======================================
| [   11.079143][  T208] softirqs last disabled at (33931): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   11.079145][  T208] Preemption disabled at:
| [   11.079146][  T208] 0x0
| [   11.079156][  T208] Tainted: [W]=WARN
[   11.079157][  T208] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.079159][  T208] Call Trace:
[   11.079160][  T208]  <TASK>
[   11.079161][  T208]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   11.079168][  T208]  __might_resched.cold (kernel/sched/core.c:9234)
[   11.079172][  T208]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   11.079177][  T208]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   11.079182][  T208]  __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))
[   11.079184][  T208]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.079190][  T208]  ? 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)
[   11.079192][  T208]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.079195][  T208]  put_chars (drivers/char/virtio_console.c:1176)
[   11.079198][  T208]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   11.079199][  T208]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   11.079204][  T208]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   11.079209][  T208]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   11.079215][  T208]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   11.079217][  T208]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.079219][  T208]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.079223][  T208]  console_emit_next_record (kernel/printk/printk.c:3183)
[   11.079227][  T208]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   11.079229][  T208]  ? 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))
[   11.079232][  T208]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.079234][  T208]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.079238][  T208]  console_flush_one_record (kernel/printk/printk.c:3268)
[   11.079242][  T208]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   11.079244][  T208]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.079249][  T208]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   11.079252][  T208]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   11.079253][  T208]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.079256][  T208]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   11.079259][  T208]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   11.079261][  T208]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   11.079264][  T208]  vprintk_emit (kernel/printk/printk.c:2479)
[   11.079268][  T208]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   11.079271][  T208]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.079275][  T208]  _printk (kernel/printk/printk.c:2504)
[   11.079281][  T208]  ? snapshot_read.cold (user.c:?)
[   11.079283][  T208]  ? do_raw_spin_lock (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:1301 ./include/asm-generic/qspinlock.h:112 kernel/locking/spinlock_debug.c:116)
[   11.079286][  T208]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   11.079290][  T208]  ? do_raw_spin_lock (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:1301 ./include/asm-generic/qspinlock.h:112 kernel/locking/spinlock_debug.c:116)
[   11.079292][  T208]  do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4))
[   11.079296][  T208]  ? exit_notify (kernel/exit.c:780)
[   11.079298][  T208]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.079301][  T208]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.079305][  T208]  do_group_exit (kernel/exit.c:1151)
[   11.079307][  T208]  __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160)
[   11.079309][  T208]  x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232)
[   11.079311][  T208]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   11.079314][  T208]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   11.079317][  T208]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.079319][  T208] RIP: 0033:0x7ff348fc91b8
[   11.079322][  T208] Code: Unable to access opcode bytes at 0x7ff348fc918e.

Code starting with the faulting instruction
===========================================
[   11.079323][  T208] RSP: 002b:00007ffd424565d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[   11.079326][  T208] RAX: ffffffffffffffda RBX: 00007ff3490f9f88 RCX: 00007ff348fc91b8
[   11.079327][  T208] RDX: 00007ff348d13fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000
[   11.079328][  T208] RBP: 00007ffd42456630 R08: 0000000000000000 R09: 0000000000008010
[   11.079329][  T208] R10: 00007ffd424563f0 R11: 0000000000000246 R12: 0000000000000001
[   11.079330][  T208] R13: 0000000000000000 R14: 00007ff3490f8680 R15: 00007ff3490f9fa0
| [   13.632694][  T284] softirqs last disabled at (20000): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   13.632697][  T284] Preemption disabled at:
| [   13.632698][  T284] vprintk_emit (kernel/printk/printk.c:2471)
| [   13.632707][  T284] Tainted: [W]=WARN
[   13.632708][  T284] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.632710][  T284] Call Trace:
[   13.632712][  T284]  <TASK>
[   13.632713][  T284]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   13.632719][  T284]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   13.632721][  T284]  __might_resched.cold (kernel/sched/core.c:9234)
[   13.632726][  T284]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   13.632730][  T284]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   13.632735][  T284]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   13.632737][  T284]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   13.632743][  T284]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   13.632745][  T284]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   13.632749][  T284]  put_chars (drivers/char/virtio_console.c:1176)
[   13.632751][  T284]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   13.632756][  T284]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   13.632759][  T284]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   13.632762][  T284]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   13.632764][  T284]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.632766][  T284]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.632770][  T284]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   13.632772][  T284]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   13.632775][  T284]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.632779][  T284]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   13.632783][  T284]  console_emit_next_record (kernel/printk/printk.c:3183)
[   13.632786][  T284]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   13.632788][  T284]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   13.632791][  T284]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.632794][  T284]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   13.632798][  T284]  console_flush_one_record (kernel/printk/printk.c:3268)
[   13.632802][  T284]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   13.632803][  T284]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.632809][  T284]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   13.632812][  T284]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   13.632813][  T284]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.632816][  T284]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   13.632819][  T284]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   13.632821][  T284]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   13.632824][  T284]  vprintk_emit (kernel/printk/printk.c:2479)
[   13.632829][  T284]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   13.632831][  T284]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   13.632833][  T284]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   13.632837][  T284]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   13.632841][  T284]  _printk (kernel/printk/printk.c:2504)
[   13.632844][  T284]  ? snapshot_read.cold (user.c:?)
[   13.632848][  T284]  ? br_multicast_flood (??:?) bridge
[   13.632861][  T284]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   13.632862][  T284]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   13.632864][  T284]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   13.632868][  T284] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   13.632878][  T284] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   13.632887][  T284] new_nbp (net/bridge/br_if.c:449) bridge
[   13.632897][  T284] br_add_if (net/bridge/br_if.c:592) bridge
[   13.632911][  T284]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   13.632915][  T284]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   13.632918][  T284]  ? __kernel_text_address (kernel/extable.c:79)
[   13.632921][  T284]  do_set_master (net/core/rtnetlink.c:3071)
[   13.632926][  T284]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   13.632929][  T284]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   13.632932][  T284]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   13.632934][  T284]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   13.632936][  T284]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   13.632940][  T284]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   13.632943][  T284]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   13.632944][  T284]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   13.632947][  T284]  ? kasan_save_stack (mm/kasan/common.c:58)
[   13.632950][  T284]  ? kasan_save_stack (mm/kasan/common.c:57)
[   13.632952][  T284]  ? kasan_save_track (mm/kasan/common.c:78)
[   13.632954][  T284]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.632956][  T284]  ? netlink_seq_next (net/netlink/af_netlink.c:2684)
[   13.632959][  T284]  ? ___sys_sendmsg (net/socket.c:2757)
[   13.632964][  T284]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   13.632965][  T284]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   13.632968][  T284]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.632970][  T284]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   13.632972][  T284]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.632974][  T284]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.632976][  T284]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   13.632980][  T284]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   13.632981][  T284]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   13.632984][  T284]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   13.632987][  T284]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   13.632989][  T284]  ? nla_get_range_signed (lib/nlattr.c:270)
[   13.632993][  T284]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   13.632999][  T284]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   13.633004][  T284]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   13.633006][  T284]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.633010][  T284]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   13.633012][  T284]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   13.633014][  T284]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   13.633016][  T284]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   13.633019][  T284]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   13.633021][  T284]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   13.633024][  T284]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   13.633026][  T284]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.633030][  T284]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   13.633032][  T284]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   13.633035][  T284]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   13.633037][  T284]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   13.633040][  T284]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   13.633046][  T284]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   13.633047][  T284]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   13.633051][  T284]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   13.633055][  T284]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   13.633058][  T284]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.633062][  T284]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   13.633065][  T284]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   13.633069][  T284]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   13.633075][  T284]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   13.633077][  T284]  ? copy_msghdr_from_user (net/socket.c:2650)
[   13.633079][  T284]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   13.633081][  T284]  ? move_addr_to_kernel (net/socket.c:258)
[   13.633088][  T284]  ___sys_sendmsg (net/socket.c:2767)
[   13.633091][  T284]  ? copy_msghdr_from_user (net/socket.c:2619)
[   13.633106][  T284]  __sys_sendmsg (net/socket.c:2799)
[   13.633109][  T284]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   13.633115][  T284]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.633119][  T284]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   13.633121][  T284]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   13.633124][  T284]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   13.633127][  T284] RIP: 0033:0x7fea0b91954e
[   13.633130][  T284] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   13.633132][  T284] RSP: 002b:00007ffe38e8b7d0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   13.633135][  T284] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fea0b91954e
[   13.633136][  T284] RDX: 0000000000000000 RSI: 00007ffe38e8b880 RDI: 0000000000000005
[   13.633137][  T284] RBP: 00007ffe38e8b7e0 R08: 0000000000000000 R09: 0000000000000000
[   13.633138][  T284] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91b677
[   13.633139][  T284] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffe38e8bf40
| [   15.778989][  T346] softirqs last disabled at (11642): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   15.778992][  T346] Preemption disabled at:
| [   15.778992][  T346] vprintk_emit (kernel/printk/printk.c:2471)
| [   15.779002][  T346] Tainted: [W]=WARN
[   15.779003][  T346] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.779005][  T346] Call Trace:
[   15.779007][  T346]  <TASK>
[   15.779008][  T346]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   15.779014][  T346]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   15.779016][  T346]  __might_resched.cold (kernel/sched/core.c:9234)
[   15.779021][  T346]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   15.779025][  T346]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   15.779030][  T346]  __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))
[   15.779032][  T346]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   15.779038][  T346]  ? 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)
[   15.779041][  T346]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   15.779044][  T346]  put_chars (drivers/char/virtio_console.c:1176)
[   15.779046][  T346]  ? prb_final_commit (kernel/printk/printk_ringbuffer.c:1842)
[   15.779048][  T346]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   15.779051][  T346]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   15.779056][  T346]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   15.779058][  T346]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   15.779062][  T346]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   15.779065][  T346]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   15.779067][  T346]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.779068][  T346]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.779072][  T346]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   15.779074][  T346]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   15.779078][  T346]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.779080][  T346]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   15.779084][  T346]  console_emit_next_record (kernel/printk/printk.c:3183)
[   15.779088][  T346]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   15.779090][  T346]  ? 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))
[   15.779093][  T346]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.779096][  T346]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   15.779100][  T346]  console_flush_one_record (kernel/printk/printk.c:3268)
[   15.779104][  T346]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   15.779106][  T346]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.779111][  T346]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   15.779114][  T346]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   15.779116][  T346]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.779118][  T346]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   15.779122][  T346]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   15.779124][  T346]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   15.779127][  T346]  vprintk_emit (kernel/printk/printk.c:2479)
[   15.779132][  T346]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   15.779135][  T346]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   15.779137][  T346]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   15.779141][  T346]  _printk (kernel/printk/printk.c:2504)
[   15.779145][  T346]  ? snapshot_read.cold (user.c:?)
[   15.779149][  T346]  ? br_multicast_flood (??:?) bridge
[   15.779162][  T346]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   15.779163][  T346]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   15.779164][  T346]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   15.779169][  T346] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   15.779179][  T346] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   15.779188][  T346] new_nbp (net/bridge/br_if.c:449) bridge
[   15.779198][  T346] br_add_if (net/bridge/br_if.c:592) bridge
[   15.779205][  T346]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   15.779209][  T346]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   15.779212][  T346]  ? __kernel_text_address (kernel/extable.c:79)
[   15.779216][  T346]  do_set_master (net/core/rtnetlink.c:3071)
[   15.779220][  T346]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   15.779223][  T346]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   15.779227][  T346]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   15.779228][  T346]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   15.779230][  T346]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   15.779233][  T346]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   15.779236][  T346]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   15.779238][  T346]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   15.779240][  T346]  ? kasan_save_stack (mm/kasan/common.c:58)
[   15.779243][  T346]  ? kasan_save_stack (mm/kasan/common.c:57)
[   15.779245][  T346]  ? kasan_save_track (mm/kasan/common.c:78)
[   15.779248][  T346]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.779250][  T346]  ? netlink_seq_next (net/netlink/af_netlink.c:2684)
[   15.779253][  T346]  ? ___sys_sendmsg (net/socket.c:2757)
[   15.779257][  T346]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   15.779259][  T346]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   15.779262][  T346]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.779264][  T346]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   15.779266][  T346]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.779268][  T346]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.779270][  T346]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   15.779274][  T346]  ? __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)
[   15.779281][  T346]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   15.779283][  T346]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   15.779287][  T346]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   15.779288][  T346]  ? nla_get_range_signed (lib/nlattr.c:270)
[   15.779293][  T346]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   15.779299][  T346]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   15.779304][  T346]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   15.779306][  T346]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.779310][  T346]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   15.779312][  T346]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   15.779314][  T346]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   15.779316][  T346]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   15.779319][  T346]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   15.779322][  T346]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   15.779325][  T346]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   15.779326][  T346]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.779330][  T346]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   15.779332][  T346]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   15.779336][  T346]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   15.779337][  T346]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   15.779340][  T346]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   15.779346][  T346]  ? 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))
[   15.779348][  T346]  ? 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))
[   15.779352][  T346]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   15.779356][  T346]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   15.779359][  T346]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.779363][  T346]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   15.779366][  T346]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   15.779370][  T346]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   15.779375][  T346]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   15.779378][  T346]  ? copy_msghdr_from_user (net/socket.c:2650)
[   15.779380][  T346]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   15.779382][  T346]  ? move_addr_to_kernel (net/socket.c:258)
[   15.779389][  T346]  ___sys_sendmsg (net/socket.c:2767)
[   15.779392][  T346]  ? copy_msghdr_from_user (net/socket.c:2619)
[   15.779407][  T346]  __sys_sendmsg (net/socket.c:2799)
[   15.779410][  T346]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   15.779417][  T346]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.779420][  T346]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   15.779423][  T346]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   15.779426][  T346]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   15.779428][  T346] RIP: 0033:0x7f93d06aa54e
[   15.779432][  T346] 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
[   15.779434][  T346] RSP: 002b:00007ffcaa4cd040 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   15.779437][  T346] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f93d06aa54e
[   15.779438][  T346] RDX: 0000000000000000 RSI: 00007ffcaa4cd0f0 RDI: 0000000000000005
[   15.779439][  T346] RBP: 00007ffcaa4cd050 R08: 0000000000000000 R09: 0000000000000000
[   15.779440][  T346] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91b679
[   15.779441][  T346] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffcaa4cd7b0
| [   17.499486][  T400] softirqs last disabled at (14530): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   17.499488][  T400] Preemption disabled at:
| [   17.499489][  T400] vprintk_emit (kernel/printk/printk.c:2471)
| [   17.499498][  T400] Tainted: [W]=WARN
[   17.499499][  T400] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   17.499501][  T400] Call Trace:
[   17.499503][  T400]  <TASK>
