======================================
| [    9.745297][  T196] softirqs last disabled at (31235): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [    9.745300][  T196] Preemption disabled at:
| [    9.745300][  T196] 0x0
| [    9.745313][  T196] Tainted: [W]=WARN
[    9.745313][  T196] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.745315][  T196] Call Trace:
[    9.745317][  T196]  <TASK>
[    9.745318][  T196]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[    9.745324][  T196]  __might_resched.cold (kernel/sched/core.c:9234)
[    9.745329][  T196]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[    9.745333][  T196]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[    9.745338][  T196]  __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))
[    9.745341][  T196]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[    9.745347][  T196]  ? 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)
[    9.745349][  T196]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[    9.745352][  T196]  put_chars (drivers/char/virtio_console.c:1176)
[    9.745355][  T196]  ? __send_to_port (drivers/char/virtio_console.c:654)
[    9.745357][  T196]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[    9.745362][  T196]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[    9.745367][  T196]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[    9.745373][  T196]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[    9.745375][  T196]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.745377][  T196]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[    9.745381][  T196]  console_emit_next_record (kernel/printk/printk.c:3183)
[    9.745385][  T196]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[    9.745387][  T196]  ? 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))
[    9.745390][  T196]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.745392][  T196]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[    9.745396][  T196]  console_flush_one_record (kernel/printk/printk.c:3268)
[    9.745400][  T196]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[    9.745402][  T196]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[    9.745407][  T196]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[    9.745410][  T196]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[    9.745412][  T196]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.745414][  T196]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[    9.745418][  T196]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[    9.745420][  T196]  ? vprintk_emit (kernel/printk/printk.c:2478)
[    9.745423][  T196]  vprintk_emit (kernel/printk/printk.c:2479)
[    9.745427][  T196]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[    9.745430][  T196]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[    9.745434][  T196]  _printk (kernel/printk/printk.c:2504)
[    9.745438][  T196]  ? snapshot_read.cold (user.c:?)
[    9.745440][  T196]  ? 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)
[    9.745443][  T196]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[    9.745447][  T196]  ? 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)
[    9.745449][  T196]  do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4))
[    9.745453][  T196]  ? exit_notify (kernel/exit.c:780)
[    9.745455][  T196]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[    9.745458][  T196]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.745462][  T196]  do_group_exit (kernel/exit.c:1151)
[    9.745465][  T196]  __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160)
[    9.745467][  T196]  x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232)
[    9.745469][  T196]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[    9.745472][  T196]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[    9.745475][  T196]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.745477][  T196] RIP: 0033:0x7fe4403861b8
[    9.745479][  T196] Code: Unable to access opcode bytes at 0x7fe44038618e.

Code starting with the faulting instruction
===========================================
[    9.745481][  T196] RSP: 002b:00007ffd0051f148 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[    9.745483][  T196] RAX: ffffffffffffffda RBX: 00007fe4404b6f88 RCX: 00007fe4403861b8
[    9.745484][  T196] RDX: 00007fe4400d0fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000
[    9.745485][  T196] RBP: 00007ffd0051f1a0 R08: 0000000000000000 R09: 0000000000008010
[    9.745486][  T196] R10: 00007ffd0051ef60 R11: 0000000000000246 R12: 0000000000000001
[    9.745487][  T196] R13: 0000000000000000 R14: 00007fe4404b5680 R15: 00007fe4404b6fa0
| [   11.188243][  T251] softirqs last disabled at (13108): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   11.188246][  T251] Preemption disabled at:
| [   11.188246][  T251] vprintk_emit (kernel/printk/printk.c:2471)
| [   11.188255][  T251] Tainted: [W]=WARN
[   11.188256][  T251] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.188258][  T251] Call Trace:
[   11.188260][  T251]  <TASK>
[   11.188261][  T251]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   11.188267][  T251]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   11.188269][  T251]  __might_resched.cold (kernel/sched/core.c:9234)
[   11.188274][  T251]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   11.188278][  T251]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   11.188283][  T251]  __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))
[   11.188285][  T251]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.188291][  T251]  ? 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)
[   11.188294][  T251]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.188297][  T251]  put_chars (drivers/char/virtio_console.c:1176)
[   11.188300][  T251]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   11.188308][  T251]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   11.188312][  T251]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   11.188315][  T251]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   11.188317][  T251]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.188318][  T251]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.188322][  T251]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   11.188324][  T251]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   11.188327][  T251]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.188331][  T251]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.188335][  T251]  console_emit_next_record (kernel/printk/printk.c:3183)
[   11.188338][  T251]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   11.188340][  T251]  ? 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))
[   11.188343][  T251]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.188345][  T251]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.188349][  T251]  console_flush_one_record (kernel/printk/printk.c:3268)
[   11.188353][  T251]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   11.188355][  T251]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.188360][  T251]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   11.188363][  T251]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   11.188365][  T251]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.188367][  T251]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   11.188370][  T251]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   11.188372][  T251]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   11.188375][  T251]  vprintk_emit (kernel/printk/printk.c:2479)
[   11.188379][  T251]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   11.188382][  T251]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.188383][  T251]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   11.188388][  T251]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   11.188391][  T251]  _printk (kernel/printk/printk.c:2504)
[   11.188394][  T251]  ? snapshot_read.cold (user.c:?)
[   11.188398][  T251]  ? br_multicast_flood (??:?) bridge
[   11.188411][  T251]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   11.188412][  T251]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   11.188413][  T251]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   11.188418][  T251] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   11.188428][  T251] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   11.188436][  T251] new_nbp (net/bridge/br_if.c:449) bridge
[   11.188445][  T251] br_add_if (net/bridge/br_if.c:592) bridge
[   11.188452][  T251]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   11.188456][  T251]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   11.188459][  T251]  ? __kernel_text_address (kernel/extable.c:79)
[   11.188463][  T251]  do_set_master (net/core/rtnetlink.c:3071)
[   11.188468][  T251]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   11.188471][  T251]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   11.188474][  T251]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   11.188475][  T251]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   11.188478][  T251]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   11.188481][  T251]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   11.188484][  T251]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   11.188485][  T251]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   11.188488][  T251]  ? kasan_save_stack (mm/kasan/common.c:58)
[   11.188492][  T251]  ? kasan_save_stack (mm/kasan/common.c:57)
[   11.188493][  T251]  ? kasan_save_track (mm/kasan/common.c:78)
[   11.188496][  T251]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.188498][  T251]  ? netlink_seq_next (net/netlink/af_netlink.c:2685)
[   11.188501][  T251]  ? ___sys_sendmsg (net/socket.c:2757)
[   11.188505][  T251]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.188507][  T251]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   11.188510][  T251]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.188512][  T251]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.188514][  T251]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.188516][  T251]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.188518][  T251]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   11.188522][  T251]  ? __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)
[   11.188523][  T251]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   11.188525][  T251]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   11.188528][  T251]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   11.188530][  T251]  ? nla_get_range_signed (lib/nlattr.c:270)
[   11.188535][  T251]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   11.188540][  T251]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   11.188545][  T251]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.188547][  T251]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.188551][  T251]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.188553][  T251]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   11.188555][  T251]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.188557][  T251]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.188561][  T251]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.188563][  T251]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   11.188566][  T251]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.188567][  T251]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.188571][  T251]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.188573][  T251]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   11.188576][  T251]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   11.188578][  T251]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.188581][  T251]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   11.188587][  T251]  ? 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))
[   11.188588][  T251]  ? 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))
[   11.188593][  T251]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   11.188596][  T251]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   11.188599][  T251]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.188603][  T251]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   11.188607][  T251]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   11.188610][  T251]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   11.188616][  T251]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   11.188618][  T251]  ? copy_msghdr_from_user (net/socket.c:2650)
[   11.188620][  T251]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   11.188622][  T251]  ? move_addr_to_kernel (net/socket.c:258)
[   11.188629][  T251]  ___sys_sendmsg (net/socket.c:2767)
[   11.188632][  T251]  ? copy_msghdr_from_user (net/socket.c:2619)
[   11.188647][  T251]  __sys_sendmsg (net/socket.c:2799)
[   11.188649][  T251]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   11.188656][  T251]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.188659][  T251]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   11.188661][  T251]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   11.188664][  T251]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.188667][  T251] RIP: 0033:0x7f1e91c2254e
[   11.188670][  T251] 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
[   11.188672][  T251] RSP: 002b:00007ffd67a530c0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   11.188675][  T251] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f1e91c2254e
[   11.188676][  T251] RDX: 0000000000000000 RSI: 00007ffd67a53170 RDI: 0000000000000005
[   11.188677][  T251] RBP: 00007ffd67a530d0 R08: 0000000000000000 R09: 0000000000000000
[   11.188678][  T251] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9160e2
[   11.188679][  T251] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffd67a53830
| [   26.502406][    C3] softirqs last disabled at (643417): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   26.502408][    C3] Preemption disabled at:
| [   26.502408][    C3] preempt_schedule_thunk (arch/x86/entry/thunk.S:12)
| [   26.502421][    C3] Tainted: [W]=WARN
[   26.502422][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   26.502424][    C3] Call Trace:
[   26.502425][    C3]  <IRQ>
[   26.502427][    C3]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   26.502432][    C3]  ? preempt_schedule_thunk (arch/x86/entry/thunk.S:12)
[   26.502433][    C3]  __might_resched.cold (kernel/sched/core.c:9234)
[   26.502437][    C3]  ? unwind_next_frame (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/linux/rcupdate.h:1216 (discriminator 2) arch/x86/kernel/unwind_orc.c:495 (discriminator 2))
[   26.502439][    C3]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   26.502443][    C3]  ? __asan_memcpy (mm/kasan/shadow.c:106 (discriminator 1))
[   26.502445][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.502449][    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))
[   26.502452][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   26.502455][    C3]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   26.502458][    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)
[   26.502460][    C3]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   26.502462][    C3]  put_chars (drivers/char/virtio_console.c:1176)
[   26.502464][    C3]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   26.502465][    C3]  ? console_prepend_replay (kernel/printk/printk.c:3005)
[   26.502469][    C3]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   26.502472][    C3]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   26.502473][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.502475][    C3]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   26.502477][    C3]  console_emit_next_record (kernel/printk/printk.c:3183)
[   26.502479][    C3]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   26.502481][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.502483][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.502484][    C3]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   26.502486][    C3]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   26.502488][    C3]  console_flush_one_record (kernel/printk/printk.c:3268)
[   26.502490][    C3]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   26.502493][    C3]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   26.502494][    C3]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   26.502496][    C3]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   26.502497][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.502499][    C3]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   26.502500][    C3]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   26.502502][    C3]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   26.502504][    C3]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   26.502506][    C3]  vprintk_emit (kernel/printk/printk.c:2479)
[   26.502508][    C3]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   26.502510][    C3]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   26.502522][    C3]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   26.502523][    C3]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   26.502529][    C3]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   26.502535][    C3]  ? is_module_text_address (./include/linux/rcupdate.h:882 ./include/linux/rcupdate.h:1216 kernel/module/main.c:3934)
[   26.502539][    C3]  _printk (kernel/printk/printk.c:2504)
[   26.502542][    C3]  ? snapshot_read.cold (user.c:?)
[   26.502543][    C3]  ? arch_stack_walk (arch/x86/kernel/stacktrace.c:25)
[   26.502547][    C3]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   26.502549][    C3]  ? nbcon_cpu_emergency_enter (./include/linux/instrumented.h:112 ./include/linux/atomic/atomic-instrumented.h:435 kernel/printk/nbcon.c:1723)
[   26.502551][    C3]  print_irq_inversion_bug.part.0 (kernel/locking/lockdep.c:4097 (discriminator 1))
[   26.502553][    C3]  mark_lock_irq (kernel/locking/lockdep.c:4095 kernel/locking/lockdep.c:4174 kernel/locking/lockdep.c:4310)
[   26.502556][    C3]  mark_lock (kernel/locking/lockdep.c:4769)
[   26.502558][    C3]  mark_usage (kernel/locking/lockdep.c:4658)
[   26.502559][    C3]  __lock_acquire (kernel/locking/lockdep.c:5208)
[   26.502561][    C3]  lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   26.502563][    C3]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   26.502569][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.502571][    C3]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   26.502573][    C3]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   26.502579][    C3]  _raw_spin_lock (./include/linux/spinlock_api_smp.h:190 (discriminator 1) kernel/locking/spinlock.c:173 (discriminator 1))
[   26.502580][    C3]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   26.502586][    C3] br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   26.502592][    C3]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   26.502598][    C3]  call_timer_fn (kernel/time/timer.c:1748)
[   26.502601][    C3]  ? detach_if_pending (./include/linux/list.h:1159)
[   26.502603][    C3]  ? debug_object_active_state (lib/debugobjects.c:1122)
[   26.502607][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   26.502609][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   26.502610][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.502612][    C3]  __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2374)
[   26.502614][    C3]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   26.502620][    C3]  ? __bpf_trace_itimer_expire (./include/trace/events/timer.h:407)
[   26.502622][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   26.502625][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   26.502627][    C3]  run_timer_softirq (kernel/time/timer.c:2386 kernel/time/timer.c:2395 kernel/time/timer.c:2403)
[   26.502629][    C3]  ? __run_timers (./include/trace/events/timer.h:138 (discriminator 19))
[   26.502630][    C3]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   26.502632][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.502634][    C3]  handle_softirqs (kernel/softirq.c:645)
[   26.502636][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   26.502637][    C3]  ? _local_bh_enable (kernel/softirq.c:428 (discriminator 1))
[   26.502639][    C3]  __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
[   26.502641][    C3]  irq_exit_rcu (kernel/softirq.c:784)
[   26.502642][    C3]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1062 (discriminator 37) arch/x86/kernel/apic/apic.c:1062 (discriminator 37))
[   26.502645][    C3]  </IRQ>
[   26.502645][    C3]  <TASK>
[   26.502646][    C3]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   26.502648][    C3]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:674)
[   26.502650][    C3] RIP: 0010:pv_native_safe_halt (./arch/x86/include/asm/irqflags.h:48 arch/x86/kernel/paravirt.c:63)
[   26.502653][    C3] Code: 48 8b 3d 94 e2 f5 01 e8 1f 00 00 00 48 2b 05 58 a3 95 00 c3 0f 1f 80 00 00 00 00 f3 0f 1e fa eb 07 0f 00 2d 13 96 11 00 fb f4 <c3> 0f 1f 40 d6 48 83 ec 20 8b 17 49 89 f8 83 e2 fe 41 89 d2 0f 01
All code
========
   0:	48 8b 3d 94 e2 f5 01 	mov    0x1f5e294(%rip),%rdi        # 0x1f5e29b
   7:	e8 1f 00 00 00       	call   0x2b
   c:	48 2b 05 58 a3 95 00 	sub    0x95a358(%rip),%rax        # 0x95a36b
  13:	c3                   	ret
  14:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  1b:	f3 0f 1e fa          	endbr64
  1f:	eb 07                	jmp    0x28
  21:	0f 00 2d 13 96 11 00 	verw   0x119613(%rip)        # 0x11963b
  28:	fb                   	sti
  29:	f4                   	hlt
  2a:*	c3                   	ret		<-- trapping instruction
  2b:	0f 1f 40 d6          	nopl   -0x2a(%rax)
  2f:	48 83 ec 20          	sub    $0x20,%rsp
  33:	8b 17                	mov    (%rdi),%edx
  35:	49 89 f8             	mov    %rdi,%r8
  38:	83 e2 fe             	and    $0xfffffffe,%edx
  3b:	41 89 d2             	mov    %edx,%r10d
  3e:	0f                   	.byte 0xf
  3f:	01                   	.byte 0x1

Code starting with the faulting instruction
===========================================
   0:	c3                   	ret
   1:	0f 1f 40 d6          	nopl   -0x2a(%rax)
   5:	48 83 ec 20          	sub    $0x20,%rsp
   9:	8b 17                	mov    (%rdi),%edx
   b:	49 89 f8             	mov    %rdi,%r8
   e:	83 e2 fe             	and    $0xfffffffe,%edx
  11:	41 89 d2             	mov    %edx,%r10d
  14:	0f                   	.byte 0xf
  15:	01                   	.byte 0x1
[   26.502654][    C3] RSP: 0018:ffa0000000167e00 EFLAGS: 00000282
[   26.502657][    C3] RAX: 000000000009d157 RBX: ff11000001c88040 RCX: ffffffff8a8f0307
[   26.502659][    C3] RDX: ff11000001c88040 RSI: ffffffff8d638b01 RDI: ffffffff8d08d8e0
[   26.502659][    C3] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[   26.502660][    C3] R10: 0000000000000003 R11: 0000000000000001 R12: 1ff400000002cfc3
[   26.502661][    C3] R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000000
[   26.502663][    C3]  ? cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   26.502666][    C3]  default_idle (./arch/x86/include/asm/paravirt.h:62 arch/x86/kernel/process.c:768)
[   26.502668][    C3]  default_idle_call (kernel/sched/idle.c:122)
[   26.502669][    C3]  cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   26.502671][    C3]  ? arch_cpu_idle_exit+0x40/0x40
[   26.502672][    C3]  ? mark_tsc_async_resets (arch/x86/kernel/tsc_sync.c:49)
[   26.502674][    C3]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   26.502675][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.502677][    C3]  do_idle (kernel/sched/idle.c:355)
[   26.502679][    C3]  cpu_startup_entry (kernel/sched/idle.c:454)
[   26.502680][    C3]  start_secondary (arch/x86/kernel/smpboot.c:312)
[   26.502682][    C3]  ? set_cpu_sibling_map (arch/x86/kernel/smpboot.c:733 (discriminator 4))
[   26.502684][    C3]  common_startup_64 (arch/x86/kernel/head_64.S:418)
| [   26.562286][    C3]
| [   26.562355][    C3]
| [   26.562355][    C3] stack backtrace:
| [   26.562574][    C3] Tainted: [W]=WARN
[   26.562575][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   26.562576][    C3] Call Trace:
[   26.562578][    C3]  <IRQ>
[   26.562579][    C3]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   26.562584][    C3]  print_irq_inversion_bug.part.0.cold (kernel/locking/lockdep.c:4141)
[   26.562587][    C3]  mark_lock_irq (kernel/locking/lockdep.c:4095 kernel/locking/lockdep.c:4174 kernel/locking/lockdep.c:4310)
[   26.562590][    C3]  mark_lock (kernel/locking/lockdep.c:4769)
[   26.562592][    C3]  mark_usage (kernel/locking/lockdep.c:4658)
[   26.562593][    C3]  __lock_acquire (kernel/locking/lockdep.c:5208)
[   26.562596][    C3]  lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   26.562597][    C3]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   26.562605][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.562608][    C3]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   26.562610][    C3]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   26.562616][    C3]  _raw_spin_lock (./include/linux/spinlock_api_smp.h:190 (discriminator 1) kernel/locking/spinlock.c:173 (discriminator 1))
[   26.562617][    C3]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   26.562623][    C3] br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   26.562630][    C3]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   26.562636][    C3]  call_timer_fn (kernel/time/timer.c:1748)
[   26.562638][    C3]  ? detach_if_pending (./include/linux/list.h:1159)
[   26.562639][    C3]  ? debug_object_active_state (lib/debugobjects.c:1122)
[   26.562644][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   26.562645][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   26.562647][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.562649][    C3]  __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2374)
[   26.562651][    C3]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   26.562657][    C3]  ? __bpf_trace_itimer_expire (./include/trace/events/timer.h:407)
[   26.562659][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   26.562662][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   26.562664][    C3]  run_timer_softirq (kernel/time/timer.c:2386 kernel/time/timer.c:2395 kernel/time/timer.c:2403)
[   26.562666][    C3]  ? __run_timers (./include/trace/events/timer.h:138 (discriminator 19))
[   26.562668][    C3]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   26.562670][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.562672][    C3]  handle_softirqs (kernel/softirq.c:645)
[   26.562674][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   26.562675][    C3]  ? _local_bh_enable (kernel/softirq.c:428 (discriminator 1))
[   26.562677][    C3]  __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
[   26.562679][    C3]  irq_exit_rcu (kernel/softirq.c:784)
[   26.562680][    C3]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1062 (discriminator 37) arch/x86/kernel/apic/apic.c:1062 (discriminator 37))
[   26.562682][    C3]  </IRQ>
[   26.562682][    C3]  <TASK>
[   26.562683][    C3]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   26.562684][    C3]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:674)
[   26.562686][    C3] RIP: 0010:pv_native_safe_halt (./arch/x86/include/asm/irqflags.h:48 arch/x86/kernel/paravirt.c:63)
[   26.562689][    C3] Code: 48 8b 3d 94 e2 f5 01 e8 1f 00 00 00 48 2b 05 58 a3 95 00 c3 0f 1f 80 00 00 00 00 f3 0f 1e fa eb 07 0f 00 2d 13 96 11 00 fb f4 <c3> 0f 1f 40 d6 48 83 ec 20 8b 17 49 89 f8 83 e2 fe 41 89 d2 0f 01
All code
========
   0:	48 8b 3d 94 e2 f5 01 	mov    0x1f5e294(%rip),%rdi        # 0x1f5e29b
   7:	e8 1f 00 00 00       	call   0x2b
   c:	48 2b 05 58 a3 95 00 	sub    0x95a358(%rip),%rax        # 0x95a36b
  13:	c3                   	ret
  14:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  1b:	f3 0f 1e fa          	endbr64
  1f:	eb 07                	jmp    0x28
  21:	0f 00 2d 13 96 11 00 	verw   0x119613(%rip)        # 0x11963b
  28:	fb                   	sti
  29:	f4                   	hlt
  2a:*	c3                   	ret		<-- trapping instruction
  2b:	0f 1f 40 d6          	nopl   -0x2a(%rax)
  2f:	48 83 ec 20          	sub    $0x20,%rsp
  33:	8b 17                	mov    (%rdi),%edx
  35:	49 89 f8             	mov    %rdi,%r8
  38:	83 e2 fe             	and    $0xfffffffe,%edx
  3b:	41 89 d2             	mov    %edx,%r10d
  3e:	0f                   	.byte 0xf
  3f:	01                   	.byte 0x1

Code starting with the faulting instruction
===========================================
   0:	c3                   	ret
   1:	0f 1f 40 d6          	nopl   -0x2a(%rax)
   5:	48 83 ec 20          	sub    $0x20,%rsp
   9:	8b 17                	mov    (%rdi),%edx
   b:	49 89 f8             	mov    %rdi,%r8
   e:	83 e2 fe             	and    $0xfffffffe,%edx
  11:	41 89 d2             	mov    %edx,%r10d
  14:	0f                   	.byte 0xf
  15:	01                   	.byte 0x1
[   26.562690][    C3] RSP: 0018:ffa0000000167e00 EFLAGS: 00000282
[   26.562693][    C3] RAX: 000000000009d157 RBX: ff11000001c88040 RCX: ffffffff8a8f0307
[   26.562694][    C3] RDX: ff11000001c88040 RSI: ffffffff8d638b01 RDI: ffffffff8d08d8e0
[   26.562695][    C3] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[   26.562696][    C3] R10: 0000000000000003 R11: 0000000000000001 R12: 1ff400000002cfc3
[   26.562697][    C3] R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000000
[   26.562699][    C3]  ? cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   26.562701][    C3]  default_idle (./arch/x86/include/asm/paravirt.h:62 arch/x86/kernel/process.c:768)
[   26.562703][    C3]  default_idle_call (kernel/sched/idle.c:122)
[   26.562704][    C3]  cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   26.562706][    C3]  ? arch_cpu_idle_exit+0x40/0x40
[   26.562707][    C3]  ? mark_tsc_async_resets (arch/x86/kernel/tsc_sync.c:49)
[   26.562709][    C3]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   26.562710][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.562712][    C3]  do_idle (kernel/sched/idle.c:355)
[   26.562713][    C3]  cpu_startup_entry (kernel/sched/idle.c:454)
[   26.562715][    C3]  start_secondary (arch/x86/kernel/smpboot.c:312)
[   26.562716][    C3]  ? set_cpu_sibling_map (arch/x86/kernel/smpboot.c:733 (discriminator 4))
[   26.562718][    C3]  common_startup_64 (arch/x86/kernel/head_64.S:418)
| [   38.047569][  T350] softirqs last disabled at (0): 0x0
| [   38.047571][  T350] Preemption disabled at:
