   78.882576][    C3] RDX: 0000000000080000 RSI: 00007ffc7a5f6b70 RDI: 00000000ffffff9c
[   78.882577][    C3] RBP: 00007ffc7a5f6af0 R08: 00007ffc7a5f6d67 R09: 0000000000000000
[   78.882577][    C3] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffc7a5f6b70
[   78.882578][    C3] R13: 00007ffc7a5f6b70 R14: 00007f6f4001b000 R15: 0000000000000000
| [   99.373494][   T72] softirqs last disabled at (513318): __fib6_clean_all (./include/linux/spinlock.h:353 net/ipv6/ip6_fib.c:2323)
| [   99.373496][   T72] Preemption disabled at:
| [   99.373497][   T72] vprintk_emit (kernel/printk/printk.c:2471)
| [   99.373507][   T72] Tainted: [W]=WARN
[   99.373508][   T72] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   99.373510][   T72] Workqueue: netns cleanup_net
[   99.373516][   T72] Call Trace:
[   99.373517][   T72]  <TASK>
[   99.373519][   T72]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   99.373524][   T72]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   99.373525][   T72]  __might_resched.cold (kernel/sched/core.c:9234)
[   99.373528][   T72]  ? prb_next_reserve_seq (kernel/printk/printk_ringbuffer.c:2128)
[   99.373530][   T72]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   99.373534][   T72]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   99.373536][   T72]  __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))
[   99.373539][   T72]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   99.373542][   T72]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   99.373546][   T72]  ? 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)
[   99.373548][   T72]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   99.373550][   T72]  put_chars (drivers/char/virtio_console.c:1176)
[   99.373552][   T72]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   99.373553][   T72]  ? console_prepend_replay (kernel/printk/printk.c:3005)
[   99.373556][   T72]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   99.373560][   T72]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   99.373562][   T72]  ? vsnprintf (lib/vsprintf.c:2953 (discriminator 1))
[   99.373564][   T72]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   99.373566][   T72]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   99.373567][   T72]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   99.373568][   T72]  console_emit_next_record (kernel/printk/printk.c:3183)
[   99.373571][   T72]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   99.373574][   T72]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   99.373575][   T72]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   99.373576][   T72]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   99.373577][   T72]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   99.373580][   T72]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   99.373582][   T72]  console_flush_one_record (kernel/printk/printk.c:3268)
[   99.373584][   T72]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   99.373587][   T72]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   99.373589][   T72]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   99.373590][   T72]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   99.373592][   T72]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   99.373593][   T72]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   99.373594][   T72]  ? 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)
[   99.373596][   T72]  ? __rcu_read_lock (kernel/rcu/tree_plugin.h:391 (discriminator 6))
[   99.373597][   T72]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   99.373599][   T72]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   99.373600][   T72]  vprintk_emit (kernel/printk/printk.c:2479)
[   99.373602][   T72]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   99.373603][   T72]  ? cleanup_net (net/core/net_namespace.c:706)
[   99.373605][   T72]  ? worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   99.373607][   T72]  ? kthread (kernel/kthread.c:436)
[   99.373609][   T72]  ? ret_from_fork (arch/x86/kernel/process.c:158)
[   99.373612][   T72]  ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
[   99.373615][   T72]  _printk (kernel/printk/printk.c:2504)
[   99.373618][   T72]  ? snapshot_read.cold (user.c:?)
[   99.373620][   T72]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   99.373623][   T72]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   99.373625][   T72]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   99.373627][   T72]  ? netdev_notice (net/core/dev.c:13194)
[   99.373630][   T72]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   99.373631][   T72]  ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1))
[   99.373632][   T72]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:78)
[   99.373635][   T72]  ? down_write_nested (kernel/locking/rwsem.c:1759)
[   99.373636][   T72]  ? 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)
[   99.373637][   T72]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[   99.373640][   T72]  dev_set_allmulti (net/core/dev_api.c:315)
[   99.373642][   T72]  del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341)
[   99.373646][   T72]  br_dev_delete (net/bridge/br_if.c:387)
[   99.373648][   T72]  br_net_exit_rtnl (net/bridge/br.c:414)
[   99.373650][   T72]  ops_undo_list (net/core/net_namespace.c:181 net/core/net_namespace.c:249)
[   99.373652][   T72]  ? netns_install (./include/linux/ns_common.h:26)
[   99.373654][   T72]  ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563)
[   99.373657][   T72]  cleanup_net (net/core/net_namespace.c:706)
[   99.373659][   T72]  ? net_passive_dec (./include/linux/llist.h:241)
[   99.373661][   T72]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   99.373662][   T72]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   99.373664][   T72]  process_one_work (kernel/workqueue.c:3387)
[   99.373667][   T72]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[   99.373669][   T72]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   99.373671][   T72]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   99.373673][   T72]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   99.373675][   T72]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   99.373677][   T72]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   99.373679][   T72]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   99.373681][   T72]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   99.373682][   T72]  kthread (kernel/kthread.c:436)
[   99.373684][   T72]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   99.373686][   T72]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   99.373687][   T72]  ret_from_fork (arch/x86/kernel/process.c:158)
[   99.373689][   T72]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[   99.373691][   T72]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   99.373694][   T72]  ? kthread_affine_preferred (kernel/kthread.c:857)


Finger prints:
br_device_event:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print
br_port_carrier_check:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print
mark_lock_irq:mark_lock:mark_usage:__lock_acquire:_raw_spin_lock
netlink_release:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print
__alloc_skb:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars
netif_change_name:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars
netlink_release:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars
__fib6_clean_all:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars
__irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print
__irq_exit_rcu:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars
inet6_fill_ifla6_attrs:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars