======================================
| [    9.738685][  T186] softirqs last disabled at (29783): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [    9.738687][  T186] Preemption disabled at:
| [    9.738688][  T186] 0x0
| [    9.738697][  T186] Tainted: [W]=WARN
[    9.738698][  T186] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.738700][  T186] Call Trace:
[    9.738702][  T186]  <TASK>
[    9.738703][  T186]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[    9.738710][  T186]  __might_resched.cold (kernel/sched/core.c:9234)
[    9.738717][  T186]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[    9.738723][  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)
[    9.738730][  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))
[    9.738732][  T186]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[    9.738738][  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)
[    9.738741][  T186]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[    9.738744][  T186]  put_chars (drivers/char/virtio_console.c:1176)
[    9.738747][  T186]  ? __send_to_port (drivers/char/virtio_console.c:654)
[    9.738749][  T186]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[    9.738754][  T186]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[    9.738759][  T186]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[    9.738765][  T186]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[    9.738767][  T186]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.738770][  T186]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[    9.738774][  T186]  console_emit_next_record (kernel/printk/printk.c:3183)
[    9.738778][  T186]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[    9.738780][  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))
[    9.738783][  T186]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.738785][  T186]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[    9.738789][  T186]  console_flush_one_record (kernel/printk/printk.c:3268)
[    9.738794][  T186]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[    9.738796][  T186]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[    9.738801][  T186]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[    9.738804][  T186]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[    9.738806][  T186]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.738808][  T186]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[    9.738812][  T186]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[    9.738814][  T186]  ? vprintk_emit (kernel/printk/printk.c:2478)
[    9.738817][  T186]  vprintk_emit (kernel/printk/printk.c:2479)
[    9.738821][  T186]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[    9.738825][  T186]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[    9.738828][  T186]  _printk (kernel/printk/printk.c:2504)
[    9.738832][  T186]  ? snapshot_read.cold (user.c:?)
[    9.738835][  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)
[    9.738838][  T186]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[    9.738842][  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)
[    9.738844][  T186]  do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4))
[    9.738848][  T186]  ? exit_notify (kernel/exit.c:780)
[    9.738850][  T186]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[    9.738853][  T186]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.738857][  T186]  do_group_exit (kernel/exit.c:1151)
[    9.738860][  T186]  __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160)
[    9.738862][  T186]  x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232)
[    9.738864][  T186]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[    9.738867][  T186]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[    9.738870][  T186]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.738872][  T186] RIP: 0033:0x7f05451531b8
[    9.738875][  T186] Code: Unable to access opcode bytes at 0x7f054515318e.

Code starting with the faulting instruction
===========================================
[    9.738876][  T186] RSP: 002b:00007ffd1b36cc28 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[    9.738878][  T186] RAX: ffffffffffffffda RBX: 00007f0545283f88 RCX: 00007f05451531b8
[    9.738880][  T186] RDX: 00007f0544e9dfc8 RSI: fffffffffffffeb8 RDI: 0000000000000000
[    9.738881][  T186] RBP: 00007ffd1b36cc80 R08: 0000000000000000 R09: 0000000000008010
[    9.738882][  T186] R10: 00007ffd1b36ca40 R11: 0000000000000246 R12: 0000000000000001
[    9.738882][  T186] R13: 0000000000000000 R14: 00007f0545282680 R15: 00007f0545283fa0
| [   11.606889][  T264] softirqs last disabled at (18508): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   11.606891][  T264] Preemption disabled at:
| [   11.606892][  T264] vprintk_emit (kernel/printk/printk.c:2471)
| [   11.606901][  T264] Tainted: [W]=WARN
[   11.606902][  T264] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.606904][  T264] Call Trace:
[   11.606906][  T264]  <TASK>
[   11.606907][  T264]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   11.606913][  T264]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   11.606916][  T264]  __might_resched.cold (kernel/sched/core.c:9234)
[   11.606920][  T264]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   11.606925][  T264]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   11.606930][  T264]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   11.606932][  T264]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.606938][  T264]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   11.606941][  T264]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.606944][  T264]  put_chars (drivers/char/virtio_console.c:1176)
[   11.606947][  T264]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   11.606951][  T264]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   11.606955][  T264]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   11.606958][  T264]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   11.606960][  T264]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.606961][  T264]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.606966][  T264]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   11.606968][  T264]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   11.606971][  T264]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.606975][  T264]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.606979][  T264]  console_emit_next_record (kernel/printk/printk.c:3183)
[   11.606983][  T264]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   11.606985][  T264]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   11.606988][  T264]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.606991][  T264]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.606995][  T264]  console_flush_one_record (kernel/printk/printk.c:3268)
[   11.606999][  T264]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   11.607001][  T264]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.607006][  T264]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   11.607009][  T264]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   11.607011][  T264]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.607013][  T264]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   11.607017][  T264]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   11.607018][  T264]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   11.607022][  T264]  vprintk_emit (kernel/printk/printk.c:2479)
[   11.607026][  T264]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   11.607028][  T264]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.607030][  T264]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   11.607034][  T264]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   11.607038][  T264]  _printk (kernel/printk/printk.c:2504)
[   11.607041][  T264]  ? snapshot_read.cold (user.c:?)
[   11.607045][  T264]  ? br_multicast_flood (??:?) bridge
[   11.607059][  T264]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   11.607060][  T264]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   11.607062][  T264]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   11.607066][  T264] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   11.607077][  T264] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   11.607085][  T264] new_nbp (net/bridge/br_if.c:449) bridge
[   11.607095][  T264] br_add_if (net/bridge/br_if.c:592) bridge
[   11.607102][  T264]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   11.607106][  T264]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   11.607109][  T264]  ? __kernel_text_address (kernel/extable.c:79)
[   11.607113][  T264]  do_set_master (net/core/rtnetlink.c:3071)
[   11.607118][  T264]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   11.607121][  T264]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   11.607124][  T264]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   11.607125][  T264]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   11.607128][  T264]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   11.607132][  T264]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   11.607134][  T264]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   11.607136][  T264]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   11.607139][  T264]  ? kasan_save_stack (mm/kasan/common.c:58)
[   11.607142][  T264]  ? kasan_save_stack (mm/kasan/common.c:57)
[   11.607144][  T264]  ? kasan_save_track (mm/kasan/common.c:78)
[   11.607147][  T264]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.607148][  T264]  ? netlink_seq_next (net/netlink/af_netlink.c:2685)
[   11.607152][  T264]  ? ___sys_sendmsg (net/socket.c:2757)
[   11.607156][  T264]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.607158][  T264]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   11.607161][  T264]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.607163][  T264]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.607165][  T264]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.607167][  T264]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.607169][  T264]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   11.607173][  T264]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   11.607175][  T264]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   11.607177][  T264]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   11.607180][  T264]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   11.607182][  T264]  ? nla_get_range_signed (lib/nlattr.c:270)
[   11.607187][  T264]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   11.607192][  T264]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   11.607198][  T264]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.607200][  T264]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.607204][  T264]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.607206][  T264]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   11.607208][  T264]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.607210][  T264]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.607214][  T264]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.607216][  T264]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   11.607219][  T264]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.607220][  T264]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.607225][  T264]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.607227][  T264]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   11.607230][  T264]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   11.607232][  T264]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.607235][  T264]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   11.607241][  T264]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   11.607243][  T264]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   11.607247][  T264]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   11.607251][  T264]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   11.607254][  T264]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.607258][  T264]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   11.607262][  T264]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   11.607266][  T264]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   11.607273][  T264]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   11.607276][  T264]  ? copy_msghdr_from_user (net/socket.c:2650)
[   11.607278][  T264]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   11.607280][  T264]  ? move_addr_to_kernel (net/socket.c:258)
[   11.607289][  T264]  ___sys_sendmsg (net/socket.c:2767)
[   11.607292][  T264]  ? copy_msghdr_from_user (net/socket.c:2619)
[   11.607310][  T264]  __sys_sendmsg (net/socket.c:2799)
[   11.607313][  T264]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   11.607320][  T264]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.607323][  T264]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   11.607326][  T264]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   11.607329][  T264]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.607331][  T264] RIP: 0033:0x7f015f51f54e
[   11.607335][  T264] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   11.607337][  T264] RSP: 002b:00007ffc4358bee0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   11.607340][  T264] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f015f51f54e
[   11.607341][  T264] RDX: 0000000000000000 RSI: 00007ffc4358bf90 RDI: 0000000000000005
[   11.607342][  T264] RBP: 00007ffc4358bef0 R08: 0000000000000000 R09: 0000000000000000
[   11.607343][  T264] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91521c
[   11.607344][  T264] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffc4358c650
| [   27.017364][    C0] softirqs last disabled at (1100941): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   27.017366][    C0] Preemption disabled at:
| [   27.017366][    C0] schedule_preempt_disabled (kernel/sched/core.c:7420)
| [   27.017375][    C0] Tainted: [W]=WARN
[   27.017376][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   27.017378][    C0] Call Trace:
[   27.017380][    C0]  <IRQ>
[   27.017382][    C0]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   27.017387][    C0]  ? schedule_preempt_disabled (kernel/sched/core.c:7420)
[   27.017389][    C0]  __might_resched.cold (kernel/sched/core.c:9234)
[   27.017392][    C0]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   27.017396][    C0]  ? __asan_memcpy (mm/kasan/shadow.c:106 (discriminator 1))
[   27.017399][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.017403][    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))
[   27.017406][    C0]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   27.017409][    C0]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   27.017412][    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)
[   27.017414][    C0]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   27.017416][    C0]  put_chars (drivers/char/virtio_console.c:1176)
[   27.017418][    C0]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   27.017420][    C0]  ? console_prepend_replay (kernel/printk/printk.c:3005)
[   27.017424][    C0]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   27.017427][    C0]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   27.017428][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.017430][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   27.017432][    C0]  console_emit_next_record (kernel/printk/printk.c:3183)
[   27.017435][    C0]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   27.017437][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.017439][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.017440][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   27.017442][    C0]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   27.017444][    C0]  console_flush_one_record (kernel/printk/printk.c:3268)
[   27.017447][    C0]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   27.017449][    C0]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   27.017451][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   27.017459][    C0]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   27.017461][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.017462][    C0]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   27.017464][    C0]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   27.017466][    C0]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   27.017468][    C0]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   27.017470][    C0]  vprintk_emit (kernel/printk/printk.c:2479)
[   27.017472][    C0]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   27.017474][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.017476][    C0]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   27.017477][    C0]  ? x86_64_start_kernel (arch/x86/kernel/head64.c:264)
[   27.017482][    C0]  _printk (kernel/printk/printk.c:2504)
[   27.017485][    C0]  ? snapshot_read.cold (user.c:?)
[   27.017487][    C0]  ? arch_stack_walk (arch/x86/kernel/stacktrace.c:25)
[   27.017491][    C0]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   27.017493][    C0]  ? nbcon_cpu_emergency_enter (./include/linux/instrumented.h:112 ./include/linux/atomic/atomic-instrumented.h:435 kernel/printk/nbcon.c:1723)
[   27.017495][    C0]  print_irq_inversion_bug.part.0 (kernel/locking/lockdep.c:4097 (discriminator 1))
[   27.017498][    C0]  mark_lock_irq (kernel/locking/lockdep.c:4095 kernel/locking/lockdep.c:4174 kernel/locking/lockdep.c:4310)
[   27.017501][    C0]  mark_lock (kernel/locking/lockdep.c:4769)
[   27.017503][    C0]  mark_usage (kernel/locking/lockdep.c:4658)
[   27.017505][    C0]  __lock_acquire (kernel/locking/lockdep.c:5208)
[   27.017507][    C0]  lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   27.017509][    C0]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   27.017522][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.017524][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   27.017526][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   27.017532][    C0]  _raw_spin_lock (./include/linux/spinlock_api_smp.h:190 (discriminator 1) kernel/locking/spinlock.c:173 (discriminator 1))
[   27.017534][    C0]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   27.017540][    C0] br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   27.017547][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   27.017553][    C0]  call_timer_fn (kernel/time/timer.c:1748)
[   27.017557][    C0]  ? detach_if_pending (./include/linux/list.h:1159)
[   27.017559][    C0]  ? debug_object_active_state (lib/debugobjects.c:1122)
[   27.017563][    C0]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   27.017565][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   27.017566][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.017569][    C0]  __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2374)
[   27.017570][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   27.017577][    C0]  ? __bpf_trace_itimer_expire (./include/trace/events/timer.h:407)
[   27.017579][    C0]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   27.017582][    C0]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   27.017584][    C0]  run_timer_softirq (kernel/time/timer.c:2386 kernel/time/timer.c:2395 kernel/time/timer.c:2403)
[   27.017586][    C0]  ? __run_timers (./include/trace/events/timer.h:138 (discriminator 19))
[   27.017588][    C0]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   27.017590][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.017592][    C0]  handle_softirqs (kernel/softirq.c:645)
[   27.017594][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   27.017596][    C0]  ? _local_bh_enable (kernel/softirq.c:428 (discriminator 1))
[   27.017598][    C0]  __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
[   27.017599][    C0]  irq_exit_rcu (kernel/softirq.c:784)
[   27.017601][    C0]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1062 (discriminator 37) arch/x86/kernel/apic/apic.c:1062 (discriminator 37))
[   27.017604][    C0]  </IRQ>
[   27.017604][    C0]  <TASK>
[   27.017605][    C0]  ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4427 (discriminator 2))
[   27.017607][    C0]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:674)
[   27.017609][    C0] RIP: 0010:pv_native_safe_halt (./arch/x86/include/asm/irqflags.h:48 arch/x86/kernel/paravirt.c:63)
[   27.017612][    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
[   27.017613][    C0] RSP: 0018:ffffffff8b007cf8 EFLAGS: 00000296
[   27.017617][    C0] RAX: 000000000010cc8b RBX: ffffffff8b01c600 RCX: ffffffff880f0307
[   27.017618][    C0] RDX: ffffffff8b01c600 RSI: ffffffff8ae38b01 RDI: ffffffff8a88d8e0
[   27.017619][    C0] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[   27.017620][    C0] R10: 0000000000000000 R11: 0000000000000001 R12: 1ffffffff1600fa2
[   27.017620][    C0] R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000014770
[   27.017622][    C0]  ? cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   27.017625][    C0]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   27.017627][    C0]  default_idle (./arch/x86/include/asm/paravirt.h:62 arch/x86/kernel/process.c:768)
[   27.017629][    C0]  default_idle_call (kernel/sched/idle.c:122)
[   27.017630][    C0]  cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   27.017632][    C0]  ? arch_cpu_idle_exit+0x40/0x40
[   27.017634][    C0]  ? mark_tsc_async_resets (arch/x86/kernel/tsc_sync.c:49)
[   27.017636][    C0]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   27.017637][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.017639][    C0]  do_idle (kernel/sched/idle.c:355)
[   27.017641][    C0]  cpu_startup_entry (kernel/sched/idle.c:454)
[   27.017642][    C0]  rest_init (init/main.c:727)
[   27.017644][    C0]  ? __cpuidle_text_end (??:?)
[   27.017647][    C0]  ? rest_init (init/main.c:727)
[   27.017649][    C0]  ? acpi_hw_set_mode (drivers/acpi/acpica/hwacpi.c:72 (discriminator 1))
[   27.017653][    C0]  ? cpus_read_unlock (./include/linux/percpu-rwsem.h:125 (discriminator 1) kernel/cpu.c:502 (discriminator 1))
[   27.017655][    C0]  ? acpi_enable (drivers/acpi/acpica/evxfevnt.c:47)
[   27.017658][    C0]  start_kernel (init/main.c:1185)
[   27.017660][    C0]  x86_64_start_reservations (arch/x86/kernel/head64.c:310)
[   27.017662][    C0]  x86_64_start_kernel (arch/x86/kernel/head64.c:291)
[   27.017664][    C0]  common_startup_64 (arch/x86/kernel/head_64.S:418)
| [   27.088329][    C0]
| [   27.088406][    C0]
| [   27.088406][    C0] stack backtrace:
| [   27.088661][    C0] Tainted: [W]=WARN
[   27.088661][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   27.088663][    C0] Call Trace:
[   27.088664][    C0]  <IRQ>
[   27.088664][    C0]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   27.088668][    C0]  print_irq_inversion_bug.part.0.cold (kernel/locking/lockdep.c:4141)
[   27.088670][    C0]  mark_lock_irq (kernel/locking/lockdep.c:4095 kernel/locking/lockdep.c:4174 kernel/locking/lockdep.c:4310)
[   27.088674][    C0]  mark_lock (kernel/locking/lockdep.c:4769)
[   27.088676][    C0]  mark_usage (kernel/locking/lockdep.c:4658)
[   27.088677][    C0]  __lock_acquire (kernel/locking/lockdep.c:5208)
[   27.088680][    C0]  lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   27.088681][    C0]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   27.088689][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.088692][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   27.088693][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   27.088700][    C0]  _raw_spin_lock (./include/linux/spinlock_api_smp.h:190 (discriminator 1) kernel/locking/spinlock.c:173 (discriminator 1))
[   27.088702][    C0]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   27.088708][    C0] br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   27.088719][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   27.088728][    C0]  call_timer_fn (kernel/time/timer.c:1748)
[   27.088730][    C0]  ? detach_if_pending (./include/linux/list.h:1159)
[   27.088732][    C0]  ? debug_object_active_state (lib/debugobjects.c:1122)
[   27.088735][    C0]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   27.088737][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   27.088739][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.088742][    C0]  __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2374)
[   27.088744][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   27.088751][    C0]  ? __bpf_trace_itimer_expire (./include/trace/events/timer.h:407)
[   27.088753][    C0]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   27.088756][    C0]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   27.088758][    C0]  run_timer_softirq (kernel/time/timer.c:2386 kernel/time/timer.c:2395 kernel/time/timer.c:2403)
[   27.088760][    C0]  ? __run_timers (./include/trace/events/timer.h:138 (discriminator 19))
[   27.088762][    C0]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   27.088764][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.088766][    C0]  handle_softirqs (kernel/softirq.c:645)
[   27.088768][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   27.088769][    C0]  ? _local_bh_enable (kernel/softirq.c:428 (discriminator 1))
[   27.088771][    C0]  __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
[   27.088773][    C0]  irq_exit_rcu (kernel/softirq.c:784)
[   27.088774][    C0]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1062 (discriminator 37) arch/x86/kernel/apic/apic.c:1062 (discriminator 37))
[   27.088776][    C0]  </IRQ>
[   27.088777][    C0]  <TASK>
[   27.088777][    C0]  ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4427 (discriminator 2))
[   27.088779][    C0]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:674)
[   27.088780][    C0] RIP: 0010:pv_native_safe_halt (./arch/x86/include/asm/irqflags.h:48 arch/x86/kernel/paravirt.c:63)
[   27.088782][    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
[   27.088784][    C0] RSP: 0018:ffffffff8b007cf8 EFLAGS: 00000296
[   27.088786][    C0] RAX: 000000000010cc8b RBX: ffffffff8b01c600 RCX: ffffffff880f0307
[   27.088787][    C0] RDX: ffffffff8b01c600 RSI: ffffffff8ae38b01 RDI: ffffffff8a88d8e0
[   27.088788][    C0] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[   27.088789][    C0] R10: 0000000000000000 R11: 0000000000000001 R12: 1ffffffff1600fa2
[   27.088789][    C0] R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000014770
[   27.088791][    C0]  ? cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   27.088793][    C0]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   27.088795][    C0]  default_idle (./arch/x86/include/asm/paravirt.h:62 arch/x86/kernel/process.c:768)
[   27.088796][    C0]  default_idle_call (kernel/sched/idle.c:122)
[   27.088798][    C0]  cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   27.088800][    C0]  ? arch_cpu_idle_exit+0x40/0x40
[   27.088801][    C0]  ? mark_tsc_async_resets (arch/x86/kernel/tsc_sync.c:49)
[   27.088804][    C0]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   27.088805][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.088807][    C0]  do_idle (kernel/sched/idle.c:355)
[   27.088809][    C0]  cpu_startup_entry (kernel/sched/idle.c:454)
[   27.088810][    C0]  rest_init (init/main.c:727)
[   27.088812][    C0]  ? __cpuidle_text_end (??:?)
[   27.088815][    C0]  ? rest_init (init/main.c:727)
[   27.088817][    C0]  ? acpi_hw_set_mode (drivers/acpi/acpica/hwacpi.c:72 (discriminator 1))
[   27.088820][    C0]  ? cpus_read_unlock (./include/linux/percpu-rwsem.h:125 (discriminator 1) kernel/cpu.c:502 (discriminator 1))
[   27.088823][    C0]  ? acpi_enable (drivers/acpi/acpica/evxfevnt.c:47)
[   27.088825][    C0]  start_kernel (init/main.c:1185)
[   27.088827][    C0]  x86_64_start_reservations (arch/x86/kernel/head64.c:310)
[   27.088829][    C0]  x86_64_start_kernel (arch/x86/kernel/head64.c:291)
[   27.088831][    C0]  common_startup_64 (arch/x86/kernel/head_64.S:418)
| [   50.660356][ T2056] softirqs last disabled at (0): 0x0
| [   50.660357][ T2056] Preemption disabled at:
| [   50.660358][ T2056] 0x0
| [   50.660367][ T2056] Tainted: [W]=WARN
[   50.660367][ T2056] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   50.660369][ T2056] Call Trace:
[   50.660371][ T2056]  <TASK>
[   50.660372][ T2056]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   50.660378][ T2056]  __might_resched.cold (kernel/sched/core.c:9234)
[   50.660382][ T2056]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   50.660386][ T2056]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   50.660390][ T2056]  __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))
[   50.660394][ T2056]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   50.660396][ T2056]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   50.660401][ T2056]  ? 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)
[   50.660403][ T2056]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   50.660405][ T2056]  put_chars (drivers/char/virtio_console.c:1176)
[   50.660407][ T2056]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   50.660408][ T2056]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   50.660412][ T2056]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   50.660415][ T2056]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   50.660418][ T2056]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   50.660419][ T2056]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   50.660421][ T2056]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   50.660423][ T2056]  console_emit_next_record (kernel/printk/printk.c:3183)
[   50.660426][ T2056]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   50.660428][ T2056]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   50.660430][ T2056]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   50.660431][ T2056]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   50.660433][ T2056]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   50.660435][ T2056]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   50.660437][ T2056]  console_flush_one_record (kernel/printk/printk.c:3268)
[   50.660439][ T2056]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   50.660442][ T2056]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   50.660443][ T2056]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   50.660445][ T2056]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   50.660447][ T2056]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   50.660448][ T2056]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   50.660450][ T2056]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   50.660451][ T2056]  ? __rcu_read_lock (kernel/rcu/tree_plugin.h:391 (discriminator 6) kernel/rcu/tree_plugin.h:414 (discriminator 6))
[   50.660453][ T2056]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   50.660455][ T2056]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   50.660457][ T2056]  vprintk_emit (kernel/printk/printk.c:2479)
[   50.660460][ T2056]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   50.660462][ T2056]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   50.660464][ T2056]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   50.660466][ T2056]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:78)
[   50.660468][ T2056]  _printk (kernel/printk/printk.c:2504)
[   50.660471][ T2056]  ? snapshot_read.cold (user.c:?)
[   50.660473][ T2056]  ? ipv6_mc_down (net/ipv6/mcast.c:1137 net/ipv6/mcast.c:2792)
[   50.660478][ T2056] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   50.660492][ T2056] br_stp_disable_port (net/bridge/br_stp_if.c:106) bridge
[   50.660501][ T2056] br_device_event (net/bridge/br.c:111) bridge
[   50.660510][ T2056]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   50.660513][ T2056]  ? _sub_I_65535_1+0x4d0/0x4d0 stp
[   50.660518][ T2056]  ? addrconf_notify (net/ipv6/addrconf.c:3812)
[   50.660522][ T2056]  notifier_call_chain (kernel/notifier.c:85)
[   50.660525][ T2056]  __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855)
[   50.660529][ T2056]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   50.660531][ T2056]  ? netif_change_name (net/core/dev.c:1517)
[   50.660533][ T2056]  ? netif_set_allmulti (./include/net/netdev_lock.h:30 (discriminator 1))
[   50.660535][ T2056]  ? __kernel_text_address (kernel/extable.c:79)
[   50.660537][ T2056]  ? write_profile (profile.c:?)
[   50.660539][ T2056]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   50.660543][ T2056]  netif_change_flags (net/core/dev.c:9882)
[   50.660545][ T2056]  do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1))
[   50.660548][ T2056]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   50.660550][ T2056]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   50.660551][ T2056]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   50.660553][ T2056]  ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[   50.660556][ T2056]  ? kasan_save_stack (mm/kasan/common.c:58)
[   50.660559][ T2056]  ? kasan_save_stack (mm/kasan/common.c:57)
[   50.660561][ T2056]  ? kasan_save_track (mm/kasan/common.c:78)
[   50.660562][ T2056]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   50.660564][ T2056]  ? __kmalloc_cache_noprof (./include/linux/kasan.h:263 mm/slub.c:5563)
[   50.660566][ T2056]  ? rtnl_newlink (./include/linux/slab.h:991 (discriminator 1) net/core/rtnetlink.c:4113 (discriminator 1))
[   50.660567][ T2056]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   50.660568][ T2056]  ? netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   50.660571][ T2056]  ? netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   50.660572][ T2056]  ? netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   50.660574][ T2056]  ? ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   50.660576][ T2056]  ? ___sys_sendmsg (net/socket.c:2767)
[   50.660578][ T2056]  ? __sys_sendmsg (net/socket.c:2799)
[   50.660579][ T2056]  ? do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   50.660581][ T2056]  ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   50.660592][ T2056]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   50.660594][ T2056]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   50.660596][ T2056]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   50.660597][ T2056]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   50.660599][ T2056]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   50.660602][ T2056]  ? __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)
[   50.660604][ T2056]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   50.660605][ T2056]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   50.660607][ T2056]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   50.660609][ T2056]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   50.660612][ T2056]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   50.660614][ T2056]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   50.660615][ T2056]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   50.660617][ T2056]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   50.660618][ T2056]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   50.660620][ T2056]  ? is_bpf_text_address (./include/linux/rcupdate.h:850 kernel/bpf/core.c:749)
[   50.660624][ T2056]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   50.660625][ T2056]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   50.660627][ T2056]  ? __kernel_text_address (kernel/extable.c:79)
[   50.660628][ T2056]  ? write_profile (profile.c:?)
[   50.660629][ T2056]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   50.660631][ T2056]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   50.660632][ T2056]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   50.660634][ T2056]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   50.660638][ T2056]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   50.660639][ T2056]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   50.660641][ T2056]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   50.660642][ T2056]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   50.660644][ T2056]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   50.660645][ T2056]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[   50.660647][ T2056]  ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[   50.660649][ T2056]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   50.660651][ T2056]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   50.660652][ T2056]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   50.660654][ T2056]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   50.660655][ T2056]  ? __netlink_lookup (./include/linux/rcupdate.h:850 ./include/linux/rhashtable.h:709 net/netlink/af_netlink.c:499)
[   50.660658][ T2056]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   50.660659][ T2056]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   50.660661][ T2056]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   50.660663][ T2056]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   50.660665][ T2056]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   50.660667][ T2056]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   50.660668][ T2056]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   50.660670][ T2056]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   50.660672][ T2056]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   50.660674][ T2056]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   50.660676][ T2056]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   50.660678][ T2056]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   50.660679][ T2056]  ? copy_msghdr_from_user (net/socket.c:2650)
[   50.660681][ T2056]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   50.660683][ T2056]  ? move_addr_to_kernel (net/socket.c:258)
[   50.660684][ T2056]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[   50.660687][ T2056]  ___sys_sendmsg (net/socket.c:2767)
[   50.660688][ T2056]  ? copy_msghdr_from_user (net/socket.c:2619)
[   50.660693][ T2056]  __sys_sendmsg (net/socket.c:2799)
[   50.660695][ T2056]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   50.660698][ T2056]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   50.660700][ T2056]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   50.660701][ T2056]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   50.660704][ T2056]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   50.660705][ T2056] RIP: 0033:0x7effb0a3e54e
[   50.660707][ T2056] 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
[   50.660709][ T2056] RSP: 002b:00007ffc9ecd1270 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   50.660713][ T2056] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007effb0a3e54e
[   50.660715][ T2056] RDX: 0000000000000000 RSI: 00007ffc9ecd1320 RDI: 0000000000000005
[   50.660717][ T2056] RBP: 00007ffc9ecd1280 R08: 0000000000000000 R09: 0000000000000000
[   50.660719][ T2056] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a915243
[   50.660720][ T2056] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffc9ecd19e0
| [   88.200813][ T3878] softirqs last disabled at (0): 0x0
| [   88.200815][ T3878] Preemption disabled at:
| [   88.200815][ T3878] 0x0
| [   88.200824][ T3878] Tainted: [W]=WARN
[   88.200825][ T3878] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   88.200827][ T3878] Call Trace:
[   88.200829][ T3878]  <TASK>
[   88.200830][ T3878]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   88.200836][ T3878]  __might_resched.cold (kernel/sched/core.c:9234)
[   88.200840][ T3878]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   88.200843][ T3878]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   88.200847][ T3878]  __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))
[   88.200851][ T3878]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   88.200854][ T3878]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   88.200858][ T3878]  ? 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)
[   88.200860][ T3878]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   88.200862][ T3878]  put_chars (drivers/char/virtio_console.c:1176)
[   88.200864][ T3878]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   88.200866][ T3878]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   88.200869][ T3878]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   88.200872][ T3878]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   88.200874][ T3878]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   88.200876][ T3878]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   88.200878][ T3878]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   88.200880][ T3878]  console_emit_next_record (kernel/printk/printk.c:3183)
[   88.200883][ T3878]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   88.200885][ T3878]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   88.200886][ T3878]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   88.200888][ T3878]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   88.200890][ T3878]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   88.200892][ T3878]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   88.200894][ T3878]  console_flush_one_record (kernel/printk/printk.c:3268)
[   88.200896][ T3878]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   88.200899][ T3878]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   88.200901][ T3878]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   88.200902][ T3878]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   88.200904][ T3878]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   88.200906][ T3878]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   88.200907][ T3878]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   88.200909][ T3878]  ? __rcu_read_lock (kernel/rcu/tree_plugin.h:391 (discriminator 6) kernel/rcu/tree_plugin.h:414 (discriminator 6))
[   88.200911][ T3878]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   88.200913][ T3878]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   88.200915][ T3878]  vprintk_emit (kernel/printk/printk.c:2479)
[   88.200918][ T3878]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   88.200920][ T3878]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   88.200921][ T3878]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   88.200924][ T3878]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:78)
[   88.200926][ T3878]  _printk (kernel/printk/printk.c:2504)
[   88.200929][ T3878]  ? snapshot_read.cold (user.c:?)
[   88.200931][ T3878]  ? ipv6_mc_down (net/ipv6/mcast.c:1137 net/ipv6/mcast.c:2792)
[   88.200936][ T3878] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   88.200951][ T3878] br_stp_disable_port (net/bridge/br_stp_if.c:106) bridge
[   88.200959][ T3878] br_device_event (net/bridge/br.c:111) bridge
[   88.200968][ T3878]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   88.200972][ T3878]  ? _sub_I_65535_1+0x4d0/0x4d0 stp
[   88.200974][ T3878]  ? addrconf_notify (net/ipv6/addrconf.c:3812)
[   88.200978][ T3878]  notifier_call_chain (kernel/notifier.c:85)
[   88.200981][ T3878]  __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855)
[   88.200984][ T3878]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   88.200986][ T3878]  ? netif_change_name (net/core/dev.c:1517)
[   88.200989][ T3878]  ? netif_set_allmulti (./include/net/netdev_lock.h:30 (discriminator 1))
[   88.200991][ T3878]  ? __kernel_text_address (kernel/extable.c:79)
[   88.200993][ T3878]  ? write_profile (profile.c:?)
[   88.200995][ T3878]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   88.200998][ T3878]  netif_change_flags (net/core/dev.c:9882)
[   88.201000][ T3878]  do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1))
[   88.201003][ T3878]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   88.201005][ T3878]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   88.201006][ T3878]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   88.201008][ T3878]  ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[   88.201011][ T3878]  ? kasan_save_stack (mm/kasan/common.c:58)
[   88.201015][ T3878]  ? kasan_save_stack (mm/kasan/common.c:57)
[   88.201016][ T3878]  ? kasan_save_track (mm/kasan/common.c:78)
[   88.201018][ T3878]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   88.201019][ T3878]  ? __kmalloc_cache_noprof (./include/linux/kasan.h:263 mm/slub.c:5563)
[   88.201021][ T3878]  ? rtnl_newlink (./include/linux/slab.h:991 (discriminator 1) net/core/rtnetlink.c:4113 (discriminator 1))
[   88.201022][ T3878]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   88.201023][ T3878]  ? netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   88.201026][ T3878]  ? netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   88.201027][ T3878]  ? netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   88.201029][ T3878]  ? ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   88.201031][ T3878]  ? ___sys_sendmsg (net/socket.c:2767)
[   88.201033][ T3878]  ? __sys_sendmsg (net/socket.c:2799)
[   88.201035][ T3878]  ? do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   88.201037][ T3878]  ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   88.201039][ T3878]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   88.201041][ T3878]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   88.201042][ T3878]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   88.201044][ T3878]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   88.201046][ T3878]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   88.201049][ T3878]  ? __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)
[   88.201051][ T3878]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   88.201052][ T3878]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   88.201054][ T3878]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   88.201056][ T3878]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   88.201058][ T3878]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   88.201060][ T3878]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   88.201062][ T3878]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   88.201063][ T3878]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   88.201065][ T3878]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   88.201067][ T3878]  ? is_bpf_text_address (./include/linux/rcupdate.h:850 kernel/bpf/core.c:749)
[   88.201070][ T3878]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   88.201072][ T3878]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   88.201073][ T3878]  ? __kernel_text_address (kernel/extable.c:79)
[   88.201075][ T3878]  ? write_profile (profile.c:?)
[   88.201076][ T3878]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   88.201077][ T3878]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   88.201079][ T3878]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   88.201081][ T3878]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   88.201084][ T3878]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   88.201086][ T3878]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   88.201088][ T3878]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   88.201089][ T3878]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   88.201091][ T3878]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   88.201092][ T3878]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[   88.201094][ T3878]  ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[   88.201096][ T3878]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   88.201098][ T3878]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   88.201099][ T3878]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   88.201101][ T3878]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   88.201102][ T3878]  ? __netlink_lookup (./include/linux/rcupdate.h:850 ./include/linux/rhashtable.h:709 net/netlink/af_netlink.c:499)
[   88.201105][ T3878]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   88.201106][ T3878]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   88.201108][ T3878]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   88.201110][ T3878]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   88.201112][ T3878]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   88.201114][ T3878]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   88.201116][ T3878]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   88.201117][ T3878]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   88.201119][ T3878]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   88.201121][ T3878]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   88.201123][ T3878]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   88.201125][ T3878]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   88.201127][ T3878]  ? copy_msghdr_from_user (net/socket.c:2650)
[   88.201129][ T3878]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   88.201130][ T3878]  ? move_addr_to_kernel (net/socket.c:258)
[   88.201132][ T3878]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[   88.201134][ T3878]  ___sys_sendmsg (net/socket.c:2767)
[   88.201136][ T3878]  ? copy_msghdr_from_user (net/socket.c:2619)
[   88.201141][ T3878]  __sys_sendmsg (net/socket.c:2799)
[   88.201143][ T3878]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   88.201146][ T3878]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   88.201148][ T3878]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   88.201150][ T3878]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   88.201152][ T3878]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   88.201153][ T3878] RIP: 0033:0x7f9261c5154e
[   88.201155][ T3878] 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
[   88.201157][ T3878] RSP: 002b:00007fffd982cfe0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   88.201161][ T3878] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f9261c5154e
[   88.201163][ T3878] RDX: 0000000000000000 RSI: 00007fffd982d090 RDI: 0000000000000005
[   88.201164][ T3878] RBP: 00007fffd982cff0 R08: 0000000000000000 R09: 0000000000000000
[   88.201164][ T3878] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a915269
[   88.201165][ T3878] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fffd982d750
| [  163.133690][ T7757] softirqs last disabled at (0): 0x0
| [  163.133692][ T7757] Preemption disabled at:
| [  163.133692][ T7757] 0x0
| [  163.133701][ T7757] Tainted: [W]=WARN
[  163.133702][ T7757] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  163.133704][ T7757] Call Trace:
[  163.133705][ T7757]  <TASK>
[  163.133707][ T7757]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[  163.133713][ T7757]  __might_resched.cold (kernel/sched/core.c:9234)
[  163.133718][ T7757]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[  163.133723][ T7757]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  163.133728][ T7757]  __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))
[  163.133733][ T7757]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[  163.133736][ T7757]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[  163.133740][ T7757]  ? 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)
[  163.133742][ T7757]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[  163.133744][ T7757]  put_chars (drivers/char/virtio_console.c:1176)
[  163.133746][ T7757]  ? __send_to_port (drivers/char/virtio_console.c:654)
[  163.133748][ T7757]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[  163.133751][ T7757]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[  163.133755][ T7757]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[  163.133757][ T7757]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[  163.133758][ T7757]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  163.133760][ T7757]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  163.133763][ T7757]  console_emit_next_record (kernel/printk/printk.c:3183)
[  163.133765][ T7757]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[  163.133767][ T7757]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  163.133769][ T7757]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  163.133771][ T7757]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  163.133772][ T7757]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  163.133774][ T7757]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[  163.133776][ T7757]  console_flush_one_record (kernel/printk/printk.c:3268)
[  163.133778][ T7757]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[  163.133781][ T7757]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[  163.133783][ T7757]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  163.133784][ T7757]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[  163.133786][ T7757]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  163.133788][ T7757]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[  163.133789][ T7757]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[  163.133791][ T7757]  ? __rcu_read_lock (kernel/rcu/tree_plugin.h:391 (discriminator 6) kernel/rcu/tree_plugin.h:414 (discriminator 6))
[  163.133793][ T7757]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[  163.133795][ T7757]  ? vprintk_emit (kernel/printk/printk.c:2478)
[  163.133797][ T7757]  vprintk_emit (kernel/printk/printk.c:2479)
[  163.133800][ T7757]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[  163.133801][ T7757]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  163.133803][ T7757]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[  163.133806][ T7757]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:78)
[  163.133807][ T7757]  _printk (kernel/printk/printk.c:2504)
[  163.133810][ T7757]  ? snapshot_read.cold (user.c:?)
[  163.133813][ T7757]  ? ipv6_mc_down (net/ipv6/mcast.c:1137 net/ipv6/mcast.c:2792)
[  163.133818][ T7757] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[  163.133832][ T7757] br_stp_disable_port (net/bridge/br_stp_if.c:106) bridge
[  163.133840][ T7757] br_device_event (net/bridge/br.c:111) bridge
[  163.133849][ T7757]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[  163.133853][ T7757]  ? _sub_I_65535_1+0x4d0/0x4d0 stp
[  163.133855][ T7757]  ? addrconf_notify (net/ipv6/addrconf.c:3812)
[  163.133859][ T7757]  notifier_call_chain (kernel/notifier.c:85)
[  163.133862][ T7757]  __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855)
[  163.133866][ T7757]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[  163.133868][ T7757]  ? netif_change_name (net/core/dev.c:1517)
[  163.133870][ T7757]  ? netif_set_allmulti (./include/net/netdev_lock.h:30 (discriminator 1))
[  163.133872][ T7757]  ? __kernel_text_address (kernel/extable.c:79)
[  163.133874][ T7757]  ? write_profile (profile.c:?)
[  163.133877][ T7757]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[  163.133880][ T7757]  netif_change_flags (net/core/dev.c:9882)
[  163.133882][ T7757]  do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1))
[  163.133885][ T7757]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[  163.133887][ T7757]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[  163.133888][ T7757]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  163.133890][ T7757]  ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[  163.133894][ T7757]  ? kasan_save_stack (mm/kasan/common.c:58)
[  163.133896][ T7757]  ? kasan_save_stack (mm/kasan/common.c:57)
[  163.133898][ T7757]  ? kasan_save_track (mm/kasan/common.c:78)
[  163.133899][ T7757]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[  163.133901][ T7757]  ? __kmalloc_cache_noprof (./include/linux/kasan.h:263 mm/slub.c:5563)
[  163.133903][ T7757]  ? rtnl_newlink (./include/linux/slab.h:991 (discriminator 1) net/core/rtnetlink.c:4113 (discriminator 1))
[  163.133904][ T7757]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[  163.133905][ T7757]  ? netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[  163.133908][ T7757]  ? netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[  163.133909][ T7757]  ? netlink_sendmsg (net/netlink/af_netlink.c:1900)
[  163.133910][ T7757]  ? ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[  163.133913][ T7757]  ? ___sys_sendmsg (net/socket.c:2767)
[  163.133914][ T7757]  ? __sys_sendmsg (net/socket.c:2799)
[  163.133916][ T7757]  ? do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[  163.133918][ T7757]  ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  163.133921][ T7757]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  163.133923][ T7757]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  163.133924][ T7757]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  163.133926][ T7757]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  163.133928][ T7757]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[  163.133931][ T7757]  ? __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)
[  163.133932][ T7757]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[  163.133934][ T7757]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[  163.133935][ T7757]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[  163.133937][ T7757]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[  163.133939][ T7757]  rtnl_newlink (net/core/rtnetlink.c:4215)
[  163.133941][ T7757]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  163.133943][ T7757]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  163.133944][ T7757]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  163.133946][ T7757]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  163.133948][ T7757]  ? is_bpf_text_address (./include/linux/rcupdate.h:850 kernel/bpf/core.c:749)
[  163.133951][ T7757]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[  163.133953][ T7757]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[  163.133954][ T7757]  ? __kernel_text_address (kernel/extable.c:79)
[  163.133956][ T7757]  ? write_profile (profile.c:?)
[  163.133957][ T7757]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[  163.133958][ T7757]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  163.133960][ T7757]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  163.133962][ T7757]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[  163.133966][ T7757]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  163.133967][ T7757]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  163.133969][ T7757]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  163.133970][ T7757]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[  163.133972][ T7757]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[  163.133973][ T7757]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[  163.133975][ T7757]  ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[  163.133977][ T7757]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[  163.133979][ T7757]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[  163.133980][ T7757]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[  163.133982][ T7757]  ? netlink_ack (./include/linux/skbuff.h:2718)
[  163.133983][ T7757]  ? __netlink_lookup (./include/linux/rcupdate.h:850 ./include/linux/rhashtable.h:709 net/netlink/af_netlink.c:499)
[  163.133986][ T7757]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  163.133987][ T7757]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[  163.133989][ T7757]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[  163.133991][ T7757]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[  163.133993][ T7757]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  163.133995][ T7757]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  163.133996][ T7757]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  163.133998][ T7757]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[  163.134000][ T7757]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[  163.134002][ T7757]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  163.134004][ T7757]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[  163.134006][ T7757]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[  163.134007][ T7757]  ? copy_msghdr_from_user (net/socket.c:2650)
[  163.134009][ T7757]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[  163.134011][ T7757]  ? move_addr_to_kernel (net/socket.c:258)
[  163.134012][ T7757]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[  163.134015][ T7757]  ___sys_sendmsg (net/socket.c:2767)
[  163.134017][ T7757]  ? copy_msghdr_from_user (net/socket.c:2619)
[  163.134022][ T7757]  __sys_sendmsg (net/socket.c:2799)
[  163.134024][ T7757]  ? __sys_sendmsg_sock (net/socket.c:2780)
[  163.134026][ T7757]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  163.134029][ T7757]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[  163.134030][ T7757]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[  163.134032][ T7757]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  163.134034][ T7757] RIP: 0033:0x7f9a689e254e
[  163.134035][ T7757] 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
[  163.134037][ T7757] RSP: 002b:00007ffcf98e5cc0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[  163.134041][ T7757] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f9a689e254e
[  163.134043][ T7757] RDX: 0000000000000000 RSI: 00007ffcf98e5d70 RDI: 0000000000000005
[  163.134044][ T7757] RBP: 00007ffcf98e5cd0 R08: 0000000000000000 R09: 0000000000000000
[  163.134044][ T7757] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9152b4
[  163.134045][ T7757] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffcf98e6430
| [  168.757718][ T7807] softirqs last disabled at (0): 0x0
| [  168.757721][ T7807] Preemption disabled at:
| [  168.757722][ T7807] 0x0
| [  168.757732][ T7807] Tainted: [W]=WARN
[  168.757733][ T7807] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  168.757735][ T7807] Call Trace:
[  168.757737][ T7807]  <TASK>
[  168.757738][ T7807]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[  168.757744][ T7807]  __might_resched.cold (kernel/sched/core.c:9234)
[  168.757748][ T7807]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[  168.757751][ T7807]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  168.757755][ T7807]  __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))
[  168.757759][ T7807]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[  168.757762][ T7807]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[  168.757766][ T7807]  ? 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)
[  168.757767][ T7807]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[  168.757769][ T7807]  put_chars (drivers/char/virtio_console.c:1176)
[  168.757771][ T7807]  ? desc_read_finalized_seq (kernel/printk/printk_ringbuffer.c:1934)
[  168.757773][ T7807]  ? __send_to_port (drivers/char/virtio_console.c:654)
[  168.757775][ T7807]  ? console_prepend_replay (kernel/printk/printk.c:3005)
[  168.757778][ T7807]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[  168.757781][ T7807]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[  168.757782][ T7807]  ? 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)
[  168.757784][ T7807]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[  168.757786][ T7807]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  168.757787][ T7807]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  168.757789][ T7807]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  168.757791][ T7807]  console_emit_next_record (kernel/printk/printk.c:3183)
[  168.757794][ T7807]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[  168.757796][ T7807]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  168.757797][ T7807]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  168.757799][ T7807]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  168.757800][ T7807]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  168.757802][ T7807]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[  168.757804][ T7807]  console_flush_one_record (kernel/printk/printk.c:3268)
[  168.757806][ T7807]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[  168.757809][ T7807]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[  168.757811][ T7807]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  168.757812][ T7807]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[  168.757814][ T7807]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  168.757816][ T7807]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[  168.757817][ T7807]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[  168.757818][ T7807]  ? __rcu_read_lock (kernel/rcu/tree_plugin.h:391 (discriminator 6) kernel/rcu/tree_plugin.h:414 (discriminator 6))
[  168.757821][ T7807]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[  168.757822][ T7807]  ? vprintk_emit (kernel/printk/printk.c:2478)
[  168.757825][ T7807]  vprintk_emit (kernel/printk/printk.c:2479)
[  168.757828][ T7807]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[  168.757830][ T7807]  ? debug_object_assert_init (lib/debugobjects.c:1072 (discriminator 3))
[  168.757833][ T7807]  ? debug_object_activate (lib/debugobjects.c:884)
[  168.757836][ T7807]  _printk (kernel/printk/printk.c:2504)
[  168.757839][ T7807]  ? snapshot_read.cold (user.c:?)
[  168.757841][ T7807]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[  168.757842][ T7807]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  168.757844][ T7807]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[  168.757848][ T7807] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[  168.757863][ T7807] br_stp_disable_port (net/bridge/br_stp_if.c:106) bridge
[  168.757871][ T7807] br_stp_disable_bridge (net/bridge/br_stp_if.c:76) bridge
[  168.757878][ T7807] br_dev_stop (net/bridge/br_device.c:193) bridge
[  168.757887][ T7807]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[  168.757891][ T7807]  __dev_close_many (net/core/dev.c:1798)
[  168.757894][ T7807]  ? netif_open (net/core/dev.c:1755)
[  168.757896][ T7807]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  168.757898][ T7807]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[  168.757900][ T7807]  __dev_change_flags (net/core/dev.c:1811 net/core/dev.c:9810)
[  168.757902][ T7807]  ? netif_set_allmulti (./include/net/netdev_lock.h:30 (discriminator 1))
[  168.757904][ T7807]  ? __kernel_text_address (kernel/extable.c:79)
[  168.757907][ T7807]  ? write_profile (profile.c:?)
[  168.757909][ T7807]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[  168.757912][ T7807]  netif_change_flags (net/core/dev.c:9877)
[  168.757914][ T7807]  do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1))
[  168.757916][ T7807]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[  168.757918][ T7807]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[  168.757919][ T7807]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  168.757921][ T7807]  ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[  168.757924][ T7807]  ? kasan_save_stack (mm/kasan/common.c:58)
[  168.757927][ T7807]  ? kasan_save_stack (mm/kasan/common.c:57)
[  168.757928][ T7807]  ? kasan_save_track (mm/kasan/common.c:78)
[  168.757930][ T7807]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[  168.757931][ T7807]  ? __kmalloc_cache_noprof (./include/linux/kasan.h:263 mm/slub.c:5563)
[  168.757933][ T7807]  ? rtnl_newlink (./include/linux/slab.h:991 (discriminator 1) net/core/rtnetlink.c:4113 (discriminator 1))
[  168.757934][ T7807]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[  168.757935][ T7807]  ? netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[  168.757938][ T7807]  ? netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[  168.757940][ T7807]  ? netlink_sendmsg (net/netlink/af_netlink.c:1900)
[  168.757941][ T7807]  ? ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[  168.757943][ T7807]  ? ___sys_sendmsg (net/socket.c:2767)
[  168.757945][ T7807]  ? __sys_sendmsg (net/socket.c:2799)
[  168.757946][ T7807]  ? do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[  168.757949][ T7807]  ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  168.757952][ T7807]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  168.757953][ T7807]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  168.757955][ T7807]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  168.757956][ T7807]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  168.757958][ T7807]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[  168.757962][ T7807]  ? __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)
[  168.757964][ T7807]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[  168.757965][ T7807]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[  168.757967][ T7807]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[  168.757969][ T7807]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[  168.757971][ T7807]  rtnl_newlink (net/core/rtnetlink.c:4215)
[  168.757973][ T7807]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  168.757975][ T7807]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  168.757976][ T7807]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  168.757978][ T7807]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  168.757980][ T7807]  ? is_bpf_text_address (./include/linux/rcupdate.h:850 kernel/bpf/core.c:749)
[  168.757983][ T7807]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[  168.757985][ T7807]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[  168.757986][ T7807]  ? __kernel_text_address (kernel/extable.c:79)
[  168.757988][ T7807]  ? write_profile (profile.c:?)
[  168.757989][ T7807]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[  168.757990][ T7807]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  168.757992][ T7807]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  168.757993][ T7807]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[  168.757997][ T7807]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  168.757998][ T7807]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  168.758000][ T7807]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  168.758002][ T7807]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[  168.758003][ T7807]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[  168.758005][ T7807]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[  168.758006][ T7807]  ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[  168.758009][ T7807]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[  168.758010][ T7807]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[  168.758011][ T7807]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[  168.758013][ T7807]  ? netlink_ack (./include/linux/skbuff.h:2718)
[  168.758014][ T7807]  ? __netlink_lookup (./include/linux/rcupdate.h:850 ./include/linux/rhashtable.h:709 net/netlink/af_netlink.c:499)
[  168.758017][ T7807]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  168.758019][ T7807]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[  168.758021][ T7807]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[  168.758022][ T7807]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[  168.758024][ T7807]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  168.758026][ T7807]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  168.758027][ T7807]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  168.758029][ T7807]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[  168.758031][ T7807]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[  168.758033][ T7807]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  168.758035][ T7807]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[  168.758037][ T7807]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[  168.758038][ T7807]  ? copy_msghdr_from_user (net/socket.c:2650)
[  168.758040][ T7807]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[  168.758042][ T7807]  ? move_addr_to_kernel (net/socket.c:258)
[  168.758043][ T7807]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[  168.758046][ T7807]  ___sys_sendmsg (net/socket.c:2767)
[  168.758047][ T7807]  ? copy_msghdr_from_user (net/socket.c:2619)
[  168.758052][ T7807]  __sys_sendmsg (net/socket.c:2799)
[  168.758054][ T7807]  ? __sys_sendmsg_sock (net/socket.c:2780)
[  168.758057][ T7807]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  168.758059][ T7807]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[  168.758061][ T7807]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[  168.758063][ T7807]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  168.758064][ T7807] RIP: 0033:0x7f79ba29154e
[  168.758066][ T7807] 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
[  168.758068][ T7807] RSP: 002b:00007ffcf9d600c0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[  168.758072][ T7807] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f79ba29154e
[  168.758074][ T7807] RDX: 0000000000000000 RSI: 00007ffcf9d60170 RDI: 0000000000000005
[  168.758074][ T7807] RBP: 00007ffcf9d600d0 R08: 0000000000000000 R09: 0000000000000000
[  168.758075][ T7807] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9152b9


Finger prints:
mark_lock_irq:mark_lock:mark_usage:__lock_acquire:_raw_spin_lock
__irq_exit_rcu:schedule_preempt_disabled:dump_stack_lvl:__kmalloc_noprof:put_chars
__irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print
__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