[   17.499505][  T400]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   17.499510][  T400]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   17.499512][  T400]  __might_resched.cold (kernel/sched/core.c:9234)
[   17.499517][  T400]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   17.499521][  T400]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   17.499526][  T400]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   17.499529][  T400]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   17.499535][  T400]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   17.499538][  T400]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   17.499541][  T400]  put_chars (drivers/char/virtio_console.c:1176)
[   17.499543][  T400]  ? prb_final_commit (kernel/printk/printk_ringbuffer.c:1842)
[   17.499545][  T400]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   17.499548][  T400]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   17.499552][  T400]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   17.499555][  T400]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   17.499558][  T400]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   17.499562][  T400]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   17.499563][  T400]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   17.499565][  T400]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   17.499569][  T400]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   17.499571][  T400]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   17.499574][  T400]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.499577][  T400]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   17.499581][  T400]  console_emit_next_record (kernel/printk/printk.c:3183)
[   17.499585][  T400]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   17.499586][  T400]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   17.499590][  T400]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.499592][  T400]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   17.499596][  T400]  console_flush_one_record (kernel/printk/printk.c:3268)
[   17.499600][  T400]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   17.499602][  T400]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   17.499607][  T400]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   17.499610][  T400]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   17.499612][  T400]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.499614][  T400]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   17.499618][  T400]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   17.499620][  T400]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   17.499623][  T400]  vprintk_emit (kernel/printk/printk.c:2479)
[   17.499628][  T400]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   17.499630][  T400]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   17.499633][  T400]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   17.499637][  T400]  _printk (kernel/printk/printk.c:2504)
[   17.499640][  T400]  ? snapshot_read.cold (user.c:?)
[   17.499644][  T400]  ? br_multicast_flood (??:?) bridge
[   17.499657][  T400]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   17.499659][  T400]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   17.499660][  T400]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   17.499664][  T400] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   17.499675][  T400] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   17.499684][  T400] new_nbp (net/bridge/br_if.c:449) bridge
[   17.499693][  T400] br_add_if (net/bridge/br_if.c:592) bridge
[   17.499700][  T400]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   17.499705][  T400]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   17.499707][  T400]  ? __kernel_text_address (kernel/extable.c:79)
[   17.499711][  T400]  do_set_master (net/core/rtnetlink.c:3071)
[   17.499716][  T400]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   17.499719][  T400]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   17.499722][  T400]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   17.499723][  T400]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   17.499725][  T400]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   17.499729][  T400]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   17.499731][  T400]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   17.499733][  T400]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   17.499736][  T400]  ? kasan_save_stack (mm/kasan/common.c:58)
[   17.499739][  T400]  ? kasan_save_stack (mm/kasan/common.c:57)
[   17.499740][  T400]  ? kasan_save_track (mm/kasan/common.c:78)
[   17.499743][  T400]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   17.499745][  T400]  ? netlink_seq_next (net/netlink/af_netlink.c:2684)
[   17.499748][  T400]  ? ___sys_sendmsg (net/socket.c:2757)
[   17.499752][  T400]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   17.499754][  T400]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   17.499757][  T400]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.499759][  T400]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   17.499761][  T400]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.499762][  T400]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.499765][  T400]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   17.499768][  T400]  ? __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)
[   17.499771][  T400]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   17.499773][  T400]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   17.499777][  T400]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   17.499778][  T400]  ? nla_get_range_signed (lib/nlattr.c:270)
[   17.499783][  T400]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   17.499789][  T400]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   17.499794][  T400]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   17.499796][  T400]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   17.499800][  T400]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   17.499802][  T400]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   17.499804][  T400]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   17.499806][  T400]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   17.499810][  T400]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   17.499812][  T400]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   17.499815][  T400]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   17.499816][  T400]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   17.499821][  T400]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   17.499823][  T400]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   17.499826][  T400]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   17.499828][  T400]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   17.499831][  T400]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   17.499837][  T400]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   17.499839][  T400]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   17.499843][  T400]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   17.499847][  T400]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   17.499850][  T400]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   17.499854][  T400]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   17.499857][  T400]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   17.499861][  T400]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   17.499867][  T400]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   17.499869][  T400]  ? copy_msghdr_from_user (net/socket.c:2650)
[   17.499871][  T400]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   17.499873][  T400]  ? move_addr_to_kernel (net/socket.c:258)
[   17.499880][  T400]  ___sys_sendmsg (net/socket.c:2767)
[   17.499883][  T400]  ? copy_msghdr_from_user (net/socket.c:2619)
[   17.499899][  T400]  __sys_sendmsg (net/socket.c:2799)
[   17.499902][  T400]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   17.499908][  T400]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.499912][  T400]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   17.499921][  T400]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   17.499924][  T400]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   17.499927][  T400] RIP: 0033:0x7f1ae056d54e
[   17.499930][  T400] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   17.499932][  T400] RSP: 002b:00007fff4388f1d0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   17.499935][  T400] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f1ae056d54e
[   17.499937][  T400] RDX: 0000000000000000 RSI: 00007fff4388f280 RDI: 0000000000000005
[   17.499937][  T400] RBP: 00007fff4388f1e0 R08: 0000000000000000 R09: 0000000000000000
[   17.499938][  T400] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91b67a
[   17.499939][  T400] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fff4388f940
| [   29.044412][    C0] softirqs last disabled at (870225): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   29.044414][    C0] Preemption disabled at:
| [   29.044415][    C0] schedule_preempt_disabled (kernel/sched/core.c:7420)
| [   29.044425][    C0] Tainted: [W]=WARN
[   29.044426][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   29.044428][    C0] Call Trace:
[   29.044429][    C0]  <IRQ>
[   29.044431][    C0]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   29.044436][    C0]  ? schedule_preempt_disabled (kernel/sched/core.c:7420)
[   29.044437][    C0]  __might_resched.cold (kernel/sched/core.c:9234)
[   29.044441][    C0]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   29.044445][    C0]  ? __asan_memcpy (mm/kasan/shadow.c:106 (discriminator 1))
[   29.044447][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.044451][    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))
[   29.044454][    C0]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   29.044457][    C0]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   29.044460][    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)
[   29.044462][    C0]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   29.044464][    C0]  put_chars (drivers/char/virtio_console.c:1176)
[   29.044466][    C0]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   29.044468][    C0]  ? console_prepend_replay (kernel/printk/printk.c:3005)
[   29.044471][    C0]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   29.044475][    C0]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   29.044476][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.044477][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   29.044480][    C0]  console_emit_next_record (kernel/printk/printk.c:3183)
[   29.044482][    C0]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   29.044484][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.044486][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.044487][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   29.044489][    C0]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   29.044491][    C0]  console_flush_one_record (kernel/printk/printk.c:3268)
[   29.044493][    C0]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   29.044496][    C0]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   29.044497][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   29.044499][    C0]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   29.044500][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.044502][    C0]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   29.044503][    C0]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   29.044505][    C0]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   29.044507][    C0]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   29.044509][    C0]  vprintk_emit (kernel/printk/printk.c:2479)
[   29.044511][    C0]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   29.044513][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.044515][    C0]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   29.044516][    C0]  ? x86_64_start_kernel (arch/x86/kernel/head64.c:264)
[   29.044521][    C0]  _printk (kernel/printk/printk.c:2504)
[   29.044524][    C0]  ? snapshot_read.cold (user.c:?)
[   29.044526][    C0]  ? arch_stack_walk (arch/x86/kernel/stacktrace.c:25)
[   29.044530][    C0]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   29.044532][    C0]  ? nbcon_cpu_emergency_enter (./include/linux/instrumented.h:112 ./include/linux/atomic/atomic-instrumented.h:435 kernel/printk/nbcon.c:1723)
[   29.044534][    C0]  print_irq_inversion_bug.part.0 (kernel/locking/lockdep.c:4097 (discriminator 1))
[   29.044536][    C0]  mark_lock_irq (kernel/locking/lockdep.c:4095 kernel/locking/lockdep.c:4174 kernel/locking/lockdep.c:4310)
[   29.044538][    C0]  ? _raw_write_unlock_irqrestore (??:?)
[   29.044541][    C0]  mark_lock (kernel/locking/lockdep.c:4769)
[   29.044543][    C0]  mark_usage (kernel/locking/lockdep.c:4658)
[   29.044544][    C0]  __lock_acquire (kernel/locking/lockdep.c:5208)
[   29.044546][    C0]  lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   29.044548][    C0]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   29.044561][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.044563][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   29.044565][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   29.044571][    C0]  _raw_spin_lock (./include/linux/spinlock_api_smp.h:190 (discriminator 1) kernel/locking/spinlock.c:173 (discriminator 1))
[   29.044573][    C0]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   29.044579][    C0] br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   29.044585][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   29.044591][    C0]  call_timer_fn (kernel/time/timer.c:1748)
[   29.044595][    C0]  ? detach_if_pending (./include/linux/list.h:1159)
[   29.044596][    C0]  ? debug_object_active_state (lib/debugobjects.c:1122)
[   29.044600][    C0]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   29.044602][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   29.044603][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.044605][    C0]  __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2374)
[   29.044607][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   29.044614][    C0]  ? __bpf_trace_itimer_expire (./include/trace/events/timer.h:407)
[   29.044616][    C0]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   29.044619][    C0]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   29.044621][    C0]  run_timer_softirq (kernel/time/timer.c:2386 kernel/time/timer.c:2395 kernel/time/timer.c:2403)
[   29.044623][    C0]  ? __run_timers (./include/trace/events/timer.h:138 (discriminator 19))
[   29.044625][    C0]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   29.044627][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.044629][    C0]  handle_softirqs (kernel/softirq.c:645)
[   29.044631][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   29.044632][    C0]  ? _local_bh_enable (kernel/softirq.c:428 (discriminator 1))
[   29.044634][    C0]  __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
[   29.044636][    C0]  irq_exit_rcu (kernel/softirq.c:784)
[   29.044637][    C0]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1062 (discriminator 37) arch/x86/kernel/apic/apic.c:1062 (discriminator 37))
[   29.044640][    C0]  </IRQ>
[   29.044640][    C0]  <TASK>
[   29.044641][    C0]  ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4427 (discriminator 2))
[   29.044643][    C0]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:674)
[   29.044645][    C0] RIP: 0010:pv_native_safe_halt (./arch/x86/include/asm/irqflags.h:48 arch/x86/kernel/paravirt.c:63)
[   29.044648][    C0] Code: 48 8b 3d 94 d2 f5 01 e8 1f 00 00 00 48 2b 05 58 93 95 00 c3 0f 1f 80 00 00 00 00 f3 0f 1e fa eb 07 0f 00 2d 13 86 11 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 d2 f5 01 	mov    0x1f5d294(%rip),%rdi        # 0x1f5d29b
   7:	e8 1f 00 00 00       	call   0x2b
   c:	48 2b 05 58 93 95 00 	sub    0x959358(%rip),%rax        # 0x95936b
  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 86 11 00 	verw   0x118613(%rip)        # 0x11863b
  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
[   29.044650][    C0] RSP: 0018:ffffffff98c07cf8 EFLAGS: 00000296
[   29.044653][    C0] RAX: 00000000000d474f RBX: ffffffff98c1c600 RCX: ffffffff95cf0307
[   29.044654][    C0] RDX: ffffffff98c1c600 RSI: ffffffff98a38af6 RDI: ffffffff9848d8e0
[   29.044655][    C0] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[   29.044656][    C0] R10: 0000000000000000 R11: 0000000000000001 R12: 1ffffffff3180fa2
[   29.044657][    C0] R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000014770
[   29.044658][    C0]  ? cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   29.044661][    C0]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   29.044663][    C0]  default_idle (./arch/x86/include/asm/paravirt.h:62 arch/x86/kernel/process.c:768)
[   29.044664][    C0]  default_idle_call (kernel/sched/idle.c:122)
[   29.044666][    C0]  cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   29.044668][    C0]  ? arch_cpu_idle_exit+0x40/0x40
[   29.044669][    C0]  ? mark_tsc_async_resets (arch/x86/kernel/tsc_sync.c:49)
[   29.044672][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.044674][    C0]  do_idle (kernel/sched/idle.c:355)
[   29.044675][    C0]  cpu_startup_entry (kernel/sched/idle.c:454)
[   29.044677][    C0]  rest_init (init/main.c:727)
[   29.044679][    C0]  ? __cpuidle_text_end (??:?)
[   29.044682][    C0]  ? rest_init (init/main.c:727)
[   29.044684][    C0]  ? acpi_hw_set_mode (drivers/acpi/acpica/hwacpi.c:72 (discriminator 1))
[   29.044687][    C0]  ? cpus_read_unlock (./include/linux/percpu-rwsem.h:125 (discriminator 1) kernel/cpu.c:502 (discriminator 1))
[   29.044690][    C0]  ? acpi_enable (drivers/acpi/acpica/evxfevnt.c:47)
[   29.044692][    C0]  start_kernel (init/main.c:1185)
[   29.044694][    C0]  x86_64_start_reservations (arch/x86/kernel/head64.c:310)
[   29.044696][    C0]  x86_64_start_kernel (arch/x86/kernel/head64.c:291)
[   29.044698][    C0]  common_startup_64 (arch/x86/kernel/head_64.S:418)
| [   29.109179][    C0]
| [   29.109306][    C0]
| [   29.109306][    C0] stack backtrace:
| [   29.109503][    C0] Tainted: [W]=WARN
[   29.109505][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   29.109506][    C0] Call Trace:
[   29.109507][    C0]  <IRQ>
[   29.109508][    C0]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   29.109513][    C0]  print_irq_inversion_bug.part.0.cold (kernel/locking/lockdep.c:4141)
[   29.109516][    C0]  mark_lock_irq (kernel/locking/lockdep.c:4095 kernel/locking/lockdep.c:4174 kernel/locking/lockdep.c:4310)
[   29.109517][    C0]  ? _raw_write_unlock_irqrestore (??:?)
[   29.109520][    C0]  mark_lock (kernel/locking/lockdep.c:4769)
[   29.109522][    C0]  mark_usage (kernel/locking/lockdep.c:4658)
[   29.109524][    C0]  __lock_acquire (kernel/locking/lockdep.c:5208)
[   29.109526][    C0]  lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   29.109528][    C0]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   29.109535][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.109538][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   29.109540][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   29.109546][    C0]  _raw_spin_lock (./include/linux/spinlock_api_smp.h:190 (discriminator 1) kernel/locking/spinlock.c:173 (discriminator 1))
[   29.109548][    C0]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   29.109554][    C0] br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   29.109560][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   29.109566][    C0]  call_timer_fn (kernel/time/timer.c:1748)
[   29.109568][    C0]  ? detach_if_pending (./include/linux/list.h:1159)
[   29.109570][    C0]  ? debug_object_active_state (lib/debugobjects.c:1122)
[   29.109574][    C0]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   29.109575][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   29.109577][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.109580][    C0]  __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2374)
[   29.109581][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   29.109588][    C0]  ? __bpf_trace_itimer_expire (./include/trace/events/timer.h:407)
[   29.109590][    C0]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   29.109593][    C0]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   29.109595][    C0]  run_timer_softirq (kernel/time/timer.c:2386 kernel/time/timer.c:2395 kernel/time/timer.c:2403)
[   29.109597][    C0]  ? __run_timers (./include/trace/events/timer.h:138 (discriminator 19))
[   29.109599][    C0]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   29.109601][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.109603][    C0]  handle_softirqs (kernel/softirq.c:645)
[   29.109605][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   29.109607][    C0]  ? _local_bh_enable (kernel/softirq.c:428 (discriminator 1))
[   29.109608][    C0]  __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
[   29.109610][    C0]  irq_exit_rcu (kernel/softirq.c:784)
[   29.109611][    C0]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1062 (discriminator 37) arch/x86/kernel/apic/apic.c:1062 (discriminator 37))
[   29.109613][    C0]  </IRQ>
[   29.109614][    C0]  <TASK>
[   29.109614][    C0]  ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4427 (discriminator 2))
[   29.109616][    C0]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:674)
[   29.109618][    C0] RIP: 0010:pv_native_safe_halt (./arch/x86/include/asm/irqflags.h:48 arch/x86/kernel/paravirt.c:63)
[   29.109620][    C0] Code: 48 8b 3d 94 d2 f5 01 e8 1f 00 00 00 48 2b 05 58 93 95 00 c3 0f 1f 80 00 00 00 00 f3 0f 1e fa eb 07 0f 00 2d 13 86 11 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 d2 f5 01 	mov    0x1f5d294(%rip),%rdi        # 0x1f5d29b
   7:	e8 1f 00 00 00       	call   0x2b
   c:	48 2b 05 58 93 95 00 	sub    0x959358(%rip),%rax        # 0x95936b
  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 86 11 00 	verw   0x118613(%rip)        # 0x11863b
  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
[   29.109622][    C0] RSP: 0018:ffffffff98c07cf8 EFLAGS: 00000296
[   29.109624][    C0] RAX: 00000000000d474f RBX: ffffffff98c1c600 RCX: ffffffff95cf0307
[   29.109626][    C0] RDX: ffffffff98c1c600 RSI: ffffffff98a38af6 RDI: ffffffff9848d8e0
[   29.109627][    C0] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[   29.109627][    C0] R10: 0000000000000000 R11: 0000000000000001 R12: 1ffffffff3180fa2
[   29.109628][    C0] R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000014770
[   29.109629][    C0]  ? cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   29.109632][    C0]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   29.109633][    C0]  default_idle (./arch/x86/include/asm/paravirt.h:62 arch/x86/kernel/process.c:768)
[   29.109635][    C0]  default_idle_call (kernel/sched/idle.c:122)
[   29.109636][    C0]  cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   29.109638][    C0]  ? arch_cpu_idle_exit+0x40/0x40
[   29.109639][    C0]  ? mark_tsc_async_resets (arch/x86/kernel/tsc_sync.c:49)
[   29.109642][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.109644][    C0]  do_idle (kernel/sched/idle.c:355)
[   29.109645][    C0]  cpu_startup_entry (kernel/sched/idle.c:454)
[   29.109647][    C0]  rest_init (init/main.c:727)
[   29.109649][    C0]  ? __cpuidle_text_end (??:?)
[   29.109651][    C0]  ? rest_init (init/main.c:727)
[   29.109653][    C0]  ? acpi_hw_set_mode (drivers/acpi/acpica/hwacpi.c:72 (discriminator 1))
[   29.109657][    C0]  ? cpus_read_unlock (./include/linux/percpu-rwsem.h:125 (discriminator 1) kernel/cpu.c:502 (discriminator 1))
[   29.109659][    C0]  ? acpi_enable (drivers/acpi/acpica/evxfevnt.c:47)
[   29.109662][    C0]  start_kernel (init/main.c:1185)
[   29.109663][    C0]  x86_64_start_reservations (arch/x86/kernel/head64.c:310)
[   29.109665][    C0]  x86_64_start_kernel (arch/x86/kernel/head64.c:291)
[   29.109667][    C0]  common_startup_64 (arch/x86/kernel/head_64.S:418)
| [   30.871117][   T12] softirqs last disabled at (37086): __fib6_clean_all (./include/linux/spinlock.h:353 net/ipv6/ip6_fib.c:2323)
| [   30.871121][   T12] Preemption disabled at:
| [   30.871122][   T12] vprintk_emit (kernel/printk/printk.c:2471)
| [   30.871137][   T12] Tainted: [W]=WARN
[   30.871138][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   30.871141][   T12] Workqueue: netns cleanup_net
[   30.871148][   T12] Call Trace:
[   30.871150][   T12]  <TASK>
[   30.871152][   T12]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   30.871158][   T12]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   30.871161][   T12]  __might_resched.cold (kernel/sched/core.c:9234)
[   30.871166][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   30.871170][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   30.871175][   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))
[   30.871179][   T12]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   30.871183][   T12]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   30.871188][   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)
[   30.871190][   T12]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   30.871193][   T12]  put_chars (drivers/char/virtio_console.c:1176)
[   30.871195][   T12]  ? desc_read_finalized_seq (kernel/printk/printk_ringbuffer.c:1934)
[   30.871198][   T12]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   30.871201][   T12]  ? console_prepend_replay (kernel/printk/printk.c:3005)
[   30.871205][   T12]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   30.871209][   T12]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   30.871211][   T12]  ? 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)
[   30.871214][   T12]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   30.871216][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   30.871218][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   30.871221][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   30.871224][   T12]  console_emit_next_record (kernel/printk/printk.c:3183)
[   30.871228][   T12]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   30.871231][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   30.871233][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   30.871235][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   30.871238][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   30.871241][   T12]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   30.871243][   T12]  console_flush_one_record (kernel/printk/printk.c:3268)
[   30.871247][   T12]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   30.871250][   T12]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   30.871253][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   30.871255][   T12]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   30.871257][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   30.871259][   T12]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   30.871262][   T12]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   30.871264][   T12]  ? __rcu_read_lock (kernel/rcu/tree_plugin.h:391 (discriminator 6) kernel/rcu/tree_plugin.h:414 (discriminator 6))
[   30.871267][   T12]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   30.871269][   T12]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   30.871272][   T12]  vprintk_emit (kernel/printk/printk.c:2479)
[   30.871279][   T12]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   30.871282][   T12]  ? process_one_work (kernel/workqueue.c:3387)
[   30.871285][   T12]  ? kthread (kernel/kthread.c:436)
[   30.871288][   T12]  ? ret_from_fork (arch/x86/kernel/process.c:158)
[   30.871291][   T12]  ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
[   30.871294][   T12]  _printk (kernel/printk/printk.c:2504)
[   30.871299][   T12]  ? snapshot_read.cold (user.c:?)
[   30.871302][   T12]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   30.871306][   T12]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   30.871309][   T12]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   30.871311][   T12]  ? netdev_notice (net/core/dev.c:13194)
[   30.871314][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   30.871317][   T12]  ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1))
[   30.871319][   T12]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:78)
[   30.871323][   T12]  ? down_write_nested (kernel/locking/rwsem.c:1759)
[   30.871325][   T12]  ? 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)
[   30.871329][   T12]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[   30.871333][   T12]  dev_set_allmulti (net/core/dev_api.c:315)
[   30.871337][   T12] del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341) bridge
[   30.871355][   T12] br_dev_delete (net/bridge/br_if.c:387) bridge
[   30.871369][   T12] br_net_exit_rtnl (net/bridge/br.c:414) bridge
[   30.871381][   T12]  ops_undo_list (net/core/net_namespace.c:181 net/core/net_namespace.c:249)
[   30.871385][   T12]  ? rtnl_net_dumpid_one (net/core/net_namespace.c:1098)
[   30.871388][   T12]  ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563)
[   30.871392][   T12]  cleanup_net (net/core/net_namespace.c:706)
[   30.871395][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   30.871398][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   30.871400][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   30.871404][   T12]  process_one_work (kernel/workqueue.c:3387)
[   30.871408][   T12]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[   30.871411][   T12]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   30.871414][   T12]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   30.871417][   T12]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   30.871422][   T12]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   30.871425][   T12]  kthread (kernel/kthread.c:436)
[   30.871427][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   30.871429][   T12]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   30.871432][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   30.871434][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[   30.871437][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   30.871440][   T12]  ? kthread_affine_preferred (kernel/kthread.c:857)


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