| [   38.047572][  T350] 0x0
| [   38.047580][  T350] Tainted: [W]=WARN
[   38.047581][  T350] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   38.047583][  T350] Call Trace:
[   38.047585][  T350]  <TASK>
[   38.047586][  T350]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   38.047592][  T350]  __might_resched.cold (kernel/sched/core.c:9234)
[   38.047596][  T350]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   38.047599][  T350]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   38.047604][  T350]  __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))
[   38.047607][  T350]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   38.047610][  T350]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   38.047614][  T350]  ? 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)
[   38.047616][  T350]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   38.047618][  T350]  put_chars (drivers/char/virtio_console.c:1176)
[   38.047620][  T350]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   38.047621][  T350]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   38.047625][  T350]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   38.047628][  T350]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   38.047631][  T350]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   38.047632][  T350]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   38.047634][  T350]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   38.047636][  T350]  console_emit_next_record (kernel/printk/printk.c:3183)
[   38.047638][  T350]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   38.047640][  T350]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   38.047642][  T350]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   38.047643][  T350]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   38.047645][  T350]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   38.047647][  T350]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   38.047649][  T350]  console_flush_one_record (kernel/printk/printk.c:3268)
[   38.047651][  T350]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   38.047653][  T350]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   38.047655][  T350]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   38.047656][  T350]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   38.047658][  T350]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   38.047660][  T350]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   38.047661][  T350]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   38.047662][  T350]  ? __rcu_read_lock (kernel/rcu/tree_plugin.h:391 (discriminator 6) kernel/rcu/tree_plugin.h:414 (discriminator 6))
[   38.047664][  T350]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   38.047666][  T350]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   38.047668][  T350]  vprintk_emit (kernel/printk/printk.c:2479)
[   38.047671][  T350]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   38.047672][  T350]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   38.047674][  T350]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   38.047677][  T350]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:78)
[   38.047678][  T350]  _printk (kernel/printk/printk.c:2504)
[   38.047681][  T350]  ? snapshot_read.cold (user.c:?)
[   38.047683][  T350]  ? ipv6_mc_down (net/ipv6/mcast.c:1137 net/ipv6/mcast.c:2792)
[   38.047688][  T350] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   38.047702][  T350] br_stp_disable_port (net/bridge/br_stp_if.c:106) bridge
[   38.047710][  T350] br_device_event (net/bridge/br.c:111) bridge
[   38.047718][  T350]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   38.047721][  T350]  ? _sub_I_65535_1+0x4d0/0x4d0 stp
[   38.047724][  T350]  ? addrconf_notify (net/ipv6/addrconf.c:3812)
[   38.047727][  T350]  notifier_call_chain (kernel/notifier.c:85)
[   38.047730][  T350]  __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855)
[   38.047734][  T350]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   38.047735][  T350]  ? netif_change_name (net/core/dev.c:1517)
[   38.047737][  T350]  ? netif_set_allmulti (./include/net/netdev_lock.h:30 (discriminator 1))
[   38.047739][  T350]  ? __kernel_text_address (kernel/extable.c:79)
[   38.047741][  T350]  ? write_profile (profile.c:?)
[   38.047744][  T350]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   38.047746][  T350]  netif_change_flags (net/core/dev.c:9882)
[   38.047749][  T350]  do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1))
[   38.047751][  T350]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   38.047753][  T350]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   38.047754][  T350]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   38.047756][  T350]  ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[   38.047759][  T350]  ? kasan_save_stack (mm/kasan/common.c:58)
[   38.047762][  T350]  ? kasan_save_stack (mm/kasan/common.c:57)
[   38.047764][  T350]  ? kasan_save_track (mm/kasan/common.c:78)
[   38.047765][  T350]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   38.047767][  T350]  ? __kmalloc_cache_noprof (./include/linux/kasan.h:263 mm/slub.c:5563)
[   38.047768][  T350]  ? rtnl_newlink (./include/linux/slab.h:991 (discriminator 1) net/core/rtnetlink.c:4113 (discriminator 1))
[   38.047769][  T350]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   38.047771][  T350]  ? netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   38.047773][  T350]  ? netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   38.047775][  T350]  ? netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   38.047776][  T350]  ? ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   38.047779][  T350]  ? ___sys_sendmsg (net/socket.c:2767)
[   38.047780][  T350]  ? __sys_sendmsg (net/socket.c:2799)
[   38.047782][  T350]  ? do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   38.047784][  T350]  ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   38.047786][  T350]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   38.047788][  T350]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   38.047789][  T350]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   38.047791][  T350]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   38.047793][  T350]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   38.047796][  T350]  ? __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)
[   38.047797][  T350]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   38.047798][  T350]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   38.047800][  T350]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   38.047802][  T350]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   38.047810][  T350]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   38.047812][  T350]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   38.047814][  T350]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   38.047815][  T350]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   38.047817][  T350]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   38.047819][  T350]  ? is_bpf_text_address (./include/linux/rcupdate.h:850 kernel/bpf/core.c:749)
[   38.047822][  T350]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   38.047824][  T350]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   38.047825][  T350]  ? __kernel_text_address (kernel/extable.c:79)
[   38.047826][  T350]  ? write_profile (profile.c:?)
[   38.047827][  T350]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   38.047828][  T350]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   38.047830][  T350]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   38.047832][  T350]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   38.047835][  T350]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   38.047837][  T350]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   38.047839][  T350]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   38.047840][  T350]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   38.047842][  T350]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   38.047843][  T350]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[   38.047844][  T350]  ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[   38.047847][  T350]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   38.047848][  T350]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   38.047849][  T350]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   38.047851][  T350]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   38.047852][  T350]  ? __netlink_lookup (./include/linux/rcupdate.h:850 ./include/linux/rhashtable.h:709 net/netlink/af_netlink.c:499)
[   38.047855][  T350]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   38.047856][  T350]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   38.047858][  T350]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   38.047860][  T350]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   38.047862][  T350]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   38.047863][  T350]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   38.047865][  T350]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   38.047867][  T350]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   38.047869][  T350]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   38.047871][  T350]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   38.047872][  T350]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   38.047874][  T350]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   38.047876][  T350]  ? copy_msghdr_from_user (net/socket.c:2650)
[   38.047878][  T350]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   38.047879][  T350]  ? move_addr_to_kernel (net/socket.c:258)
[   38.047880][  T350]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[   38.047883][  T350]  ___sys_sendmsg (net/socket.c:2767)
[   38.047885][  T350]  ? copy_msghdr_from_user (net/socket.c:2619)
[   38.047889][  T350]  __sys_sendmsg (net/socket.c:2799)
[   38.047891][  T350]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   38.047894][  T350]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   38.047896][  T350]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   38.047897][  T350]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   38.047900][  T350]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   38.047901][  T350] RIP: 0033:0x7f872d42254e
[   38.047903][  T350] 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
[   38.047905][  T350] RSP: 002b:00007fffe960b610 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   38.047909][  T350] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f872d42254e
[   38.047910][  T350] RDX: 0000000000000000 RSI: 00007fffe960b6c0 RDI: 0000000000000005
[   38.047911][  T350] RBP: 00007fffe960b620 R08: 0000000000000000 R09: 0000000000000000
[   38.047912][  T350] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9160fd


Finger prints:
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
__irq_exit_rcu:preempt_schedule_thunk:dump_stack_lvl:__kmalloc_noprof:put_chars
__kmalloc_noprof:put_chars:hvc_console_print:console_emit_next_record:console_flush_one_record
__alloc_skb:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars