======================================
| [   10.817314][  T209] softirqs last disabled at (26057): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   10.817317][  T209] Preemption disabled at:
| [   10.817317][  T209] 0x0
| [   10.817327][  T209] Tainted: [W]=WARN
[   10.817328][  T209] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.817329][  T209] Call Trace:
[   10.817331][  T209]  <TASK>
[   10.817333][  T209]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   10.817344][  T209]  __might_resched.cold (kernel/sched/core.c:9234)
[   10.817348][  T209]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   10.817352][  T209]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   10.817357][  T209]  __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))
[   10.817359][  T209]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.817366][  T209]  ? 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)
[   10.817369][  T209]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.817373][  T209]  put_chars (drivers/char/virtio_console.c:1176)
[   10.817375][  T209]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   10.817376][  T209]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   10.817380][  T209]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   10.817385][  T209]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   10.817393][  T209]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   10.817395][  T209]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.817397][  T209]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.817401][  T209]  console_emit_next_record (kernel/printk/printk.c:3183)
[   10.817405][  T209]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   10.817407][  T209]  ? 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))
[   10.817411][  T209]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.817413][  T209]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.817418][  T209]  console_flush_one_record (kernel/printk/printk.c:3268)
[   10.817422][  T209]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   10.817424][  T209]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.817429][  T209]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   10.817432][  T209]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   10.817434][  T209]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.817436][  T209]  ? 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)
[   10.817439][  T209]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   10.817441][  T209]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   10.817444][  T209]  vprintk_emit (kernel/printk/printk.c:2479)
[   10.817447][  T209]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   10.817450][  T209]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.817453][  T209]  _printk (kernel/printk/printk.c:2504)
[   10.817457][  T209]  ? snapshot_read.cold (user.c:?)
[   10.817460][  T209]  ? do_raw_spin_lock (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:1301 ./include/asm-generic/qspinlock.h:112 kernel/locking/spinlock_debug.c:116)
[   10.817463][  T209]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   10.817467][  T209]  ? do_raw_spin_lock (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:1301 ./include/asm-generic/qspinlock.h:112 kernel/locking/spinlock_debug.c:116)
[   10.817470][  T209]  do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4))
[   10.817473][  T209]  ? exit_notify (kernel/exit.c:780)
[   10.817475][  T209]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   10.817477][  T209]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.817481][  T209]  do_group_exit (kernel/exit.c:1151)
[   10.817484][  T209]  __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160)
[   10.817485][  T209]  x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232)
[   10.817488][  T209]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   10.817492][  T209]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   10.817495][  T209]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.817497][  T209] RIP: 0033:0x7f4b497491b8
[   10.817499][  T209] Code: Unable to access opcode bytes at 0x7f4b4974918e.

Code starting with the faulting instruction
===========================================
[   10.817500][  T209] RSP: 002b:00007fffc39b3e08 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[   10.817502][  T209] RAX: ffffffffffffffda RBX: 00007f4b49879f88 RCX: 00007f4b497491b8
[   10.817504][  T209] RDX: 00007f4b49493fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000
[   10.817505][  T209] RBP: 00007fffc39b3e60 R08: 0000000000000000 R09: 0000000000000050
[   10.817506][  T209] R10: 00007fffc39b3c20 R11: 0000000000000246 R12: 0000000000000001
[   10.817506][  T209] R13: 0000000000000000 R14: 00007f4b49878680 R15: 00007f4b49879fa0
| [   12.010729][  T240] softirqs last disabled at (32268): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   12.010732][  T240] Preemption disabled at:
| [   12.010732][  T240] vprintk_emit (kernel/printk/printk.c:2471)
| [   12.010742][  T240] Tainted: [W]=WARN
[   12.010743][  T240] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.010744][  T240] Call Trace:
[   12.010746][  T240]  <TASK>
[   12.010748][  T240]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   12.010753][  T240]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   12.010755][  T240]  __might_resched.cold (kernel/sched/core.c:9234)
[   12.010760][  T240]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   12.010764][  T240]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   12.010769][  T240]  __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))
[   12.010771][  T240]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.010777][  T240]  ? 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)
[   12.010780][  T240]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.010784][  T240]  put_chars (drivers/char/virtio_console.c:1176)
[   12.010787][  T240]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   12.010793][  T240]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   12.010801][  T240]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   12.010804][  T240]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.010809][  T240]  console_emit_next_record (kernel/printk/printk.c:3183)
[   12.010813][  T240]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   12.010815][  T240]  ? 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))
[   12.010818][  T240]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.010821][  T240]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.010825][  T240]  console_flush_one_record (kernel/printk/printk.c:3268)
[   12.010829][  T240]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   12.010831][  T240]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.010836][  T240]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   12.010839][  T240]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   12.010841][  T240]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.010843][  T240]  ? 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)
[   12.010847][  T240]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   12.010849][  T240]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   12.010852][  T240]  vprintk_emit (kernel/printk/printk.c:2479)
[   12.010855][  T240]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   12.010857][  T240]  ? save_trace (kernel/locking/lockdep.c:589)
[   12.010861][  T240]  _printk (kernel/printk/printk.c:2504)
[   12.010865][  T240]  ? snapshot_read.cold (user.c:?)
[   12.010869][  T240]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   12.010871][  T240]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   12.010875][  T240]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   12.010878][  T240]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   12.010880][  T240]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   12.010883][  T240]  ? netdev_notice (net/core/dev.c:13194)
[   12.010885][  T240]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.010889][  T240]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   12.010891][  T240]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   12.010895][  T240]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   12.010897][  T240]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   12.010899][  T240]  ? register_netdev (net/core/dev.c:11618)
[   12.010901][  T240]  ? 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))
[   12.010906][  T240]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   12.010909][  T240]  ? __kernel_text_address (kernel/extable.c:79)
[   12.010911][  T240]  ? write_profile (profile.c:?)
[   12.010916][  T240]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   12.010921][  T240]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   12.010925][  T240]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   12.010927][  T240]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   12.010928][  T240]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   12.010931][  T240]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   12.010935][  T240]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   12.010937][  T240]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   12.010939][  T240]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   12.010941][  T240]  ? kasan_save_stack (mm/kasan/common.c:58)
[   12.010943][  T240]  ? kasan_save_stack (mm/kasan/common.c:57)
[   12.010944][  T240]  ? kasan_save_track (mm/kasan/common.c:78)
[   12.010945][  T240]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   12.010948][  T240]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.010950][  T240]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   12.010953][  T240]  ? ___sys_sendmsg (net/socket.c:2758)
[   12.010957][  T240]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.010959][  T240]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   12.010962][  T240]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.010963][  T240]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.010965][  T240]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.010966][  T240]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.010968][  T240]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   12.010970][  T240]  ? __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)
[   12.010973][  T240]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   12.010975][  T240]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   12.010978][  T240]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   12.010980][  T240]  ? nla_get_range_signed (lib/nlattr.c:270)
[   12.010985][  T240]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.010987][  T240]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   12.010992][  T240]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   12.010998][  T240]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   12.011000][  T240]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.011004][  T240]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.011006][  T240]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.011008][  T240]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   12.011010][  T240]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   12.011014][  T240]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   12.011016][  T240]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   12.011020][  T240]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   12.011021][  T240]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.011026][  T240]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.011028][  T240]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.011031][  T240]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   12.011034][  T240]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   12.011037][  T240]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   12.011044][  T240]  ? 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))
[   12.011046][  T240]  ? 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))
[   12.011051][  T240]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   12.011055][  T240]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   12.011058][  T240]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.011062][  T240]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   12.011066][  T240]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   12.011070][  T240]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   12.011072][  T240]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   12.011078][  T240]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   12.011081][  T240]  ____sys_sendmsg (net/socket.c:2713)
[   12.011083][  T240]  ? copy_msghdr_from_user (net/socket.c:2650)
[   12.011085][  T240]  ? sock_write_iter (net/socket.c:1269)
[   12.011087][  T240]  ? move_addr_to_kernel (net/socket.c:258)
[   12.011095][  T240]  ___sys_sendmsg (net/socket.c:2767)
[   12.011098][  T240]  ? copy_msghdr_from_user (net/socket.c:2619)
[   12.011116][  T240]  __sys_sendmsg (net/socket.c:2799)
[   12.011119][  T240]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   12.011126][  T240]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.011129][  T240]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   12.011132][  T240]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   12.011135][  T240]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.011138][  T240] RIP: 0033:0x7f20c13de54e
[   12.011142][  T240] 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
[   12.011143][  T240] RSP: 002b:00007ffe9424c8e0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   12.011146][  T240] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f20c13de54e
[   12.011147][  T240] RDX: 0000000000000000 RSI: 00007ffe9424c990 RDI: 0000000000000005
[   12.011148][  T240] RBP: 00007ffe9424c8f0 R08: 0000000000000000 R09: 0000000000000000
[   12.011149][  T240] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a910bf6
[   12.011150][  T240] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffe9424d060
| [   13.143141][  T276] softirqs last disabled at (16741): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   13.143144][  T276] Preemption disabled at:
| [   13.143145][  T276] vprintk_emit (kernel/printk/printk.c:2471)
| [   13.143153][  T276] Tainted: [W]=WARN
[   13.143154][  T276] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.143156][  T276] Call Trace:
[   13.143157][  T276]  <TASK>
[   13.143159][  T276]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   13.143164][  T276]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   13.143166][  T276]  __might_resched.cold (kernel/sched/core.c:9234)
[   13.143171][  T276]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   13.143175][  T276]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   13.143179][  T276]  __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))
[   13.143181][  T276]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   13.143188][  T276]  ? 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)
[   13.143191][  T276]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   13.143195][  T276]  put_chars (drivers/char/virtio_console.c:1176)
[   13.143197][  T276]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   13.143199][  T276]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   13.143202][  T276]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   13.143205][  T276]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   13.143210][  T276]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   13.143214][  T276]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.143219][  T276]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   13.143222][  T276]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.143226][  T276]  console_emit_next_record (kernel/printk/printk.c:3183)
[   13.143230][  T276]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   13.143232][  T276]  ? 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))
[   13.143235][  T276]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.143237][  T276]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   13.143241][  T276]  console_flush_one_record (kernel/printk/printk.c:3268)
[   13.143245][  T276]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   13.143247][  T276]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.143252][  T276]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   13.143255][  T276]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   13.143257][  T276]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.143258][  T276]  ? 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)
[   13.143262][  T276]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   13.143264][  T276]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   13.143266][  T276]  vprintk_emit (kernel/printk/printk.c:2479)
[   13.143270][  T276]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   13.143275][  T276]  ? l2tp_ip6_exit (./include/net/sock.h:2854 (discriminator 2) ./include/net/sock.h:2886 (discriminator 2) net/l2tp/l2tp_ip6.c:710 (discriminator 2)) l2tp_ip6
[   13.143278][  T276]  _printk (kernel/printk/printk.c:2504)
[   13.143282][  T276]  ? snapshot_read.cold (user.c:?)
[   13.143288][  T276]  ? 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)
[   13.143291][  T276] l2tp_ip6_init (net/l2tp/l2tp_ip6.c:273) l2tp_ip6
[   13.143294][  T276]  do_one_initcall (init/main.c:1357)
[   13.143297][  T276]  ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10)
[   13.143302][  T276]  ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1))
[   13.143304][  T276]  ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178)
[   13.143310][  T276]  do_init_module (kernel/module/main.c:3117)
[   13.143313][  T276]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   13.143317][  T276]  ? free_module (./include/trace/events/module.h:50 (discriminator 19))
[   13.143320][  T276]  ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792)
[   13.143323][  T276]  load_module (kernel/module/main.c:3593)
[   13.143328][  T276]  ? security_kernel_post_read_file (security/security.c:2997 (discriminator 11))
[   13.143333][  T276]  ? layout_and_allocate.isra.0 (kernel/module/main.c:3016)
[   13.143336][  T276]  ? __ia32_sys_fsconfig (??:?)
[   13.143340][  T276]  ? backing_file_read_iter (fs/backing-file.c:211)
[   13.143344][  T276]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   13.143352][  T276]  init_module_from_file (kernel/module/main.c:3790)
[   13.143355][  T276]  ? __do_sys_init_module (kernel/module/main.c:3664)
[   13.143362][  T276]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   13.143366][  T276]  ? 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)
[   13.143369][  T276]  idempotent_init_module (kernel/module/main.c:3802)
[   13.143372][  T276]  ? init_module_from_file (kernel/module/main.c:3791)
[   13.143377][  T276]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   13.143379][  T276]  ? __x64_sys_pread64 (fs/read_write.c:764 fs/read_write.c:772 fs/read_write.c:769 fs/read_write.c:769)
[   13.143385][  T276]  __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812)
[   13.143386][  T276]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   13.143390][  T276]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   13.143393][  T276]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   13.143395][  T276]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   13.143398][  T276] RIP: 0033:0x7f7efa79437d
[   13.143401][  T276] 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
[   13.143403][  T276] RSP: 002b:00007ffdc911cb48 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[   13.143405][  T276] RAX: ffffffffffffffda RBX: 000055c620b40810 RCX: 00007f7efa79437d
[   13.143407][  T276] RDX: 0000000000000000 RSI: 000055c600f89ffd RDI: 0000000000000000
[   13.143408][  T276] RBP: 00007ffdc911cbe0 R08: 0000000000000000 R09: 0000000000000000
[   13.143409][  T276] R10: 0000000000000000 R11: 0000000000000246 R12: 000055c600f89ffd


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