======================================
| [   10.352745][  T211] softirqs last disabled at (46783): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   10.352748][  T211] Preemption disabled at:
| [   10.352748][  T211] 0x0
| [   10.352758][  T211] Tainted: [W]=WARN
[   10.352759][  T211] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.352761][  T211] Call Trace:
[   10.352762][  T211]  <TASK>
[   10.352764][  T211]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   10.352771][  T211]  __might_resched.cold (kernel/sched/core.c:9234)
[   10.352775][  T211]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   10.352779][  T211]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   10.352784][  T211]  __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))
[   10.352786][  T211]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.352792][  T211]  ? 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)
[   10.352795][  T211]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.352799][  T211]  put_chars (drivers/char/virtio_console.c:1176)
[   10.352802][  T211]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   10.352803][  T211]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   10.352807][  T211]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   10.352820][  T211]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   10.352828][  T211]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   10.352830][  T211]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.352832][  T211]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.352837][  T211]  console_emit_next_record (kernel/printk/printk.c:3183)
[   10.352841][  T211]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   10.352843][  T211]  ? 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))
[   10.352846][  T211]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.352848][  T211]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.352852][  T211]  console_flush_one_record (kernel/printk/printk.c:3268)
[   10.352856][  T211]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   10.352858][  T211]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.352863][  T211]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   10.352866][  T211]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   10.352868][  T211]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.352870][  T211]  ? 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)
[   10.352874][  T211]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   10.352876][  T211]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   10.352878][  T211]  vprintk_emit (kernel/printk/printk.c:2479)
[   10.352882][  T211]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   10.352885][  T211]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.352888][  T211]  _printk (kernel/printk/printk.c:2504)
[   10.352892][  T211]  ? snapshot_read.cold (user.c:?)
[   10.352895][  T211]  ? 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)
[   10.352898][  T211]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   10.352902][  T211]  ? 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)
[   10.352905][  T211]  do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4))
[   10.352908][  T211]  ? exit_notify (kernel/exit.c:780)
[   10.352910][  T211]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   10.352913][  T211]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.352916][  T211]  do_group_exit (kernel/exit.c:1151)
[   10.352919][  T211]  __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160)
[   10.352921][  T211]  x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232)
[   10.352924][  T211]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   10.352928][  T211]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   10.352931][  T211]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.352933][  T211] RIP: 0033:0x7fe48015c1b8
[   10.352936][  T211] Code: Unable to access opcode bytes at 0x7fe48015c18e.

Code starting with the faulting instruction
===========================================
[   10.352937][  T211] RSP: 002b:00007ffecd7f0fe8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[   10.352939][  T211] RAX: ffffffffffffffda RBX: 00007fe48028cf88 RCX: 00007fe48015c1b8
[   10.352941][  T211] RDX: 00007fe47fea6fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000
[   10.352942][  T211] RBP: 00007ffecd7f1040 R08: 0000000000000000 R09: 0000000000008010
[   10.352943][  T211] R10: 00007ffecd7f0e00 R11: 0000000000000246 R12: 0000000000000001
[   10.352943][  T211] R13: 0000000000000000 R14: 00007fe48028b680 R15: 00007fe48028cfa0
| [   11.688039][  T291] softirqs last disabled at (37006): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   11.688042][  T291] Preemption disabled at:
| [   11.688042][  T291] vprintk_emit (kernel/printk/printk.c:2471)
| [   11.688050][  T291] Tainted: [W]=WARN
[   11.688051][  T291] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.688053][  T291] Call Trace:
[   11.688054][  T291]  <TASK>
[   11.688056][  T291]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   11.688062][  T291]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   11.688063][  T291]  __might_resched.cold (kernel/sched/core.c:9234)
[   11.688068][  T291]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   11.688072][  T291]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   11.688076][  T291]  __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))
[   11.688078][  T291]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.688084][  T291]  ? 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)
[   11.688087][  T291]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.688091][  T291]  put_chars (drivers/char/virtio_console.c:1176)
[   11.688093][  T291]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   11.688096][  T291]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   11.688101][  T291]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   11.688108][  T291]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   11.688111][  T291]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.688114][  T291]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.688118][  T291]  console_emit_next_record (kernel/printk/printk.c:3183)
[   11.688122][  T291]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   11.688123][  T291]  ? 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))
[   11.688127][  T291]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.688128][  T291]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.688132][  T291]  console_flush_one_record (kernel/printk/printk.c:3268)
[   11.688136][  T291]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   11.688138][  T291]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.688143][  T291]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   11.688146][  T291]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   11.688148][  T291]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.688150][  T291]  ? 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)
[   11.688153][  T291]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   11.688155][  T291]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   11.688158][  T291]  vprintk_emit (kernel/printk/printk.c:2479)
[   11.688161][  T291]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   11.688163][  T291]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.688164][  T291]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   11.688168][  T291]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   11.688172][  T291]  _printk (kernel/printk/printk.c:2504)
[   11.688175][  T291]  ? snapshot_read.cold (user.c:?)
[   11.688179][  T291]  ? br_multicast_flood (??:?)
[   11.688182][  T291]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   11.688183][  T291]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   11.688184][  T291]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   11.688189][  T291]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   11.688192][  T291]  br_init_port (net/bridge/br_stp_if.c:39)
[   11.688195][  T291]  new_nbp (net/bridge/br_if.c:449)
[   11.688198][  T291]  br_add_if (net/bridge/br_if.c:592)
[   11.688201][  T291]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   11.688204][  T291]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   11.688210][  T291]  do_set_master (net/core/rtnetlink.c:3071)
[   11.688214][  T291]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   11.688217][  T291]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   11.688221][  T291]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   11.688222][  T291]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   11.688224][  T291]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   11.688228][  T291]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   11.688230][  T291]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   11.688231][  T291]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   11.688234][  T291]  ? kasan_save_stack (mm/kasan/common.c:58)
[   11.688236][  T291]  ? kasan_save_stack (mm/kasan/common.c:57)
[   11.688237][  T291]  ? kasan_save_track (mm/kasan/common.c:78)
[   11.688238][  T291]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   11.688241][  T291]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.688242][  T291]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   11.688245][  T291]  ? ___sys_sendmsg (net/socket.c:2758)
[   11.688249][  T291]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.688251][  T291]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   11.688253][  T291]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.688255][  T291]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.688256][  T291]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.688257][  T291]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.688259][  T291]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   11.688261][  T291]  ? __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)
[   11.688263][  T291]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   11.688265][  T291]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   11.688268][  T291]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   11.688269][  T291]  ? nla_get_range_signed (lib/nlattr.c:270)
[   11.688274][  T291]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.688276][  T291]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   11.688281][  T291]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   11.688287][  T291]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.688289][  T291]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.688293][  T291]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.688295][  T291]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   11.688298][  T291]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.688299][  T291]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.688303][  T291]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.688305][  T291]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   11.688308][  T291]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.688309][  T291]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.688314][  T291]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.688316][  T291]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   11.688319][  T291]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   11.688323][  T291]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.688325][  T291]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   11.688332][  T291]  ? 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))
[   11.688334][  T291]  ? 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))
[   11.688338][  T291]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   11.688342][  T291]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   11.688345][  T291]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   11.688349][  T291]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   11.688353][  T291]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   11.688357][  T291]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.688358][  T291]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   11.688364][  T291]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   11.688367][  T291]  ____sys_sendmsg (net/socket.c:2713)
[   11.688369][  T291]  ? copy_msghdr_from_user (net/socket.c:2650)
[   11.688371][  T291]  ? sock_write_iter (net/socket.c:1269)
[   11.688373][  T291]  ? move_addr_to_kernel (net/socket.c:258)
[   11.688380][  T291]  ___sys_sendmsg (net/socket.c:2767)
[   11.688383][  T291]  ? copy_msghdr_from_user (net/socket.c:2619)
[   11.688399][  T291]  __sys_sendmsg (net/socket.c:2799)
[   11.688402][  T291]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   11.688408][  T291]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.688411][  T291]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   11.688414][  T291]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   11.688417][  T291]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.688419][  T291] RIP: 0033:0x7ff523d9c54e
[   11.688423][  T291] 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
[   11.688424][  T291] RSP: 002b:00007fffd0be6a00 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   11.688427][  T291] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007ff523d9c54e
[   11.688428][  T291] RDX: 0000000000000000 RSI: 00007fffd0be6ab0 RDI: 0000000000000005
[   11.688429][  T291] RBP: 00007fffd0be6a10 R08: 0000000000000000 R09: 0000000000000000
[   11.688430][  T291] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a918e12
[   11.688431][  T291] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fffd0be7170
| [   12.781692][  T312] softirqs last disabled at (5074): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   12.781695][  T312] Preemption disabled at:
| [   12.781695][  T312] vprintk_emit (kernel/printk/printk.c:2471)
| [   12.781703][  T312] Tainted: [W]=WARN
[   12.781705][  T312] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.781706][  T312] Call Trace:
[   12.781708][  T312]  <TASK>
[   12.781709][  T312]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   12.781715][  T312]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   12.781717][  T312]  __might_resched.cold (kernel/sched/core.c:9234)
[   12.781722][  T312]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   12.781726][  T312]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   12.781730][  T312]  __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))
[   12.781732][  T312]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.781738][  T312]  ? 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)
[   12.781741][  T312]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.781745][  T312]  put_chars (drivers/char/virtio_console.c:1176)
[   12.781747][  T312]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   12.781750][  T312]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   12.781753][  T312]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   12.781758][  T312]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   12.781762][  T312]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.781764][  T312]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.781768][  T312]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   12.781772][  T312]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.781774][  T312]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.781778][  T312]  console_emit_next_record (kernel/printk/printk.c:3183)
[   12.781782][  T312]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   12.781784][  T312]  ? 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))
[   12.781788][  T312]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.781789][  T312]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.781793][  T312]  console_flush_one_record (kernel/printk/printk.c:3268)
[   12.781798][  T312]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   12.781799][  T312]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.781805][  T312]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   12.781807][  T312]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   12.781809][  T312]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.781811][  T312]  ? 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)
[   12.781815][  T312]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   12.781816][  T312]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   12.781823][  T312]  vprintk_emit (kernel/printk/printk.c:2479)
[   12.781826][  T312]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   12.781829][  T312]  ? netlink_broadcast_filtered (net/netlink/af_netlink.c:1541)
[   12.781832][  T312]  ? kasan_save_stack (mm/kasan/common.c:58)
[   12.781835][  T312]  ? kasan_save_stack (mm/kasan/common.c:57)
[   12.781838][  T312]  _printk (kernel/printk/printk.c:2504)
[   12.781842][  T312]  ? snapshot_read.cold (user.c:?)
[   12.781843][  T312]  ? __sys_setsockopt (net/socket.c:2422)
[   12.781848][  T312]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   12.781852][  T312]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   12.781856][  T312]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   12.781859][  T312]  ? netdev_notice (net/core/dev.c:13194)
[   12.781860][  T312]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   12.781866][  T312]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.781868][  T312]  ? 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)
[   12.781871][  T312]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[   12.781875][  T312]  dev_set_allmulti (net/core/dev_api.c:315)
[   12.781878][  T312]  vif_add (net/ipv4/ipmr.c:900)
[   12.781881][  T312]  ? __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)
[   12.781883][  T312]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   12.781887][  T312]  ? ip_mr_output_finish.isra.0 (net/ipv4/ipmr.c:2310)
[   12.781890][  T312]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.781892][  T312]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   12.781897][  T312]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   12.781900][  T312]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   12.781904][  T312]  ip_mroute_setsockopt (net/ipv4/ipmr.c:1497 (discriminator 1))
[   12.781908][  T312]  ? ipmr_rtm_route (net/ipv4/ipmr.c:2973)
[   12.781912][  T312]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   12.781914][  T312]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.781918][  T312]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   12.781920][  T312]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   12.781923][  T312]  do_ip_setsockopt (net/ipv4/ip_sockglue.c:952)
[   12.781927][  T312]  ? ip_sock_set_tos (net/ipv4/ip_sockglue.c:609)
[   12.781930][  T312]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.781932][  T312]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   12.781934][  T312]  ? do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   12.781937][  T312]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.781939][  T312]  ? 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)
[   12.781941][  T312]  ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4427 (discriminator 2))
[   12.781943][  T312]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   12.781945][  T312]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:210 (discriminator 6) kernel/locking/spinlock.c:221 (discriminator 6))
[   12.781947][  T312]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   12.781950][  T312]  ip_setsockopt (net/ipv4/ip_sockglue.c:1421)
[   12.781953][  T312]  raw_setsockopt (net/ipv4/raw.c:851)
[   12.781956][  T312]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.781958][  T312]  ? raw_bind (net/ipv4/raw.c:733)
[   12.781963][  T312]  do_sock_setsockopt (net/socket.c:2397)
[   12.781966][  T312]  ? put_user_ifreq (./arch/x86/include/asm/compat.h:94 (discriminator 1))
[   12.781967][  T312]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   12.781970][  T312]  ? fd_install (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:971 (discriminator 2) fs/file.c:698 (discriminator 2))
[   12.781975][  T312]  ? fd_install (./include/linux/rcupdate.h:974 (discriminator 1) fs/file.c:698 (discriminator 1))
[   12.781979][  T312]  __sys_setsockopt (net/socket.c:2422)
[   12.781983][  T312]  __x64_sys_setsockopt (net/socket.c:2428 net/socket.c:2425 net/socket.c:2425)
[   12.781985][  T312]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   12.781989][  T312]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   12.781990][  T312]  ? do_syscall_64 (arch/x86/entry/syscall_64.c:81 (discriminator 44))
[   12.781992][  T312]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   12.781994][  T312]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   12.781996][  T312]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.781998][  T312] RIP: 0033:0x7efecd1002de
[   12.782002][  T312] 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
[   12.782004][  T312] RSP: 002b:00007fff18173d28 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
[   12.782007][  T312] RAX: ffffffffffffffda RBX: 0000560ea69e62c0 RCX: 00007efecd1002de
[   12.782008][  T312] RDX: 00000000000000ca RSI: 0000000000000000 RDI: 0000000000000007
[   12.782009][  T312] RBP: 00007fff18173de0 R08: 0000000000000010 R09: 0000000000000001
[   12.782010][  T312] R10: 00007fff18173d60 R11: 0000000000000246 R12: 0000560ece9bb0c4
[   12.782011][  T312] R13: 00007fff18173e30 R14: 0000560ece9bb0b0 R15: 0000000000000000
| [   27.096563][    C0] softirqs last disabled at (654207): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   27.096565][    C0] Preemption disabled at:
| [   27.096565][    C0] schedule_preempt_disabled (kernel/sched/core.c:7420)
| [   27.096576][    C0] Tainted: [W]=WARN
[   27.096577][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   27.096579][    C0] Call Trace:
[   27.096580][    C0]  <IRQ>
[   27.096582][    C0]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   27.096587][    C0]  ? schedule_preempt_disabled (kernel/sched/core.c:7420)
[   27.096589][    C0]  __might_resched.cold (kernel/sched/core.c:9234)
[   27.096593][    C0]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   27.096597][    C0]  ? __asan_memcpy (mm/kasan/shadow.c:106 (discriminator 1))
[   27.096600][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.096603][    C0]  __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))
[   27.096605][    C0]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   27.096608][    C0]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   27.096613][    C0]  ? 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)
[   27.096614][    C0]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   27.096617][    C0]  put_chars (drivers/char/virtio_console.c:1176)
[   27.096619][    C0]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   27.096620][    C0]  ? console_prepend_replay (kernel/printk/printk.c:3005)
[   27.096623][    C0]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   27.096628][    C0]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   27.096630][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.096631][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   27.096634][    C0]  console_emit_next_record (kernel/printk/printk.c:3183)
[   27.096636][    C0]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   27.096638][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.096639][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.096640][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   27.096642][    C0]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   27.096644][    C0]  console_flush_one_record (kernel/printk/printk.c:3268)
[   27.096646][    C0]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   27.096649][    C0]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   27.096651][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   27.096652][    C0]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   27.096654][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.096655][    C0]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   27.096657][    C0]  ? 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)
[   27.096658][    C0]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   27.096660][    C0]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   27.096662][    C0]  vprintk_emit (kernel/printk/printk.c:2479)
[   27.096664][    C0]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   27.096665][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.096666][    C0]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   27.096668][    C0]  ? x86_64_start_kernel (./arch/x86/include/asm/page_64.h:103 ./arch/x86/include/asm/page_64.h:114 arch/x86/kernel/head64.c:255)
[   27.096672][    C0]  _printk (kernel/printk/printk.c:2504)
[   27.096675][    C0]  ? snapshot_read.cold (user.c:?)
[   27.096677][    C0]  ? arch_stack_walk (arch/x86/kernel/stacktrace.c:25)
[   27.096680][    C0]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   27.096682][    C0]  ? nbcon_cpu_emergency_enter (./include/linux/instrumented.h:112 ./include/linux/atomic/atomic-instrumented.h:435 kernel/printk/nbcon.c:1723)
[   27.096683][    C0]  print_irq_inversion_bug.part.0 (kernel/locking/lockdep.c:4097 (discriminator 1))
[   27.096686][    C0]  mark_lock_irq (kernel/locking/lockdep.c:4095 kernel/locking/lockdep.c:4174 kernel/locking/lockdep.c:4310)
[   27.096689][    C0]  mark_lock (kernel/locking/lockdep.c:4769)
[   27.096691][    C0]  mark_usage (kernel/locking/lockdep.c:4658)
[   27.096692][    C0]  __lock_acquire (kernel/locking/lockdep.c:5208)
[   27.096695][    C0]  lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   27.096696][    C0]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88)
[   27.096700][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.096701][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   27.096702][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54)
[   27.096704][    C0]  _raw_spin_lock (./include/linux/spinlock_api_smp.h:190 (discriminator 1) kernel/locking/spinlock.c:173 (discriminator 1))
[   27.096705][    C0]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88)
[   27.096706][    C0]  br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88)
[   27.096708][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54)
[   27.096709][    C0]  call_timer_fn (kernel/time/timer.c:1748)
[   27.096713][    C0]  ? detach_if_pending (./include/linux/list.h:1159)
[   27.096714][    C0]  ? debug_object_active_state (lib/debugobjects.c:1122)
[   27.096718][    C0]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   27.096719][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   27.096721][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.096723][    C0]  __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2374)
[   27.096725][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54)
[   27.096727][    C0]  ? __bpf_trace_itimer_expire (./include/trace/events/timer.h:407)
[   27.096728][    C0]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   27.096731][    C0]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   27.096733][    C0]  run_timer_softirq (kernel/time/timer.c:2386 kernel/time/timer.c:2395 kernel/time/timer.c:2403)
[   27.096735][    C0]  ? __run_timers (./include/trace/events/timer.h:138 (discriminator 19))
[   27.096737][    C0]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   27.096740][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.096741][    C0]  handle_softirqs (kernel/softirq.c:645)
[   27.096743][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   27.096745][    C0]  ? _local_bh_enable (kernel/softirq.c:428 (discriminator 1))
[   27.096747][    C0]  __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
[   27.096748][    C0]  irq_exit_rcu (kernel/softirq.c:784)
[   27.096750][    C0]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1062 (discriminator 37) arch/x86/kernel/apic/apic.c:1062 (discriminator 37))
[   27.096752][    C0]  </IRQ>
[   27.096753][    C0]  <TASK>
[   27.096753][    C0]  ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4427 (discriminator 2))
[   27.096755][    C0]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:674)
[   27.096758][    C0] RIP: 0010:pv_native_safe_halt (./arch/x86/include/asm/irqflags.h:48 arch/x86/kernel/paravirt.c:63)
[   27.096760][    C0] 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
[   27.096762][    C0] RSP: 0018:ffffffff8b607cf8 EFLAGS: 00000296
[   27.096765][    C0] RAX: 000000000009fb7d RBX: ffffffff8b630600 RCX: ffffffff87d06247
[   27.096766][    C0] RDX: ffffffff8b630600 RSI: ffffffff8af11011 RDI: ffffffff8a8949e0
[   27.096767][    C0] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[   27.096768][    C0] R10: 0000000000000000 R11: 0000000000000001 R12: 1ffffffff16c0fa2
[   27.096768][    C0] R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000014770
[   27.096770][    C0]  ? cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   27.096773][    C0]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   27.096775][    C0]  default_idle (./arch/x86/include/asm/paravirt.h:62 arch/x86/kernel/process.c:768)
[   27.096776][    C0]  default_idle_call (kernel/sched/idle.c:122)
[   27.096778][    C0]  cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   27.096780][    C0]  ? arch_cpu_idle_exit+0x40/0x40
[   27.096781][    C0]  ? mark_tsc_async_resets (arch/x86/kernel/tsc_sync.c:49)
[   27.096784][    C0]  ? kasan_check_range (mm/kasan/generic.c:199)
[   27.096785][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.096787][    C0]  do_idle (kernel/sched/idle.c:355)
[   27.096788][    C0]  cpu_startup_entry (kernel/sched/idle.c:454)
[   27.096790][    C0]  rest_init (init/main.c:727)
[   27.096791][    C0]  ? __cpuidle_text_end (??:?)
[   27.096794][    C0]  ? rest_init (init/main.c:727)
[   27.096795][    C0]  ? acpi_hw_set_mode (drivers/acpi/acpica/hwacpi.c:72 (discriminator 1))
[   27.096799][    C0]  ? cpus_read_unlock (./include/linux/percpu-rwsem.h:125 (discriminator 1) kernel/cpu.c:502 (discriminator 1))
[   27.096801][    C0]  ? acpi_enable (drivers/acpi/acpica/evxfevnt.c:47)
[   27.096803][    C0]  start_kernel (init/main.c:1185)
[   27.096805][    C0]  x86_64_start_reservations (arch/x86/kernel/head64.c:310)
[   27.096807][    C0]  x86_64_start_kernel (arch/x86/kernel/head64.c:291)
[   27.096809][    C0]  common_startup_64 (arch/x86/kernel/head_64.S:418)
| [   27.159103][    C0]
| [   27.159178][    C0]
| [   27.159178][    C0] stack backtrace:
| [   27.159362][    C0] Tainted: [W]=WARN
[   27.159363][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   27.159364][    C0] Call Trace:
[   27.159365][    C0]  <IRQ>
[   27.159366][    C0]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   27.159371][    C0]  print_irq_inversion_bug.part.0.cold (kernel/locking/lockdep.c:4141)
[   27.159373][    C0]  mark_lock_irq (kernel/locking/lockdep.c:4095 kernel/locking/lockdep.c:4174 kernel/locking/lockdep.c:4310)
[   27.159376][    C0]  mark_lock (kernel/locking/lockdep.c:4769)
[   27.159378][    C0]  mark_usage (kernel/locking/lockdep.c:4658)
[   27.159380][    C0]  __lock_acquire (kernel/locking/lockdep.c:5208)
[   27.159383][    C0]  lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   27.159384][    C0]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88)
[   27.159386][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.159388][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   27.159390][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54)
[   27.159391][    C0]  _raw_spin_lock (./include/linux/spinlock_api_smp.h:190 (discriminator 1) kernel/locking/spinlock.c:173 (discriminator 1))
[   27.159393][    C0]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88)
[   27.159394][    C0]  br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88)
[   27.159396][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54)
[   27.159397][    C0]  call_timer_fn (kernel/time/timer.c:1748)
[   27.159399][    C0]  ? detach_if_pending (./include/linux/list.h:1159)
[   27.159401][    C0]  ? debug_object_active_state (lib/debugobjects.c:1122)
[   27.159404][    C0]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   27.159406][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   27.159408][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.159409][    C0]  __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2374)
[   27.159411][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54)
[   27.159413][    C0]  ? __bpf_trace_itimer_expire (./include/trace/events/timer.h:407)
[   27.159415][    C0]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   27.159418][    C0]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   27.159420][    C0]  run_timer_softirq (kernel/time/timer.c:2386 kernel/time/timer.c:2395 kernel/time/timer.c:2403)
[   27.159423][    C0]  ? __run_timers (./include/trace/events/timer.h:138 (discriminator 19))
[   27.159424][    C0]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   27.159427][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.159428][    C0]  handle_softirqs (kernel/softirq.c:645)
[   27.159430][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   27.159432][    C0]  ? _local_bh_enable (kernel/softirq.c:428 (discriminator 1))
[   27.159434][    C0]  __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
[   27.159436][    C0]  irq_exit_rcu (kernel/softirq.c:784)
[   27.159437][    C0]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1062 (discriminator 37) arch/x86/kernel/apic/apic.c:1062 (discriminator 37))
[   27.159439][    C0]  </IRQ>
[   27.159440][    C0]  <TASK>
[   27.159440][    C0]  ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4427 (discriminator 2))
[   27.159442][    C0]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:674)
[   27.159444][    C0] RIP: 0010:pv_native_safe_halt (./arch/x86/include/asm/irqflags.h:48 arch/x86/kernel/paravirt.c:63)
[   27.159446][    C0] 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
[   27.159448][    C0] RSP: 0018:ffffffff8b607cf8 EFLAGS: 00000296
[   27.159450][    C0] RAX: 000000000009fb7d RBX: ffffffff8b630600 RCX: ffffffff87d06247
[   27.159452][    C0] RDX: ffffffff8b630600 RSI: ffffffff8af11011 RDI: ffffffff8a8949e0
[   27.159452][    C0] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[   27.159453][    C0] R10: 0000000000000000 R11: 0000000000000001 R12: 1ffffffff16c0fa2
[   27.159454][    C0] R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000014770
[   27.159456][    C0]  ? cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   27.159458][    C0]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   27.159460][    C0]  default_idle (./arch/x86/include/asm/paravirt.h:62 arch/x86/kernel/process.c:768)
[   27.159461][    C0]  default_idle_call (kernel/sched/idle.c:122)
[   27.159463][    C0]  cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   27.159464][    C0]  ? arch_cpu_idle_exit+0x40/0x40
[   27.159466][    C0]  ? mark_tsc_async_resets (arch/x86/kernel/tsc_sync.c:49)
[   27.159468][    C0]  ? kasan_check_range (mm/kasan/generic.c:199)
[   27.159471][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.159472][    C0]  do_idle (kernel/sched/idle.c:355)
[   27.159474][    C0]  cpu_startup_entry (kernel/sched/idle.c:454)
[   27.159476][    C0]  rest_init (init/main.c:727)
[   27.159477][    C0]  ? __cpuidle_text_end (??:?)
[   27.159480][    C0]  ? rest_init (init/main.c:727)
[   27.159482][    C0]  ? acpi_hw_set_mode (drivers/acpi/acpica/hwacpi.c:72 (discriminator 1))
[   27.159485][    C0]  ? cpus_read_unlock (./include/linux/percpu-rwsem.h:125 (discriminator 1) kernel/cpu.c:502 (discriminator 1))
[   27.159487][    C0]  ? acpi_enable (drivers/acpi/acpica/evxfevnt.c:47)
[   27.159489][    C0]  start_kernel (init/main.c:1185)
[   27.159491][    C0]  x86_64_start_reservations (arch/x86/kernel/head64.c:310)
[   27.159492][    C0]  x86_64_start_kernel (arch/x86/kernel/head64.c:291)
[   27.159494][    C0]  common_startup_64 (arch/x86/kernel/head_64.S:418)
| [  488.662095][   T12] softirqs last disabled at (18108): __fib6_clean_all (./include/linux/spinlock.h:353 net/ipv6/ip6_fib.c:2323)
| [  488.662097][   T12] Preemption disabled at:
| [  488.662098][   T12] 0x0
| [  488.662107][   T12] Tainted: [W]=WARN
[  488.662108][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  488.662110][   T12] Workqueue: netns cleanup_net
[  488.662115][   T12] Call Trace:
[  488.662117][   T12]  <TASK>
[  488.662119][   T12]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[  488.662125][   T12]  __might_resched.cold (kernel/sched/core.c:9234)
[  488.662128][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[  488.662132][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  488.662135][   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))
[  488.662138][   T12]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[  488.662141][   T12]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[  488.662145][   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)
[  488.662147][   T12]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[  488.662149][   T12]  put_chars (drivers/char/virtio_console.c:1176)
[  488.662151][   T12]  ? __send_to_port (drivers/char/virtio_console.c:654)
[  488.662152][   T12]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[  488.662155][   T12]  ? console_prepend_replay (kernel/printk/printk.c:3005)
[  488.662157][   T12]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[  488.662162][   T12]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[  488.662163][   T12]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[  488.662165][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  488.662168][   T12]  console_emit_next_record (kernel/printk/printk.c:3183)
[  488.662170][   T12]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[  488.662172][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  488.662173][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  488.662174][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  488.662175][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  488.662177][   T12]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[  488.662179][   T12]  console_flush_one_record (kernel/printk/printk.c:3268)
[  488.662181][   T12]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[  488.662184][   T12]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[  488.662185][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  488.662187][   T12]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[  488.662188][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  488.662189][   T12]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[  488.662191][   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)
[  488.662192][   T12]  ? __rcu_read_lock (kernel/rcu/tree_plugin.h:391 (discriminator 6))
[  488.662194][   T12]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[  488.662196][   T12]  ? vprintk_emit (kernel/printk/printk.c:2478)
[  488.662197][   T12]  vprintk_emit (kernel/printk/printk.c:2479)
[  488.662199][   T12]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[  488.662200][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  488.662201][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[  488.662205][   T12]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:78)
[  488.662206][   T12]  _printk (kernel/printk/printk.c:2504)
[  488.662209][   T12]  ? snapshot_read.cold (user.c:?)
[  488.662211][   T12]  ? ipv6_mc_down (net/ipv6/mcast.c:1157 net/ipv6/mcast.c:2820)
[  488.662214][   T12]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[  488.662218][   T12]  br_stp_disable_port (net/bridge/br_stp_if.c:106)
[  488.662220][   T12]  br_device_event (net/bridge/br.c:111)
[  488.662222][   T12]  ? packet_sendmsg_spkt (af_packet.c:?)
[  488.662224][   T12]  ? addrconf_notify (net/ipv6/addrconf.c:3812)
[  488.662227][   T12]  notifier_call_chain (kernel/notifier.c:85)
[  488.662230][   T12]  netif_close_many (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:1829)
[  488.662233][   T12]  ? __dev_close_many (net/core/dev.c:1804)
[  488.662235][   T12]  ? netif_close_many_and_unlock (net/core/dev.c:12411)
[  488.662237][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12487)
[  488.662238][   T12]  ? ops_undo_list (net/core/net_namespace.c:206 net/core/net_namespace.c:253)
[  488.662240][   T12]  ? worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[  488.662243][   T12]  ? kthread (kernel/kthread.c:436)
[  488.662245][   T12]  ? ret_from_fork (arch/x86/kernel/process.c:158)
[  488.662247][   T12]  ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
[  488.662250][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:419 (discriminator 3))
[  488.662251][   T12]  ? get_rps_cpu (net/core/dev.c:5240)
[  488.662254][   T12]  default_device_exit_batch (net/core/dev.c:12589 net/core/dev.c:13288)
[  488.662255][   T12]  ? __mutex_unlock_slowpath (./include/linux/preempt.h:500 (discriminator 1) kernel/locking/mutex.c:999 (discriminator 1))
[  488.662256][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  488.662258][   T12]  ? unregister_netdevice_queue (./include/linux/list.h:173)
[  488.662259][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[  488.662261][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[  488.662264][   T12]  ops_undo_list (net/core/net_namespace.c:206 net/core/net_namespace.c:253)
[  488.662266][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[  488.662268][   T12]  ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563)
[  488.662271][   T12]  cleanup_net (net/core/net_namespace.c:706)
[  488.662272][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[  488.662274][   T12]  ? update_load_avg (kernel/sched/fair.c:5864)
[  488.662276][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  488.662278][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  488.662279][   T12]  process_one_work (kernel/workqueue.c:3387)
[  488.662282][   T12]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[  488.662284][   T12]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[  488.662286][   T12]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[  488.662288][   T12]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[  488.662291][   T12]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[  488.662293][   T12]  kthread (kernel/kthread.c:436)
[  488.662294][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[  488.662296][   T12]  ? kthread_affine_preferred (kernel/kthread.c:857)
[  488.662298][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[  488.662299][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[  488.662301][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[  488.662305][   T12]  ? kthread_affine_preferred (kernel/kthread.c:857)


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