======================================
| [    9.614506][  T211] softirqs last disabled at (19799): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [    9.614509][  T211] Preemption disabled at:
| [    9.614509][  T211] 0x0
| [    9.614519][  T211] Tainted: [W]=WARN
[    9.614520][  T211] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.614522][  T211] Call Trace:
[    9.614523][  T211]  <TASK>
[    9.614524][  T211]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[    9.614531][  T211]  __might_resched.cold (kernel/sched/core.c:9234)
[    9.614535][  T211]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[    9.614540][  T211]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[    9.614544][  T211]  __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))
[    9.614546][  T211]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[    9.614552][  T211]  ? 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)
[    9.614555][  T211]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[    9.614559][  T211]  put_chars (drivers/char/virtio_console.c:1176)
[    9.614561][  T211]  ? __send_to_port (drivers/char/virtio_console.c:654)
[    9.614562][  T211]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[    9.614566][  T211]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[    9.614571][  T211]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[    9.614578][  T211]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[    9.614581][  T211]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.614583][  T211]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[    9.614587][  T211]  console_emit_next_record (kernel/printk/printk.c:3183)
[    9.614591][  T211]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[    9.614593][  T211]  ? 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))
[    9.614596][  T211]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.614597][  T211]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[    9.614601][  T211]  console_flush_one_record (kernel/printk/printk.c:3268)
[    9.614605][  T211]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[    9.614607][  T211]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[    9.614612][  T211]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[    9.614615][  T211]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[    9.614617][  T211]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.614618][  T211]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[    9.614622][  T211]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[    9.614624][  T211]  ? vprintk_emit (kernel/printk/printk.c:2478)
[    9.614626][  T211]  vprintk_emit (kernel/printk/printk.c:2479)
[    9.614629][  T211]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[    9.614632][  T211]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[    9.614636][  T211]  _printk (kernel/printk/printk.c:2504)
[    9.614639][  T211]  ? snapshot_read.cold (user.c:?)
[    9.614642][  T211]  ? 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)
[    9.614645][  T211]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[    9.614648][  T211]  ? 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)
[    9.614651][  T211]  do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4))
[    9.614655][  T211]  ? exit_notify (kernel/exit.c:780)
[    9.614656][  T211]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[    9.614659][  T211]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.614662][  T211]  do_group_exit (kernel/exit.c:1151)
[    9.614665][  T211]  __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160)
[    9.614667][  T211]  x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232)
[    9.614669][  T211]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[    9.614673][  T211]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[    9.614676][  T211]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.614678][  T211] RIP: 0033:0x7fb149b601b8
[    9.614680][  T211] Code: Unable to access opcode bytes at 0x7fb149b6018e.

Code starting with the faulting instruction
===========================================
[    9.614681][  T211] RSP: 002b:00007ffc58eb7798 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[    9.614683][  T211] RAX: ffffffffffffffda RBX: 00007fb149c90f88 RCX: 00007fb149b601b8
[    9.614684][  T211] RDX: 00007fb1498aafc8 RSI: fffffffffffffeb8 RDI: 0000000000000000
[    9.614685][  T211] RBP: 00007ffc58eb77f0 R08: 0000000000000000 R09: 0000000000000050
[    9.614686][  T211] R10: 00007ffc58eb75b0 R11: 0000000000000246 R12: 0000000000000001
[    9.614687][  T211] R13: 0000000000000000 R14: 00007fb149c8f680 R15: 00007fb149c90fa0
| [   10.654509][  T241] softirqs last disabled at (24396): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   10.654512][  T241] Preemption disabled at:
| [   10.654512][  T241] vprintk_emit (kernel/printk/printk.c:2471)
| [   10.654520][  T241] Tainted: [W]=WARN
[   10.654521][  T241] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.654523][  T241] Call Trace:
[   10.654524][  T241]  <TASK>
[   10.654526][  T241]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   10.654532][  T241]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   10.654533][  T241]  __might_resched.cold (kernel/sched/core.c:9234)
[   10.654538][  T241]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   10.654542][  T241]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   10.654547][  T241]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   10.654549][  T241]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.654555][  T241]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   10.654557][  T241]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.654561][  T241]  put_chars (drivers/char/virtio_console.c:1176)
[   10.654563][  T241]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   10.654569][  T241]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   10.654577][  T241]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   10.654580][  T241]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.654584][  T241]  console_emit_next_record (kernel/printk/printk.c:3183)
[   10.654588][  T241]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   10.654589][  T241]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   10.654592][  T241]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.654595][  T241]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.654599][  T241]  console_flush_one_record (kernel/printk/printk.c:3268)
[   10.654603][  T241]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   10.654605][  T241]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.654610][  T241]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   10.654613][  T241]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   10.654615][  T241]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.654616][  T241]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   10.654620][  T241]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   10.654621][  T241]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   10.654624][  T241]  vprintk_emit (kernel/printk/printk.c:2479)
[   10.654627][  T241]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   10.654629][  T241]  ? save_trace (kernel/locking/lockdep.c:589)
[   10.654633][  T241]  _printk (kernel/printk/printk.c:2504)
[   10.654637][  T241]  ? snapshot_read.cold (user.c:?)
[   10.654640][  T241]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   10.654642][  T241]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   10.654646][  T241]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   10.654648][  T241]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   10.654650][  T241]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   10.654653][  T241]  ? netdev_notice (net/core/dev.c:13194)
[   10.654656][  T241]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   10.654658][  T241]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   10.654661][  T241]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   10.654664][  T241]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   10.654666][  T241]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   10.654668][  T241]  ? register_netdev (net/core/dev.c:11618)
[   10.654669][  T241]  ? is_bpf_text_address (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) kernel/bpf/core.c:751 (discriminator 2))
[   10.654674][  T241]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   10.654677][  T241]  ? __kernel_text_address (kernel/extable.c:79)
[   10.654680][  T241]  ? write_profile (profile.c:?)
[   10.654684][  T241]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   10.654689][  T241]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   10.654692][  T241]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   10.654694][  T241]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   10.654696][  T241]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   10.654698][  T241]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   10.654702][  T241]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   10.654704][  T241]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   10.654706][  T241]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   10.654711][  T241]  ? kasan_save_stack (mm/kasan/common.c:58)
[   10.654713][  T241]  ? kasan_save_stack (mm/kasan/common.c:57)
[   10.654714][  T241]  ? kasan_save_track (mm/kasan/common.c:78)
[   10.654715][  T241]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   10.654718][  T241]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.654720][  T241]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   10.654723][  T241]  ? ___sys_sendmsg (net/socket.c:2758)
[   10.654726][  T241]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   10.654728][  T241]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   10.654731][  T241]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.654732][  T241]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.654734][  T241]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.654735][  T241]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.654737][  T241]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   10.654739][  T241]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   10.654742][  T241]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   10.654743][  T241]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   10.654747][  T241]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   10.654748][  T241]  ? nla_get_range_signed (lib/nlattr.c:270)
[   10.654752][  T241]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.654755][  T241]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   10.654760][  T241]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   10.654765][  T241]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   10.654766][  T241]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.654771][  T241]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   10.654773][  T241]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   10.654774][  T241]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   10.654776][  T241]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   10.654780][  T241]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   10.654782][  T241]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   10.654785][  T241]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   10.654786][  T241]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.654790][  T241]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   10.654792][  T241]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   10.654796][  T241]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   10.654799][  T241]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   10.654801][  T241]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   10.654807][  T241]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   10.654809][  T241]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   10.654814][  T241]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   10.654818][  T241]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   10.654820][  T241]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   10.654824][  T241]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   10.654828][  T241]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   10.654832][  T241]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   10.654833][  T241]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   10.654839][  T241]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   10.654841][  T241]  ____sys_sendmsg (net/socket.c:2713)
[   10.654843][  T241]  ? copy_msghdr_from_user (net/socket.c:2650)
[   10.654846][  T241]  ? sock_write_iter (net/socket.c:1269)
[   10.654847][  T241]  ? move_addr_to_kernel (net/socket.c:258)
[   10.654854][  T241]  ___sys_sendmsg (net/socket.c:2767)
[   10.654857][  T241]  ? copy_msghdr_from_user (net/socket.c:2619)
[   10.654872][  T241]  __sys_sendmsg (net/socket.c:2799)
[   10.654875][  T241]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   10.654881][  T241]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.654884][  T241]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   10.654887][  T241]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   10.654889][  T241]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.654892][  T241] RIP: 0033:0x7fcaab4d954e
[   10.654895][  T241] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   10.654897][  T241] RSP: 002b:00007fff3dc43df0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   10.654899][  T241] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fcaab4d954e
[   10.654901][  T241] RDX: 0000000000000000 RSI: 00007fff3dc43ea0 RDI: 0000000000000005
[   10.654902][  T241] RBP: 00007fff3dc43e00 R08: 0000000000000000 R09: 0000000000000000
[   10.654902][  T241] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90f6a0
[   10.654903][  T241] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fff3dc44570
| [   11.713743][  T277] softirqs last disabled at (31689): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   11.713746][  T277] Preemption disabled at:
| [   11.713746][  T277] vprintk_emit (kernel/printk/printk.c:2471)
| [   11.713754][  T277] Tainted: [W]=WARN
[   11.713755][  T277] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.713757][  T277] Call Trace:
[   11.713758][  T277]  <TASK>
[   11.713760][  T277]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   11.713766][  T277]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   11.713767][  T277]  __might_resched.cold (kernel/sched/core.c:9234)
[   11.713772][  T277]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   11.713776][  T277]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   11.713781][  T277]  __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))
[   11.713782][  T277]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.713789][  T277]  ? 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)
[   11.713792][  T277]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.713796][  T277]  put_chars (drivers/char/virtio_console.c:1176)
[   11.713798][  T277]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   11.713799][  T277]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   11.713803][  T277]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   11.713805][  T277]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   11.713810][  T277]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   11.713814][  T277]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.713819][  T277]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   11.713822][  T277]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.713826][  T277]  console_emit_next_record (kernel/printk/printk.c:3183)
[   11.713830][  T277]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   11.713832][  T277]  ? 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))
[   11.713835][  T277]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.713837][  T277]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.713840][  T277]  console_flush_one_record (kernel/printk/printk.c:3268)
[   11.713844][  T277]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   11.713846][  T277]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.713851][  T277]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   11.713854][  T277]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   11.713856][  T277]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.713857][  T277]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   11.713861][  T277]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   11.713862][  T277]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   11.713865][  T277]  vprintk_emit (kernel/printk/printk.c:2479)
[   11.713868][  T277]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   11.713873][  T277]  ? l2tp_exit (./include/linux/perf_event.h:1597 (discriminator 1) ./net/l2tp/./trace.h:27 (discriminator 1) ./net/l2tp/./trace.h:27 (discriminator 1)) l2tp_core
[   11.713878][  T277]  _printk (kernel/printk/printk.c:2504)
[   11.713881][  T277]  ? snapshot_read.cold (user.c:?)
