======================================
| [   10.793978][  T188] softirqs last disabled at (34589): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   10.793981][  T188] Preemption disabled at:
| [   10.793982][  T188] 0x0
| [   10.793996][  T188] Tainted: [W]=WARN
[   10.793997][  T188] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.793999][  T188] Call Trace:
[   10.794001][  T188]  <TASK>
[   10.794003][  T188]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   10.794011][  T188]  __might_resched.cold (kernel/sched/core.c:9234)
[   10.794018][  T188]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   10.794024][  T188]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   10.794031][  T188]  __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))
[   10.794035][  T188]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.794044][  T188]  ? 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)
[   10.794047][  T188]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.794052][  T188]  put_chars (drivers/char/virtio_console.c:1176)
[   10.794057][  T188]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   10.794059][  T188]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   10.794066][  T188]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   10.794075][  T188]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   10.794086][  T188]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   10.794092][  T188]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.794096][  T188]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.794103][  T188]  console_emit_next_record (kernel/printk/printk.c:3183)
[   10.794109][  T188]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   10.794112][  T188]  ? 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))
[   10.794117][  T188]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.794121][  T188]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.794128][  T188]  console_flush_one_record (kernel/printk/printk.c:3268)
[   10.794135][  T188]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   10.794137][  T188]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.794147][  T188]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   10.794151][  T188]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   10.794154][  T188]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.794158][  T188]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   10.794164][  T188]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   10.794166][  T188]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   10.794172][  T188]  vprintk_emit (kernel/printk/printk.c:2479)
[   10.794178][  T188]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   10.794184][  T188]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.794190][  T188]  _printk (kernel/printk/printk.c:2504)
[   10.794196][  T188]  ? snapshot_read.cold (user.c:?)
[   10.794200][  T188]  ? 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)
[   10.794204][  T188]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   10.794211][  T188]  ? 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)
[   10.794216][  T188]  do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4))
[   10.794221][  T188]  ? exit_notify (kernel/exit.c:780)
[   10.794223][  T188]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   10.794228][  T188]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.794235][  T188]  do_group_exit (kernel/exit.c:1151)
[   10.794240][  T188]  __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160)
[   10.794243][  T188]  x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232)
[   10.794246][  T188]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   10.794250][  T188]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   10.794255][  T188]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.794258][  T188] RIP: 0033:0x7fbb8ac541b8
[   10.794261][  T188] Code: Unable to access opcode bytes at 0x7fbb8ac5418e.

Code starting with the faulting instruction
===========================================
[   10.794263][  T188] RSP: 002b:00007fff87e42ca8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[   10.794266][  T188] RAX: ffffffffffffffda RBX: 00007fbb8ad84f88 RCX: 00007fbb8ac541b8
[   10.794268][  T188] RDX: 00007fbb8a99efc8 RSI: fffffffffffffeb8 RDI: 0000000000000000
[   10.794270][  T188] RBP: 00007fff87e42d00 R08: 0000000000000000 R09: 0000000000008010
[   10.794271][  T188] R10: 00007fff87e42ac0 R11: 0000000000000246 R12: 0000000000000001
[   10.794272][  T188] R13: 0000000000000000 R14: 00007fbb8ad83680 R15: 00007fbb8ad84fa0
| [   12.960343][  T269] softirqs last disabled at (12408): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   12.960345][  T269] Preemption disabled at:
| [   12.960346][  T269] vprintk_emit (kernel/printk/printk.c:2471)
| [   12.960355][  T269] Tainted: [W]=WARN
[   12.960356][  T269] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.960358][  T269] Call Trace:
[   12.960360][  T269]  <TASK>
[   12.960361][  T269]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   12.960367][  T269]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   12.960369][  T269]  __might_resched.cold (kernel/sched/core.c:9234)
[   12.960374][  T269]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   12.960378][  T269]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   12.960383][  T269]  __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))
[   12.960386][  T269]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.960391][  T269]  ? 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)
[   12.960394][  T269]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.960397][  T269]  put_chars (drivers/char/virtio_console.c:1176)
[   12.960400][  T269]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   12.960405][  T269]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   12.960408][  T269]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   12.960411][  T269]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   12.960413][  T269]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.960415][  T269]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.960419][  T269]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   12.960421][  T269]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   12.960424][  T269]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.960432][  T269]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.960436][  T269]  console_emit_next_record (kernel/printk/printk.c:3183)
[   12.960440][  T269]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   12.960442][  T269]  ? 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))
[   12.960445][  T269]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.960447][  T269]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.960451][  T269]  console_flush_one_record (kernel/printk/printk.c:3268)
[   12.960456][  T269]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   12.960458][  T269]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.960463][  T269]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   12.960466][  T269]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   12.960467][  T269]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.960470][  T269]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   12.960474][  T269]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   12.960475][  T269]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   12.960479][  T269]  vprintk_emit (kernel/printk/printk.c:2479)
[   12.960483][  T269]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   12.960485][  T269]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   12.960487][  T269]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   12.960491][  T269]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   12.960495][  T269]  _printk (kernel/printk/printk.c:2504)
[   12.960499][  T269]  ? snapshot_read.cold (user.c:?)
[   12.960503][  T269]  ? br_multicast_flood (??:?) bridge
[   12.960516][  T269]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   12.960517][  T269]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   12.960519][  T269]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   12.960523][  T269] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   12.960534][  T269] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   12.960542][  T269] new_nbp (net/bridge/br_if.c:449) bridge
[   12.960552][  T269] br_add_if (net/bridge/br_if.c:592) bridge
[   12.960559][  T269]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   12.960563][  T269]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   12.960566][  T269]  ? __kernel_text_address (kernel/extable.c:79)
[   12.960570][  T269]  do_set_master (net/core/rtnetlink.c:3071)
[   12.960575][  T269]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   12.960578][  T269]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   12.960581][  T269]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   12.960583][  T269]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   12.960585][  T269]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   12.960589][  T269]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   12.960592][  T269]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   12.960593][  T269]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   12.960596][  T269]  ? kasan_save_stack (mm/kasan/common.c:58)
[   12.960599][  T269]  ? kasan_save_stack (mm/kasan/common.c:57)
[   12.960601][  T269]  ? kasan_save_track (mm/kasan/common.c:78)
[   12.960604][  T269]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.960606][  T269]  ? netlink_seq_next (net/netlink/af_netlink.c:2684)
[   12.960609][  T269]  ? ___sys_sendmsg (net/socket.c:2757)
[   12.960613][  T269]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.960615][  T269]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   12.960618][  T269]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.960620][  T269]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.960622][  T269]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.960624][  T269]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.960626][  T269]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   12.960630][  T269]  ? __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)
[   12.960632][  T269]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   12.960634][  T269]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   12.960638][  T269]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   12.960639][  T269]  ? nla_get_range_signed (lib/nlattr.c:270)
[   12.960645][  T269]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   12.960650][  T269]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   12.960655][  T269]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   12.960658][  T269]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   12.960659][  T269]  ? finish_task_switch.isra.0 (kernel/sched/sched.h:1698 kernel/sched/core.c:5251 kernel/sched/core.c:5369)
[   12.960661][  T269]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.960666][  T269]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.960668][  T269]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.960670][  T269]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   12.960672][  T269]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   12.960675][  T269]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   12.960678][  T269]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   12.960681][  T269]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   12.960682][  T269]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.960687][  T269]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.960689][  T269]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.960692][  T269]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   12.960694][  T269]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   12.960697][  T269]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   12.960703][  T269]  ? 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))
[   12.960705][  T269]  ? 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))
[   12.960709][  T269]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   12.960713][  T269]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   12.960716][  T269]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.960720][  T269]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   12.960724][  T269]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   12.960728][  T269]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   12.960733][  T269]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   12.960736][  T269]  ? copy_msghdr_from_user (net/socket.c:2650)
[   12.960738][  T269]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   12.960740][  T269]  ? move_addr_to_kernel (net/socket.c:258)
[   12.960747][  T269]  ___sys_sendmsg (net/socket.c:2767)
[   12.960750][  T269]  ? copy_msghdr_from_user (net/socket.c:2619)
[   12.960766][  T269]  __sys_sendmsg (net/socket.c:2799)
[   12.960769][  T269]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   12.960776][  T269]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.960780][  T269]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   12.960782][  T269]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   12.960785][  T269]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.960787][  T269] RIP: 0033:0x7f518059e54e
[   12.960791][  T269] 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
[   12.960793][  T269] RSP: 002b:00007fff3bcb6ce0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   12.960796][  T269] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f518059e54e
[   12.960797][  T269] RDX: 0000000000000000 RSI: 00007fff3bcb6d90 RDI: 0000000000000005
[   12.960798][  T269] RBP: 00007fff3bcb6cf0 R08: 0000000000000000 R09: 0000000000000000
[   12.960799][  T269] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a917fe5
[   12.960800][  T269] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fff3bcb7450
| [   14.429512][  T319] softirqs last disabled at (12474): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   14.429515][  T319] Preemption disabled at:
| [   14.429516][  T319] vprintk_emit (kernel/printk/printk.c:2471)
| [   14.429525][  T319] Tainted: [W]=WARN
[   14.429526][  T319] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   14.429528][  T319] Call Trace:
[   14.429530][  T319]  <TASK>
[   14.429531][  T319]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   14.429537][  T319]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   14.429539][  T319]  __might_resched.cold (kernel/sched/core.c:9234)
[   14.429544][  T319]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   14.429548][  T319]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   14.429554][  T319]  __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))
[   14.429556][  T319]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   14.429562][  T319]  ? 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)
[   14.429565][  T319]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   14.429568][  T319]  put_chars (drivers/char/virtio_console.c:1176)
[   14.429570][  T319]  ? prb_final_commit (kernel/printk/printk_ringbuffer.c:1842)
[   14.429572][  T319]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   14.429575][  T319]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   14.429580][  T319]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   14.429582][  T319]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   14.429586][  T319]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   14.429589][  T319]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   14.429591][  T319]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.429592][  T319]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.429596][  T319]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   14.429599][  T319]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   14.429602][  T319]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.429604][  T319]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   14.429608][  T319]  console_emit_next_record (kernel/printk/printk.c:3183)
[   14.429612][  T319]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   14.429614][  T319]  ? 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))
[   14.429618][  T319]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.429620][  T319]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   14.429624][  T319]  console_flush_one_record (kernel/printk/printk.c:3268)
[   14.429628][  T319]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   14.429630][  T319]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.429636][  T319]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   14.429639][  T319]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   14.429640][  T319]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.429643][  T319]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   14.429647][  T319]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   14.429648][  T319]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   14.429652][  T319]  vprintk_emit (kernel/printk/printk.c:2479)
[   14.429656][  T319]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   14.429659][  T319]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   14.429662][  T319]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   14.429665][  T319]  _printk (kernel/printk/printk.c:2504)
[   14.429669][  T319]  ? snapshot_read.cold (user.c:?)
[   14.429673][  T319]  ? br_multicast_flood (??:?) bridge
[   14.429686][  T319]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   14.429688][  T319]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   14.429689][  T319]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   14.429694][  T319] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   14.429705][  T319] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   14.429713][  T319] new_nbp (net/bridge/br_if.c:449) bridge
[   14.429724][  T319] br_add_if (net/bridge/br_if.c:592) bridge
[   14.429731][  T319]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   14.429735][  T319]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   14.429738][  T319]  ? __kernel_text_address (kernel/extable.c:79)
[   14.429742][  T319]  do_set_master (net/core/rtnetlink.c:3071)
[   14.429747][  T319]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   14.429750][  T319]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   14.429753][  T319]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   14.429755][  T319]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   14.429757][  T319]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   14.429761][  T319]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   14.429763][  T319]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   14.429765][  T319]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   14.429768][  T319]  ? kasan_save_stack (mm/kasan/common.c:58)
[   14.429771][  T319]  ? kasan_save_stack (mm/kasan/common.c:57)
[   14.429772][  T319]  ? kasan_save_track (mm/kasan/common.c:78)
[   14.429775][  T319]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.429777][  T319]  ? netlink_seq_next (net/netlink/af_netlink.c:2684)
[   14.429781][  T319]  ? ___sys_sendmsg (net/socket.c:2757)
[   14.429785][  T319]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   14.429787][  T319]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   14.429790][  T319]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.429792][  T319]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   14.429794][  T319]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.429796][  T319]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.429798][  T319]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   14.429802][  T319]  ? __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)
[   14.429805][  T319]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   14.429807][  T319]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   14.429811][  T319]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   14.429812][  T319]  ? nla_get_range_signed (lib/nlattr.c:270)
[   14.429818][  T319]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   14.429823][  T319]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   14.429828][  T319]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   14.429830][  T319]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.429835][  T319]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   14.429837][  T319]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   14.429839][  T319]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   14.429840][  T319]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   14.429844][  T319]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   14.429846][  T319]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   14.429850][  T319]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   14.429851][  T319]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.429856][  T319]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   14.429858][  T319]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   14.429861][  T319]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   14.429863][  T319]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   14.429866][  T319]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   14.429872][  T319]  ? 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))
[   14.429873][  T319]  ? 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))
[   14.429878][  T319]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   14.429882][  T319]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   14.429885][  T319]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.429889][  T319]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   14.429893][  T319]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   14.429896][  T319]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   14.429902][  T319]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   14.429904][  T319]  ? copy_msghdr_from_user (net/socket.c:2650)
[   14.429907][  T319]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   14.429908][  T319]  ? move_addr_to_kernel (net/socket.c:258)
[   14.429916][  T319]  ___sys_sendmsg (net/socket.c:2767)
[   14.429919][  T319]  ? copy_msghdr_from_user (net/socket.c:2619)
[   14.429935][  T319]  __sys_sendmsg (net/socket.c:2799)
[   14.429938][  T319]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   14.429944][  T319]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.429948][  T319]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   14.429950][  T319]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   14.429953][  T319]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   14.429956][  T319] RIP: 0033:0x7f510b56354e
[   14.429959][  T319] 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
[   14.429961][  T319] RSP: 002b:00007ffd84d63710 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   14.429964][  T319] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f510b56354e
[   14.429966][  T319] RDX: 0000000000000000 RSI: 00007ffd84d637c0 RDI: 0000000000000005
[   14.429967][  T319] RBP: 00007ffd84d63720 R08: 0000000000000000 R09: 0000000000000000
[   14.429968][  T319] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a917fe6
[   14.429968][  T319] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffd84d63e80
| [   15.509344][  T357] softirqs last disabled at (19242): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   15.509347][  T357] Preemption disabled at:
| [   15.509347][  T357] vprintk_emit (kernel/printk/printk.c:2471)
| [   15.509357][  T357] Tainted: [W]=WARN
[   15.509358][  T357] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.509360][  T357] Call Trace:
[   15.509361][  T357]  <TASK>
[   15.509363][  T357]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   15.509369][  T357]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   15.509371][  T357]  __might_resched.cold (kernel/sched/core.c:9234)
[   15.509376][  T357]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   15.509380][  T357]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   15.509385][  T357]  __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))
[   15.509387][  T357]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   15.509393][  T357]  ? 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)
[   15.509396][  T357]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   15.509399][  T357]  put_chars (drivers/char/virtio_console.c:1176)
[   15.509401][  T357]  ? prb_final_commit (kernel/printk/printk_ringbuffer.c:1842)
[   15.509403][  T357]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   15.509406][  T357]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   15.509411][  T357]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   15.509413][  T357]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   15.509417][  T357]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   15.509420][  T357]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   15.509422][  T357]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.509423][  T357]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.509427][  T357]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   15.509431][  T357]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   15.509435][  T357]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.509437][  T357]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   15.509441][  T357]  console_emit_next_record (kernel/printk/printk.c:3183)
[   15.509445][  T357]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   15.509447][  T357]  ? 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))
[   15.509450][  T357]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.509453][  T357]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   15.509457][  T357]  console_flush_one_record (kernel/printk/printk.c:3268)
[   15.509461][  T357]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   15.509463][  T357]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.509469][  T357]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   15.509472][  T357]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   15.509473][  T357]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.509476][  T357]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   15.509480][  T357]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   15.509481][  T357]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   15.509485][  T357]  vprintk_emit (kernel/printk/printk.c:2479)
[   15.509489][  T357]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   15.509492][  T357]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   15.509494][  T357]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   15.509498][  T357]  _printk (kernel/printk/printk.c:2504)
[   15.509502][  T357]  ? snapshot_read.cold (user.c:?)
[   15.509506][  T357]  ? br_multicast_flood (??:?) bridge
[   15.509519][  T357]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   15.509521][  T357]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   15.509522][  T357]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   15.509526][  T357] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   15.509537][  T357] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   15.509546][  T357] new_nbp (net/bridge/br_if.c:449) bridge
[   15.509555][  T357] br_add_if (net/bridge/br_if.c:592) bridge
[   15.509562][  T357]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   15.509566][  T357]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   15.509569][  T357]  ? __kernel_text_address (kernel/extable.c:79)
[   15.509573][  T357]  do_set_master (net/core/rtnetlink.c:3071)
[   15.509578][  T357]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   15.509581][  T357]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   15.509584][  T357]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   15.509585][  T357]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   15.509587][  T357]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   15.509591][  T357]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   15.509593][  T357]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   15.509595][  T357]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   15.509598][  T357]  ? kasan_save_stack (mm/kasan/common.c:58)
[   15.509601][  T357]  ? kasan_save_stack (mm/kasan/common.c:57)
[   15.509603][  T357]  ? kasan_save_track (mm/kasan/common.c:78)
[   15.509606][  T357]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.509607][  T357]  ? netlink_seq_next (net/netlink/af_netlink.c:2684)
[   15.509610][  T357]  ? ___sys_sendmsg (net/socket.c:2757)
[   15.509615][  T357]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   15.509617][  T357]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   15.509620][  T357]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.509622][  T357]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   15.509624][  T357]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.509626][  T357]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.509628][  T357]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   15.509632][  T357]  ? __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)
[   15.509635][  T357]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   15.509637][  T357]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   15.509641][  T357]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   15.509642][  T357]  ? nla_get_range_signed (lib/nlattr.c:270)
[   15.509647][  T357]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   15.509653][  T357]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   15.509658][  T357]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   15.509660][  T357]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.509664][  T357]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   15.509666][  T357]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   15.509668][  T357]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   15.509670][  T357]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   15.509674][  T357]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   15.509676][  T357]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   15.509679][  T357]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   15.509681][  T357]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.509685][  T357]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   15.509687][  T357]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   15.509690][  T357]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   15.509692][  T357]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   15.509695][  T357]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   15.509701][  T357]  ? 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))
[   15.509703][  T357]  ? 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))
[   15.509707][  T357]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   15.509711][  T357]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   15.509714][  T357]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.509718][  T357]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   15.509722][  T357]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   15.509726][  T357]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   15.509731][  T357]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   15.509733][  T357]  ? copy_msghdr_from_user (net/socket.c:2650)
[   15.509736][  T357]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   15.509737][  T357]  ? move_addr_to_kernel (net/socket.c:258)
[   15.509745][  T357]  ___sys_sendmsg (net/socket.c:2767)
[   15.509748][  T357]  ? copy_msghdr_from_user (net/socket.c:2619)
[   15.509764][  T357]  __sys_sendmsg (net/socket.c:2799)
[   15.509767][  T357]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   15.509773][  T357]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.509777][  T357]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   15.509779][  T357]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   15.509782][  T357]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   15.509784][  T357] RIP: 0033:0x7fbfb36c854e
[   15.509788][  T357] 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
[   15.509790][  T357] RSP: 002b:00007ffe922d3d30 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   15.509792][  T357] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fbfb36c854e
[   15.509794][  T357] RDX: 0000000000000000 RSI: 00007ffe922d3de0 RDI: 0000000000000005
[   15.509795][  T357] RBP: 00007ffe922d3d40 R08: 0000000000000000 R09: 0000000000000000
[   15.509796][  T357] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a917fe7
[   15.509797][  T357] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffe922d44a0
| [   23.078113][  T445] softirqs last disabled at (22649): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   23.078116][  T445] Preemption disabled at:
| [   23.078117][  T445] vprintk_emit (kernel/printk/printk.c:2471)
| [   23.078126][  T445] Tainted: [W]=WARN
[   23.078127][  T445] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   23.078128][  T445] Call Trace:
[   23.078130][  T445]  <TASK>
[   23.078131][  T445]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   23.078136][  T445]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   23.078138][  T445]  __might_resched.cold (kernel/sched/core.c:9234)
[   23.078143][  T445]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   23.078147][  T445]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   23.078152][  T445]  __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))
[   23.078154][  T445]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   23.078163][  T445]  ? 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)
[   23.078165][  T445]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   23.078169][  T445]  put_chars (drivers/char/virtio_console.c:1176)
[   23.078170][  T445]  ? desc_read_finalized_seq (kernel/printk/printk_ringbuffer.c:1934)
[   23.078173][  T445]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   23.078176][  T445]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   23.078179][  T445]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   23.078183][  T445]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   23.078186][  T445]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   23.078187][  T445]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   23.078192][  T445]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   23.078193][  T445]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   23.078196][  T445]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   23.078199][  T445]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   23.078203][  T445]  console_emit_next_record (kernel/printk/printk.c:3183)
[   23.078206][  T445]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   23.078208][  T445]  ? 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))
[   23.078211][  T445]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   23.078213][  T445]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   23.078217][  T445]  console_flush_one_record (kernel/printk/printk.c:3268)
[   23.078221][  T445]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   23.078223][  T445]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   23.078228][  T445]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   23.078230][  T445]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   23.078232][  T445]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   23.078234][  T445]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   23.078238][  T445]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   23.078240][  T445]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   23.078243][  T445]  vprintk_emit (kernel/printk/printk.c:2479)
[   23.078247][  T445]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   23.078253][  T445]  ? llc_exit (./arch/x86/include/asm/atomic.h:28 ./include/linux/atomic/atomic-arch-fallback.h:503 ./include/linux/atomic/atomic-instrumented.h:68 ./include/linux/refcount.h:134 net/llc/llc_core.c:38 net/llc/llc_core.c:96) llc
[   23.078256][  T445]  _printk (kernel/printk/printk.c:2504)
[   23.078260][  T445]  ? snapshot_read.cold (user.c:?)
[   23.078266][  T445]  ? do_one_initcall (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 ./include/linux/cpumask.h:650 ./include/linux/cpumask.h:1232 ./include/trace/events/initcall.h:27 init/main.c:1356)
[   23.078269][  T445] gact_init_module (net/sched/act_gact.c:180) act_gact
[   23.078271][  T445]  do_one_initcall (init/main.c:1357)
[   23.078273][  T445]  ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10)
[   23.078278][  T445]  ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1))
[   23.078281][  T445]  ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178)
[   23.078286][  T445]  do_init_module (kernel/module/main.c:3117)
[   23.078289][  T445]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   23.078293][  T445]  ? free_module (./include/trace/events/module.h:50 (discriminator 19))
[   23.078296][  T445]  ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792)
[   23.078300][  T445]  load_module (kernel/module/main.c:3593)
[   23.078307][  T445]  ? layout_and_allocate.isra.0 (kernel/module/main.c:3016)
[   23.078311][  T445]  ? __ia32_sys_fsconfig (??:?)
[   23.078314][  T445]  ? ovl_real_file (fs/overlayfs/file.c:195)
[   23.078318][  T445]  ? backing_file_read_iter (fs/backing-file.c:211)
[   23.078321][  T445]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   23.078326][  T445]  init_module_from_file (kernel/module/main.c:3790)
[   23.078329][  T445]  ? __do_sys_init_module (kernel/module/main.c:3664)
[   23.078337][  T445]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   23.078340][  T445]  ? 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)
[   23.078343][  T445]  idempotent_init_module (kernel/module/main.c:3802)
[   23.078347][  T445]  ? init_module_from_file (kernel/module/main.c:3791)
[   23.078353][  T445]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   23.078355][  T445]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   23.078361][  T445]  __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812)
[   23.078363][  T445]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   23.078366][  T445]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   23.078368][  T445]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   23.078371][  T445]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   23.078373][  T445] RIP: 0033:0x7f38aa04637d
[   23.078376][  T445] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 4b aa 0f 00 f7 d8 64 89 01 48
All code
========
   0:	ff c3                	inc    %ebx
   2:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
   9:	00 00 00 
   c:	90                   	nop
   d:	f3 0f 1e fa          	endbr64
  11:	48 89 f8             	mov    %rdi,%rax
  14:	48 89 f7             	mov    %rsi,%rdi
  17:	48 89 d6             	mov    %rdx,%rsi
  1a:	48 89 ca             	mov    %rcx,%rdx
  1d:	4d 89 c2             	mov    %r8,%r10
  20:	4d 89 c8             	mov    %r9,%r8
  23:	4c 8b 4c 24 08       	mov    0x8(%rsp),%r9
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d 4b aa 0f 00 	mov    0xfaa4b(%rip),%rcx        # 0xfaa85
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d 4b aa 0f 00 	mov    0xfaa4b(%rip),%rcx        # 0xfaa5b
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   23.078377][  T445] RSP: 002b:00007ffd580beaf8 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[   23.078380][  T445] RAX: ffffffffffffffda RBX: 0000560a71b39810 RCX: 00007f38aa04637d
[   23.078382][  T445] RDX: 0000000000000000 RSI: 0000560a6db86ffd RDI: 0000000000000000
[   23.078382][  T445] RBP: 00007ffd580beb90 R08: 0000000000000000 R09: 0000000000000000
[   23.078383][  T445] R10: 0000000000000000 R11: 0000000000000246 R12: 0000560a6db86ffd
[   23.078384][  T445] R13: 0000560a71b39960 R14: 0000000000040000 R15: 0000000000000000
| [   28.034535][    C2] softirqs last disabled at (869349): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   28.034537][    C2] Preemption disabled at:
| [   28.034538][    C2] 0x0
| [   28.034549][    C2] Tainted: [W]=WARN
[   28.034550][    C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   28.034552][    C2] Call Trace:
[   28.034554][    C2]  <IRQ>
[   28.034556][    C2]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   28.034561][    C2]  __might_resched.cold (kernel/sched/core.c:9234)
[   28.034565][    C2]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   28.034568][    C2]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   28.034571][    C2]  ? __asan_memcpy (mm/kasan/shadow.c:106 (discriminator 1))
[   28.034574][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.034578][    C2]  __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))
[   28.034581][    C2]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   28.034583][    C2]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   28.034586][    C2]  ? 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)
[   28.034588][    C2]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   28.034590][    C2]  put_chars (drivers/char/virtio_console.c:1176)
[   28.034592][    C2]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   28.034594][    C2]  ? console_prepend_replay (kernel/printk/printk.c:3005)
[   28.034598][    C2]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   28.034601][    C2]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   28.034603][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.034605][    C2]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   28.034607][    C2]  console_emit_next_record (kernel/printk/printk.c:3183)
[   28.034609][    C2]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   28.034611][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.034613][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.034615][    C2]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   28.034616][    C2]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   28.034618][    C2]  console_flush_one_record (kernel/printk/printk.c:3268)
[   28.034621][    C2]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   28.034623][    C2]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   28.034625][    C2]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   28.034626][    C2]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   28.034628][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.034630][    C2]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   28.034631][    C2]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   28.034633][    C2]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   28.034635][    C2]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   28.034637][    C2]  vprintk_emit (kernel/printk/printk.c:2479)
[   28.034639][    C2]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   28.034641][    C2]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   28.034654][    C2]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   28.034656][    C2]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   28.034663][    C2]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   28.034669][    C2]  ? is_module_text_address (./include/linux/rcupdate.h:882 ./include/linux/rcupdate.h:1216 kernel/module/main.c:3934)
[   28.034673][    C2]  _printk (kernel/printk/printk.c:2504)
[   28.034676][    C2]  ? snapshot_read.cold (user.c:?)
[   28.034677][    C2]  ? arch_stack_walk (arch/x86/kernel/stacktrace.c:25)
[   28.034681][    C2]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   28.034684][    C2]  ? nbcon_cpu_emergency_enter (./include/linux/instrumented.h:112 ./include/linux/atomic/atomic-instrumented.h:435 kernel/printk/nbcon.c:1723)
[   28.034685][    C2]  print_irq_inversion_bug.part.0 (kernel/locking/lockdep.c:4097 (discriminator 1))
[   28.034687][    C2]  mark_lock_irq (kernel/locking/lockdep.c:4095 kernel/locking/lockdep.c:4174 kernel/locking/lockdep.c:4310)
[   28.034690][    C2]  mark_lock (kernel/locking/lockdep.c:4769)
[   28.034692][    C2]  mark_usage (kernel/locking/lockdep.c:4658)
[   28.034694][    C2]  __lock_acquire (kernel/locking/lockdep.c:5208)
[   28.034696][    C2]  lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   28.034698][    C2]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   28.034704][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.034706][    C2]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   28.034708][    C2]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   28.034714][    C2]  _raw_spin_lock (./include/linux/spinlock_api_smp.h:190 (discriminator 1) kernel/locking/spinlock.c:173 (discriminator 1))
[   28.034716][    C2]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   28.034722][    C2] br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   28.034729][    C2]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   28.034736][    C2]  call_timer_fn (kernel/time/timer.c:1748)
[   28.034739][    C2]  ? detach_if_pending (./include/linux/list.h:1159)
[   28.034740][    C2]  ? debug_object_active_state (lib/debugobjects.c:1122)
[   28.034744][    C2]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   28.034746][    C2]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   28.034747][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.034750][    C2]  __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2374)
[   28.034752][    C2]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   28.034759][    C2]  ? __bpf_trace_itimer_expire (./include/trace/events/timer.h:407)
[   28.034760][    C2]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   28.034763][    C2]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   28.034765][    C2]  run_timer_softirq (kernel/time/timer.c:2386 kernel/time/timer.c:2395 kernel/time/timer.c:2403)
[   28.034768][    C2]  ? __run_timers (./include/trace/events/timer.h:138 (discriminator 19))
[   28.034769][    C2]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   28.034772][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.034773][    C2]  handle_softirqs (kernel/softirq.c:645)
[   28.034775][    C2]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   28.034777][    C2]  ? _local_bh_enable (kernel/softirq.c:428 (discriminator 1))
[   28.034779][    C2]  __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
[   28.034780][    C2]  irq_exit_rcu (kernel/softirq.c:784)
[   28.034782][    C2]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1062 (discriminator 37) arch/x86/kernel/apic/apic.c:1062 (discriminator 37))
[   28.034785][    C2]  </IRQ>
[   28.034786][    C2]  <TASK>
[   28.034786][    C2]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   28.034788][    C2]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:674)
[   28.034790][    C2] RIP: 0010:pv_native_safe_halt (./arch/x86/include/asm/irqflags.h:48 arch/x86/kernel/paravirt.c:63)
[   28.034793][    C2] 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
[   28.034795][    C2] RSP: 0018:ffa0000000157e00 EFLAGS: 00000282
[   28.034798][    C2] RAX: 00000000000d43e3 RBX: ff11000001bec6c0 RCX: ffffffff956f0307
[   28.034800][    C2] RDX: ff11000001bec6c0 RSI: ffffffff98438af6 RDI: ffffffff97e8d8e0
[   28.034800][    C2] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[   28.034801][    C2] R10: 0000000000000002 R11: 0000000000000001 R12: 1ff400000002afc3
[   28.034802][    C2] R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000000
[   28.034804][    C2]  ? cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   28.034807][    C2]  default_idle (./arch/x86/include/asm/paravirt.h:62 arch/x86/kernel/process.c:768)
[   28.034809][    C2]  default_idle_call (kernel/sched/idle.c:122)
[   28.034811][    C2]  cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   28.034812][    C2]  ? arch_cpu_idle_exit+0x40/0x40
[   28.034814][    C2]  ? mark_tsc_async_resets (arch/x86/kernel/tsc_sync.c:49)
[   28.034817][    C2]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   28.034818][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.034820][    C2]  do_idle (kernel/sched/idle.c:355)
[   28.034821][    C2]  cpu_startup_entry (kernel/sched/idle.c:454)
[   28.034823][    C2]  start_secondary (arch/x86/kernel/smpboot.c:312)
[   28.034825][    C2]  ? set_cpu_sibling_map (arch/x86/kernel/smpboot.c:733 (discriminator 4))
[   28.034827][    C2]  common_startup_64 (arch/x86/kernel/head_64.S:418)
| [   28.091380][    C2]
| [   28.091448][    C2]
| [   28.091448][    C2] stack backtrace:
| [   28.091671][    C2] Tainted: [W]=WARN
[   28.091672][    C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   28.091673][    C2] Call Trace:
[   28.091674][    C2]  <IRQ>
[   28.091675][    C2]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   28.091679][    C2]  print_irq_inversion_bug.part.0.cold (kernel/locking/lockdep.c:4141)
[   28.091682][    C2]  mark_lock_irq (kernel/locking/lockdep.c:4095 kernel/locking/lockdep.c:4174 kernel/locking/lockdep.c:4310)
[   28.091685][    C2]  mark_lock (kernel/locking/lockdep.c:4769)
[   28.091687][    C2]  mark_usage (kernel/locking/lockdep.c:4658)
[   28.091688][    C2]  __lock_acquire (kernel/locking/lockdep.c:5208)
[   28.091691][    C2]  lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   28.091692][    C2]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   28.091700][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.091703][    C2]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   28.091705][    C2]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   28.091711][    C2]  _raw_spin_lock (./include/linux/spinlock_api_smp.h:190 (discriminator 1) kernel/locking/spinlock.c:173 (discriminator 1))
[   28.091713][    C2]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   28.091719][    C2] br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   28.091726][    C2]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   28.091733][    C2]  call_timer_fn (kernel/time/timer.c:1748)
[   28.091735][    C2]  ? detach_if_pending (./include/linux/list.h:1159)
[   28.091737][    C2]  ? debug_object_active_state (lib/debugobjects.c:1122)
[   28.091740][    C2]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   28.091741][    C2]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   28.091743][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.091745][    C2]  __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2374)
[   28.091747][    C2]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   28.091754][    C2]  ? __bpf_trace_itimer_expire (./include/trace/events/timer.h:407)
[   28.091756][    C2]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   28.091759][    C2]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   28.091761][    C2]  run_timer_softirq (kernel/time/timer.c:2386 kernel/time/timer.c:2395 kernel/time/timer.c:2403)
[   28.091763][    C2]  ? __run_timers (./include/trace/events/timer.h:138 (discriminator 19))
[   28.091765][    C2]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   28.091767][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.091769][    C2]  handle_softirqs (kernel/softirq.c:645)
[   28.091771][    C2]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   28.091772][    C2]  ? _local_bh_enable (kernel/softirq.c:428 (discriminator 1))
[   28.091774][    C2]  __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
[   28.091776][    C2]  irq_exit_rcu (kernel/softirq.c:784)
[   28.091777][    C2]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1062 (discriminator 37) arch/x86/kernel/apic/apic.c:1062 (discriminator 37))
[   28.091779][    C2]  </IRQ>
[   28.091779][    C2]  <TASK>
[   28.091780][    C2]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   28.091782][    C2]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:674)
[   28.091783][    C2] RIP: 0010:pv_native_safe_halt (./arch/x86/include/asm/irqflags.h:48 arch/x86/kernel/paravirt.c:63)
[   28.091785][    C2] 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
[   28.091787][    C2] RSP: 0018:ffa0000000157e00 EFLAGS: 00000282
[   28.091788][    C2] RAX: 00000000000d43e3 RBX: ff11000001bec6c0 RCX: ffffffff956f0307
[   28.091790][    C2] RDX: ff11000001bec6c0 RSI: ffffffff98438af6 RDI: ffffffff97e8d8e0
[   28.091791][    C2] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[   28.091791][    C2] R10: 0000000000000002 R11: 0000000000000001 R12: 1ff400000002afc3
[   28.091792][    C2] R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000000
[   28.091794][    C2]  ? cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   28.091796][    C2]  default_idle (./arch/x86/include/asm/paravirt.h:62 arch/x86/kernel/process.c:768)
[   28.091798][    C2]  default_idle_call (kernel/sched/idle.c:122)
[   28.091799][    C2]  cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   28.091801][    C2]  ? arch_cpu_idle_exit+0x40/0x40
[   28.091802][    C2]  ? mark_tsc_async_resets (arch/x86/kernel/tsc_sync.c:49)
[   28.091804][    C2]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   28.091805][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.091807][    C2]  do_idle (kernel/sched/idle.c:355)
[   28.091809][    C2]  cpu_startup_entry (kernel/sched/idle.c:454)
[   28.091810][    C2]  start_secondary (arch/x86/kernel/smpboot.c:312)
[   28.091812][    C2]  ? set_cpu_sibling_map (arch/x86/kernel/smpboot.c:733 (discriminator 4))
[   28.091814][    C2]  common_startup_64 (arch/x86/kernel/head_64.S:418)
| [   66.360071][   T12] softirqs last disabled at (30065): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   66.360074][   T12] Preemption disabled at:
| [   66.360075][   T12] vprintk_emit (kernel/printk/printk.c:2471)
| [   66.360090][   T12] Tainted: [W]=WARN
[   66.360091][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   66.360093][   T12] Workqueue: netns cleanup_net
[   66.360100][   T12] Call Trace:
[   66.360103][   T12]  <TASK>
[   66.360104][   T12]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   66.360111][   T12]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   66.360114][   T12]  __might_resched.cold (kernel/sched/core.c:9234)
[   66.360119][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   66.360123][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   66.360128][   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))
[   66.360132][   T12]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   66.360136][   T12]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   66.360141][   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)
[   66.360144][   T12]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   66.360147][   T12]  put_chars (drivers/char/virtio_console.c:1176)
[   66.360149][   T12]  ? desc_read_finalized_seq (kernel/printk/printk_ringbuffer.c:1934)
[   66.360152][   T12]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   66.360155][   T12]  ? console_prepend_replay (kernel/printk/printk.c:3005)
[   66.360159][   T12]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   66.360164][   T12]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   66.360166][   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)
[   66.360168][   T12]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   66.360171][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   66.360173][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   66.360176][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   66.360179][   T12]  console_emit_next_record (kernel/printk/printk.c:3183)
[   66.360183][   T12]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   66.360186][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   66.360188][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   66.360191][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   66.360193][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   66.360197][   T12]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   66.360199][   T12]  console_flush_one_record (kernel/printk/printk.c:3268)
[   66.360203][   T12]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   66.360207][   T12]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   66.360209][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   66.360212][   T12]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   66.360214][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   66.360217][   T12]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   66.360219][   T12]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   66.360222][   T12]  ? __rcu_read_lock (kernel/rcu/tree_plugin.h:391 (discriminator 6) kernel/rcu/tree_plugin.h:414 (discriminator 6))
[   66.360225][   T12]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   66.360227][   T12]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   66.360230][   T12]  vprintk_emit (kernel/printk/printk.c:2479)
[   66.360234][   T12]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   66.360236][   T12]  ? process_one_work (kernel/workqueue.c:3387)
[   66.360240][   T12]  ? kthread (kernel/kthread.c:436)
[   66.360242][   T12]  ? ret_from_fork (arch/x86/kernel/process.c:158)
[   66.360246][   T12]  ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
[   66.360250][   T12]  _printk (kernel/printk/printk.c:2504)
[   66.360254][   T12]  ? snapshot_read.cold (user.c:?)
[   66.360257][   T12]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   66.360261][   T12]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   66.360264][   T12]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   66.360267][   T12]  ? netdev_notice (net/core/dev.c:13194)
[   66.360270][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   66.360273][   T12]  ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1))
[   66.360275][   T12]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:78)
[   66.360279][   T12]  ? down_write_nested (kernel/locking/rwsem.c:1759)
[   66.360281][   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)
[   66.360285][   T12]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[   66.360289][   T12]  dev_set_allmulti (net/core/dev_api.c:315)
[   66.360293][   T12] del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341) bridge
[   66.360312][   T12] br_dev_delete (net/bridge/br_if.c:387) bridge
[   66.360329][   T12] br_net_exit_rtnl (net/bridge/br.c:414) bridge
[   66.360342][   T12]  ops_undo_list (net/core/net_namespace.c:181 net/core/net_namespace.c:249)
[   66.360345][   T12]  ? rtnl_net_dumpid_one (net/core/net_namespace.c:1098)
[   66.360348][   T12]  ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563)
[   66.360353][   T12]  cleanup_net (net/core/net_namespace.c:706)
[   66.360356][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   66.360359][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   66.360361][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   66.360365][   T12]  process_one_work (kernel/workqueue.c:3387)
[   66.360369][   T12]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[   66.360372][   T12]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   66.360375][   T12]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   66.360379][   T12]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   66.360384][   T12]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   66.360392][   T12]  kthread (kernel/kthread.c:436)
[   66.360394][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   66.360396][   T12]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   66.360399][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   66.360402][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[   66.360405][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   66.360408][   T12]  ? kthread_affine_preferred (kernel/kthread.c:857)


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