======================================
| [   12.004428][  T186] softirqs last disabled at (46023): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   12.004432][  T186] Preemption disabled at:
| [   12.004433][  T186] 0x0
| [   12.004447][  T186] Tainted: [W]=WARN
[   12.004448][  T186] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.004450][  T186] Call Trace:
[   12.004453][  T186]  <TASK>
[   12.004455][  T186]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   12.004463][  T186]  __might_resched.cold (kernel/sched/core.c:9234)
[   12.004469][  T186]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   12.004475][  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)
[   12.004483][  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))
[   12.004486][  T186]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.004495][  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)
[   12.004499][  T186]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.004504][  T186]  put_chars (drivers/char/virtio_console.c:1176)
[   12.004508][  T186]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   12.004510][  T186]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   12.004517][  T186]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   12.004526][  T186]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   12.004537][  T186]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   12.004540][  T186]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.004544][  T186]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.004551][  T186]  console_emit_next_record (kernel/printk/printk.c:3183)
[   12.004557][  T186]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   12.004560][  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))
[   12.004565][  T186]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.004569][  T186]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.004576][  T186]  console_flush_one_record (kernel/printk/printk.c:3268)
[   12.004583][  T186]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   12.004585][  T186]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.004595][  T186]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   12.004599][  T186]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   12.004602][  T186]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.004605][  T186]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   12.004612][  T186]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   12.004615][  T186]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   12.004620][  T186]  vprintk_emit (kernel/printk/printk.c:2479)
[   12.004626][  T186]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   12.004632][  T186]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.004639][  T186]  _printk (kernel/printk/printk.c:2504)
[   12.004643][  T186]  ? snapshot_read.cold (user.c:?)
[   12.004653][  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)
[   12.004657][  T186]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   12.004664][  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)
[   12.004668][  T186]  do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4))
[   12.004674][  T186]  ? exit_notify (kernel/exit.c:780)
[   12.004677][  T186]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   12.004681][  T186]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.004689][  T186]  do_group_exit (kernel/exit.c:1151)
[   12.004696][  T186]  __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160)
[   12.004700][  T186]  x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232)
[   12.004703][  T186]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   12.004708][  T186]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   12.004713][  T186]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.004717][  T186] RIP: 0033:0x7f84a12951b8
[   12.004720][  T186] Code: Unable to access opcode bytes at 0x7f84a129518e.

Code starting with the faulting instruction
===========================================
[   12.004722][  T186] RSP: 002b:00007ffe271b5308 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[   12.004725][  T186] RAX: ffffffffffffffda RBX: 00007f84a13c5f88 RCX: 00007f84a12951b8
[   12.004727][  T186] RDX: 00007f84a0fdffc8 RSI: fffffffffffffeb8 RDI: 0000000000000000
[   12.004729][  T186] RBP: 00007ffe271b5360 R08: 0000000000000000 R09: 0000000000008010
[   12.004731][  T186] R10: 00007ffe271b5120 R11: 0000000000000246 R12: 0000000000000001
[   12.004732][  T186] R13: 0000000000000000 R14: 00007f84a13c4680 R15: 00007f84a13c5fa0
| [   13.544056][  T261] softirqs last disabled at (13910): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   13.544059][  T261] Preemption disabled at:
| [   13.544059][  T261] vprintk_emit (kernel/printk/printk.c:2471)
| [   13.544069][  T261] Tainted: [W]=WARN
[   13.544070][  T261] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.544072][  T261] Call Trace:
[   13.544074][  T261]  <TASK>
[   13.544075][  T261]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   13.544081][  T261]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   13.544084][  T261]  __might_resched.cold (kernel/sched/core.c:9234)
[   13.544088][  T261]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   13.544092][  T261]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   13.544098][  T261]  __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))
[   13.544100][  T261]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   13.544106][  T261]  ? 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)
[   13.544108][  T261]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   13.544111][  T261]  put_chars (drivers/char/virtio_console.c:1176)
[   13.544114][  T261]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   13.544119][  T261]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   13.544122][  T261]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   13.544125][  T261]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   13.544127][  T261]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.544129][  T261]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.544133][  T261]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   13.544135][  T261]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   13.544138][  T261]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.544142][  T261]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   13.544146][  T261]  console_emit_next_record (kernel/printk/printk.c:3183)
[   13.544150][  T261]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   13.544152][  T261]  ? 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))
[   13.544155][  T261]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.544158][  T261]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   13.544162][  T261]  console_flush_one_record (kernel/printk/printk.c:3268)
[   13.544166][  T261]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   13.544168][  T261]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.544173][  T261]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   13.544176][  T261]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   13.544178][  T261]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.544180][  T261]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   13.544184][  T261]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   13.544186][  T261]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   13.544189][  T261]  vprintk_emit (kernel/printk/printk.c:2479)
[   13.544193][  T261]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   13.544196][  T261]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   13.544198][  T261]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   13.544202][  T261]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   13.544206][  T261]  _printk (kernel/printk/printk.c:2504)
[   13.544209][  T261]  ? snapshot_read.cold (user.c:?)
[   13.544213][  T261]  ? br_multicast_flood (??:?) bridge
[   13.544226][  T261]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   13.544228][  T261]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   13.544229][  T261]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   13.544234][  T261] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   13.544244][  T261] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   13.544252][  T261] new_nbp (net/bridge/br_if.c:449) bridge
[   13.544261][  T261] br_add_if (net/bridge/br_if.c:592) bridge
[   13.544268][  T261]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   13.544272][  T261]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   13.544275][  T261]  ? __kernel_text_address (kernel/extable.c:79)
[   13.544279][  T261]  do_set_master (net/core/rtnetlink.c:3071)
[   13.544284][  T261]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   13.544287][  T261]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   13.544291][  T261]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   13.544292][  T261]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   13.544295][  T261]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   13.544298][  T261]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   13.544301][  T261]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   13.544303][  T261]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   13.544306][  T261]  ? kasan_save_stack (mm/kasan/common.c:58)
[   13.544309][  T261]  ? kasan_save_stack (mm/kasan/common.c:57)
[   13.544310][  T261]  ? kasan_save_track (mm/kasan/common.c:78)
[   13.544313][  T261]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.544315][  T261]  ? netlink_seq_next (net/netlink/af_netlink.c:2685)
[   13.544318][  T261]  ? ___sys_sendmsg (net/socket.c:2757)
[   13.544323][  T261]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   13.544325][  T261]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   13.544328][  T261]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.544330][  T261]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   13.544331][  T261]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.544333][  T261]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.544336][  T261]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   13.544340][  T261]  ? __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)
[   13.544341][  T261]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   13.544343][  T261]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   13.544347][  T261]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   13.544348][  T261]  ? nla_get_range_signed (lib/nlattr.c:270)
[   13.544354][  T261]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   13.544359][  T261]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   13.544364][  T261]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   13.544366][  T261]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.544371][  T261]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   13.544373][  T261]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   13.544375][  T261]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   13.544377][  T261]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   13.544380][  T261]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   13.544382][  T261]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   13.544385][  T261]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   13.544387][  T261]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.544391][  T261]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   13.544393][  T261]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   13.544397][  T261]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   13.544398][  T261]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   13.544401][  T261]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   13.544408][  T261]  ? 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))
[   13.544409][  T261]  ? 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))
[   13.544413][  T261]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   13.544417][  T261]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   13.544420][  T261]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.544424][  T261]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   13.544428][  T261]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   13.544432][  T261]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   13.544437][  T261]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   13.544440][  T261]  ? copy_msghdr_from_user (net/socket.c:2650)
[   13.544442][  T261]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   13.544444][  T261]  ? move_addr_to_kernel (net/socket.c:258)
[   13.544451][  T261]  ___sys_sendmsg (net/socket.c:2767)
[   13.544454][  T261]  ? copy_msghdr_from_user (net/socket.c:2619)
[   13.544470][  T261]  __sys_sendmsg (net/socket.c:2799)
[   13.544473][  T261]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   13.544480][  T261]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.544484][  T261]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   13.544486][  T261]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   13.544489][  T261]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   13.544491][  T261] RIP: 0033:0x7f1c6f7a554e
[   13.544495][  T261] 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
[   13.544497][  T261] RSP: 002b:00007ffc94dac860 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   13.544499][  T261] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f1c6f7a554e
[   13.544500][  T261] RDX: 0000000000000000 RSI: 00007ffc94dac910 RDI: 0000000000000005
[   13.544501][  T261] RBP: 00007ffc94dac870 R08: 0000000000000000 R09: 0000000000000000
[   13.544502][  T261] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90e5a7
[   13.544503][  T261] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffc94dacfd0
| [   29.048783][    C2] softirqs last disabled at (1052329): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   29.048785][    C2] Preemption disabled at:
| [   29.048786][    C2] 0x0
| [   29.048796][    C2] Tainted: [W]=WARN
[   29.048797][    C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   29.048799][    C2] Call Trace:
[   29.048800][    C2]  <IRQ>
[   29.048802][    C2]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   29.048808][    C2]  __might_resched.cold (kernel/sched/core.c:9234)
[   29.048812][    C2]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   29.048815][    C2]  ? __asan_memcpy (mm/kasan/shadow.c:106 (discriminator 1))
[   29.048818][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.048822][    C2]  __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))
[   29.048825][    C2]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   29.048828][    C2]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   29.048831][    C2]  ? 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)
[   29.048833][    C2]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   29.048835][    C2]  put_chars (drivers/char/virtio_console.c:1176)
[   29.048837][    C2]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   29.048839][    C2]  ? console_prepend_replay (kernel/printk/printk.c:3005)
[   29.048842][    C2]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   29.048845][    C2]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   29.048847][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.048849][    C2]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   29.048851][    C2]  console_emit_next_record (kernel/printk/printk.c:3183)
[   29.048854][    C2]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   29.048856][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.048857][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.048859][    C2]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   29.048861][    C2]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   29.048863][    C2]  console_flush_one_record (kernel/printk/printk.c:3268)
[   29.048865][    C2]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   29.048868][    C2]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   29.048870][    C2]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   29.048871][    C2]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   29.048873][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.048875][    C2]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   29.048876][    C2]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   29.048878][    C2]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   29.048880][    C2]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   29.048883][    C2]  vprintk_emit (kernel/printk/printk.c:2479)
[   29.048885][    C2]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   29.048887][    C2]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   29.048899][    C2]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   29.048901][    C2]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   29.048907][    C2]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   29.048913][    C2]  ? is_module_text_address (./include/linux/rcupdate.h:882 ./include/linux/rcupdate.h:1216 kernel/module/main.c:3934)
[   29.048917][    C2]  _printk (kernel/printk/printk.c:2504)
[   29.048920][    C2]  ? snapshot_read.cold (user.c:?)
[   29.048922][    C2]  ? arch_stack_walk (arch/x86/kernel/stacktrace.c:25)
[   29.048926][    C2]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   29.048929][    C2]  ? nbcon_cpu_emergency_enter (./include/linux/instrumented.h:112 ./include/linux/atomic/atomic-instrumented.h:435 kernel/printk/nbcon.c:1723)
[   29.048930][    C2]  print_irq_inversion_bug.part.0 (kernel/locking/lockdep.c:4097 (discriminator 1))
[   29.048933][    C2]  mark_lock_irq (kernel/locking/lockdep.c:4095 kernel/locking/lockdep.c:4174 kernel/locking/lockdep.c:4310)
[   29.048936][    C2]  mark_lock (kernel/locking/lockdep.c:4769)
[   29.048938][    C2]  mark_usage (kernel/locking/lockdep.c:4658)
[   29.048940][    C2]  __lock_acquire (kernel/locking/lockdep.c:5208)
[   29.048942][    C2]  lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   29.048944][    C2]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   29.048950][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.048952][    C2]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   29.048954][    C2]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   29.048960][    C2]  _raw_spin_lock (./include/linux/spinlock_api_smp.h:190 (discriminator 1) kernel/locking/spinlock.c:173 (discriminator 1))
[   29.048962][    C2]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   29.048968][    C2] br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   29.048975][    C2]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   29.048981][    C2]  call_timer_fn (kernel/time/timer.c:1748)
[   29.048984][    C2]  ? detach_if_pending (./include/linux/list.h:1159)
[   29.048986][    C2]  ? debug_object_active_state (lib/debugobjects.c:1122)
[   29.048990][    C2]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   29.048991][    C2]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   29.048993][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.048996][    C2]  __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2374)
[   29.048997][    C2]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   29.049004][    C2]  ? __bpf_trace_itimer_expire (./include/trace/events/timer.h:407)
[   29.049006][    C2]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   29.049009][    C2]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   29.049011][    C2]  run_timer_softirq (kernel/time/timer.c:2386 kernel/time/timer.c:2395 kernel/time/timer.c:2403)
[   29.049014][    C2]  ? __run_timers (./include/trace/events/timer.h:138 (discriminator 19))
[   29.049015][    C2]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   29.049018][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.049019][    C2]  handle_softirqs (kernel/softirq.c:645)
[   29.049021][    C2]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   29.049023][    C2]  ? _local_bh_enable (kernel/softirq.c:428 (discriminator 1))
[   29.049025][    C2]  __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
[   29.049027][    C2]  irq_exit_rcu (kernel/softirq.c:784)
[   29.049028][    C2]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1062 (discriminator 37) arch/x86/kernel/apic/apic.c:1062 (discriminator 37))
[   29.049031][    C2]  </IRQ>
[   29.049032][    C2]  <TASK>
[   29.049032][    C2]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:674)
[   29.049035][    C2] RIP: 0010:pv_native_safe_halt (./arch/x86/include/asm/irqflags.h:48 arch/x86/kernel/paravirt.c:63)
[   29.049037][    C2] 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
[   29.049039][    C2] RSP: 0018:ffa0000000157e00 EFLAGS: 00000282
[   29.049042][    C2] RAX: 0000000000100ea7 RBX: ff11000001bec6c0 RCX: ffffffff8d6f0307
[   29.049044][    C2] RDX: ff11000001bec6c0 RSI: ffffffff90438b1c RDI: ffffffff8fe8d8e0
[   29.049045][    C2] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[   29.049046][    C2] R10: 0000000000000002 R11: 0000000000000001 R12: 1ff400000002afc3
[   29.049046][    C2] R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000000
[   29.049048][    C2]  ? cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   29.049051][    C2]  default_idle (./arch/x86/include/asm/paravirt.h:62 arch/x86/kernel/process.c:768)
[   29.049053][    C2]  default_idle_call (kernel/sched/idle.c:122)
[   29.049055][    C2]  cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   29.049057][    C2]  ? arch_cpu_idle_exit+0x40/0x40
[   29.049059][    C2]  ? mark_tsc_async_resets (arch/x86/kernel/tsc_sync.c:49)
[   29.049061][    C2]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   29.049063][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.049065][    C2]  do_idle (kernel/sched/idle.c:355)
[   29.049066][    C2]  cpu_startup_entry (kernel/sched/idle.c:454)
[   29.049068][    C2]  start_secondary (arch/x86/kernel/smpboot.c:312)
[   29.049070][    C2]  ? set_cpu_sibling_map (arch/x86/kernel/smpboot.c:733 (discriminator 4))
[   29.049072][    C2]  common_startup_64 (arch/x86/kernel/head_64.S:418)
| [   29.115429][    C2]
| [   29.115549][    C2]
| [   29.115549][    C2] stack backtrace:
| [   29.115770][    C2] Tainted: [W]=WARN
[   29.115771][    C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   29.115773][    C2] Call Trace:
[   29.115774][    C2]  <IRQ>
[   29.115776][    C2]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   29.115780][    C2]  print_irq_inversion_bug.part.0.cold (kernel/locking/lockdep.c:4141)
[   29.115783][    C2]  mark_lock_irq (kernel/locking/lockdep.c:4095 kernel/locking/lockdep.c:4174 kernel/locking/lockdep.c:4310)
[   29.115786][    C2]  mark_lock (kernel/locking/lockdep.c:4769)
[   29.115787][    C2]  mark_usage (kernel/locking/lockdep.c:4658)
[   29.115789][    C2]  __lock_acquire (kernel/locking/lockdep.c:5208)
[   29.115791][    C2]  lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   29.115793][    C2]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   29.115801][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.115804][    C2]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   29.115806][    C2]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   29.115813][    C2]  _raw_spin_lock (./include/linux/spinlock_api_smp.h:190 (discriminator 1) kernel/locking/spinlock.c:173 (discriminator 1))
[   29.115814][    C2]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   29.115821][    C2] br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   29.115829][    C2]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   29.115835][    C2]  call_timer_fn (kernel/time/timer.c:1748)
[   29.115837][    C2]  ? detach_if_pending (./include/linux/list.h:1159)
[   29.115839][    C2]  ? debug_object_active_state (lib/debugobjects.c:1122)
[   29.115844][    C2]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   29.115845][    C2]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   29.115847][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.115850][    C2]  __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2374)
[   29.115851][    C2]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   29.115858][    C2]  ? __bpf_trace_itimer_expire (./include/trace/events/timer.h:407)
[   29.115860][    C2]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   29.115863][    C2]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   29.115866][    C2]  run_timer_softirq (kernel/time/timer.c:2386 kernel/time/timer.c:2395 kernel/time/timer.c:2403)
[   29.115867][    C2]  ? __run_timers (./include/trace/events/timer.h:138 (discriminator 19))
[   29.115869][    C2]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   29.115872][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.115873][    C2]  handle_softirqs (kernel/softirq.c:645)
[   29.115875][    C2]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   29.115877][    C2]  ? _local_bh_enable (kernel/softirq.c:428 (discriminator 1))
[   29.115879][    C2]  __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
[   29.115880][    C2]  irq_exit_rcu (kernel/softirq.c:784)
[   29.115882][    C2]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1062 (discriminator 37) arch/x86/kernel/apic/apic.c:1062 (discriminator 37))
[   29.115884][    C2]  </IRQ>
[   29.115884][    C2]  <TASK>
[   29.115885][    C2]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:674)
[   29.115887][    C2] RIP: 0010:pv_native_safe_halt (./arch/x86/include/asm/irqflags.h:48 arch/x86/kernel/paravirt.c:63)
[   29.115889][    C2] 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
[   29.115891][    C2] RSP: 0018:ffa0000000157e00 EFLAGS: 00000282
[   29.115894][    C2] RAX: 0000000000100ea7 RBX: ff11000001bec6c0 RCX: ffffffff8d6f0307
[   29.115895][    C2] RDX: ff11000001bec6c0 RSI: ffffffff90438b1c RDI: ffffffff8fe8d8e0
[   29.115896][    C2] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[   29.115897][    C2] R10: 0000000000000002 R11: 0000000000000001 R12: 1ff400000002afc3
[   29.115897][    C2] R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000000
[   29.115899][    C2]  ? cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   29.115901][    C2]  default_idle (./arch/x86/include/asm/paravirt.h:62 arch/x86/kernel/process.c:768)
[   29.115903][    C2]  default_idle_call (kernel/sched/idle.c:122)
[   29.115905][    C2]  cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   29.115906][    C2]  ? arch_cpu_idle_exit+0x40/0x40
[   29.115908][    C2]  ? mark_tsc_async_resets (arch/x86/kernel/tsc_sync.c:49)
[   29.115910][    C2]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   29.115911][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.115913][    C2]  do_idle (kernel/sched/idle.c:355)
[   29.115914][    C2]  cpu_startup_entry (kernel/sched/idle.c:454)
[   29.115916][    C2]  start_secondary (arch/x86/kernel/smpboot.c:312)
[   29.115917][    C2]  ? set_cpu_sibling_map (arch/x86/kernel/smpboot.c:733 (discriminator 4))
[   29.115919][    C2]  common_startup_64 (arch/x86/kernel/head_64.S:418)
| [   31.746053][  T716] softirqs last disabled at (0): 0x0
| [   31.746054][  T716] Preemption disabled at:
| [   31.746055][  T716] 0x0
| [   31.746063][  T716] Tainted: [W]=WARN
[   31.746064][  T716] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   31.746066][  T716] Call Trace:
[   31.746067][  T716]  <TASK>
[   31.746069][  T716]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   31.746074][  T716]  __might_resched.cold (kernel/sched/core.c:9234)
[   31.746079][  T716]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   31.746082][  T716]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   31.746087][  T716]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   31.746090][  T716]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   31.746093][  T716]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   31.746097][  T716]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   31.746099][  T716]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   31.746101][  T716]  put_chars (drivers/char/virtio_console.c:1176)
[   31.746103][  T716]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   31.746105][  T716]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   31.746109][  T716]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   31.746112][  T716]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   31.746114][  T716]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   31.746116][  T716]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   31.746118][  T716]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   31.746120][  T716]  console_emit_next_record (kernel/printk/printk.c:3183)
[   31.746122][  T716]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   31.746124][  T716]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   31.746126][  T716]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   31.746128][  T716]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   31.746129][  T716]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   31.746131][  T716]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   31.746133][  T716]  console_flush_one_record (kernel/printk/printk.c:3268)
[   31.746135][  T716]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   31.746138][  T716]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   31.746139][  T716]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   31.746141][  T716]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   31.746143][  T716]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   31.746144][  T716]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   31.746146][  T716]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   31.746147][  T716]  ? __rcu_read_lock (kernel/rcu/tree_plugin.h:391 (discriminator 6) kernel/rcu/tree_plugin.h:414 (discriminator 6))
[   31.746149][  T716]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   31.746151][  T716]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   31.746153][  T716]  vprintk_emit (kernel/printk/printk.c:2479)
[   31.746156][  T716]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   31.746157][  T716]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   31.746159][  T716]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   31.746162][  T716]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:78)
[   31.746163][  T716]  _printk (kernel/printk/printk.c:2504)
[   31.746167][  T716]  ? snapshot_read.cold (user.c:?)
[   31.746169][  T716]  ? ipv6_mc_down (net/ipv6/mcast.c:1137 net/ipv6/mcast.c:2792)
[   31.746174][  T716] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   31.746187][  T716] br_stp_disable_port (net/bridge/br_stp_if.c:106) bridge
[   31.746195][  T716] br_device_event (net/bridge/br.c:111) bridge
[   31.746204][  T716]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   31.746208][  T716]  ? _sub_I_65535_1+0x4d0/0x4d0 stp
[   31.746210][  T716]  ? addrconf_notify (net/ipv6/addrconf.c:3812)
[   31.746213][  T716]  notifier_call_chain (kernel/notifier.c:85)
[   31.746216][  T716]  __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855)
[   31.746220][  T716]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   31.746222][  T716]  ? netif_change_name (net/core/dev.c:1517)
[   31.746224][  T716]  ? netif_set_allmulti (./include/net/netdev_lock.h:30 (discriminator 1))
[   31.746226][  T716]  ? __kernel_text_address (kernel/extable.c:79)
[   31.746228][  T716]  ? write_profile (profile.c:?)
[   31.746230][  T716]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   31.746233][  T716]  netif_change_flags (net/core/dev.c:9882)
[   31.746235][  T716]  do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1))
[   31.746238][  T716]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   31.746240][  T716]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   31.746241][  T716]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   31.746243][  T716]  ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[   31.746247][  T716]  ? kasan_save_stack (mm/kasan/common.c:58)
[   31.746250][  T716]  ? kasan_save_stack (mm/kasan/common.c:57)
[   31.746251][  T716]  ? kasan_save_track (mm/kasan/common.c:78)
[   31.746253][  T716]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   31.746254][  T716]  ? __kmalloc_cache_noprof (./include/linux/kasan.h:263 mm/slub.c:5563)
[   31.746255][  T716]  ? rtnl_newlink (./include/linux/slab.h:991 (discriminator 1) net/core/rtnetlink.c:4113 (discriminator 1))
[   31.746257][  T716]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   31.746258][  T716]  ? netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   31.746260][  T716]  ? netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   31.746262][  T716]  ? netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   31.746263][  T716]  ? ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   31.746266][  T716]  ? ___sys_sendmsg (net/socket.c:2767)
[   31.746267][  T716]  ? __sys_sendmsg (net/socket.c:2799)
[   31.746269][  T716]  ? do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   31.746271][  T716]  ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   31.746273][  T716]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   31.746275][  T716]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   31.746277][  T716]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   31.746278][  T716]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   31.746280][  T716]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   31.746283][  T716]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   31.746285][  T716]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   31.746286][  T716]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   31.746288][  T716]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   31.746290][  T716]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   31.746292][  T716]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   31.746294][  T716]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   31.746296][  T716]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   31.746297][  T716]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   31.746298][  T716]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   31.746300][  T716]  ? is_bpf_text_address (./include/linux/rcupdate.h:850 kernel/bpf/core.c:749)
[   31.746303][  T716]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   31.746305][  T716]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   31.746307][  T716]  ? __kernel_text_address (kernel/extable.c:79)
[   31.746308][  T716]  ? write_profile (profile.c:?)
[   31.746309][  T716]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   31.746310][  T716]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   31.746312][  T716]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   31.746314][  T716]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   31.746317][  T716]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   31.746319][  T716]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   31.746321][  T716]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   31.746322][  T716]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   31.746324][  T716]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   31.746325][  T716]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[   31.746326][  T716]  ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[   31.746329][  T716]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   31.746330][  T716]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   31.746332][  T716]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   31.746333][  T716]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   31.746335][  T716]  ? __netlink_lookup (./include/linux/rcupdate.h:850 ./include/linux/rhashtable.h:709 net/netlink/af_netlink.c:499)
[   31.746337][  T716]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   31.746339][  T716]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   31.746341][  T716]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   31.746343][  T716]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   31.746344][  T716]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   31.746346][  T716]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   31.746348][  T716]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   31.746349][  T716]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   31.746351][  T716]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   31.746353][  T716]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   31.746355][  T716]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   31.746357][  T716]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   31.746358][  T716]  ? copy_msghdr_from_user (net/socket.c:2650)
[   31.746360][  T716]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   31.746361][  T716]  ? move_addr_to_kernel (net/socket.c:258)
[   31.746363][  T716]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[   31.746365][  T716]  ___sys_sendmsg (net/socket.c:2767)
[   31.746367][  T716]  ? copy_msghdr_from_user (net/socket.c:2619)
[   31.746372][  T716]  __sys_sendmsg (net/socket.c:2799)
[   31.746374][  T716]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   31.746377][  T716]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   31.746379][  T716]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   31.746380][  T716]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   31.746382][  T716]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   31.746384][  T716] RIP: 0033:0x7f714015d54e
[   31.746386][  T716] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   31.746388][  T716] RSP: 002b:00007ffcf55f8650 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   31.746391][  T716] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f714015d54e
[   31.746392][  T716] RDX: 0000000000000000 RSI: 00007ffcf55f8700 RDI: 0000000000000005
[   31.746393][  T716] RBP: 00007ffcf55f8660 R08: 0000000000000000 R09: 0000000000000000
[   31.746394][  T716] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90e5ba


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