[   11.713887][  T277]  ? do_one_initcall (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 ./include/linux/cpumask.h:650 ./include/linux/cpumask.h:1232 ./include/trace/events/initcall.h:27 init/main.c:1356)
[   11.713891][  T277] l2tp_ip6_init (net/l2tp/l2tp_ip6.c:273) l2tp_ip6
[   11.713893][  T277]  do_one_initcall (init/main.c:1357)
[   11.713896][  T277]  ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10)
[   11.713900][  T277]  ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1))
[   11.713903][  T277]  ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178)
[   11.713908][  T277]  do_init_module (kernel/module/main.c:3117)
[   11.713911][  T277]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   11.713915][  T277]  ? free_module (./include/trace/events/module.h:50 (discriminator 19))
[   11.713917][  T277]  ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792)
[   11.713921][  T277]  load_module (kernel/module/main.c:3593)
[   11.713926][  T277]  ? security_kernel_post_read_file (security/security.c:2997 (discriminator 11))
[   11.713931][  T277]  ? layout_and_allocate.isra.0 (kernel/module/main.c:3016)
[   11.713934][  T277]  ? __ia32_sys_fsconfig (??:?)
[   11.713938][  T277]  ? backing_file_read_iter (fs/backing-file.c:211)
[   11.713941][  T277]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   11.713944][  T277]  init_module_from_file (kernel/module/main.c:3790)
[   11.713947][  T277]  ? __do_sys_init_module (kernel/module/main.c:3664)
[   11.713954][  T277]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   11.713958][  T277]  ? 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)
[   11.713960][  T277]  idempotent_init_module (kernel/module/main.c:3802)
[   11.713963][  T277]  ? init_module_from_file (kernel/module/main.c:3791)
[   11.713968][  T277]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   11.713970][  T277]  ? __x64_sys_pread64 (fs/read_write.c:764 fs/read_write.c:772 fs/read_write.c:769 fs/read_write.c:769)
[   11.713976][  T277]  __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812)
[   11.713977][  T277]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   11.713981][  T277]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   11.713984][  T277]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   11.713987][  T277]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.713989][  T277] RIP: 0033:0x7f1a9744d37d
[   11.713992][  T277] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 4b aa 0f 00 f7 d8 64 89 01 48
All code
========
   0:	ff c3                	inc    %ebx
   2:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
   9:	00 00 00 
   c:	90                   	nop
   d:	f3 0f 1e fa          	endbr64
  11:	48 89 f8             	mov    %rdi,%rax
  14:	48 89 f7             	mov    %rsi,%rdi
  17:	48 89 d6             	mov    %rdx,%rsi
  1a:	48 89 ca             	mov    %rcx,%rdx
  1d:	4d 89 c2             	mov    %r8,%r10
  20:	4d 89 c8             	mov    %r9,%r8
  23:	4c 8b 4c 24 08       	mov    0x8(%rsp),%r9
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d 4b aa 0f 00 	mov    0xfaa4b(%rip),%rcx        # 0xfaa85
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d 4b aa 0f 00 	mov    0xfaa4b(%rip),%rcx        # 0xfaa5b
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   11.713994][  T277] RSP: 002b:00007ffff38b0f48 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[   11.713996][  T277] RAX: ffffffffffffffda RBX: 000055f34ca7f810 RCX: 00007f1a9744d37d
[   11.713997][  T277] RDX: 0000000000000000 RSI: 000055f328af0ffd RDI: 0000000000000000
[   11.713998][  T277] RBP: 00007ffff38b0fe0 R08: 0000000000000000 R09: 0000000000000000
[   11.713999][  T277] R10: 0000000000000000 R11: 0000000000000246 R12: 000055f328af0ffd


Finger prints:
__irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print
__irq_exit_rcu:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars
netif_change_name:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars