======================================
| [   10.445001][  T212] softirqs last disabled at (39575): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   10.445004][  T212] Preemption disabled at:
| [   10.445004][  T212] 0x0
| [   10.445015][  T212] Tainted: [W]=WARN
[   10.445016][  T212] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.445017][  T212] Call Trace:
[   10.445019][  T212]  <TASK>
[   10.445020][  T212]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   10.445027][  T212]  __might_resched.cold (kernel/sched/core.c:9234)
[   10.445031][  T212]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   10.445035][  T212]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   10.445040][  T212]  __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))
[   10.445042][  T212]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.445049][  T212]  ? 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)
[   10.445052][  T212]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.445056][  T212]  put_chars (drivers/char/virtio_console.c:1176)
[   10.445059][  T212]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   10.445060][  T212]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   10.445063][  T212]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   10.445069][  T212]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   10.445077][  T212]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   10.445080][  T212]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.445082][  T212]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.445087][  T212]  console_emit_next_record (kernel/printk/printk.c:3183)
[   10.445091][  T212]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   10.445093][  T212]  ? 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))
[   10.445096][  T212]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.445098][  T212]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.445102][  T212]  console_flush_one_record (kernel/printk/printk.c:3268)
[   10.445106][  T212]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   10.445108][  T212]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.445114][  T212]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   10.445117][  T212]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   10.445119][  T212]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.445121][  T212]  ? 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)
[   10.445125][  T212]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   10.445127][  T212]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   10.445130][  T212]  vprintk_emit (kernel/printk/printk.c:2479)
[   10.445133][  T212]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   10.445136][  T212]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.445140][  T212]  _printk (kernel/printk/printk.c:2504)
[   10.445144][  T212]  ? snapshot_read.cold (user.c:?)
[   10.445146][  T212]  ? 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)
[   10.445149][  T212]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   10.445153][  T212]  ? 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)
[   10.445156][  T212]  do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4))
[   10.445160][  T212]  ? exit_notify (kernel/exit.c:780)
[   10.445161][  T212]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   10.445164][  T212]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.445168][  T212]  do_group_exit (kernel/exit.c:1151)
[   10.445171][  T212]  __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160)
[   10.445173][  T212]  x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232)
[   10.445175][  T212]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   10.445180][  T212]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   10.445183][  T212]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.445185][  T212] RIP: 0033:0x7f342b0d11b8
[   10.445187][  T212] Code: Unable to access opcode bytes at 0x7f342b0d118e.

Code starting with the faulting instruction
===========================================
[   10.445188][  T212] RSP: 002b:00007ffd216fcb88 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[   10.445191][  T212] RAX: ffffffffffffffda RBX: 00007f342b201f88 RCX: 00007f342b0d11b8
[   10.445192][  T212] RDX: 00007f342ae1bfc8 RSI: fffffffffffffeb8 RDI: 0000000000000000
[   10.445193][  T212] RBP: 00007ffd216fcbe0 R08: 0000000000000000 R09: 0000000000008010
[   10.445194][  T212] R10: 00007ffd216fc9a0 R11: 0000000000000246 R12: 0000000000000001
[   10.445195][  T212] R13: 0000000000000000 R14: 00007f342b200680 R15: 00007f342b201fa0
| [   11.762229][  T288] softirqs last disabled at (36180): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   11.762232][  T288] Preemption disabled at:
| [   11.762233][  T288] vprintk_emit (kernel/printk/printk.c:2471)
| [   11.762241][  T288] Tainted: [W]=WARN
[   11.762242][  T288] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.762244][  T288] Call Trace:
[   11.762245][  T288]  <TASK>
[   11.762247][  T288]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   11.762254][  T288]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   11.762255][  T288]  __might_resched.cold (kernel/sched/core.c:9234)
[   11.762260][  T288]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   11.762264][  T288]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   11.762269][  T288]  __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))
[   11.762271][  T288]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.762277][  T288]  ? 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)
[   11.762280][  T288]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.762284][  T288]  put_chars (drivers/char/virtio_console.c:1176)
[   11.762287][  T288]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   11.762290][  T288]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   11.762295][  T288]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   11.762303][  T288]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   11.762306][  T288]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.762309][  T288]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.762313][  T288]  console_emit_next_record (kernel/printk/printk.c:3183)
[   11.762317][  T288]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   11.762319][  T288]  ? 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))
[   11.762322][  T288]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.762324][  T288]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.762328][  T288]  console_flush_one_record (kernel/printk/printk.c:3268)
[   11.762332][  T288]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   11.762334][  T288]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.762340][  T288]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   11.762342][  T288]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   11.762344][  T288]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.762346][  T288]  ? 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)
[   11.762350][  T288]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   11.762352][  T288]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   11.762355][  T288]  vprintk_emit (kernel/printk/printk.c:2479)
[   11.762358][  T288]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   11.762360][  T288]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.762361][  T288]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   11.762366][  T288]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   11.762369][  T288]  _printk (kernel/printk/printk.c:2504)
[   11.762373][  T288]  ? snapshot_read.cold (user.c:?)
[   11.762381][  T288]  ? br_multicast_flood (??:?)
[   11.762385][  T288]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   11.762386][  T288]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   11.762388][  T288]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   11.762393][  T288]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   11.762397][  T288]  br_init_port (net/bridge/br_stp_if.c:39)
[   11.762399][  T288]  new_nbp (net/bridge/br_if.c:449)
[   11.762403][  T288]  br_add_if (net/bridge/br_if.c:592)
[   11.762406][  T288]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   11.762409][  T288]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   11.762415][  T288]  do_set_master (net/core/rtnetlink.c:3071)
[   11.762419][  T288]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   11.762422][  T288]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   11.762426][  T288]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   11.762427][  T288]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   11.762430][  T288]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   11.762434][  T288]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   11.762436][  T288]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   11.762438][  T288]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   11.762440][  T288]  ? kasan_save_stack (mm/kasan/common.c:58)
[   11.762442][  T288]  ? kasan_save_stack (mm/kasan/common.c:57)
[   11.762444][  T288]  ? kasan_save_track (mm/kasan/common.c:78)
[   11.762445][  T288]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   11.762447][  T288]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.762449][  T288]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   11.762452][  T288]  ? ___sys_sendmsg (net/socket.c:2758)
[   11.762456][  T288]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.762458][  T288]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   11.762461][  T288]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.762463][  T288]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.762465][  T288]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.762466][  T288]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.762467][  T288]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   11.762470][  T288]  ? __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)
[   11.762471][  T288]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   11.762473][  T288]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   11.762477][  T288]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   11.762478][  T288]  ? nla_get_range_signed (lib/nlattr.c:270)
[   11.762483][  T288]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.762485][  T288]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   11.762491][  T288]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   11.762496][  T288]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.762498][  T288]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.762503][  T288]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.762505][  T288]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   11.762507][  T288]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.762509][  T288]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.762513][  T288]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.762515][  T288]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   11.762518][  T288]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.762520][  T288]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.762524][  T288]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.762526][  T288]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   11.762530][  T288]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   11.762533][  T288]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.762536][  T288]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   11.762543][  T288]  ? 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))
[   11.762545][  T288]  ? 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))
[   11.762549][  T288]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   11.762554][  T288]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   11.762556][  T288]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   11.762561][  T288]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   11.762565][  T288]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   11.762569][  T288]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.762570][  T288]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   11.762576][  T288]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   11.762579][  T288]  ____sys_sendmsg (net/socket.c:2713)
[   11.762581][  T288]  ? copy_msghdr_from_user (net/socket.c:2650)
[   11.762584][  T288]  ? sock_write_iter (net/socket.c:1269)
[   11.762585][  T288]  ? move_addr_to_kernel (net/socket.c:258)
[   11.762593][  T288]  ___sys_sendmsg (net/socket.c:2767)
[   11.762596][  T288]  ? copy_msghdr_from_user (net/socket.c:2619)
[   11.762613][  T288]  __sys_sendmsg (net/socket.c:2799)
[   11.762616][  T288]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   11.762622][  T288]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.762632][  T288]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   11.762635][  T288]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   11.762638][  T288]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.762641][  T288] RIP: 0033:0x7f492e64f54e
[   11.762645][  T288] 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
[   11.762646][  T288] RSP: 002b:00007ffc6c1a1dd0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   11.762649][  T288] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f492e64f54e
[   11.762650][  T288] RDX: 0000000000000000 RSI: 00007ffc6c1a1e80 RDI: 0000000000000005
[   11.762651][  T288] RBP: 00007ffc6c1a1de0 R08: 0000000000000000 R09: 0000000000000000
[   11.762652][  T288] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a917a9c
[   11.762653][  T288] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffc6c1a2540
| [   12.949042][  T308] softirqs last disabled at (5172): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   12.949045][  T308] Preemption disabled at:
| [   12.949045][  T308] vprintk_emit (kernel/printk/printk.c:2471)
| [   12.949054][  T308] Tainted: [W]=WARN
[   12.949054][  T308] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.949056][  T308] Call Trace:
[   12.949058][  T308]  <TASK>
[   12.949059][  T308]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   12.949065][  T308]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   12.949067][  T308]  __might_resched.cold (kernel/sched/core.c:9234)
[   12.949072][  T308]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   12.949076][  T308]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   12.949080][  T308]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   12.949082][  T308]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.949089][  T308]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   12.949092][  T308]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.949095][  T308]  put_chars (drivers/char/virtio_console.c:1176)
[   12.949098][  T308]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   12.949102][  T308]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   12.949105][  T308]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   12.949109][  T308]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   12.949113][  T308]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.949115][  T308]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.949120][  T308]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   12.949124][  T308]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.949126][  T308]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.949130][  T308]  console_emit_next_record (kernel/printk/printk.c:3183)
[   12.949134][  T308]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   12.949136][  T308]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   12.949140][  T308]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.949141][  T308]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.949146][  T308]  console_flush_one_record (kernel/printk/printk.c:3268)
[   12.949150][  T308]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   12.949152][  T308]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.949157][  T308]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   12.949160][  T308]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   12.949162][  T308]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.949164][  T308]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   12.949168][  T308]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   12.949170][  T308]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   12.949173][  T308]  vprintk_emit (kernel/printk/printk.c:2479)
[   12.949176][  T308]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   12.949179][  T308]  ? netlink_broadcast_filtered (net/netlink/af_netlink.c:1541)
[   12.949182][  T308]  ? kasan_save_stack (mm/kasan/common.c:58)
[   12.949184][  T308]  ? kasan_save_stack (mm/kasan/common.c:57)
[   12.949188][  T308]  _printk (kernel/printk/printk.c:2504)
[   12.949191][  T308]  ? snapshot_read.cold (user.c:?)
[   12.949193][  T308]  ? __sys_setsockopt (net/socket.c:2422)
[   12.949198][  T308]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   12.949202][  T308]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   12.949206][  T308]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   12.949209][  T308]  ? netdev_notice (net/core/dev.c:13194)
[   12.949211][  T308]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   12.949217][  T308]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.949220][  T308]  ? 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)
[   12.949222][  T308]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[   12.949226][  T308]  dev_set_allmulti (net/core/dev_api.c:315)
[   12.949230][  T308]  vif_add (net/ipv4/ipmr.c:900)
[   12.949233][  T308]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   12.949235][  T308]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   12.949239][  T308]  ? ip_mr_output_finish.isra.0 (net/ipv4/ipmr.c:2310)
[   12.949243][  T308]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.949245][  T308]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   12.949250][  T308]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   12.949253][  T308]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   12.949257][  T308]  ip_mroute_setsockopt (net/ipv4/ipmr.c:1497 (discriminator 1))
[   12.949261][  T308]  ? ipmr_rtm_route (net/ipv4/ipmr.c:2973)
[   12.949266][  T308]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   12.949268][  T308]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.949273][  T308]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   12.949275][  T308]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   12.949278][  T308]  do_ip_setsockopt (net/ipv4/ip_sockglue.c:952)
[   12.949282][  T308]  ? ip_sock_set_tos (net/ipv4/ip_sockglue.c:609)
[   12.949285][  T308]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.949288][  T308]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   12.949290][  T308]  ? do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   12.949293][  T308]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.949295][  T308]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   12.949297][  T308]  ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4427 (discriminator 2))
[   12.949299][  T308]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   12.949301][  T308]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:210 (discriminator 6) kernel/locking/spinlock.c:221 (discriminator 6))
[   12.949303][  T308]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   12.949307][  T308]  ip_setsockopt (net/ipv4/ip_sockglue.c:1421)
[   12.949310][  T308]  raw_setsockopt (net/ipv4/raw.c:851)
[   12.949313][  T308]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.949315][  T308]  ? raw_bind (net/ipv4/raw.c:733)
[   12.949320][  T308]  do_sock_setsockopt (net/socket.c:2397)
[   12.949323][  T308]  ? put_user_ifreq (./arch/x86/include/asm/compat.h:94 (discriminator 1))
[   12.949325][  T308]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   12.949328][  T308]  ? fd_install (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:971 (discriminator 2) fs/file.c:698 (discriminator 2))
[   12.949332][  T308]  ? fd_install (./include/linux/rcupdate.h:974 (discriminator 1) fs/file.c:698 (discriminator 1))
[   12.949337][  T308]  __sys_setsockopt (net/socket.c:2422)
[   12.949341][  T308]  __x64_sys_setsockopt (net/socket.c:2428 net/socket.c:2425 net/socket.c:2425)
[   12.949343][  T308]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   12.949347][  T308]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   12.949349][  T308]  ? do_syscall_64 (arch/x86/entry/syscall_64.c:81 (discriminator 44))
[   12.949350][  T308]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   12.949352][  T308]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   12.949355][  T308]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.949357][  T308] RIP: 0033:0x7f135a6e02de
[   12.949361][  T308] Code: 55 48 63 c9 48 63 ff 45 89 c9 48 89 e5 48 83 ec 08 6a 2c e8 94 72 f7 ff c9 c3 66 90 f3 0f 1e fa 49 89 ca b8 36 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 0a c3 66 0f 1f 84 00 00 00 00 00 48 8b 15 e1
All code
========
   0:	55                   	push   %rbp
   1:	48 63 c9             	movslq %ecx,%rcx
   4:	48 63 ff             	movslq %edi,%rdi
   7:	45 89 c9             	mov    %r9d,%r9d
   a:	48 89 e5             	mov    %rsp,%rbp
   d:	48 83 ec 08          	sub    $0x8,%rsp
  11:	6a 2c                	push   $0x2c
  13:	e8 94 72 f7 ff       	call   0xfffffffffff772ac
  18:	c9                   	leave
  19:	c3                   	ret
  1a:	66 90                	xchg   %ax,%ax
  1c:	f3 0f 1e fa          	endbr64
  20:	49 89 ca             	mov    %rcx,%r10
  23:	b8 36 00 00 00       	mov    $0x36,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 0a                	ja     0x3c
  32:	c3                   	ret
  33:	66 0f 1f 84 00 00 00 	nopw   0x0(%rax,%rax,1)
  3a:	00 00 
  3c:	48                   	rex.W
  3d:	8b                   	.byte 0x8b
  3e:	15                   	.byte 0x15
  3f:	e1                   	.byte 0xe1

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 0a                	ja     0x12
   8:	c3                   	ret
   9:	66 0f 1f 84 00 00 00 	nopw   0x0(%rax,%rax,1)
  10:	00 00 
  12:	48                   	rex.W
  13:	8b                   	.byte 0x8b
  14:	15                   	.byte 0x15
  15:	e1                   	.byte 0xe1
[   12.949363][  T308] RSP: 002b:00007ffc92879ff8 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
[   12.949365][  T308] RAX: ffffffffffffffda RBX: 0000557da05682c0 RCX: 00007f135a6e02de
[   12.949367][  T308] RDX: 00000000000000ca RSI: 0000000000000000 RDI: 0000000000000007
[   12.949368][  T308] RBP: 00007ffc9287a0b0 R08: 0000000000000010 R09: 0000000000000001
[   12.949369][  T308] R10: 00007ffc9287a030 R11: 0000000000000246 R12: 0000557dad1250c4
[   12.949369][  T308] R13: 00007ffc9287a100 R14: 0000557dad1250b0 R15: 0000000000000000
| [   27.096485][    C3] softirqs last disabled at (665709): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   27.096487][    C3] Preemption disabled at:
| [   27.096488][    C3] 0x0
| [   27.096499][    C3] Tainted: [W]=WARN
[   27.096500][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   27.096501][    C3] Call Trace:
[   27.096503][    C3]  <IRQ>
[   27.096505][    C3]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   27.096511][    C3]  __might_resched.cold (kernel/sched/core.c:9234)
[   27.096514][    C3]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   27.096518][    C3]  ? __asan_memcpy (mm/kasan/shadow.c:106 (discriminator 1))
[   27.096521][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.096524][    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))
[   27.096527][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   27.096530][    C3]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   27.096534][    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)
[   27.096536][    C3]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   27.096539][    C3]  put_chars (drivers/char/virtio_console.c:1176)
[   27.096540][    C3]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   27.096542][    C3]  ? console_prepend_replay (kernel/printk/printk.c:3005)
[   27.096545][    C3]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   27.096550][    C3]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   27.096552][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.096553][    C3]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   27.096556][    C3]  console_emit_next_record (kernel/printk/printk.c:3183)
[   27.096559][    C3]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   27.096561][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.096562][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.096563][    C3]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   27.096565][    C3]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   27.096566][    C3]  console_flush_one_record (kernel/printk/printk.c:3268)
[   27.096569][    C3]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   27.096572][    C3]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   27.096573][    C3]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   27.096575][    C3]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   27.096577][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.096578][    C3]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   27.096579][    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)
[   27.096581][    C3]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   27.096583][    C3]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   27.096585][    C3]  vprintk_emit (kernel/printk/printk.c:2479)
[   27.096587][    C3]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   27.096588][    C3]  ? common_startup_64 (arch/x86/kernel/head_64.S:418)
[   27.096592][    C3]  _printk (kernel/printk/printk.c:2504)
[   27.096595][    C3]  ? snapshot_read.cold (user.c:?)
[   27.096596][    C3]  ? arch_stack_walk (arch/x86/kernel/stacktrace.c:25)
[   27.096599][    C3]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   27.096601][    C3]  ? nbcon_cpu_emergency_enter (./include/linux/instrumented.h:112 ./include/linux/atomic/atomic-instrumented.h:435 kernel/printk/nbcon.c:1723)
[   27.096603][    C3]  print_irq_inversion_bug.part.0 (kernel/locking/lockdep.c:4097 (discriminator 1))
[   27.096605][    C3]  mark_lock_irq (kernel/locking/lockdep.c:4095 kernel/locking/lockdep.c:4174 kernel/locking/lockdep.c:4310)
[   27.096608][    C3]  mark_lock (kernel/locking/lockdep.c:4769)
[   27.096610][    C3]  mark_usage (kernel/locking/lockdep.c:4658)
[   27.096612][    C3]  __lock_acquire (kernel/locking/lockdep.c:5208)
[   27.096614][    C3]  lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   27.096616][    C3]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88)
[   27.096619][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.096620][    C3]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   27.096622][    C3]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54)
[   27.096623][    C3]  _raw_spin_lock (./include/linux/spinlock_api_smp.h:190 (discriminator 1) kernel/locking/spinlock.c:173 (discriminator 1))
[   27.096625][    C3]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88)
[   27.096626][    C3]  br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88)
[   27.096628][    C3]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54)
[   27.096629][    C3]  call_timer_fn (kernel/time/timer.c:1748)
[   27.096633][    C3]  ? detach_if_pending (./include/linux/list.h:1159)
[   27.096634][    C3]  ? debug_object_active_state (lib/debugobjects.c:1122)
[   27.096637][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   27.096639][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   27.096641][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.096643][    C3]  __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2374)
[   27.096645][    C3]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54)
[   27.096647][    C3]  ? __bpf_trace_itimer_expire (./include/trace/events/timer.h:407)
[   27.096649][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   27.096651][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   27.096654][    C3]  run_timer_softirq (kernel/time/timer.c:2386 kernel/time/timer.c:2395 kernel/time/timer.c:2403)
[   27.096656][    C3]  ? __run_timers (./include/trace/events/timer.h:138 (discriminator 19))
[   27.096658][    C3]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   27.096661][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.096662][    C3]  handle_softirqs (kernel/softirq.c:645)
[   27.096664][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   27.096665][    C3]  ? _local_bh_enable (kernel/softirq.c:428 (discriminator 1))
[   27.096668][    C3]  __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
[   27.096669][    C3]  irq_exit_rcu (kernel/softirq.c:784)
[   27.096671][    C3]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1062 (discriminator 37) arch/x86/kernel/apic/apic.c:1062 (discriminator 37))
[   27.096674][    C3]  </IRQ>
[   27.096674][    C3]  <TASK>
[   27.096675][    C3]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   27.096676][    C3]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:674)
[   27.096679][    C3] RIP: 0010:pv_native_safe_halt (./arch/x86/include/asm/irqflags.h:48 arch/x86/kernel/paravirt.c:63)
[   27.096682][    C3] Code: 48 8b 3d 94 82 68 02 e8 1f 00 00 00 48 2b 05 58 d3 a0 00 c3 0f 1f 80 00 00 00 00 f3 0f 1e fa eb 07 0f 00 2d 13 06 0e 00 fb f4 <c3> 0f 1f 40 d6 48 83 ec 20 8b 17 49 89 f8 83 e2 fe 41 89 d2 0f 01
All code
========
   0:	48 8b 3d 94 82 68 02 	mov    0x2688294(%rip),%rdi        # 0x268829b
   7:	e8 1f 00 00 00       	call   0x2b
   c:	48 2b 05 58 d3 a0 00 	sub    0xa0d358(%rip),%rax        # 0xa0d36b
  13:	c3                   	ret
  14:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  1b:	f3 0f 1e fa          	endbr64
  1f:	eb 07                	jmp    0x28
  21:	0f 00 2d 13 06 0e 00 	verw   0xe0613(%rip)        # 0xe063b
  28:	fb                   	sti
  29:	f4                   	hlt
  2a:*	c3                   	ret		<-- trapping instruction
  2b:	0f 1f 40 d6          	nopl   -0x2a(%rax)
  2f:	48 83 ec 20          	sub    $0x20,%rsp
  33:	8b 17                	mov    (%rdi),%edx
  35:	49 89 f8             	mov    %rdi,%r8
  38:	83 e2 fe             	and    $0xfffffffe,%edx
  3b:	41 89 d2             	mov    %edx,%r10d
  3e:	0f                   	.byte 0xf
  3f:	01                   	.byte 0x1

Code starting with the faulting instruction
===========================================
   0:	c3                   	ret
   1:	0f 1f 40 d6          	nopl   -0x2a(%rax)
   5:	48 83 ec 20          	sub    $0x20,%rsp
   9:	8b 17                	mov    (%rdi),%edx
   b:	49 89 f8             	mov    %rdi,%r8
   e:	83 e2 fe             	and    $0xfffffffe,%edx
  11:	41 89 d2             	mov    %edx,%r10d
  14:	0f                   	.byte 0xf
  15:	01                   	.byte 0x1
[   27.096683][    C3] RSP: 0018:ffa0000000167e00 EFLAGS: 00000282
[   27.096687][    C3] RAX: 00000000000a286b RBX: ff11000001cb8040 RCX: ffffffffb1f06247
[   27.096688][    C3] RDX: ff11000001cb8040 RSI: ffffffffb5111011 RDI: ffffffffb4a949e0
[   27.096689][    C3] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[   27.096690][    C3] R10: 0000000000000003 R11: 0000000000000001 R12: 1ff400000002cfc3
[   27.096691][    C3] R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000000
[   27.096692][    C3]  ? cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   27.096696][    C3]  default_idle (./arch/x86/include/asm/paravirt.h:62 arch/x86/kernel/process.c:768)
[   27.096697][    C3]  default_idle_call (kernel/sched/idle.c:122)
[   27.096699][    C3]  cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   27.096701][    C3]  ? arch_cpu_idle_exit+0x40/0x40
[   27.096703][    C3]  ? mark_tsc_async_resets (arch/x86/kernel/tsc_sync.c:49)
[   27.096705][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.096707][    C3]  do_idle (kernel/sched/idle.c:355)
[   27.096709][    C3]  cpu_startup_entry (kernel/sched/idle.c:454)
[   27.096710][    C3]  start_secondary (arch/x86/kernel/smpboot.c:312)
[   27.096712][    C3]  ? set_cpu_sibling_map (arch/x86/kernel/smpboot.c:733 (discriminator 4))
[   27.096714][    C3]  common_startup_64 (arch/x86/kernel/head_64.S:418)
| [   27.154907][    C3]
| [   27.154973][    C3]
| [   27.154973][    C3] stack backtrace:
| [   27.155187][    C3] Tainted: [W]=WARN
[   27.155188][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   27.155188][    C3] Call Trace:
[   27.155189][    C3]  <IRQ>
[   27.155190][    C3]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   27.155194][    C3]  print_irq_inversion_bug.part.0.cold (kernel/locking/lockdep.c:4141)
[   27.155198][    C3]  mark_lock_irq (kernel/locking/lockdep.c:4095 kernel/locking/lockdep.c:4174 kernel/locking/lockdep.c:4310)
[   27.155201][    C3]  mark_lock (kernel/locking/lockdep.c:4769)
[   27.155203][    C3]  mark_usage (kernel/locking/lockdep.c:4658)
[   27.155204][    C3]  __lock_acquire (kernel/locking/lockdep.c:5208)
[   27.155207][    C3]  lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   27.155208][    C3]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88)
[   27.155210][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.155212][    C3]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   27.155214][    C3]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54)
[   27.155215][    C3]  _raw_spin_lock (./include/linux/spinlock_api_smp.h:190 (discriminator 1) kernel/locking/spinlock.c:173 (discriminator 1))
[   27.155217][    C3]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88)
[   27.155218][    C3]  br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88)
[   27.155220][    C3]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54)
[   27.155221][    C3]  call_timer_fn (kernel/time/timer.c:1748)
[   27.155223][    C3]  ? detach_if_pending (./include/linux/list.h:1159)
[   27.155225][    C3]  ? debug_object_active_state (lib/debugobjects.c:1122)
[   27.155228][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   27.155230][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   27.155231][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.155233][    C3]  __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2374)
[   27.155235][    C3]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54)
[   27.155237][    C3]  ? __bpf_trace_itimer_expire (./include/trace/events/timer.h:407)
[   27.155239][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   27.155241][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   27.155244][    C3]  run_timer_softirq (kernel/time/timer.c:2386 kernel/time/timer.c:2395 kernel/time/timer.c:2403)
[   27.155246][    C3]  ? __run_timers (./include/trace/events/timer.h:138 (discriminator 19))
[   27.155248][    C3]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   27.155250][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.155252][    C3]  handle_softirqs (kernel/softirq.c:645)
[   27.155254][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   27.155255][    C3]  ? _local_bh_enable (kernel/softirq.c:428 (discriminator 1))
[   27.155258][    C3]  __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
[   27.155259][    C3]  irq_exit_rcu (kernel/softirq.c:784)
[   27.155261][    C3]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1062 (discriminator 37) arch/x86/kernel/apic/apic.c:1062 (discriminator 37))
[   27.155262][    C3]  </IRQ>
[   27.155263][    C3]  <TASK>
[   27.155264][    C3]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   27.155265][    C3]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:674)
[   27.155267][    C3] RIP: 0010:pv_native_safe_halt (./arch/x86/include/asm/irqflags.h:48 arch/x86/kernel/paravirt.c:63)
[   27.155269][    C3] Code: 48 8b 3d 94 82 68 02 e8 1f 00 00 00 48 2b 05 58 d3 a0 00 c3 0f 1f 80 00 00 00 00 f3 0f 1e fa eb 07 0f 00 2d 13 06 0e 00 fb f4 <c3> 0f 1f 40 d6 48 83 ec 20 8b 17 49 89 f8 83 e2 fe 41 89 d2 0f 01
All code
========
   0:	48 8b 3d 94 82 68 02 	mov    0x2688294(%rip),%rdi        # 0x268829b
   7:	e8 1f 00 00 00       	call   0x2b
   c:	48 2b 05 58 d3 a0 00 	sub    0xa0d358(%rip),%rax        # 0xa0d36b
  13:	c3                   	ret
  14:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  1b:	f3 0f 1e fa          	endbr64
  1f:	eb 07                	jmp    0x28
  21:	0f 00 2d 13 06 0e 00 	verw   0xe0613(%rip)        # 0xe063b
  28:	fb                   	sti
  29:	f4                   	hlt
  2a:*	c3                   	ret		<-- trapping instruction
  2b:	0f 1f 40 d6          	nopl   -0x2a(%rax)
  2f:	48 83 ec 20          	sub    $0x20,%rsp
  33:	8b 17                	mov    (%rdi),%edx
  35:	49 89 f8             	mov    %rdi,%r8
  38:	83 e2 fe             	and    $0xfffffffe,%edx
  3b:	41 89 d2             	mov    %edx,%r10d
  3e:	0f                   	.byte 0xf
  3f:	01                   	.byte 0x1

Code starting with the faulting instruction
===========================================
   0:	c3                   	ret
   1:	0f 1f 40 d6          	nopl   -0x2a(%rax)
   5:	48 83 ec 20          	sub    $0x20,%rsp
   9:	8b 17                	mov    (%rdi),%edx
   b:	49 89 f8             	mov    %rdi,%r8
   e:	83 e2 fe             	and    $0xfffffffe,%edx
  11:	41 89 d2             	mov    %edx,%r10d
  14:	0f                   	.byte 0xf
  15:	01                   	.byte 0x1
[   27.155270][    C3] RSP: 0018:ffa0000000167e00 EFLAGS: 00000282
[   27.155272][    C3] RAX: 00000000000a286b RBX: ff11000001cb8040 RCX: ffffffffb1f06247
[   27.155273][    C3] RDX: ff11000001cb8040 RSI: ffffffffb5111011 RDI: ffffffffb4a949e0
[   27.155273][    C3] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[   27.155274][    C3] R10: 0000000000000003 R11: 0000000000000001 R12: 1ff400000002cfc3
[   27.155275][    C3] R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000000
[   27.155276][    C3]  ? cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   27.155279][    C3]  default_idle (./arch/x86/include/asm/paravirt.h:62 arch/x86/kernel/process.c:768)
[   27.155280][    C3]  default_idle_call (kernel/sched/idle.c:122)
[   27.155282][    C3]  cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   27.155284][    C3]  ? arch_cpu_idle_exit+0x40/0x40
[   27.155285][    C3]  ? mark_tsc_async_resets (arch/x86/kernel/tsc_sync.c:49)
[   27.155287][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.155289][    C3]  do_idle (kernel/sched/idle.c:355)
[   27.155290][    C3]  cpu_startup_entry (kernel/sched/idle.c:454)
[   27.155292][    C3]  start_secondary (arch/x86/kernel/smpboot.c:312)
[   27.155294][    C3]  ? set_cpu_sibling_map (arch/x86/kernel/smpboot.c:733 (discriminator 4))
[   27.155296][    C3]  common_startup_64 (arch/x86/kernel/head_64.S:418)
| [  519.622845][   T12] softirqs last disabled at (9530): __fib6_clean_all (./include/linux/spinlock.h:353 net/ipv6/ip6_fib.c:2323)
| [  519.622847][   T12] Preemption disabled at:
| [  519.622848][   T12] 0x0
| [  519.622858][   T12] Tainted: [W]=WARN
[  519.622859][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  519.622861][   T12] Workqueue: netns cleanup_net
[  519.622867][   T12] Call Trace:
[  519.622869][   T12]  <TASK>
[  519.622871][   T12]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[  519.622877][   T12]  __might_resched.cold (kernel/sched/core.c:9234)
[  519.622880][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[  519.622884][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  519.622887][   T12]  __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))
[  519.622890][   T12]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[  519.622893][   T12]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[  519.622898][   T12]  ? 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)
[  519.622900][   T12]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[  519.622902][   T12]  put_chars (drivers/char/virtio_console.c:1176)
[  519.622904][   T12]  ? __send_to_port (drivers/char/virtio_console.c:654)
[  519.622905][   T12]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[  519.622908][   T12]  ? console_prepend_replay (kernel/printk/printk.c:3005)
[  519.622911][   T12]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[  519.622915][   T12]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[  519.622917][   T12]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[  519.622919][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  519.622922][   T12]  console_emit_next_record (kernel/printk/printk.c:3183)
[  519.622924][   T12]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[  519.622926][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  519.622928][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  519.622929][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  519.622930][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  519.622932][   T12]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[  519.622933][   T12]  console_flush_one_record (kernel/printk/printk.c:3268)
[  519.622936][   T12]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[  519.622939][   T12]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[  519.622940][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  519.622942][   T12]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[  519.622944][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  519.622945][   T12]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[  519.622946][   T12]  ? 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)
[  519.622948][   T12]  ? __rcu_read_lock (kernel/rcu/tree_plugin.h:391 (discriminator 6))
[  519.622949][   T12]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[  519.622951][   T12]  ? vprintk_emit (kernel/printk/printk.c:2478)
[  519.622953][   T12]  vprintk_emit (kernel/printk/printk.c:2479)
[  519.622955][   T12]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[  519.622956][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  519.622957][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[  519.622960][   T12]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:78)
[  519.622962][   T12]  _printk (kernel/printk/printk.c:2504)
[  519.622965][   T12]  ? snapshot_read.cold (user.c:?)
[  519.622967][   T12]  ? ipv6_mc_down (net/ipv6/mcast.c:1157 net/ipv6/mcast.c:2820)
[  519.622971][   T12]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[  519.622974][   T12]  br_stp_disable_port (net/bridge/br_stp_if.c:106)
[  519.622976][   T12]  br_device_event (net/bridge/br.c:111)
[  519.622979][   T12]  ? packet_sendmsg_spkt (af_packet.c:?)
[  519.622981][   T12]  ? addrconf_notify (net/ipv6/addrconf.c:3812)
[  519.622984][   T12]  notifier_call_chain (kernel/notifier.c:85)
[  519.622987][   T12]  netif_close_many (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:1829)
[  519.622990][   T12]  ? __dev_close_many (net/core/dev.c:1804)
[  519.622992][   T12]  ? netif_close_many_and_unlock (net/core/dev.c:12411)
[  519.622994][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12487)
[  519.622996][   T12]  ? ops_undo_list (net/core/net_namespace.c:206 net/core/net_namespace.c:253)
[  519.622998][   T12]  ? worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[  519.623001][   T12]  ? kthread (kernel/kthread.c:436)
[  519.623002][   T12]  ? ret_from_fork (arch/x86/kernel/process.c:158)
[  519.623005][   T12]  ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
[  519.623008][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:419 (discriminator 3))
[  519.623009][   T12]  ? get_rps_cpu (net/core/dev.c:5240)
[  519.623012][   T12]  default_device_exit_batch (net/core/dev.c:12589 net/core/dev.c:13288)
[  519.623013][   T12]  ? __mutex_unlock_slowpath (./include/linux/preempt.h:500 (discriminator 1) kernel/locking/mutex.c:999 (discriminator 1))
[  519.623015][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  519.623017][   T12]  ? unregister_netdevice_queue (./include/linux/list.h:173)
[  519.623018][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[  519.623020][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[  519.623023][   T12]  ops_undo_list (net/core/net_namespace.c:206 net/core/net_namespace.c:253)
[  519.623025][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[  519.623027][   T12]  ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563)
[  519.623031][   T12]  cleanup_net (net/core/net_namespace.c:706)
[  519.623032][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[  519.623034][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  519.623036][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  519.623037][   T12]  process_one_work (kernel/workqueue.c:3387)
[  519.623040][   T12]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[  519.623043][   T12]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[  519.623044][   T12]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[  519.623047][   T12]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[  519.623050][   T12]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[  519.623052][   T12]  kthread (kernel/kthread.c:436)
[  519.623054][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[  519.623055][   T12]  ? kthread_affine_preferred (kernel/kthread.c:857)
[  519.623057][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[  519.623059][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[  519.623061][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[  519.623064][   T12]  ? kthread_affine_preferred (kernel/kthread.c:857)


Finger prints:
__fib6_clean_all:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print
__irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print
mark_lock_irq:mark_lock:mark_usage:__lock_acquire:_raw_spin_lock
__alloc_skb:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars