======================================
| [   10.201510][  T186] softirqs last disabled at (43352): netlink_release (./include/net/sock.h:2138 net/netlink/af_netlink.c:727)
| [   10.201512][  T186] Preemption disabled at:
| [   10.201512][  T186] 0x0
| [   10.201522][  T186] Tainted: [W]=WARN
[   10.201523][  T186] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.201525][  T186] Call Trace:
[   10.201526][  T186]  <TASK>
[   10.201528][  T186]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   10.201534][  T186]  __might_resched.cold (kernel/sched/core.c:9234)
[   10.201538][  T186]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   10.201542][  T186]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   10.201548][  T186]  __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))
[   10.201550][  T186]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.201555][  T186]  ? 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)
[   10.201558][  T186]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.201561][  T186]  put_chars (drivers/char/virtio_console.c:1176)
[   10.201564][  T186]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   10.201565][  T186]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   10.201570][  T186]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   10.201577][  T186]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   10.201583][  T186]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   10.201585][  T186]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.201587][  T186]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.201591][  T186]  console_emit_next_record (kernel/printk/printk.c:3183)
[   10.201595][  T186]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   10.201597][  T186]  ? 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))
[   10.201600][  T186]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.201602][  T186]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.201606][  T186]  console_flush_one_record (kernel/printk/printk.c:3268)
[   10.201610][  T186]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   10.201612][  T186]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.201617][  T186]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   10.201619][  T186]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   10.201621][  T186]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.201623][  T186]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   10.201627][  T186]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   10.201628][  T186]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   10.201632][  T186]  vprintk_emit (kernel/printk/printk.c:2479)
[   10.201635][  T186]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   10.201639][  T186]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.201642][  T186]  _printk (kernel/printk/printk.c:2504)
[   10.201646][  T186]  ? snapshot_read.cold (user.c:?)
[   10.201649][  T186]  ? 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)
[   10.201651][  T186]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   10.201655][  T186]  ? 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)
[   10.201658][  T186]  do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4))
[   10.201661][  T186]  ? exit_notify (kernel/exit.c:780)
[   10.201663][  T186]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   10.201666][  T186]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.201670][  T186]  do_group_exit (kernel/exit.c:1151)
[   10.201672][  T186]  __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160)
[   10.201674][  T186]  x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232)
[   10.201676][  T186]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   10.201679][  T186]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   10.201682][  T186]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.201684][  T186] RIP: 0033:0x7f5535bb01b8
[   10.201687][  T186] Code: Unable to access opcode bytes at 0x7f5535bb018e.

Code starting with the faulting instruction
===========================================
[   10.201688][  T186] RSP: 002b:00007ffcba9fb3c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[   10.201690][  T186] RAX: ffffffffffffffda RBX: 00007f5535ce0f88 RCX: 00007f5535bb01b8
[   10.201691][  T186] RDX: 00007f55358fafc8 RSI: fffffffffffffeb8 RDI: 0000000000000000
[   10.201692][  T186] RBP: 00007ffcba9fb420 R08: 0000000000000000 R09: 0000000000008010
[   10.201693][  T186] R10: 00007ffcba9fb1e0 R11: 0000000000000246 R12: 0000000000000001
[   10.201694][  T186] R13: 0000000000000000 R14: 00007f5535cdf680 R15: 00007f5535ce0fa0
| [   12.076544][  T266] softirqs last disabled at (13114): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   12.076546][  T266] Preemption disabled at:
| [   12.076547][  T266] vprintk_emit (kernel/printk/printk.c:2471)
| [   12.076556][  T266] Tainted: [W]=WARN
[   12.076557][  T266] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.076558][  T266] Call Trace:
[   12.076560][  T266]  <TASK>
[   12.076562][  T266]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   12.076567][  T266]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   12.076569][  T266]  __might_resched.cold (kernel/sched/core.c:9234)
[   12.076574][  T266]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   12.076579][  T266]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   12.076584][  T266]  __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))
[   12.076586][  T266]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.076591][  T266]  ? 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)
[   12.076594][  T266]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.076597][  T266]  put_chars (drivers/char/virtio_console.c:1176)
[   12.076600][  T266]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   12.076605][  T266]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   12.076608][  T266]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   12.076611][  T266]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   12.076612][  T266]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.076614][  T266]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.076618][  T266]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   12.076620][  T266]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   12.076623][  T266]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.076627][  T266]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.076631][  T266]  console_emit_next_record (kernel/printk/printk.c:3183)
[   12.076635][  T266]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   12.076636][  T266]  ? 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))
[   12.076639][  T266]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.076642][  T266]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.076646][  T266]  console_flush_one_record (kernel/printk/printk.c:3268)
[   12.076650][  T266]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   12.076651][  T266]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.076657][  T266]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   12.076659][  T266]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   12.076661][  T266]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.076663][  T266]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   12.076667][  T266]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   12.076669][  T266]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   12.076672][  T266]  vprintk_emit (kernel/printk/printk.c:2479)
[   12.076676][  T266]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   12.076678][  T266]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   12.076680][  T266]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   12.076684][  T266]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   12.076687][  T266]  _printk (kernel/printk/printk.c:2504)
[   12.076691][  T266]  ? snapshot_read.cold (user.c:?)
[   12.076695][  T266]  ? br_multicast_flood (??:?) bridge
[   12.076712][  T266]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   12.076713][  T266]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   12.076714][  T266]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   12.076719][  T266] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   12.076728][  T266] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   12.076737][  T266] new_nbp (net/bridge/br_if.c:449) bridge
[   12.076746][  T266] br_add_if (net/bridge/br_if.c:592) bridge
[   12.076754][  T266]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   12.076758][  T266]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   12.076760][  T266]  ? __kernel_text_address (kernel/extable.c:79)
[   12.076764][  T266]  do_set_master (net/core/rtnetlink.c:3071)
[   12.076769][  T266]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   12.076772][  T266]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   12.076775][  T266]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   12.076776][  T266]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   12.076778][  T266]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   12.076782][  T266]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   12.076784][  T266]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   12.076786][  T266]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   12.076789][  T266]  ? kasan_save_stack (mm/kasan/common.c:58)
[   12.076792][  T266]  ? kasan_save_stack (mm/kasan/common.c:57)
[   12.076793][  T266]  ? kasan_save_track (mm/kasan/common.c:78)
[   12.076796][  T266]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.076798][  T266]  ? netlink_seq_next (net/netlink/af_netlink.c:2685)
[   12.076800][  T266]  ? ___sys_sendmsg (net/socket.c:2757)
[   12.076805][  T266]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.076807][  T266]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   12.076809][  T266]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.076811][  T266]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.076813][  T266]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.076815][  T266]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.076817][  T266]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   12.076821][  T266]  ? __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)
[   12.076822][  T266]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   12.076824][  T266]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   12.076828][  T266]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   12.076829][  T266]  ? nla_get_range_signed (lib/nlattr.c:270)
[   12.076834][  T266]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   12.076839][  T266]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   12.076844][  T266]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   12.076846][  T266]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.076850][  T266]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.076852][  T266]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.076854][  T266]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   12.076856][  T266]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   12.076860][  T266]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   12.076862][  T266]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   12.076865][  T266]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   12.076866][  T266]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.076870][  T266]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.076872][  T266]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.076875][  T266]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   12.076877][  T266]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   12.076880][  T266]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   12.076886][  T266]  ? 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))
[   12.076888][  T266]  ? 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))
[   12.076892][  T266]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   12.076895][  T266]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   12.076898][  T266]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.076902][  T266]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   12.076905][  T266]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   12.076909][  T266]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   12.076914][  T266]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   12.076916][  T266]  ? copy_msghdr_from_user (net/socket.c:2650)
[   12.076919][  T266]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   12.076920][  T266]  ? move_addr_to_kernel (net/socket.c:258)
[   12.076927][  T266]  ___sys_sendmsg (net/socket.c:2767)
[   12.076930][  T266]  ? copy_msghdr_from_user (net/socket.c:2619)
[   12.076945][  T266]  __sys_sendmsg (net/socket.c:2799)
[   12.076948][  T266]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   12.076954][  T266]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.076958][  T266]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   12.076960][  T266]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   12.076963][  T266]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.076965][  T266] RIP: 0033:0x7f2b732f854e
[   12.076969][  T266] 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
[   12.076971][  T266] RSP: 002b:00007ffdb790ef20 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   12.076973][  T266] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f2b732f854e
[   12.076975][  T266] RDX: 0000000000000000 RSI: 00007ffdb790efd0 RDI: 0000000000000005
[   12.076976][  T266] RBP: 00007ffdb790ef30 R08: 0000000000000000 R09: 0000000000000000
[   12.076976][  T266] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a910742
[   12.076977][  T266] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffdb790f690
| [   27.503403][    C0] softirqs last disabled at (1031829): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   27.503405][    C0] Preemption disabled at:
| [   27.503406][    C0] schedule_preempt_disabled (kernel/sched/core.c:7420)
| [   27.503415][    C0] Tainted: [W]=WARN
[   27.503415][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   27.503417][    C0] Call Trace:
[   27.503419][    C0]  <IRQ>
[   27.503420][    C0]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   27.503426][    C0]  ? schedule_preempt_disabled (kernel/sched/core.c:7420)
[   27.503427][    C0]  __might_resched.cold (kernel/sched/core.c:9234)
[   27.503431][    C0]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   27.503434][    C0]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   27.503438][    C0]  ? __asan_memcpy (mm/kasan/shadow.c:106 (discriminator 1))
[   27.503440][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.503443][    C0]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   27.503445][    C0]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   27.503448][    C0]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   27.503452][    C0]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   27.503453][    C0]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   27.503455][    C0]  put_chars (drivers/char/virtio_console.c:1176)
[   27.503457][    C0]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   27.503459][    C0]  ? console_prepend_replay (kernel/printk/printk.c:3005)
[   27.503462][    C0]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   27.503465][    C0]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   27.503467][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.503469][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   27.503471][    C0]  console_emit_next_record (kernel/printk/printk.c:3183)
[   27.503473][    C0]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   27.503476][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.503477][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.503479][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   27.503481][    C0]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   27.503483][    C0]  console_flush_one_record (kernel/printk/printk.c:3268)
[   27.503485][    C0]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   27.503488][    C0]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   27.503490][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   27.503491][    C0]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   27.503493][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.503494][    C0]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   27.503496][    C0]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   27.503498][    C0]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   27.503500][    C0]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   27.503502][    C0]  vprintk_emit (kernel/printk/printk.c:2479)
[   27.503504][    C0]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   27.503506][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.503508][    C0]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   27.503509][    C0]  ? x86_64_start_kernel (arch/x86/kernel/head64.c:264)
[   27.503514][    C0]  _printk (kernel/printk/printk.c:2504)
[   27.503517][    C0]  ? snapshot_read.cold (user.c:?)
[   27.503519][    C0]  ? arch_stack_walk (arch/x86/kernel/stacktrace.c:25)
[   27.503523][    C0]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   27.503525][    C0]  ? nbcon_cpu_emergency_enter (./include/linux/instrumented.h:112 ./include/linux/atomic/atomic-instrumented.h:435 kernel/printk/nbcon.c:1723)
[   27.503527][    C0]  print_irq_inversion_bug.part.0 (kernel/locking/lockdep.c:4097 (discriminator 1))
[   27.503529][    C0]  mark_lock_irq (kernel/locking/lockdep.c:4095 kernel/locking/lockdep.c:4174 kernel/locking/lockdep.c:4310)
[   27.503532][    C0]  mark_lock (kernel/locking/lockdep.c:4769)
[   27.503534][    C0]  mark_usage (kernel/locking/lockdep.c:4658)
[   27.503536][    C0]  __lock_acquire (kernel/locking/lockdep.c:5208)
[   27.503538][    C0]  lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   27.503540][    C0]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   27.503552][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.503554][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   27.503556][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   27.503562][    C0]  _raw_spin_lock (./include/linux/spinlock_api_smp.h:190 (discriminator 1) kernel/locking/spinlock.c:173 (discriminator 1))
[   27.503564][    C0]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   27.503570][    C0] br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   27.503577][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   27.503583][    C0]  call_timer_fn (kernel/time/timer.c:1748)
[   27.503587][    C0]  ? detach_if_pending (./include/linux/list.h:1159)
[   27.503588][    C0]  ? debug_object_active_state (lib/debugobjects.c:1122)
[   27.503592][    C0]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   27.503594][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   27.503595][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.503598][    C0]  __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2374)
[   27.503599][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   27.503607][    C0]  ? __bpf_trace_itimer_expire (./include/trace/events/timer.h:407)
[   27.503609][    C0]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   27.503611][    C0]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   27.503614][    C0]  run_timer_softirq (kernel/time/timer.c:2386 kernel/time/timer.c:2395 kernel/time/timer.c:2403)
[   27.503616][    C0]  ? __run_timers (./include/trace/events/timer.h:138 (discriminator 19))
[   27.503617][    C0]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   27.503620][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.503621][    C0]  handle_softirqs (kernel/softirq.c:645)
[   27.503623][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   27.503625][    C0]  ? _local_bh_enable (kernel/softirq.c:428 (discriminator 1))
[   27.503627][    C0]  __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
[   27.503628][    C0]  irq_exit_rcu (kernel/softirq.c:784)
[   27.503630][    C0]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1062 (discriminator 37) arch/x86/kernel/apic/apic.c:1062 (discriminator 37))
[   27.503633][    C0]  </IRQ>
[   27.503633][    C0]  <TASK>
[   27.503634][    C0]  ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4427 (discriminator 2))
[   27.503636][    C0]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:674)
[   27.503638][    C0] RIP: 0010:pv_native_safe_halt (./arch/x86/include/asm/irqflags.h:48 arch/x86/kernel/paravirt.c:63)
[   27.503640][    C0] Code: 48 8b 3d 94 e2 f5 01 e8 1f 00 00 00 48 2b 05 58 a3 95 00 c3 0f 1f 80 00 00 00 00 f3 0f 1e fa eb 07 0f 00 2d 13 96 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 e2 f5 01 	mov    0x1f5e294(%rip),%rdi        # 0x1f5e29b
   7:	e8 1f 00 00 00       	call   0x2b
   c:	48 2b 05 58 a3 95 00 	sub    0x95a358(%rip),%rax        # 0x95a36b
  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 96 11 00 	verw   0x119613(%rip)        # 0x11963b
  28:	fb                   	sti
  29:	f4                   	hlt
  2a:*	c3                   	ret		<-- trapping instruction
  2b:	0f 1f 40 d6          	nopl   -0x2a(%rax)
  2f:	48 83 ec 20          	sub    $0x20,%rsp
  33:	8b 17                	mov    (%rdi),%edx
  35:	49 89 f8             	mov    %rdi,%r8
  38:	83 e2 fe             	and    $0xfffffffe,%edx
  3b:	41 89 d2             	mov    %edx,%r10d
  3e:	0f                   	.byte 0xf
  3f:	01                   	.byte 0x1

Code starting with the faulting instruction
===========================================
   0:	c3                   	ret
   1:	0f 1f 40 d6          	nopl   -0x2a(%rax)
   5:	48 83 ec 20          	sub    $0x20,%rsp
   9:	8b 17                	mov    (%rdi),%edx
   b:	49 89 f8             	mov    %rdi,%r8
   e:	83 e2 fe             	and    $0xfffffffe,%edx
  11:	41 89 d2             	mov    %edx,%r10d
  14:	0f                   	.byte 0xf
  15:	01                   	.byte 0x1
[   27.503642][    C0] RSP: 0018:ffffffff94c07cf8 EFLAGS: 00000296
[   27.503645][    C0] RAX: 00000000000fbe93 RBX: ffffffff94c1c600 RCX: ffffffff91cf0307
[   27.503646][    C0] RDX: ffffffff94c1c600 RSI: ffffffff94a38b01 RDI: ffffffff9448d8e0
[   27.503647][    C0] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[   27.503648][    C0] R10: 0000000000000000 R11: 0000000000000001 R12: 1ffffffff2980fa2
[   27.503649][    C0] R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000014770
[   27.503651][    C0]  ? cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   27.503654][    C0]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   27.503655][    C0]  default_idle (./arch/x86/include/asm/paravirt.h:62 arch/x86/kernel/process.c:768)
[   27.503657][    C0]  default_idle_call (kernel/sched/idle.c:122)
[   27.503659][    C0]  cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   27.503660][    C0]  ? arch_cpu_idle_exit+0x40/0x40
[   27.503662][    C0]  ? mark_tsc_async_resets (arch/x86/kernel/tsc_sync.c:49)
[   27.503664][    C0]  ? check_preemption_disabled (lib/smp_processor_id.c:47)
[   27.503666][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.503668][    C0]  do_idle (kernel/sched/idle.c:355)
[   27.503670][    C0]  cpu_startup_entry (kernel/sched/idle.c:454)
[   27.503671][    C0]  rest_init (init/main.c:727)
[   27.503673][    C0]  ? __cpuidle_text_end (??:?)
[   27.503676][    C0]  ? rest_init (init/main.c:727)
[   27.503678][    C0]  ? acpi_hw_set_mode (drivers/acpi/acpica/hwacpi.c:72 (discriminator 1))
[   27.503681][    C0]  ? cpus_read_unlock (./include/linux/percpu-rwsem.h:125 (discriminator 1) kernel/cpu.c:502 (discriminator 1))
[   27.503684][    C0]  ? acpi_enable (drivers/acpi/acpica/evxfevnt.c:47)
[   27.503687][    C0]  start_kernel (init/main.c:1185)
[   27.503689][    C0]  x86_64_start_reservations (arch/x86/kernel/head64.c:310)
[   27.503691][    C0]  x86_64_start_kernel (arch/x86/kernel/head64.c:291)
[   27.503693][    C0]  common_startup_64 (arch/x86/kernel/head_64.S:418)
| [   27.577026][    C0]
| [   27.577100][    C0]
| [   27.577100][    C0] stack backtrace:
| [   27.577292][    C0] Tainted: [W]=WARN
[   27.577293][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   27.577294][    C0] Call Trace:
[   27.577295][    C0]  <IRQ>
[   27.577295][    C0]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   27.577299][    C0]  print_irq_inversion_bug.part.0.cold (kernel/locking/lockdep.c:4141)
[   27.577301][    C0]  mark_lock_irq (kernel/locking/lockdep.c:4095 kernel/locking/lockdep.c:4174 kernel/locking/lockdep.c:4310)
[   27.577304][    C0]  mark_lock (kernel/locking/lockdep.c:4769)
[   27.577306][    C0]  mark_usage (kernel/locking/lockdep.c:4658)
[   27.577308][    C0]  __lock_acquire (kernel/locking/lockdep.c:5208)
[   27.577310][    C0]  lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   27.577312][    C0]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   27.577319][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.577322][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   27.577323][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   27.577330][    C0]  _raw_spin_lock (./include/linux/spinlock_api_smp.h:190 (discriminator 1) kernel/locking/spinlock.c:173 (discriminator 1))
[   27.577331][    C0]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   27.577338][    C0] br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   27.577349][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   27.577355][    C0]  call_timer_fn (kernel/time/timer.c:1748)
[   27.577357][    C0]  ? detach_if_pending (./include/linux/list.h:1159)
[   27.577359][    C0]  ? debug_object_active_state (lib/debugobjects.c:1122)
[   27.577362][    C0]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   27.577364][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   27.577365][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.577368][    C0]  __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2374)
[   27.577370][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   27.577376][    C0]  ? __bpf_trace_itimer_expire (./include/trace/events/timer.h:407)
[   27.577378][    C0]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   27.577381][    C0]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   27.577383][    C0]  run_timer_softirq (kernel/time/timer.c:2386 kernel/time/timer.c:2395 kernel/time/timer.c:2403)
[   27.577385][    C0]  ? __run_timers (./include/trace/events/timer.h:138 (discriminator 19))
[   27.577387][    C0]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   27.577389][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.577391][    C0]  handle_softirqs (kernel/softirq.c:645)
[   27.577393][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   27.577394][    C0]  ? _local_bh_enable (kernel/softirq.c:428 (discriminator 1))
[   27.577396][    C0]  __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
[   27.577398][    C0]  irq_exit_rcu (kernel/softirq.c:784)
[   27.577399][    C0]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1062 (discriminator 37) arch/x86/kernel/apic/apic.c:1062 (discriminator 37))
[   27.577401][    C0]  </IRQ>
[   27.577402][    C0]  <TASK>
[   27.577402][    C0]  ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4427 (discriminator 2))
[   27.577404][    C0]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:674)
[   27.577405][    C0] RIP: 0010:pv_native_safe_halt (./arch/x86/include/asm/irqflags.h:48 arch/x86/kernel/paravirt.c:63)
[   27.577407][    C0] Code: 48 8b 3d 94 e2 f5 01 e8 1f 00 00 00 48 2b 05 58 a3 95 00 c3 0f 1f 80 00 00 00 00 f3 0f 1e fa eb 07 0f 00 2d 13 96 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 e2 f5 01 	mov    0x1f5e294(%rip),%rdi        # 0x1f5e29b
   7:	e8 1f 00 00 00       	call   0x2b
   c:	48 2b 05 58 a3 95 00 	sub    0x95a358(%rip),%rax        # 0x95a36b
  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 96 11 00 	verw   0x119613(%rip)        # 0x11963b
  28:	fb                   	sti
  29:	f4                   	hlt
  2a:*	c3                   	ret		<-- trapping instruction
  2b:	0f 1f 40 d6          	nopl   -0x2a(%rax)
  2f:	48 83 ec 20          	sub    $0x20,%rsp
  33:	8b 17                	mov    (%rdi),%edx
  35:	49 89 f8             	mov    %rdi,%r8
  38:	83 e2 fe             	and    $0xfffffffe,%edx
  3b:	41 89 d2             	mov    %edx,%r10d
  3e:	0f                   	.byte 0xf
  3f:	01                   	.byte 0x1

Code starting with the faulting instruction
===========================================
   0:	c3                   	ret
   1:	0f 1f 40 d6          	nopl   -0x2a(%rax)
   5:	48 83 ec 20          	sub    $0x20,%rsp
   9:	8b 17                	mov    (%rdi),%edx
   b:	49 89 f8             	mov    %rdi,%r8
   e:	83 e2 fe             	and    $0xfffffffe,%edx
  11:	41 89 d2             	mov    %edx,%r10d
  14:	0f                   	.byte 0xf
  15:	01                   	.byte 0x1
[   27.577409][    C0] RSP: 0018:ffffffff94c07cf8 EFLAGS: 00000296
[   27.577410][    C0] RAX: 00000000000fbe93 RBX: ffffffff94c1c600 RCX: ffffffff91cf0307
[   27.577412][    C0] RDX: ffffffff94c1c600 RSI: ffffffff94a38b01 RDI: ffffffff9448d8e0
[   27.577412][    C0] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[   27.577413][    C0] R10: 0000000000000000 R11: 0000000000000001 R12: 1ffffffff2980fa2
[   27.577414][    C0] R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000014770
[   27.577415][    C0]  ? cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   27.577417][    C0]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   27.577419][    C0]  default_idle (./arch/x86/include/asm/paravirt.h:62 arch/x86/kernel/process.c:768)
[   27.577421][    C0]  default_idle_call (kernel/sched/idle.c:122)
[   27.577422][    C0]  cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   27.577424][    C0]  ? arch_cpu_idle_exit+0x40/0x40
[   27.577426][    C0]  ? mark_tsc_async_resets (arch/x86/kernel/tsc_sync.c:49)
[   27.577428][    C0]  ? check_preemption_disabled (lib/smp_processor_id.c:47)
[   27.577430][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.577432][    C0]  do_idle (kernel/sched/idle.c:355)
[   27.577433][    C0]  cpu_startup_entry (kernel/sched/idle.c:454)
[   27.577435][    C0]  rest_init (init/main.c:727)
[   27.577437][    C0]  ? __cpuidle_text_end (??:?)
[   27.577439][    C0]  ? rest_init (init/main.c:727)
[   27.577441][    C0]  ? acpi_hw_set_mode (drivers/acpi/acpica/hwacpi.c:72 (discriminator 1))
[   27.577444][    C0]  ? cpus_read_unlock (./include/linux/percpu-rwsem.h:125 (discriminator 1) kernel/cpu.c:502 (discriminator 1))
[   27.577447][    C0]  ? acpi_enable (drivers/acpi/acpica/evxfevnt.c:47)
[   27.577449][    C0]  start_kernel (init/main.c:1185)
[   27.577451][    C0]  x86_64_start_reservations (arch/x86/kernel/head64.c:310)
[   27.577453][    C0]  x86_64_start_kernel (arch/x86/kernel/head64.c:291)
[   27.577454][    C0]  common_startup_64 (arch/x86/kernel/head_64.S:418)
| [   50.506664][ T2057] softirqs last disabled at (0): 0x0
| [   50.506666][ T2057] Preemption disabled at:
| [   50.506666][ T2057] 0x0
| [   50.506674][ T2057] Tainted: [W]=WARN
[   50.506675][ T2057] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   50.506677][ T2057] Call Trace:
[   50.506679][ T2057]  <TASK>
[   50.506680][ T2057]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   50.506685][ T2057]  __might_resched.cold (kernel/sched/core.c:9234)
[   50.506688][ T2057]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   50.506692][ T2057]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   50.506696][ T2057]  __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))
[   50.506699][ T2057]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   50.506702][ T2057]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   50.506705][ T2057]  ? 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)
[   50.506707][ T2057]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   50.506709][ T2057]  put_chars (drivers/char/virtio_console.c:1176)
[   50.506711][ T2057]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   50.506712][ T2057]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   50.506716][ T2057]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   50.506719][ T2057]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   50.506721][ T2057]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   50.506722][ T2057]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   50.506724][ T2057]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   50.506726][ T2057]  console_emit_next_record (kernel/printk/printk.c:3183)
[   50.506729][ T2057]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   50.506730][ T2057]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   50.506732][ T2057]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   50.506734][ T2057]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   50.506735][ T2057]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   50.506737][ T2057]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   50.506739][ T2057]  console_flush_one_record (kernel/printk/printk.c:3268)
[   50.506741][ T2057]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   50.506744][ T2057]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   50.506746][ T2057]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   50.506753][ T2057]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   50.506755][ T2057]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   50.506756][ T2057]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   50.506758][ T2057]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   50.506759][ T2057]  ? __rcu_read_lock (kernel/rcu/tree_plugin.h:391 (discriminator 6) kernel/rcu/tree_plugin.h:414 (discriminator 6))
[   50.506761][ T2057]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   50.506763][ T2057]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   50.506765][ T2057]  vprintk_emit (kernel/printk/printk.c:2479)
[   50.506767][ T2057]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   50.506769][ T2057]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   50.506771][ T2057]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   50.506773][ T2057]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:78)
[   50.506775][ T2057]  _printk (kernel/printk/printk.c:2504)
[   50.506778][ T2057]  ? snapshot_read.cold (user.c:?)
[   50.506780][ T2057]  ? ipv6_mc_down (net/ipv6/mcast.c:1137 net/ipv6/mcast.c:2792)
[   50.506784][ T2057] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   50.506798][ T2057] br_stp_disable_port (net/bridge/br_stp_if.c:106) bridge
[   50.506809][ T2057] br_device_event (net/bridge/br.c:111) bridge
[   50.506819][ T2057]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   50.506822][ T2057]  ? _sub_I_65535_1+0x4d0/0x4d0 stp
[   50.506824][ T2057]  ? addrconf_notify (net/ipv6/addrconf.c:3812)
[   50.506828][ T2057]  notifier_call_chain (kernel/notifier.c:85)
[   50.506831][ T2057]  __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855)
[   50.506834][ T2057]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   50.506836][ T2057]  ? netif_change_name (net/core/dev.c:1517)
[   50.506838][ T2057]  ? netif_set_allmulti (./include/net/netdev_lock.h:30 (discriminator 1))
[   50.506840][ T2057]  ? __kernel_text_address (kernel/extable.c:79)
[   50.506842][ T2057]  ? write_profile (profile.c:?)
[   50.506844][ T2057]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   50.506847][ T2057]  netif_change_flags (net/core/dev.c:9882)
[   50.506849][ T2057]  do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1))
[   50.506852][ T2057]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   50.506853][ T2057]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   50.506854][ T2057]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   50.506856][ T2057]  ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[   50.506860][ T2057]  ? kasan_save_stack (mm/kasan/common.c:58)
[   50.506863][ T2057]  ? kasan_save_stack (mm/kasan/common.c:57)
[   50.506864][ T2057]  ? kasan_save_track (mm/kasan/common.c:78)
[   50.506866][ T2057]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   50.506867][ T2057]  ? __kmalloc_cache_noprof (./include/linux/kasan.h:263 mm/slub.c:5563)
[   50.506869][ T2057]  ? rtnl_newlink (./include/linux/slab.h:991 (discriminator 1) net/core/rtnetlink.c:4113 (discriminator 1))
[   50.506870][ T2057]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   50.506871][ T2057]  ? netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   50.506874][ T2057]  ? netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   50.506875][ T2057]  ? netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   50.506877][ T2057]  ? ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   50.506879][ T2057]  ? ___sys_sendmsg (net/socket.c:2767)
[   50.506880][ T2057]  ? __sys_sendmsg (net/socket.c:2799)
[   50.506882][ T2057]  ? do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   50.506884][ T2057]  ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   50.506886][ T2057]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   50.506888][ T2057]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   50.506889][ T2057]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   50.506891][ T2057]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   50.506893][ T2057]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   50.506896][ T2057]  ? __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)
[   50.506897][ T2057]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   50.506898][ T2057]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   50.506900][ T2057]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   50.506902][ T2057]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   50.506904][ T2057]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   50.506906][ T2057]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   50.506908][ T2057]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   50.506909][ T2057]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   50.506910][ T2057]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   50.506912][ T2057]  ? is_bpf_text_address (./include/linux/rcupdate.h:850 kernel/bpf/core.c:749)
[   50.506915][ T2057]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   50.506917][ T2057]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   50.506918][ T2057]  ? __kernel_text_address (kernel/extable.c:79)
[   50.506919][ T2057]  ? write_profile (profile.c:?)
[   50.506921][ T2057]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   50.506922][ T2057]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   50.506924][ T2057]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   50.506925][ T2057]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   50.506929][ T2057]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   50.506930][ T2057]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   50.506932][ T2057]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   50.506933][ T2057]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   50.506935][ T2057]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   50.506936][ T2057]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[   50.506937][ T2057]  ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[   50.506940][ T2057]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   50.506941][ T2057]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   50.506942][ T2057]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   50.506944][ T2057]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   50.506945][ T2057]  ? __netlink_lookup (./include/linux/rcupdate.h:850 ./include/linux/rhashtable.h:709 net/netlink/af_netlink.c:499)
[   50.506948][ T2057]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   50.506950][ T2057]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   50.506951][ T2057]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   50.506953][ T2057]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   50.506955][ T2057]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   50.506957][ T2057]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   50.506958][ T2057]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   50.506960][ T2057]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   50.506962][ T2057]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   50.506964][ T2057]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   50.506965][ T2057]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   50.506967][ T2057]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   50.506969][ T2057]  ? copy_msghdr_from_user (net/socket.c:2650)
[   50.506970][ T2057]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   50.506972][ T2057]  ? move_addr_to_kernel (net/socket.c:258)
[   50.506973][ T2057]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[   50.506976][ T2057]  ___sys_sendmsg (net/socket.c:2767)
[   50.506977][ T2057]  ? copy_msghdr_from_user (net/socket.c:2619)
[   50.506982][ T2057]  __sys_sendmsg (net/socket.c:2799)
[   50.506984][ T2057]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   50.506987][ T2057]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   50.506989][ T2057]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   50.506990][ T2057]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   50.506992][ T2057]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   50.506993][ T2057] RIP: 0033:0x7fcca58c054e
[   50.506995][ T2057] 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
[   50.506997][ T2057] RSP: 002b:00007fffd9128030 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   50.507001][ T2057] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fcca58c054e
[   50.507002][ T2057] RDX: 0000000000000000 RSI: 00007fffd91280e0 RDI: 0000000000000005
[   50.507003][ T2057] RBP: 00007fffd9128040 R08: 0000000000000000 R09: 0000000000000000
[   50.507004][ T2057] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a910768
[   50.507005][ T2057] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fffd91287a0
| [   87.367984][ T3880] softirqs last disabled at (0): 0x0
| [   87.367985][ T3880] Preemption disabled at:
| [   87.367986][ T3880] 0x0
| [   87.367993][ T3880] Tainted: [W]=WARN
[   87.367994][ T3880] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   87.367996][ T3880] Call Trace:
[   87.367997][ T3880]  <TASK>
[   87.367998][ T3880]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   87.368004][ T3880]  __might_resched.cold (kernel/sched/core.c:9234)
[   87.368007][ T3880]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   87.368010][ T3880]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   87.368014][ T3880]  __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))
[   87.368017][ T3880]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   87.368020][ T3880]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   87.368023][ T3880]  ? 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)
[   87.368025][ T3880]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   87.368027][ T3880]  put_chars (drivers/char/virtio_console.c:1176)
[   87.368028][ T3880]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   87.368030][ T3880]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   87.368033][ T3880]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   87.368036][ T3880]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   87.368038][ T3880]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   87.368040][ T3880]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   87.368042][ T3880]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   87.368044][ T3880]  console_emit_next_record (kernel/printk/printk.c:3183)
[   87.368046][ T3880]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   87.368048][ T3880]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   87.368050][ T3880]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   87.368051][ T3880]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   87.368053][ T3880]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   87.368055][ T3880]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   87.368056][ T3880]  console_flush_one_record (kernel/printk/printk.c:3268)
[   87.368058][ T3880]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   87.368061][ T3880]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   87.368062][ T3880]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   87.368064][ T3880]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   87.368065][ T3880]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   87.368067][ T3880]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   87.368068][ T3880]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   87.368070][ T3880]  ? __rcu_read_lock (kernel/rcu/tree_plugin.h:391 (discriminator 6) kernel/rcu/tree_plugin.h:414 (discriminator 6))
[   87.368072][ T3880]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   87.368074][ T3880]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   87.368075][ T3880]  vprintk_emit (kernel/printk/printk.c:2479)
[   87.368078][ T3880]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   87.368079][ T3880]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   87.368081][ T3880]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   87.368083][ T3880]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:78)
[   87.368085][ T3880]  _printk (kernel/printk/printk.c:2504)
[   87.368088][ T3880]  ? snapshot_read.cold (user.c:?)
[   87.368090][ T3880]  ? ipv6_mc_down (net/ipv6/mcast.c:1137 net/ipv6/mcast.c:2792)
[   87.368094][ T3880] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   87.368107][ T3880] br_stp_disable_port (net/bridge/br_stp_if.c:106) bridge
[   87.368114][ T3880] br_device_event (net/bridge/br.c:111) bridge
[   87.368123][ T3880]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   87.368126][ T3880]  ? _sub_I_65535_1+0x4d0/0x4d0 stp
[   87.368128][ T3880]  ? addrconf_notify (net/ipv6/addrconf.c:3812)
[   87.368131][ T3880]  notifier_call_chain (kernel/notifier.c:85)
[   87.368134][ T3880]  __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855)
[   87.368138][ T3880]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   87.368139][ T3880]  ? netif_change_name (net/core/dev.c:1517)
[   87.368141][ T3880]  ? netif_set_allmulti (./include/net/netdev_lock.h:30 (discriminator 1))
[   87.368143][ T3880]  ? __kernel_text_address (kernel/extable.c:79)
[   87.368145][ T3880]  ? write_profile (profile.c:?)
[   87.368148][ T3880]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   87.368151][ T3880]  netif_change_flags (net/core/dev.c:9882)
[   87.368153][ T3880]  do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1))
[   87.368155][ T3880]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   87.368157][ T3880]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   87.368158][ T3880]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   87.368159][ T3880]  ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[   87.368163][ T3880]  ? kasan_save_stack (mm/kasan/common.c:58)
[   87.368166][ T3880]  ? kasan_save_stack (mm/kasan/common.c:57)
[   87.368167][ T3880]  ? kasan_save_track (mm/kasan/common.c:78)
[   87.368168][ T3880]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   87.368170][ T3880]  ? __kmalloc_cache_noprof (./include/linux/kasan.h:263 mm/slub.c:5563)
[   87.368171][ T3880]  ? rtnl_newlink (./include/linux/slab.h:991 (discriminator 1) net/core/rtnetlink.c:4113 (discriminator 1))
[   87.368172][ T3880]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   87.368174][ T3880]  ? netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   87.368176][ T3880]  ? netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   87.368178][ T3880]  ? netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   87.368179][ T3880]  ? ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   87.368181][ T3880]  ? ___sys_sendmsg (net/socket.c:2767)
[   87.368183][ T3880]  ? __sys_sendmsg (net/socket.c:2799)
[   87.368184][ T3880]  ? do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   87.368186][ T3880]  ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   87.368189][ T3880]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   87.368190][ T3880]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   87.368192][ T3880]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   87.368193][ T3880]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   87.368195][ T3880]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   87.368198][ T3880]  ? __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)
[   87.368199][ T3880]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   87.368200][ T3880]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   87.368202][ T3880]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   87.368204][ T3880]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   87.368206][ T3880]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   87.368208][ T3880]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   87.368209][ T3880]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   87.368211][ T3880]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   87.368212][ T3880]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   87.368214][ T3880]  ? is_bpf_text_address (./include/linux/rcupdate.h:850 kernel/bpf/core.c:749)
[   87.368217][ T3880]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   87.368219][ T3880]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   87.368220][ T3880]  ? __kernel_text_address (kernel/extable.c:79)
[   87.368221][ T3880]  ? write_profile (profile.c:?)
[   87.368222][ T3880]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   87.368223][ T3880]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   87.368225][ T3880]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   87.368227][ T3880]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   87.368230][ T3880]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   87.368231][ T3880]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   87.368233][ T3880]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   87.368234][ T3880]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   87.368236][ T3880]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   87.368237][ T3880]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[   87.368239][ T3880]  ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[   87.368241][ T3880]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   87.368243][ T3880]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   87.368244][ T3880]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   87.368245][ T3880]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   87.368246][ T3880]  ? __netlink_lookup (./include/linux/rcupdate.h:850 ./include/linux/rhashtable.h:709 net/netlink/af_netlink.c:499)
[   87.368249][ T3880]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   87.368250][ T3880]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   87.368252][ T3880]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   87.368254][ T3880]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   87.368256][ T3880]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   87.368257][ T3880]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   87.368259][ T3880]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   87.368261][ T3880]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   87.368262][ T3880]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   87.368264][ T3880]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   87.368266][ T3880]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   87.368268][ T3880]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   87.368269][ T3880]  ? copy_msghdr_from_user (net/socket.c:2650)
[   87.368271][ T3880]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   87.368272][ T3880]  ? move_addr_to_kernel (net/socket.c:258)
[   87.368273][ T3880]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[   87.368276][ T3880]  ___sys_sendmsg (net/socket.c:2767)
[   87.368277][ T3880]  ? copy_msghdr_from_user (net/socket.c:2619)
[   87.368282][ T3880]  __sys_sendmsg (net/socket.c:2799)
[   87.368284][ T3880]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   87.368286][ T3880]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   87.368288][ T3880]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   87.368290][ T3880]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   87.368292][ T3880]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   87.368293][ T3880] RIP: 0033:0x7f7e1ba2154e
[   87.368295][ T3880] 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
[   87.368297][ T3880] RSP: 002b:00007ffc76341900 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   87.368301][ T3880] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f7e1ba2154e
[   87.368302][ T3880] RDX: 0000000000000000 RSI: 00007ffc763419b0 RDI: 0000000000000005
[   87.368303][ T3880] RBP: 00007ffc76341910 R08: 0000000000000000 R09: 0000000000000000
[   87.368304][ T3880] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91078d
[   87.368305][ T3880] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffc76342070
| [  161.151923][ T7759] softirqs last disabled at (0): 0x0
| [  161.151925][ T7759] Preemption disabled at:
| [  161.151925][ T7759] 0x0
| [  161.151934][ T7759] Tainted: [W]=WARN
[  161.151934][ T7759] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  161.151936][ T7759] Call Trace:
[  161.151938][ T7759]  <TASK>
[  161.151939][ T7759]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[  161.151944][ T7759]  __might_resched.cold (kernel/sched/core.c:9234)
[  161.151948][ T7759]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[  161.151952][ T7759]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  161.151956][ T7759]  __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))
[  161.151959][ T7759]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[  161.151962][ T7759]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[  161.151966][ T7759]  ? 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)
[  161.151967][ T7759]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[  161.151969][ T7759]  put_chars (drivers/char/virtio_console.c:1176)
[  161.151971][ T7759]  ? __send_to_port (drivers/char/virtio_console.c:654)
[  161.151973][ T7759]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[  161.151976][ T7759]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[  161.151979][ T7759]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[  161.151981][ T7759]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[  161.151983][ T7759]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  161.151985][ T7759]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  161.151987][ T7759]  console_emit_next_record (kernel/printk/printk.c:3183)
[  161.151989][ T7759]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[  161.151991][ T7759]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  161.151993][ T7759]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  161.151994][ T7759]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  161.151996][ T7759]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  161.151998][ T7759]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[  161.151999][ T7759]  console_flush_one_record (kernel/printk/printk.c:3268)
[  161.152002][ T7759]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[  161.152004][ T7759]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[  161.152006][ T7759]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  161.152007][ T7759]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[  161.152009][ T7759]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  161.152010][ T7759]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[  161.152012][ T7759]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[  161.152013][ T7759]  ? __rcu_read_lock (kernel/rcu/tree_plugin.h:391 (discriminator 6) kernel/rcu/tree_plugin.h:414 (discriminator 6))
[  161.152015][ T7759]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[  161.152017][ T7759]  ? vprintk_emit (kernel/printk/printk.c:2478)
[  161.152019][ T7759]  vprintk_emit (kernel/printk/printk.c:2479)
[  161.152021][ T7759]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[  161.152023][ T7759]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  161.152025][ T7759]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[  161.152027][ T7759]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:78)
[  161.152029][ T7759]  _printk (kernel/printk/printk.c:2504)
[  161.152032][ T7759]  ? snapshot_read.cold (user.c:?)
[  161.152034][ T7759]  ? ipv6_mc_down (net/ipv6/mcast.c:1137 net/ipv6/mcast.c:2792)
[  161.152038][ T7759] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[  161.152051][ T7759] br_stp_disable_port (net/bridge/br_stp_if.c:106) bridge
[  161.152058][ T7759] br_device_event (net/bridge/br.c:111) bridge
[  161.152066][ T7759]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[  161.152070][ T7759]  ? _sub_I_65535_1+0x4d0/0x4d0 stp
[  161.152071][ T7759]  ? addrconf_notify (net/ipv6/addrconf.c:3812)
[  161.152075][ T7759]  notifier_call_chain (kernel/notifier.c:85)
[  161.152078][ T7759]  __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855)
[  161.152081][ T7759]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[  161.152083][ T7759]  ? netif_change_name (net/core/dev.c:1517)
[  161.152085][ T7759]  ? netif_set_allmulti (./include/net/netdev_lock.h:30 (discriminator 1))
[  161.152087][ T7759]  ? __kernel_text_address (kernel/extable.c:79)
[  161.152089][ T7759]  ? write_profile (profile.c:?)
[  161.152091][ T7759]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[  161.152093][ T7759]  netif_change_flags (net/core/dev.c:9882)
[  161.152096][ T7759]  do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1))
[  161.152099][ T7759]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[  161.152100][ T7759]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[  161.152101][ T7759]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  161.152103][ T7759]  ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[  161.152106][ T7759]  ? kasan_save_stack (mm/kasan/common.c:58)
[  161.152109][ T7759]  ? kasan_save_stack (mm/kasan/common.c:57)
[  161.152110][ T7759]  ? kasan_save_track (mm/kasan/common.c:78)
[  161.152112][ T7759]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[  161.152113][ T7759]  ? __kmalloc_cache_noprof (./include/linux/kasan.h:263 mm/slub.c:5563)
[  161.152115][ T7759]  ? rtnl_newlink (./include/linux/slab.h:991 (discriminator 1) net/core/rtnetlink.c:4113 (discriminator 1))
[  161.152116][ T7759]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[  161.152117][ T7759]  ? netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[  161.152120][ T7759]  ? netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[  161.152121][ T7759]  ? netlink_sendmsg (net/netlink/af_netlink.c:1900)
[  161.152122][ T7759]  ? ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[  161.152124][ T7759]  ? ___sys_sendmsg (net/socket.c:2767)
[  161.152126][ T7759]  ? __sys_sendmsg (net/socket.c:2799)
[  161.152127][ T7759]  ? do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[  161.152129][ T7759]  ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  161.152132][ T7759]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  161.152133][ T7759]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  161.152135][ T7759]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  161.152136][ T7759]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  161.152138][ T7759]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[  161.152141][ T7759]  ? __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)
[  161.152142][ T7759]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[  161.152143][ T7759]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[  161.152145][ T7759]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[  161.152147][ T7759]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[  161.152149][ T7759]  rtnl_newlink (net/core/rtnetlink.c:4215)
[  161.152151][ T7759]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  161.152152][ T7759]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  161.152153][ T7759]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  161.152155][ T7759]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  161.152156][ T7759]  ? is_bpf_text_address (./include/linux/rcupdate.h:850 kernel/bpf/core.c:749)
[  161.152160][ T7759]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[  161.152161][ T7759]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[  161.152163][ T7759]  ? __kernel_text_address (kernel/extable.c:79)
[  161.152164][ T7759]  ? write_profile (profile.c:?)
[  161.152165][ T7759]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[  161.152166][ T7759]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  161.152168][ T7759]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  161.152169][ T7759]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[  161.152173][ T7759]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  161.152174][ T7759]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  161.152176][ T7759]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  161.152177][ T7759]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[  161.152179][ T7759]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[  161.152180][ T7759]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[  161.152181][ T7759]  ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[  161.152184][ T7759]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[  161.152185][ T7759]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[  161.152187][ T7759]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[  161.152189][ T7759]  ? netlink_ack (./include/linux/skbuff.h:2718)
[  161.152191][ T7759]  ? __netlink_lookup (./include/linux/rcupdate.h:850 ./include/linux/rhashtable.h:709 net/netlink/af_netlink.c:499)
[  161.152194][ T7759]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  161.152197][ T7759]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[  161.152200][ T7759]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[  161.152202][ T7759]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[  161.152203][ T7759]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  161.152205][ T7759]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  161.152206][ T7759]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  161.152208][ T7759]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[  161.152210][ T7759]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[  161.152212][ T7759]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  161.152214][ T7759]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[  161.152215][ T7759]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[  161.152217][ T7759]  ? copy_msghdr_from_user (net/socket.c:2650)
[  161.152219][ T7759]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[  161.152220][ T7759]  ? move_addr_to_kernel (net/socket.c:258)
[  161.152222][ T7759]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[  161.152224][ T7759]  ___sys_sendmsg (net/socket.c:2767)
[  161.152226][ T7759]  ? copy_msghdr_from_user (net/socket.c:2619)
[  161.152230][ T7759]  __sys_sendmsg (net/socket.c:2799)
[  161.152232][ T7759]  ? __sys_sendmsg_sock (net/socket.c:2780)
[  161.152235][ T7759]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  161.152237][ T7759]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[  161.152238][ T7759]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[  161.152240][ T7759]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  161.152241][ T7759] RIP: 0033:0x7fd135c0c54e
[  161.152244][ T7759] 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
[  161.152245][ T7759] RSP: 002b:00007ffc565a2360 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[  161.152249][ T7759] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fd135c0c54e
[  161.152251][ T7759] RDX: 0000000000000000 RSI: 00007ffc565a2410 RDI: 0000000000000005
[  161.152251][ T7759] RBP: 00007ffc565a2370 R08: 0000000000000000 R09: 0000000000000000
[  161.152252][ T7759] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9107d7
[  161.152253][ T7759] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffc565a2ad0
| [  166.800977][ T7809] softirqs last disabled at (0): 0x0
| [  166.800978][ T7809] Preemption disabled at:
| [  166.800979][ T7809] 0x0
| [  166.800989][ T7809] Tainted: [W]=WARN
[  166.800990][ T7809] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  166.800992][ T7809] Call Trace:
[  166.800994][ T7809]  <TASK>
[  166.800996][ T7809]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[  166.801002][ T7809]  __might_resched.cold (kernel/sched/core.c:9234)
[  166.801006][ T7809]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[  166.801009][ T7809]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  166.801013][ T7809]  __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))
[  166.801017][ T7809]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[  166.801019][ T7809]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[  166.801023][ T7809]  ? 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)
[  166.801025][ T7809]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[  166.801026][ T7809]  put_chars (drivers/char/virtio_console.c:1176)
[  166.801028][ T7809]  ? desc_read_finalized_seq (kernel/printk/printk_ringbuffer.c:1934)
[  166.801030][ T7809]  ? __send_to_port (drivers/char/virtio_console.c:654)
[  166.801032][ T7809]  ? console_prepend_replay (kernel/printk/printk.c:3005)
[  166.801035][ T7809]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[  166.801038][ T7809]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[  166.801039][ T7809]  ? 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)
[  166.801041][ T7809]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[  166.801042][ T7809]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  166.801044][ T7809]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  166.801046][ T7809]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  166.801048][ T7809]  console_emit_next_record (kernel/printk/printk.c:3183)
[  166.801050][ T7809]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[  166.801052][ T7809]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  166.801054][ T7809]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  166.801055][ T7809]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  166.801057][ T7809]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  166.801058][ T7809]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[  166.801060][ T7809]  console_flush_one_record (kernel/printk/printk.c:3268)
[  166.801062][ T7809]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[  166.801065][ T7809]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[  166.801066][ T7809]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  166.801068][ T7809]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[  166.801069][ T7809]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  166.801071][ T7809]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[  166.801072][ T7809]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[  166.801074][ T7809]  ? __rcu_read_lock (kernel/rcu/tree_plugin.h:391 (discriminator 6) kernel/rcu/tree_plugin.h:414 (discriminator 6))
[  166.801076][ T7809]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[  166.801077][ T7809]  ? vprintk_emit (kernel/printk/printk.c:2478)
[  166.801079][ T7809]  vprintk_emit (kernel/printk/printk.c:2479)
[  166.801083][ T7809]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[  166.801085][ T7809]  ? debug_object_assert_init (lib/debugobjects.c:1072 (discriminator 3))
[  166.801088][ T7809]  ? debug_object_activate (lib/debugobjects.c:884)
[  166.801090][ T7809]  _printk (kernel/printk/printk.c:2504)
[  166.801094][ T7809]  ? snapshot_read.cold (user.c:?)
[  166.801096][ T7809]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[  166.801097][ T7809]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  166.801099][ T7809]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[  166.801102][ T7809] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[  166.801114][ T7809] br_stp_disable_port (net/bridge/br_stp_if.c:106) bridge
[  166.801122][ T7809] br_stp_disable_bridge (net/bridge/br_stp_if.c:76) bridge
[  166.801129][ T7809] br_dev_stop (net/bridge/br_device.c:193) bridge
[  166.801137][ T7809]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[  166.801140][ T7809]  __dev_close_many (net/core/dev.c:1798)
[  166.801144][ T7809]  ? netif_open (net/core/dev.c:1755)
[  166.801145][ T7809]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  166.801147][ T7809]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[  166.801149][ T7809]  __dev_change_flags (net/core/dev.c:1811 net/core/dev.c:9810)
[  166.801151][ T7809]  ? netif_set_allmulti (./include/net/netdev_lock.h:30 (discriminator 1))
[  166.801153][ T7809]  ? __kernel_text_address (kernel/extable.c:79)
[  166.801155][ T7809]  ? write_profile (profile.c:?)
[  166.801158][ T7809]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[  166.801161][ T7809]  netif_change_flags (net/core/dev.c:9877)
[  166.801163][ T7809]  do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1))
[  166.801165][ T7809]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[  166.801166][ T7809]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[  166.801168][ T7809]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  166.801170][ T7809]  ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[  166.801175][ T7809]  ? kasan_save_stack (mm/kasan/common.c:58)
[  166.801178][ T7809]  ? kasan_save_stack (mm/kasan/common.c:57)
[  166.801179][ T7809]  ? kasan_save_track (mm/kasan/common.c:78)
[  166.801181][ T7809]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[  166.801182][ T7809]  ? __kmalloc_cache_noprof (./include/linux/kasan.h:263 mm/slub.c:5563)
[  166.801184][ T7809]  ? rtnl_newlink (./include/linux/slab.h:991 (discriminator 1) net/core/rtnetlink.c:4113 (discriminator 1))
[  166.801185][ T7809]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[  166.801186][ T7809]  ? netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[  166.801189][ T7809]  ? netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[  166.801190][ T7809]  ? netlink_sendmsg (net/netlink/af_netlink.c:1900)
[  166.801191][ T7809]  ? ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[  166.801194][ T7809]  ? ___sys_sendmsg (net/socket.c:2767)
[  166.801195][ T7809]  ? __sys_sendmsg (net/socket.c:2799)
[  166.801197][ T7809]  ? do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[  166.801199][ T7809]  ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  166.801202][ T7809]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  166.801203][ T7809]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  166.801205][ T7809]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  166.801206][ T7809]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  166.801208][ T7809]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[  166.801211][ T7809]  ? __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)
[  166.801213][ T7809]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[  166.801214][ T7809]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[  166.801216][ T7809]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[  166.801218][ T7809]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[  166.801220][ T7809]  rtnl_newlink (net/core/rtnetlink.c:4215)
[  166.801222][ T7809]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  166.801224][ T7809]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  166.801225][ T7809]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  166.801226][ T7809]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  166.801228][ T7809]  ? is_bpf_text_address (./include/linux/rcupdate.h:850 kernel/bpf/core.c:749)
[  166.801231][ T7809]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[  166.801233][ T7809]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[  166.801234][ T7809]  ? __kernel_text_address (kernel/extable.c:79)
[  166.801236][ T7809]  ? write_profile (profile.c:?)
[  166.801237][ T7809]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[  166.801238][ T7809]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  166.801239][ T7809]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  166.801241][ T7809]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[  166.801244][ T7809]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  166.801246][ T7809]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  166.801248][ T7809]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  166.801249][ T7809]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[  166.801250][ T7809]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[  166.801252][ T7809]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[  166.801253][ T7809]  ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[  166.801255][ T7809]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[  166.801257][ T7809]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[  166.801258][ T7809]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[  166.801260][ T7809]  ? netlink_ack (./include/linux/skbuff.h:2718)
[  166.801261][ T7809]  ? __netlink_lookup (./include/linux/rcupdate.h:850 ./include/linux/rhashtable.h:709 net/netlink/af_netlink.c:499)
[  166.801263][ T7809]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  166.801265][ T7809]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[  166.801267][ T7809]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[  166.801269][ T7809]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[  166.801270][ T7809]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  166.801272][ T7809]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  166.801273][ T7809]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  166.801275][ T7809]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[  166.801277][ T7809]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[  166.801279][ T7809]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  166.801280][ T7809]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[  166.801282][ T7809]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[  166.801284][ T7809]  ? copy_msghdr_from_user (net/socket.c:2650)
[  166.801285][ T7809]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[  166.801287][ T7809]  ? move_addr_to_kernel (net/socket.c:258)
[  166.801288][ T7809]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[  166.801290][ T7809]  ___sys_sendmsg (net/socket.c:2767)
[  166.801292][ T7809]  ? copy_msghdr_from_user (net/socket.c:2619)
[  166.801297][ T7809]  __sys_sendmsg (net/socket.c:2799)
[  166.801299][ T7809]  ? __sys_sendmsg_sock (net/socket.c:2780)
[  166.801301][ T7809]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  166.801303][ T7809]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[  166.801304][ T7809]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[  166.801307][ T7809]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  166.801308][ T7809] RIP: 0033:0x7f6afd8c454e
[  166.801310][ T7809] 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
[  166.801312][ T7809] RSP: 002b:00007ffc95a49920 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[  166.801318][ T7809] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f6afd8c454e
[  166.801319][ T7809] RDX: 0000000000000000 RSI: 00007ffc95a499d0 RDI: 0000000000000005
[  166.801320][ T7809] RBP: 00007ffc95a49930 R08: 0000000000000000 R09: 0000000000000000
[  166.801321][ T7809] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9107dd


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
netlink_release:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print
__kmalloc_noprof:put_chars:hvc_console_print:console_emit_next_record:console_flush_one_record
__alloc_skb:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars