======================================
| [   10.198843][  T186] softirqs last disabled at (37365): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   10.198846][  T186] Preemption disabled at:
| [   10.198847][  T186] 0x0
| [   10.198859][  T186] Tainted: [W]=WARN
[   10.198861][  T186] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.198863][  T186] Call Trace:
[   10.198865][  T186]  <TASK>
[   10.198867][  T186]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   10.198876][  T186]  __might_resched.cold (kernel/sched/core.c:9234)
[   10.198882][  T186]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   10.198887][  T186]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   10.198895][  T186]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   10.198899][  T186]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.198908][  T186]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   10.198911][  T186]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.198916][  T186]  put_chars (drivers/char/virtio_console.c:1176)
[   10.198921][  T186]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   10.198923][  T186]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   10.198929][  T186]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   10.198939][  T186]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   10.198949][  T186]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   10.198953][  T186]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.198956][  T186]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.198963][  T186]  console_emit_next_record (kernel/printk/printk.c:3183)
[   10.198969][  T186]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   10.198971][  T186]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   10.198976][  T186]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.198980][  T186]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.198987][  T186]  console_flush_one_record (kernel/printk/printk.c:3268)
[   10.198993][  T186]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   10.198996][  T186]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.199005][  T186]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   10.199009][  T186]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   10.199012][  T186]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.199015][  T186]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   10.199021][  T186]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   10.199024][  T186]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   10.199029][  T186]  vprintk_emit (kernel/printk/printk.c:2479)
[   10.199035][  T186]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   10.199040][  T186]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.199046][  T186]  _printk (kernel/printk/printk.c:2504)
[   10.199051][  T186]  ? snapshot_read.cold (user.c:?)
[   10.199056][  T186]  ? do_raw_spin_lock (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:1301 ./include/asm-generic/qspinlock.h:112 kernel/locking/spinlock_debug.c:116)
[   10.199059][  T186]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   10.199066][  T186]  ? do_raw_spin_lock (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:1301 ./include/asm-generic/qspinlock.h:112 kernel/locking/spinlock_debug.c:116)
[   10.199070][  T186]  do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4))
[   10.199075][  T186]  ? exit_notify (kernel/exit.c:780)
[   10.199078][  T186]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   10.199082][  T186]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.199089][  T186]  do_group_exit (kernel/exit.c:1151)
[   10.199094][  T186]  __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160)
[   10.199097][  T186]  x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232)
[   10.199100][  T186]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   10.199104][  T186]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   10.199109][  T186]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.199112][  T186] RIP: 0033:0x7f52489241b8
[   10.199115][  T186] Code: Unable to access opcode bytes at 0x7f524892418e.

Code starting with the faulting instruction
===========================================
[   10.199117][  T186] RSP: 002b:00007fffb3fceca8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[   10.199120][  T186] RAX: ffffffffffffffda RBX: 00007f5248a54f88 RCX: 00007f52489241b8
[   10.199122][  T186] RDX: 00007f524866efc8 RSI: fffffffffffffeb8 RDI: 0000000000000000
[   10.199124][  T186] RBP: 00007fffb3fced00 R08: 0000000000000000 R09: 0000000000008010
[   10.199125][  T186] R10: 00007fffb3fceac0 R11: 0000000000000246 R12: 0000000000000001
[   10.199127][  T186] R13: 0000000000000000 R14: 00007f5248a53680 R15: 00007f5248a54fa0
| [   11.776788][  T260] softirqs last disabled at (24422): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   11.776791][  T260] Preemption disabled at:
| [   11.776792][  T260] vprintk_emit (kernel/printk/printk.c:2471)
| [   11.776804][  T260] Tainted: [W]=WARN
[   11.776806][  T260] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.776808][  T260] Call Trace:
[   11.776810][  T260]  <TASK>
[   11.776812][  T260]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   11.776820][  T260]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   11.776823][  T260]  __might_resched.cold (kernel/sched/core.c:9234)
[   11.776829][  T260]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   11.776835][  T260]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   11.776843][  T260]  __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))
[   11.776846][  T260]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.776855][  T260]  ? 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)
[   11.776859][  T260]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.776864][  T260]  put_chars (drivers/char/virtio_console.c:1176)
[   11.776869][  T260]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   11.776877][  T260]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   11.776883][  T260]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   11.776887][  T260]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   11.776890][  T260]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.776892][  T260]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.776899][  T260]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   11.776902][  T260]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   11.776908][  T260]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.776913][  T260]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.776920][  T260]  console_emit_next_record (kernel/printk/printk.c:3183)
[   11.776926][  T260]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   11.776928][  T260]  ? 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))
[   11.776934][  T260]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.776937][  T260]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.776944][  T260]  console_flush_one_record (kernel/printk/printk.c:3268)
[   11.776951][  T260]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   11.776954][  T260]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.776963][  T260]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   11.776967][  T260]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   11.776970][  T260]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.776974][  T260]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   11.776980][  T260]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   11.776983][  T260]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   11.776988][  T260]  vprintk_emit (kernel/printk/printk.c:2479)
[   11.776995][  T260]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   11.776999][  T260]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.777001][  T260]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   11.777007][  T260]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   11.777014][  T260]  _printk (kernel/printk/printk.c:2504)
[   11.777019][  T260]  ? snapshot_read.cold (user.c:?)
[   11.777025][  T260]  ? br_multicast_flood (??:?) bridge
[   11.777042][  T260]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   11.777045][  T260]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   11.777047][  T260]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   11.777055][  T260] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   11.777072][  T260] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   11.777085][  T260] new_nbp (net/bridge/br_if.c:449) bridge
[   11.777101][  T260] br_add_if (net/bridge/br_if.c:592) bridge
[   11.777113][  T260]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   11.777118][  T260]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   11.777123][  T260]  ? __kernel_text_address (kernel/extable.c:79)
[   11.777130][  T260]  do_set_master (net/core/rtnetlink.c:3071)
[   11.777137][  T260]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   11.777143][  T260]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   11.777147][  T260]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   11.777149][  T260]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   11.777153][  T260]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   11.777158][  T260]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   11.777162][  T260]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   11.777165][  T260]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   11.777169][  T260]  ? kasan_save_stack (mm/kasan/common.c:58)
[   11.777174][  T260]  ? kasan_save_stack (mm/kasan/common.c:57)
[   11.777176][  T260]  ? kasan_save_track (mm/kasan/common.c:78)
[   11.777180][  T260]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.777189][  T260]  ? netlink_seq_next (net/netlink/af_netlink.c:2684)
[   11.777193][  T260]  ? ___sys_sendmsg (net/socket.c:2757)
[   11.777200][  T260]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.777203][  T260]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   11.777208][  T260]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.777211][  T260]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.777214][  T260]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.777217][  T260]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.777222][  T260]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   11.777228][  T260]  ? __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)
[   11.777230][  T260]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   11.777234][  T260]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   11.777240][  T260]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   11.777243][  T260]  ? nla_get_range_signed (lib/nlattr.c:270)
[   11.777252][  T260]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   11.777261][  T260]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   11.777271][  T260]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.777274][  T260]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.777282][  T260]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.777285][  T260]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   11.777288][  T260]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.777291][  T260]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.777298][  T260]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.777301][  T260]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   11.777307][  T260]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.777309][  T260]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.777317][  T260]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.777320][  T260]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   11.777326][  T260]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   11.777329][  T260]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.777334][  T260]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   11.777345][  T260]  ? 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))
[   11.777348][  T260]  ? 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))
[   11.777355][  T260]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   11.777362][  T260]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   11.777366][  T260]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.777373][  T260]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   11.777380][  T260]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   11.777387][  T260]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   11.777395][  T260]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   11.777400][  T260]  ? copy_msghdr_from_user (net/socket.c:2650)
[   11.777403][  T260]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   11.777406][  T260]  ? move_addr_to_kernel (net/socket.c:258)
[   11.777419][  T260]  ___sys_sendmsg (net/socket.c:2767)
[   11.777424][  T260]  ? copy_msghdr_from_user (net/socket.c:2619)
[   11.777453][  T260]  __sys_sendmsg (net/socket.c:2799)
[   11.777458][  T260]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   11.777469][  T260]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.777475][  T260]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   11.777479][  T260]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   11.777484][  T260]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.777487][  T260] RIP: 0033:0x7fbee69a754e
[   11.777492][  T260] 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
[   11.777494][  T260] RSP: 002b:00007ffc31082e00 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   11.777498][  T260] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fbee69a754e
[   11.777501][  T260] RDX: 0000000000000000 RSI: 00007ffc31082eb0 RDI: 0000000000000005
[   11.777502][  T260] RBP: 00007ffc31082e10 R08: 0000000000000000 R09: 0000000000000000
[   11.777503][  T260] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91b623
[   11.777505][  T260] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffc31083570
| [   26.998310][    C1] softirqs last disabled at (802263): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   26.998311][    C1] Preemption disabled at:
| [   26.998312][    C1] 0x0
| [   26.998322][    C1] Tainted: [W]=WARN
[   26.998323][    C1] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   26.998325][    C1] Call Trace:
[   26.998326][    C1]  <IRQ>
[   26.998328][    C1]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   26.998333][    C1]  __might_resched.cold (kernel/sched/core.c:9234)
[   26.998337][    C1]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   26.998340][    C1]  ? __asan_memcpy (mm/kasan/shadow.c:106 (discriminator 1))
[   26.998343][    C1]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.998347][    C1]  __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))
[   26.998350][    C1]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   26.998353][    C1]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   26.998357][    C1]  ? 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)
[   26.998358][    C1]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   26.998360][    C1]  put_chars (drivers/char/virtio_console.c:1176)
[   26.998362][    C1]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   26.998364][    C1]  ? console_prepend_replay (kernel/printk/printk.c:3005)
[   26.998367][    C1]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   26.998371][    C1]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   26.998372][    C1]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.998374][    C1]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   26.998376][    C1]  console_emit_next_record (kernel/printk/printk.c:3183)
[   26.998379][    C1]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   26.998381][    C1]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.998382][    C1]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.998384][    C1]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   26.998386][    C1]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   26.998388][    C1]  console_flush_one_record (kernel/printk/printk.c:3268)
[   26.998390][    C1]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   26.998392][    C1]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   26.998394][    C1]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   26.998396][    C1]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   26.998397][    C1]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.998399][    C1]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   26.998400][    C1]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   26.998402][    C1]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   26.998404][    C1]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   26.998406][    C1]  vprintk_emit (kernel/printk/printk.c:2479)
[   26.998408][    C1]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   26.998410][    C1]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   26.998422][    C1]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   26.998423][    C1]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   26.998430][    C1]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   26.998436][    C1]  ? is_module_text_address (./include/linux/rcupdate.h:882 ./include/linux/rcupdate.h:1216 kernel/module/main.c:3934)
[   26.998440][    C1]  _printk (kernel/printk/printk.c:2504)
[   26.998443][    C1]  ? snapshot_read.cold (user.c:?)
[   26.998444][    C1]  ? arch_stack_walk (arch/x86/kernel/stacktrace.c:25)
[   26.998448][    C1]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   26.998451][    C1]  ? nbcon_cpu_emergency_enter (./include/linux/instrumented.h:112 ./include/linux/atomic/atomic-instrumented.h:435 kernel/printk/nbcon.c:1723)
[   26.998452][    C1]  print_irq_inversion_bug.part.0 (kernel/locking/lockdep.c:4097 (discriminator 1))
[   26.998455][    C1]  mark_lock_irq (kernel/locking/lockdep.c:4095 kernel/locking/lockdep.c:4174 kernel/locking/lockdep.c:4310)
[   26.998458][    C1]  mark_lock (kernel/locking/lockdep.c:4769)
[   26.998460][    C1]  mark_usage (kernel/locking/lockdep.c:4658)
[   26.998461][    C1]  __lock_acquire (kernel/locking/lockdep.c:5208)
[   26.998464][    C1]  lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   26.998465][    C1]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   26.998472][    C1]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.998474][    C1]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   26.998476][    C1]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   26.998482][    C1]  _raw_spin_lock (./include/linux/spinlock_api_smp.h:190 (discriminator 1) kernel/locking/spinlock.c:173 (discriminator 1))
[   26.998484][    C1]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   26.998490][    C1] br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   26.998496][    C1]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   26.998503][    C1]  call_timer_fn (kernel/time/timer.c:1748)
[   26.998505][    C1]  ? detach_if_pending (./include/linux/list.h:1159)
[   26.998507][    C1]  ? debug_object_active_state (lib/debugobjects.c:1122)
[   26.998511][    C1]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   26.998512][    C1]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   26.998514][    C1]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.998516][    C1]  __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2374)
[   26.998518][    C1]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   26.998525][    C1]  ? __bpf_trace_itimer_expire (./include/trace/events/timer.h:407)
[   26.998527][    C1]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   26.998530][    C1]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   26.998532][    C1]  run_timer_softirq (kernel/time/timer.c:2386 kernel/time/timer.c:2395 kernel/time/timer.c:2403)
[   26.998534][    C1]  ? __run_timers (./include/trace/events/timer.h:138 (discriminator 19))
[   26.998536][    C1]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   26.998538][    C1]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.998540][    C1]  handle_softirqs (kernel/softirq.c:645)
[   26.998542][    C1]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   26.998543][    C1]  ? _local_bh_enable (kernel/softirq.c:428 (discriminator 1))
[   26.998545][    C1]  __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
[   26.998547][    C1]  irq_exit_rcu (kernel/softirq.c:784)
[   26.998548][    C1]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1062 (discriminator 37) arch/x86/kernel/apic/apic.c:1062 (discriminator 37))
[   26.998551][    C1]  </IRQ>
[   26.998552][    C1]  <TASK>
[   26.998552][    C1]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   26.998554][    C1]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:674)
[   26.998556][    C1] RIP: 0010:pv_native_safe_halt (./arch/x86/include/asm/irqflags.h:48 arch/x86/kernel/paravirt.c:63)
[   26.998559][    C1] Code: 48 8b 3d 94 d2 f5 01 e8 1f 00 00 00 48 2b 05 58 93 95 00 c3 0f 1f 80 00 00 00 00 f3 0f 1e fa eb 07 0f 00 2d 13 86 11 00 fb f4 <c3> 0f 1f 40 d6 48 83 ec 20 8b 17 49 89 f8 83 e2 fe 41 89 d2 0f 01
All code
========
   0:	48 8b 3d 94 d2 f5 01 	mov    0x1f5d294(%rip),%rdi        # 0x1f5d29b
   7:	e8 1f 00 00 00       	call   0x2b
   c:	48 2b 05 58 93 95 00 	sub    0x959358(%rip),%rax        # 0x95936b
  13:	c3                   	ret
  14:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  1b:	f3 0f 1e fa          	endbr64
  1f:	eb 07                	jmp    0x28
  21:	0f 00 2d 13 86 11 00 	verw   0x118613(%rip)        # 0x11863b
  28:	fb                   	sti
  29:	f4                   	hlt
  2a:*	c3                   	ret		<-- trapping instruction
  2b:	0f 1f 40 d6          	nopl   -0x2a(%rax)
  2f:	48 83 ec 20          	sub    $0x20,%rsp
  33:	8b 17                	mov    (%rdi),%edx
  35:	49 89 f8             	mov    %rdi,%r8
  38:	83 e2 fe             	and    $0xfffffffe,%edx
  3b:	41 89 d2             	mov    %edx,%r10d
  3e:	0f                   	.byte 0xf
  3f:	01                   	.byte 0x1

Code starting with the faulting instruction
===========================================
   0:	c3                   	ret
   1:	0f 1f 40 d6          	nopl   -0x2a(%rax)
   5:	48 83 ec 20          	sub    $0x20,%rsp
   9:	8b 17                	mov    (%rdi),%edx
   b:	49 89 f8             	mov    %rdi,%r8
   e:	83 e2 fe             	and    $0xfffffffe,%edx
  11:	41 89 d2             	mov    %edx,%r10d
  14:	0f                   	.byte 0xf
  15:	01                   	.byte 0x1
[   26.998561][    C1] RSP: 0018:ffa0000000147e00 EFLAGS: 00000282
[   26.998564][    C1] RAX: 00000000000c3dd5 RBX: ff11000001bea380 RCX: ffffffffb24f0307
[   26.998566][    C1] RDX: ff11000001bea380 RSI: ffffffffb5238af6 RDI: ffffffffb4c8d8e0
[   26.998566][    C1] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[   26.998568][    C1] R10: 0000000000000001 R11: 0000000000000001 R12: 1ff4000000028fc3
[   26.998568][    C1] R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000000
[   26.998570][    C1]  ? cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   26.998573][    C1]  default_idle (./arch/x86/include/asm/paravirt.h:62 arch/x86/kernel/process.c:768)
[   26.998575][    C1]  default_idle_call (kernel/sched/idle.c:122)
[   26.998577][    C1]  cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   26.998578][    C1]  ? arch_cpu_idle_exit+0x40/0x40
[   26.998580][    C1]  ? mark_tsc_async_resets (arch/x86/kernel/tsc_sync.c:49)
[   26.998582][    C1]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.998585][    C1]  do_idle (kernel/sched/idle.c:355)
[   26.998586][    C1]  cpu_startup_entry (kernel/sched/idle.c:454)
[   26.998588][    C1]  start_secondary (arch/x86/kernel/smpboot.c:312)
[   26.998590][    C1]  ? set_cpu_sibling_map (arch/x86/kernel/smpboot.c:733 (discriminator 4))
[   26.998592][    C1]  common_startup_64 (arch/x86/kernel/head_64.S:418)
| [   27.053409][    C1]
| [   27.053474][    C1]
| [   27.053474][    C1] stack backtrace:
| [   27.053691][    C1] Tainted: [W]=WARN
[   27.053692][    C1] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   27.053693][    C1] Call Trace:
[   27.053694][    C1]  <IRQ>
[   27.053696][    C1]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   27.053700][    C1]  print_irq_inversion_bug.part.0.cold (kernel/locking/lockdep.c:4141)
[   27.053703][    C1]  mark_lock_irq (kernel/locking/lockdep.c:4095 kernel/locking/lockdep.c:4174 kernel/locking/lockdep.c:4310)
[   27.053706][    C1]  mark_lock (kernel/locking/lockdep.c:4769)
[   27.053707][    C1]  mark_usage (kernel/locking/lockdep.c:4658)
[   27.053709][    C1]  __lock_acquire (kernel/locking/lockdep.c:5208)
[   27.053711][    C1]  lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   27.053713][    C1]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   27.053720][    C1]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.053723][    C1]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   27.053725][    C1]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   27.053731][    C1]  _raw_spin_lock (./include/linux/spinlock_api_smp.h:190 (discriminator 1) kernel/locking/spinlock.c:173 (discriminator 1))
[   27.053732][    C1]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   27.053738][    C1] br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   27.053745][    C1]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   27.053751][    C1]  call_timer_fn (kernel/time/timer.c:1748)
[   27.053753][    C1]  ? detach_if_pending (./include/linux/list.h:1159)
[   27.053755][    C1]  ? debug_object_active_state (lib/debugobjects.c:1122)
[   27.053759][    C1]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   27.053761][    C1]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   27.053762][    C1]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.053764][    C1]  __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2374)
[   27.053766][    C1]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   27.053773][    C1]  ? __bpf_trace_itimer_expire (./include/trace/events/timer.h:407)
[   27.053774][    C1]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   27.053777][    C1]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   27.053779][    C1]  run_timer_softirq (kernel/time/timer.c:2386 kernel/time/timer.c:2395 kernel/time/timer.c:2403)
[   27.053781][    C1]  ? __run_timers (./include/trace/events/timer.h:138 (discriminator 19))
[   27.053783][    C1]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   27.053785][    C1]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.053787][    C1]  handle_softirqs (kernel/softirq.c:645)
[   27.053789][    C1]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   27.053791][    C1]  ? _local_bh_enable (kernel/softirq.c:428 (discriminator 1))
[   27.053792][    C1]  __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
[   27.053794][    C1]  irq_exit_rcu (kernel/softirq.c:784)
[   27.053795][    C1]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1062 (discriminator 37) arch/x86/kernel/apic/apic.c:1062 (discriminator 37))
[   27.053797][    C1]  </IRQ>
[   27.053798][    C1]  <TASK>
[   27.053798][    C1]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   27.053800][    C1]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:674)
[   27.053801][    C1] RIP: 0010:pv_native_safe_halt (./arch/x86/include/asm/irqflags.h:48 arch/x86/kernel/paravirt.c:63)
[   27.053803][    C1] Code: 48 8b 3d 94 d2 f5 01 e8 1f 00 00 00 48 2b 05 58 93 95 00 c3 0f 1f 80 00 00 00 00 f3 0f 1e fa eb 07 0f 00 2d 13 86 11 00 fb f4 <c3> 0f 1f 40 d6 48 83 ec 20 8b 17 49 89 f8 83 e2 fe 41 89 d2 0f 01
All code
========
   0:	48 8b 3d 94 d2 f5 01 	mov    0x1f5d294(%rip),%rdi        # 0x1f5d29b
   7:	e8 1f 00 00 00       	call   0x2b
   c:	48 2b 05 58 93 95 00 	sub    0x959358(%rip),%rax        # 0x95936b
  13:	c3                   	ret
  14:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  1b:	f3 0f 1e fa          	endbr64
  1f:	eb 07                	jmp    0x28
  21:	0f 00 2d 13 86 11 00 	verw   0x118613(%rip)        # 0x11863b
  28:	fb                   	sti
  29:	f4                   	hlt
  2a:*	c3                   	ret		<-- trapping instruction
  2b:	0f 1f 40 d6          	nopl   -0x2a(%rax)
  2f:	48 83 ec 20          	sub    $0x20,%rsp
  33:	8b 17                	mov    (%rdi),%edx
  35:	49 89 f8             	mov    %rdi,%r8
  38:	83 e2 fe             	and    $0xfffffffe,%edx
  3b:	41 89 d2             	mov    %edx,%r10d
  3e:	0f                   	.byte 0xf
  3f:	01                   	.byte 0x1

Code starting with the faulting instruction
===========================================
   0:	c3                   	ret
   1:	0f 1f 40 d6          	nopl   -0x2a(%rax)
   5:	48 83 ec 20          	sub    $0x20,%rsp
   9:	8b 17                	mov    (%rdi),%edx
   b:	49 89 f8             	mov    %rdi,%r8
   e:	83 e2 fe             	and    $0xfffffffe,%edx
  11:	41 89 d2             	mov    %edx,%r10d
  14:	0f                   	.byte 0xf
  15:	01                   	.byte 0x1
[   27.053805][    C1] RSP: 0018:ffa0000000147e00 EFLAGS: 00000282
[   27.053807][    C1] RAX: 00000000000c3dd5 RBX: ff11000001bea380 RCX: ffffffffb24f0307
[   27.053809][    C1] RDX: ff11000001bea380 RSI: ffffffffb5238af6 RDI: ffffffffb4c8d8e0
[   27.053809][    C1] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[   27.053810][    C1] R10: 0000000000000001 R11: 0000000000000001 R12: 1ff4000000028fc3
[   27.053811][    C1] R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000000
[   27.053813][    C1]  ? cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   27.053815][    C1]  default_idle (./arch/x86/include/asm/paravirt.h:62 arch/x86/kernel/process.c:768)
[   27.053816][    C1]  default_idle_call (kernel/sched/idle.c:122)
[   27.053818][    C1]  cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   27.053820][    C1]  ? arch_cpu_idle_exit+0x40/0x40
[   27.053821][    C1]  ? mark_tsc_async_resets (arch/x86/kernel/tsc_sync.c:49)
[   27.053823][    C1]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.053825][    C1]  do_idle (kernel/sched/idle.c:355)
[   27.053826][    C1]  cpu_startup_entry (kernel/sched/idle.c:454)
[   27.053828][    C1]  start_secondary (arch/x86/kernel/smpboot.c:312)
[   27.053829][    C1]  ? set_cpu_sibling_map (arch/x86/kernel/smpboot.c:733 (discriminator 4))
[   27.053831][    C1]  common_startup_64 (arch/x86/kernel/head_64.S:418)
| [   30.359356][  T716] softirqs last disabled at (0): 0x0
| [   30.359357][  T716] Preemption disabled at:
| [   30.359358][  T716] 0x0
| [   30.359366][  T716] Tainted: [W]=WARN
[   30.359367][  T716] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   30.359369][  T716] Call Trace:
[   30.359370][  T716]  <TASK>
[   30.359371][  T716]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   30.359377][  T716]  __might_resched.cold (kernel/sched/core.c:9234)
[   30.359382][  T716]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   30.359385][  T716]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   30.359389][  T716]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   30.359393][  T716]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   30.359395][  T716]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   30.359399][  T716]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   30.359401][  T716]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   30.359403][  T716]  put_chars (drivers/char/virtio_console.c:1176)
[   30.359405][  T716]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   30.359406][  T716]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   30.359410][  T716]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   30.359413][  T716]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   30.359416][  T716]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   30.359417][  T716]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   30.359419][  T716]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   30.359421][  T716]  console_emit_next_record (kernel/printk/printk.c:3183)
[   30.359424][  T716]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   30.359426][  T716]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   30.359427][  T716]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   30.359429][  T716]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   30.359430][  T716]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   30.359432][  T716]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   30.359434][  T716]  console_flush_one_record (kernel/printk/printk.c:3268)
[   30.359436][  T716]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   30.359439][  T716]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   30.359440][  T716]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   30.359442][  T716]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   30.359443][  T716]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   30.359445][  T716]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   30.359446][  T716]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   30.359448][  T716]  ? __rcu_read_lock (kernel/rcu/tree_plugin.h:391 (discriminator 6) kernel/rcu/tree_plugin.h:414 (discriminator 6))
[   30.359450][  T716]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   30.359452][  T716]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   30.359454][  T716]  vprintk_emit (kernel/printk/printk.c:2479)
[   30.359456][  T716]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   30.359458][  T716]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   30.359459][  T716]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   30.359462][  T716]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:78)
[   30.359463][  T716]  _printk (kernel/printk/printk.c:2504)
[   30.359466][  T716]  ? snapshot_read.cold (user.c:?)
[   30.359468][  T716]  ? ipv6_mc_down (net/ipv6/mcast.c:1157 net/ipv6/mcast.c:2820)
[   30.359473][  T716] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   30.359486][  T716] br_stp_disable_port (net/bridge/br_stp_if.c:106) bridge
[   30.359494][  T716] br_device_event (net/bridge/br.c:111) bridge
[   30.359502][  T716]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   30.359506][  T716]  ? _sub_I_65535_1+0x4d0/0x4d0 stp
[   30.359508][  T716]  ? addrconf_notify (net/ipv6/addrconf.c:3812)
[   30.359511][  T716]  notifier_call_chain (kernel/notifier.c:85)
[   30.359514][  T716]  __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855)
[   30.359518][  T716]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   30.359519][  T716]  ? netif_change_name (net/core/dev.c:1517)
[   30.359521][  T716]  ? netif_set_allmulti (./include/net/netdev_lock.h:30 (discriminator 1))
[   30.359523][  T716]  ? __kernel_text_address (kernel/extable.c:79)
[   30.359525][  T716]  ? write_profile (profile.c:?)
[   30.359528][  T716]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   30.359531][  T716]  netif_change_flags (net/core/dev.c:9882)
[   30.359533][  T716]  do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1))
[   30.359536][  T716]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   30.359537][  T716]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   30.359538][  T716]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   30.359540][  T716]  ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[   30.359543][  T716]  ? kasan_save_stack (mm/kasan/common.c:58)
[   30.359546][  T716]  ? kasan_save_stack (mm/kasan/common.c:57)
[   30.359547][  T716]  ? kasan_save_track (mm/kasan/common.c:78)
[   30.359549][  T716]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   30.359551][  T716]  ? __kmalloc_cache_noprof (./include/linux/kasan.h:263 mm/slub.c:5563)
[   30.359552][  T716]  ? rtnl_newlink (./include/linux/slab.h:991 (discriminator 1) net/core/rtnetlink.c:4113 (discriminator 1))
[   30.359553][  T716]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   30.359554][  T716]  ? netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   30.359557][  T716]  ? netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   30.359558][  T716]  ? netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   30.359559][  T716]  ? ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   30.359562][  T716]  ? ___sys_sendmsg (net/socket.c:2767)
[   30.359563][  T716]  ? __sys_sendmsg (net/socket.c:2799)
[   30.359565][  T716]  ? do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   30.359567][  T716]  ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   30.359569][  T716]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   30.359571][  T716]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   30.359572][  T716]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   30.359574][  T716]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   30.359576][  T716]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   30.359579][  T716]  ? __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)
[   30.359580][  T716]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   30.359582][  T716]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   30.359583][  T716]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   30.359585][  T716]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   30.359587][  T716]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   30.359589][  T716]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   30.359591][  T716]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   30.359592][  T716]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   30.359593][  T716]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   30.359595][  T716]  ? is_bpf_text_address (./include/linux/rcupdate.h:850 kernel/bpf/core.c:749)
[   30.359598][  T716]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   30.359600][  T716]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   30.359601][  T716]  ? __kernel_text_address (kernel/extable.c:79)
[   30.359603][  T716]  ? write_profile (profile.c:?)
[   30.359604][  T716]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   30.359605][  T716]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   30.359607][  T716]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   30.359608][  T716]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   30.359612][  T716]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   30.359613][  T716]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   30.359615][  T716]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   30.359617][  T716]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   30.359618][  T716]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   30.359619][  T716]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[   30.359621][  T716]  ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[   30.359623][  T716]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   30.359625][  T716]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   30.359626][  T716]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   30.359627][  T716]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   30.359629][  T716]  ? __netlink_lookup (./include/linux/rcupdate.h:850 ./include/linux/rhashtable.h:709 net/netlink/af_netlink.c:499)
[   30.359631][  T716]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   30.359633][  T716]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   30.359635][  T716]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   30.359637][  T716]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   30.359639][  T716]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   30.359640][  T716]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   30.359642][  T716]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   30.359644][  T716]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   30.359646][  T716]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   30.359647][  T716]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   30.359649][  T716]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   30.359651][  T716]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   30.359653][  T716]  ? copy_msghdr_from_user (net/socket.c:2650)
[   30.359654][  T716]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   30.359656][  T716]  ? move_addr_to_kernel (net/socket.c:258)
[   30.359657][  T716]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[   30.359660][  T716]  ___sys_sendmsg (net/socket.c:2767)
[   30.359661][  T716]  ? copy_msghdr_from_user (net/socket.c:2619)
[   30.359666][  T716]  __sys_sendmsg (net/socket.c:2799)
[   30.359668][  T716]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   30.359671][  T716]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   30.359673][  T716]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   30.359674][  T716]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   30.359676][  T716]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   30.359678][  T716] RIP: 0033:0x7f2d014fc54e
[   30.359680][  T716] 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
[   30.359681][  T716] RSP: 002b:00007ffcd33eb3b0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   30.359685][  T716] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f2d014fc54e
[   30.359686][  T716] RDX: 0000000000000000 RSI: 00007ffcd33eb460 RDI: 0000000000000005
[   30.359687][  T716] RBP: 00007ffcd33eb3c0 R08: 0000000000000000 R09: 0000000000000000
[   30.359688][  T716] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91b635


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