======================================
| [    9.246019][  T186] softirqs last disabled at (29167): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [    9.246021][  T186] Preemption disabled at:
| [    9.246022][  T186] 0x0
| [    9.246031][  T186] Tainted: [W]=WARN
[    9.246032][  T186] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.246034][  T186] Call Trace:
[    9.246035][  T186]  <TASK>
[    9.246037][  T186]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[    9.246044][  T186]  __might_resched.cold (kernel/sched/core.c:9234)
[    9.246048][  T186]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[    9.246052][  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)
[    9.246058][  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))
[    9.246060][  T186]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[    9.246066][  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)
[    9.246069][  T186]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[    9.246072][  T186]  put_chars (drivers/char/virtio_console.c:1176)
[    9.246075][  T186]  ? __send_to_port (drivers/char/virtio_console.c:654)
[    9.246076][  T186]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[    9.246081][  T186]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[    9.246086][  T186]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[    9.246092][  T186]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[    9.246094][  T186]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.246097][  T186]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[    9.246101][  T186]  console_emit_next_record (kernel/printk/printk.c:3183)
[    9.246105][  T186]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[    9.246107][  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))
[    9.246110][  T186]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.246112][  T186]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[    9.246116][  T186]  console_flush_one_record (kernel/printk/printk.c:3268)
[    9.246120][  T186]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[    9.246122][  T186]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[    9.246127][  T186]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[    9.246130][  T186]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[    9.246132][  T186]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.246134][  T186]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[    9.246138][  T186]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[    9.246140][  T186]  ? vprintk_emit (kernel/printk/printk.c:2478)
[    9.246143][  T186]  vprintk_emit (kernel/printk/printk.c:2479)
[    9.246147][  T186]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[    9.246150][  T186]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[    9.246154][  T186]  _printk (kernel/printk/printk.c:2504)
[    9.246158][  T186]  ? snapshot_read.cold (user.c:?)
[    9.246161][  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)
[    9.246163][  T186]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[    9.246167][  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)
[    9.246170][  T186]  do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4))
[    9.246174][  T186]  ? exit_notify (kernel/exit.c:780)
[    9.246176][  T186]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[    9.246179][  T186]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.246183][  T186]  do_group_exit (kernel/exit.c:1151)
[    9.246186][  T186]  __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160)
[    9.246187][  T186]  x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232)
[    9.246190][  T186]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[    9.246193][  T186]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[    9.246196][  T186]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.246198][  T186] RIP: 0033:0x7f8e89b051b8
[    9.246200][  T186] Code: Unable to access opcode bytes at 0x7f8e89b0518e.

Code starting with the faulting instruction
===========================================
[    9.246202][  T186] RSP: 002b:00007ffdcc18a5b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[    9.246204][  T186] RAX: ffffffffffffffda RBX: 00007f8e89c35f88 RCX: 00007f8e89b051b8
[    9.246206][  T186] RDX: 00007f8e8984ffc8 RSI: fffffffffffffeb8 RDI: 0000000000000000
[    9.246207][  T186] RBP: 00007ffdcc18a610 R08: 0000000000000000 R09: 0000000000008010
[    9.246208][  T186] R10: 00007ffdcc18a3d0 R11: 0000000000000246 R12: 0000000000000001
[    9.246208][  T186] R13: 0000000000000000 R14: 00007f8e89c34680 R15: 00007f8e89c35fa0
| [   10.999545][  T252] softirqs last disabled at (26032): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   10.999548][  T252] Preemption disabled at:
| [   10.999548][  T252] vprintk_emit (kernel/printk/printk.c:2471)
| [   10.999558][  T252] Tainted: [W]=WARN
[   10.999559][  T252] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.999560][  T252] Call Trace:
[   10.999562][  T252]  <TASK>
[   10.999564][  T252]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   10.999570][  T252]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   10.999572][  T252]  __might_resched.cold (kernel/sched/core.c:9234)
[   10.999577][  T252]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   10.999581][  T252]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   10.999587][  T252]  __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))
[   10.999589][  T252]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.999595][  T252]  ? 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)
[   10.999597][  T252]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.999601][  T252]  put_chars (drivers/char/virtio_console.c:1176)
[   10.999603][  T252]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   10.999608][  T252]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   10.999611][  T252]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   10.999614][  T252]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   10.999616][  T252]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.999618][  T252]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.999622][  T252]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   10.999624][  T252]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   10.999627][  T252]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.999631][  T252]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.999636][  T252]  console_emit_next_record (kernel/printk/printk.c:3183)
[   10.999639][  T252]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   10.999641][  T252]  ? 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))
[   10.999644][  T252]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.999647][  T252]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.999651][  T252]  console_flush_one_record (kernel/printk/printk.c:3268)
[   10.999655][  T252]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   10.999657][  T252]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.999662][  T252]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   10.999665][  T252]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   10.999667][  T252]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.999669][  T252]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   10.999673][  T252]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   10.999674][  T252]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   10.999678][  T252]  vprintk_emit (kernel/printk/printk.c:2479)
[   10.999682][  T252]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   10.999684][  T252]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   10.999686][  T252]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   10.999690][  T252]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   10.999694][  T252]  _printk (kernel/printk/printk.c:2504)
[   10.999698][  T252]  ? snapshot_read.cold (user.c:?)
[   10.999701][  T252]  ? br_multicast_flood (??:?) bridge
[   10.999714][  T252]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   10.999715][  T252]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   10.999719][  T252]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   10.999724][  T252] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   10.999734][  T252] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   10.999742][  T252] new_nbp (net/bridge/br_if.c:449) bridge
[   10.999752][  T252] br_add_if (net/bridge/br_if.c:592) bridge
[   10.999759][  T252]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   10.999763][  T252]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   10.999766][  T252]  ? __kernel_text_address (kernel/extable.c:79)
[   10.999770][  T252]  do_set_master (net/core/rtnetlink.c:3071)
[   10.999775][  T252]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   10.999778][  T252]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   10.999781][  T252]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   10.999782][  T252]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   10.999785][  T252]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   10.999788][  T252]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   10.999791][  T252]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   10.999793][  T252]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   10.999795][  T252]  ? kasan_save_stack (mm/kasan/common.c:58)
[   10.999799][  T252]  ? kasan_save_stack (mm/kasan/common.c:57)
[   10.999800][  T252]  ? kasan_save_track (mm/kasan/common.c:78)
[   10.999803][  T252]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.999805][  T252]  ? netlink_seq_next (net/netlink/af_netlink.c:2685)
[   10.999808][  T252]  ? ___sys_sendmsg (net/socket.c:2757)
[   10.999812][  T252]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   10.999814][  T252]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   10.999817][  T252]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.999819][  T252]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.999821][  T252]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.999822][  T252]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.999825][  T252]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   10.999829][  T252]  ? __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)
[   10.999830][  T252]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   10.999832][  T252]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   10.999836][  T252]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   10.999837][  T252]  ? nla_get_range_signed (lib/nlattr.c:270)
[   10.999842][  T252]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   10.999848][  T252]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   10.999860][  T252]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   10.999862][  T252]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.999867][  T252]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   10.999869][  T252]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   10.999871][  T252]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   10.999873][  T252]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   10.999876][  T252]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   10.999878][  T252]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   10.999881][  T252]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   10.999883][  T252]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.999887][  T252]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   10.999889][  T252]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   10.999892][  T252]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   10.999894][  T252]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   10.999897][  T252]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   10.999903][  T252]  ? 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))
[   10.999905][  T252]  ? 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))
[   10.999909][  T252]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   10.999913][  T252]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   10.999915][  T252]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.999920][  T252]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   10.999923][  T252]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   10.999927][  T252]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   10.999933][  T252]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   10.999935][  T252]  ? copy_msghdr_from_user (net/socket.c:2650)
[   10.999937][  T252]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   10.999939][  T252]  ? move_addr_to_kernel (net/socket.c:258)
[   10.999947][  T252]  ___sys_sendmsg (net/socket.c:2767)
[   10.999949][  T252]  ? copy_msghdr_from_user (net/socket.c:2619)
[   10.999965][  T252]  __sys_sendmsg (net/socket.c:2799)
[   10.999968][  T252]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   10.999974][  T252]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.999978][  T252]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   10.999980][  T252]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   10.999984][  T252]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.999986][  T252] RIP: 0033:0x7f2033ca054e
[   10.999989][  T252] 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
[   10.999991][  T252] RSP: 002b:00007ffce49f7830 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   10.999994][  T252] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f2033ca054e
[   10.999995][  T252] RDX: 0000000000000000 RSI: 00007ffce49f78e0 RDI: 0000000000000005
[   10.999996][  T252] RBP: 00007ffce49f7840 R08: 0000000000000000 R09: 0000000000000000
[   10.999997][  T252] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90e47f
[   10.999998][  T252] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffce49f7fa0
| [   26.491795][    C3] softirqs last disabled at (700313): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   26.491796][    C3] Preemption disabled at:
| [   26.491797][    C3] 0x0
| [   26.491807][    C3] Tainted: [W]=WARN
[   26.491808][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   26.491810][    C3] Call Trace:
[   26.491812][    C3]  <IRQ>
[   26.491813][    C3]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   26.491819][    C3]  __might_resched.cold (kernel/sched/core.c:9234)
[   26.491823][    C3]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   26.491827][    C3]  ? __asan_memcpy (mm/kasan/shadow.c:106 (discriminator 1))
[   26.491830][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.491833][    C3]  __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))
[   26.491836][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   26.491840][    C3]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   26.491843][    C3]  ? 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)
[   26.491845][    C3]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   26.491847][    C3]  put_chars (drivers/char/virtio_console.c:1176)
[   26.491849][    C3]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   26.491851][    C3]  ? console_prepend_replay (kernel/printk/printk.c:3005)
[   26.491854][    C3]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   26.491857][    C3]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   26.491859][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.491860][    C3]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   26.491863][    C3]  console_emit_next_record (kernel/printk/printk.c:3183)
[   26.491865][    C3]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   26.491867][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.491869][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.491870][    C3]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   26.491872][    C3]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   26.491874][    C3]  console_flush_one_record (kernel/printk/printk.c:3268)
[   26.491876][    C3]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   26.491879][    C3]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   26.491881][    C3]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   26.491883][    C3]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   26.491884][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.491886][    C3]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   26.491887][    C3]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   26.491889][    C3]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   26.491891][    C3]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   26.491901][    C3]  vprintk_emit (kernel/printk/printk.c:2479)
[   26.491903][    C3]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   26.491905][    C3]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   26.491917][    C3]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   26.491918][    C3]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   26.491925][    C3]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   26.491931][    C3]  ? is_module_text_address (./include/linux/rcupdate.h:882 ./include/linux/rcupdate.h:1216 kernel/module/main.c:3934)
[   26.491935][    C3]  _printk (kernel/printk/printk.c:2504)
[   26.491938][    C3]  ? snapshot_read.cold (user.c:?)
[   26.491939][    C3]  ? arch_stack_walk (arch/x86/kernel/stacktrace.c:25)
[   26.491944][    C3]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   26.491946][    C3]  ? nbcon_cpu_emergency_enter (./include/linux/instrumented.h:112 ./include/linux/atomic/atomic-instrumented.h:435 kernel/printk/nbcon.c:1723)
[   26.491948][    C3]  print_irq_inversion_bug.part.0 (kernel/locking/lockdep.c:4097 (discriminator 1))
[   26.491950][    C3]  mark_lock_irq (kernel/locking/lockdep.c:4095 kernel/locking/lockdep.c:4174 kernel/locking/lockdep.c:4310)
[   26.491953][    C3]  mark_lock (kernel/locking/lockdep.c:4769)
[   26.491955][    C3]  mark_usage (kernel/locking/lockdep.c:4658)
[   26.491957][    C3]  __lock_acquire (kernel/locking/lockdep.c:5208)
[   26.491959][    C3]  lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   26.491961][    C3]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   26.491967][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.491969][    C3]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   26.491971][    C3]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   26.491977][    C3]  _raw_spin_lock (./include/linux/spinlock_api_smp.h:190 (discriminator 1) kernel/locking/spinlock.c:173 (discriminator 1))
[   26.491979][    C3]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   26.491985][    C3] br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   26.491991][    C3]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   26.491997][    C3]  call_timer_fn (kernel/time/timer.c:1748)
[   26.492000][    C3]  ? detach_if_pending (./include/linux/list.h:1159)
[   26.492002][    C3]  ? debug_object_active_state (lib/debugobjects.c:1122)
[   26.492005][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   26.492007][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   26.492009][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.492011][    C3]  __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2374)
[   26.492013][    C3]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   26.492020][    C3]  ? __bpf_trace_itimer_expire (./include/trace/events/timer.h:407)
[   26.492022][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   26.492024][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   26.492027][    C3]  run_timer_softirq (kernel/time/timer.c:2386 kernel/time/timer.c:2395 kernel/time/timer.c:2403)
[   26.492029][    C3]  ? __run_timers (./include/trace/events/timer.h:138 (discriminator 19))
[   26.492031][    C3]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   26.492033][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.492035][    C3]  handle_softirqs (kernel/softirq.c:645)
[   26.492037][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   26.492038][    C3]  ? _local_bh_enable (kernel/softirq.c:428 (discriminator 1))
[   26.492040][    C3]  __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
[   26.492042][    C3]  irq_exit_rcu (kernel/softirq.c:784)
[   26.492043][    C3]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1062 (discriminator 37) arch/x86/kernel/apic/apic.c:1062 (discriminator 37))
[   26.492047][    C3]  </IRQ>
[   26.492047][    C3]  <TASK>
[   26.492048][    C3]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   26.492050][    C3]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:674)
[   26.492052][    C3] RIP: 0010:pv_native_safe_halt (./arch/x86/include/asm/irqflags.h:48 arch/x86/kernel/paravirt.c:63)
[   26.492054][    C3] Code: 48 8b 3d 94 f2 f5 01 e8 1f 00 00 00 48 2b 05 58 b3 95 00 c3 0f 1f 80 00 00 00 00 f3 0f 1e fa eb 07 0f 00 2d 13 a6 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 f2 f5 01 	mov    0x1f5f294(%rip),%rdi        # 0x1f5f29b
   7:	e8 1f 00 00 00       	call   0x2b
   c:	48 2b 05 58 b3 95 00 	sub    0x95b358(%rip),%rax        # 0x95b36b
  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 a6 11 00 	verw   0x11a613(%rip)        # 0x11a63b
  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
[   26.492056][    C3] RSP: 0018:ffa0000000167e00 EFLAGS: 00000282
[   26.492059][    C3] RAX: 00000000000aaf97 RBX: ff11000001c88040 RCX: ffffffffa98f0307
[   26.492061][    C3] RDX: ff11000001c88040 RSI: ffffffffac638b1c RDI: ffffffffac08d8e0
[   26.492061][    C3] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[   26.492062][    C3] R10: 0000000000000003 R11: 0000000000000001 R12: 1ff400000002cfc3
[   26.492063][    C3] R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000000
[   26.492065][    C3]  ? cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   26.492068][    C3]  default_idle (./arch/x86/include/asm/paravirt.h:62 arch/x86/kernel/process.c:768)
[   26.492070][    C3]  default_idle_call (kernel/sched/idle.c:122)
[   26.492072][    C3]  cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   26.492073][    C3]  ? arch_cpu_idle_exit+0x40/0x40
[   26.492075][    C3]  ? mark_tsc_async_resets (arch/x86/kernel/tsc_sync.c:49)
[   26.492078][    C3]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   26.492079][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.492081][    C3]  do_idle (kernel/sched/idle.c:355)
[   26.492082][    C3]  cpu_startup_entry (kernel/sched/idle.c:454)
[   26.492084][    C3]  start_secondary (arch/x86/kernel/smpboot.c:312)
[   26.492086][    C3]  ? set_cpu_sibling_map (arch/x86/kernel/smpboot.c:733 (discriminator 4))
[   26.492088][    C3]  common_startup_64 (arch/x86/kernel/head_64.S:418)
| [   26.547986][    C3]
| [   26.548053][    C3]
| [   26.548053][    C3] stack backtrace:
| [   26.548267][    C3] Tainted: [W]=WARN
[   26.548268][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   26.548269][    C3] Call Trace:
[   26.548270][    C3]  <IRQ>
[   26.548271][    C3]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   26.548274][    C3]  print_irq_inversion_bug.part.0.cold (kernel/locking/lockdep.c:4141)
[   26.548277][    C3]  mark_lock_irq (kernel/locking/lockdep.c:4095 kernel/locking/lockdep.c:4174 kernel/locking/lockdep.c:4310)
[   26.548280][    C3]  mark_lock (kernel/locking/lockdep.c:4769)
[   26.548282][    C3]  mark_usage (kernel/locking/lockdep.c:4658)
[   26.548283][    C3]  __lock_acquire (kernel/locking/lockdep.c:5208)
[   26.548285][    C3]  lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   26.548287][    C3]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   26.548294][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.548297][    C3]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   26.548299][    C3]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   26.548305][    C3]  _raw_spin_lock (./include/linux/spinlock_api_smp.h:190 (discriminator 1) kernel/locking/spinlock.c:173 (discriminator 1))
[   26.548307][    C3]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   26.548313][    C3] br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   26.548319][    C3]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   26.548326][    C3]  call_timer_fn (kernel/time/timer.c:1748)
[   26.548328][    C3]  ? detach_if_pending (./include/linux/list.h:1159)
[   26.548330][    C3]  ? debug_object_active_state (lib/debugobjects.c:1122)
[   26.548333][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   26.548334][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   26.548336][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.548338][    C3]  __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2374)
[   26.548340][    C3]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   26.548347][    C3]  ? __bpf_trace_itimer_expire (./include/trace/events/timer.h:407)
[   26.548349][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   26.548352][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   26.548354][    C3]  run_timer_softirq (kernel/time/timer.c:2386 kernel/time/timer.c:2395 kernel/time/timer.c:2403)
[   26.548356][    C3]  ? __run_timers (./include/trace/events/timer.h:138 (discriminator 19))
[   26.548358][    C3]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   26.548360][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.548362][    C3]  handle_softirqs (kernel/softirq.c:645)
[   26.548364][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   26.548365][    C3]  ? _local_bh_enable (kernel/softirq.c:428 (discriminator 1))
[   26.548367][    C3]  __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
[   26.548369][    C3]  irq_exit_rcu (kernel/softirq.c:784)
[   26.548370][    C3]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1062 (discriminator 37) arch/x86/kernel/apic/apic.c:1062 (discriminator 37))
[   26.548372][    C3]  </IRQ>
[   26.548372][    C3]  <TASK>
[   26.548373][    C3]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   26.548375][    C3]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:674)
[   26.548376][    C3] RIP: 0010:pv_native_safe_halt (./arch/x86/include/asm/irqflags.h:48 arch/x86/kernel/paravirt.c:63)
[   26.548378][    C3] Code: 48 8b 3d 94 f2 f5 01 e8 1f 00 00 00 48 2b 05 58 b3 95 00 c3 0f 1f 80 00 00 00 00 f3 0f 1e fa eb 07 0f 00 2d 13 a6 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 f2 f5 01 	mov    0x1f5f294(%rip),%rdi        # 0x1f5f29b
   7:	e8 1f 00 00 00       	call   0x2b
   c:	48 2b 05 58 b3 95 00 	sub    0x95b358(%rip),%rax        # 0x95b36b
  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 a6 11 00 	verw   0x11a613(%rip)        # 0x11a63b
  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
[   26.548379][    C3] RSP: 0018:ffa0000000167e00 EFLAGS: 00000282
[   26.548381][    C3] RAX: 00000000000aaf97 RBX: ff11000001c88040 RCX: ffffffffa98f0307
[   26.548382][    C3] RDX: ff11000001c88040 RSI: ffffffffac638b1c RDI: ffffffffac08d8e0
[   26.548383][    C3] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[   26.548384][    C3] R10: 0000000000000003 R11: 0000000000000001 R12: 1ff400000002cfc3
[   26.548384][    C3] R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000000
[   26.548386][    C3]  ? cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   26.548388][    C3]  default_idle (./arch/x86/include/asm/paravirt.h:62 arch/x86/kernel/process.c:768)
[   26.548390][    C3]  default_idle_call (kernel/sched/idle.c:122)
[   26.548391][    C3]  cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   26.548393][    C3]  ? arch_cpu_idle_exit+0x40/0x40
[   26.548395][    C3]  ? mark_tsc_async_resets (arch/x86/kernel/tsc_sync.c:49)
[   26.548396][    C3]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   26.548397][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.548399][    C3]  do_idle (kernel/sched/idle.c:355)
[   26.548401][    C3]  cpu_startup_entry (kernel/sched/idle.c:454)
[   26.548402][    C3]  start_secondary (arch/x86/kernel/smpboot.c:312)
[   26.548404][    C3]  ? set_cpu_sibling_map (arch/x86/kernel/smpboot.c:733 (discriminator 4))
[   26.548406][    C3]  common_startup_64 (arch/x86/kernel/head_64.S:418)
| [   37.583093][  T436] softirqs last disabled at (0): 0x0
| [   37.583094][  T436] Preemption disabled at:
| [   37.583095][  T436] 0x0
| [   37.583103][  T436] Tainted: [W]=WARN
[   37.583104][  T436] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   37.583106][  T436] Call Trace:
[   37.583107][  T436]  <TASK>
[   37.583109][  T436]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   37.583114][  T436]  __might_resched.cold (kernel/sched/core.c:9234)
[   37.583118][  T436]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   37.583122][  T436]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.583126][  T436]  __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))
[   37.583129][  T436]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   37.583132][  T436]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   37.583136][  T436]  ? 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)
[   37.583138][  T436]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   37.583139][  T436]  put_chars (drivers/char/virtio_console.c:1176)
[   37.583141][  T436]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   37.583143][  T436]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   37.583146][  T436]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   37.583150][  T436]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   37.583151][  T436]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   37.583153][  T436]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.583155][  T436]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   37.583157][  T436]  console_emit_next_record (kernel/printk/printk.c:3183)
[   37.583159][  T436]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   37.583161][  T436]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.583163][  T436]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.583164][  T436]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.583166][  T436]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   37.583168][  T436]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   37.583170][  T436]  console_flush_one_record (kernel/printk/printk.c:3268)
[   37.583172][  T436]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   37.583174][  T436]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   37.583176][  T436]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   37.583178][  T436]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   37.583179][  T436]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.583181][  T436]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   37.583182][  T436]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   37.583184][  T436]  ? __rcu_read_lock (kernel/rcu/tree_plugin.h:391 (discriminator 6) kernel/rcu/tree_plugin.h:414 (discriminator 6))
[   37.583186][  T436]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   37.583188][  T436]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   37.583190][  T436]  vprintk_emit (kernel/printk/printk.c:2479)
[   37.583192][  T436]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   37.583194][  T436]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.583196][  T436]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   37.583198][  T436]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:78)
[   37.583200][  T436]  _printk (kernel/printk/printk.c:2504)
[   37.583203][  T436]  ? snapshot_read.cold (user.c:?)
[   37.583205][  T436]  ? ipv6_mc_down (net/ipv6/mcast.c:1137 net/ipv6/mcast.c:2792)
[   37.583210][  T436] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   37.583222][  T436] br_stp_disable_port (net/bridge/br_stp_if.c:106) bridge
[   37.583229][  T436] br_device_event (net/bridge/br.c:111) bridge
[   37.583238][  T436]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   37.583241][  T436]  ? _sub_I_65535_1+0x4d0/0x4d0 stp
[   37.583243][  T436]  ? addrconf_notify (net/ipv6/addrconf.c:3812)
[   37.583246][  T436]  notifier_call_chain (kernel/notifier.c:85)
[   37.583250][  T436]  __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855)
[   37.583253][  T436]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   37.583255][  T436]  ? netif_change_name (net/core/dev.c:1517)
[   37.583257][  T436]  ? netif_set_allmulti (./include/net/netdev_lock.h:30 (discriminator 1))
[   37.583259][  T436]  ? __kernel_text_address (kernel/extable.c:79)
[   37.583261][  T436]  ? write_profile (profile.c:?)
[   37.583264][  T436]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   37.583267][  T436]  netif_change_flags (net/core/dev.c:9882)
[   37.583269][  T436]  do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1))
[   37.583272][  T436]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   37.583273][  T436]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   37.583274][  T436]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.583276][  T436]  ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[   37.583280][  T436]  ? kasan_save_stack (mm/kasan/common.c:58)
[   37.583283][  T436]  ? kasan_save_stack (mm/kasan/common.c:57)
[   37.583284][  T436]  ? kasan_save_track (mm/kasan/common.c:78)
[   37.583286][  T436]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   37.583287][  T436]  ? __kmalloc_cache_noprof (./include/linux/kasan.h:263 mm/slub.c:5563)
[   37.583289][  T436]  ? rtnl_newlink (./include/linux/slab.h:991 (discriminator 1) net/core/rtnetlink.c:4113 (discriminator 1))
[   37.583290][  T436]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   37.583291][  T436]  ? netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   37.583293][  T436]  ? netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   37.583295][  T436]  ? netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   37.583296][  T436]  ? ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   37.583298][  T436]  ? ___sys_sendmsg (net/socket.c:2767)
[   37.583300][  T436]  ? __sys_sendmsg (net/socket.c:2799)
[   37.583301][  T436]  ? do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   37.583303][  T436]  ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   37.583306][  T436]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.583307][  T436]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   37.583309][  T436]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.583310][  T436]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.583312][  T436]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   37.583315][  T436]  ? __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)
[   37.583317][  T436]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   37.583318][  T436]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   37.583320][  T436]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   37.583322][  T436]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   37.583324][  T436]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   37.583326][  T436]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.583328][  T436]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   37.583329][  T436]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   37.583330][  T436]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.583332][  T436]  ? is_bpf_text_address (./include/linux/rcupdate.h:850 kernel/bpf/core.c:749)
[   37.583336][  T436]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   37.583338][  T436]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   37.583339][  T436]  ? __kernel_text_address (kernel/extable.c:79)
[   37.583340][  T436]  ? write_profile (profile.c:?)
[   37.583341][  T436]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   37.583343][  T436]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.583344][  T436]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.583346][  T436]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   37.583349][  T436]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   37.583351][  T436]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.583353][  T436]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   37.583354][  T436]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   37.583356][  T436]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   37.583357][  T436]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[   37.583358][  T436]  ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[   37.583361][  T436]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   37.583362][  T436]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   37.583363][  T436]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   37.583365][  T436]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   37.583366][  T436]  ? __netlink_lookup (./include/linux/rcupdate.h:850 ./include/linux/rhashtable.h:709 net/netlink/af_netlink.c:499)
[   37.583368][  T436]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.583370][  T436]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   37.583372][  T436]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   37.583374][  T436]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   37.583376][  T436]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.583377][  T436]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.583379][  T436]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   37.583381][  T436]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   37.583383][  T436]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   37.583384][  T436]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.583386][  T436]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   37.583388][  T436]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   37.583389][  T436]  ? copy_msghdr_from_user (net/socket.c:2650)
[   37.583391][  T436]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   37.583393][  T436]  ? move_addr_to_kernel (net/socket.c:258)
[   37.583394][  T436]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[   37.583396][  T436]  ___sys_sendmsg (net/socket.c:2767)
[   37.583398][  T436]  ? copy_msghdr_from_user (net/socket.c:2619)
[   37.583403][  T436]  __sys_sendmsg (net/socket.c:2799)
[   37.583405][  T436]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   37.583407][  T436]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.583409][  T436]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   37.583411][  T436]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   37.583413][  T436]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   37.583414][  T436] RIP: 0033:0x7fbabeb0354e
[   37.583416][  T436] 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
[   37.583418][  T436] RSP: 002b:00007ffd74230a60 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   37.583422][  T436] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fbabeb0354e
[   37.583423][  T436] RDX: 0000000000000000 RSI: 00007ffd74230b10 RDI: 0000000000000005
[   37.583424][  T436] RBP: 00007ffd74230a70 R08: 0000000000000000 R09: 0000000000000000
[   37.583425][  T436] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90e49a


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