======================================
| [   10.726474][  T192] softirqs last disabled at (30393): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   10.726476][  T192] Preemption disabled at:
| [   10.726476][  T192] 0x0
| [   10.726488][  T192] Tainted: [W]=WARN
[   10.726490][  T192] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.726491][  T192] Call Trace:
[   10.726493][  T192]  <TASK>
[   10.726494][  T192]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   10.726501][  T192]  __might_resched.cold (kernel/sched/core.c:9234)
[   10.726507][  T192]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   10.726512][  T192]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   10.726517][  T192]  __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))
[   10.726520][  T192]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.726527][  T192]  ? 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)
[   10.726530][  T192]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.726533][  T192]  put_chars (drivers/char/virtio_console.c:1176)
[   10.726536][  T192]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   10.726538][  T192]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   10.726544][  T192]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   10.726550][  T192]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   10.726556][  T192]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   10.726560][  T192]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.726563][  T192]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.726567][  T192]  console_emit_next_record (kernel/printk/printk.c:3183)
[   10.726571][  T192]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   10.726573][  T192]  ? 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))
[   10.726579][  T192]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.726582][  T192]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.726586][  T192]  console_flush_one_record (kernel/printk/printk.c:3268)
[   10.726590][  T192]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   10.726592][  T192]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.726600][  T192]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   10.726603][  T192]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   10.726605][  T192]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.726607][  T192]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   10.726612][  T192]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   10.726615][  T192]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   10.726619][  T192]  vprintk_emit (kernel/printk/printk.c:2479)
[   10.726623][  T192]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   10.726626][  T192]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.726632][  T192]  _printk (kernel/printk/printk.c:2504)
[   10.726636][  T192]  ? snapshot_read.cold (user.c:?)
[   10.726639][  T192]  ? 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)
[   10.726642][  T192]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   10.726646][  T192]  ? 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)
[   10.726651][  T192]  do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4))
[   10.726656][  T192]  ? exit_notify (kernel/exit.c:780)
[   10.726658][  T192]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   10.726660][  T192]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.726665][  T192]  do_group_exit (kernel/exit.c:1151)
[   10.726670][  T192]  __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160)
[   10.726673][  T192]  x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232)
[   10.726675][  T192]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   10.726678][  T192]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   10.726682][  T192]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.726684][  T192] RIP: 0033:0x7f225c3b01b8
[   10.726687][  T192] Code: Unable to access opcode bytes at 0x7f225c3b018e.

Code starting with the faulting instruction
===========================================
[   10.726689][  T192] RSP: 002b:00007ffdb6708e88 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[   10.726692][  T192] RAX: ffffffffffffffda RBX: 00007f225c4e0f88 RCX: 00007f225c3b01b8
[   10.726693][  T192] RDX: 00007f225c0fafc8 RSI: fffffffffffffeb8 RDI: 0000000000000000
[   10.726694][  T192] RBP: 00007ffdb6708ee0 R08: 0000000000000000 R09: 0000000000008010
[   10.726695][  T192] R10: 00007ffdb6708ca0 R11: 0000000000000246 R12: 0000000000000001
[   10.726696][  T192] R13: 0000000000000000 R14: 00007f225c4df680 R15: 00007f225c4e0fa0
| [   12.870558][  T268] softirqs last disabled at (15136): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   12.870561][  T268] Preemption disabled at:
| [   12.870562][  T268] vprintk_emit (kernel/printk/printk.c:2471)
| [   12.870573][  T268] Tainted: [W]=WARN
[   12.870575][  T268] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.870577][  T268] Call Trace:
[   12.870579][  T268]  <TASK>
[   12.870581][  T268]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   12.870588][  T268]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   12.870592][  T268]  __might_resched.cold (kernel/sched/core.c:9234)
[   12.870598][  T268]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   12.870604][  T268]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   12.870613][  T268]  __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))
[   12.870617][  T268]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.870625][  T268]  ? 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)
[   12.870628][  T268]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.870633][  T268]  put_chars (drivers/char/virtio_console.c:1176)
[   12.870638][  T268]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   12.870645][  T268]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   12.870651][  T268]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   12.870655][  T268]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   12.870658][  T268]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.870660][  T268]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.870667][  T268]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   12.870670][  T268]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   12.870675][  T268]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.870680][  T268]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.870687][  T268]  console_emit_next_record (kernel/printk/printk.c:3183)
[   12.870693][  T268]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   12.870695][  T268]  ? 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))
[   12.870700][  T268]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.870704][  T268]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.870710][  T268]  console_flush_one_record (kernel/printk/printk.c:3268)
[   12.870717][  T268]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   12.870719][  T268]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.870728][  T268]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   12.870733][  T268]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   12.870735][  T268]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.870739][  T268]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   12.870745][  T268]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   12.870747][  T268]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   12.870753][  T268]  vprintk_emit (kernel/printk/printk.c:2479)
[   12.870759][  T268]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   12.870762][  T268]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   12.870765][  T268]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   12.870770][  T268]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   12.870776][  T268]  _printk (kernel/printk/printk.c:2504)
[   12.870781][  T268]  ? snapshot_read.cold (user.c:?)
[   12.870787][  T268]  ? br_multicast_flood (??:?) bridge
[   12.870805][  T268]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   12.870807][  T268]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   12.870809][  T268]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   12.870816][  T268] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   12.870832][  T268] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   12.870845][  T268] new_nbp (net/bridge/br_if.c:449) bridge
[   12.870861][  T268] br_add_if (net/bridge/br_if.c:592) bridge
[   12.870873][  T268]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   12.870878][  T268]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   12.870882][  T268]  ? __kernel_text_address (kernel/extable.c:79)
[   12.870888][  T268]  do_set_master (net/core/rtnetlink.c:3071)
[   12.870895][  T268]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   12.870900][  T268]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   12.870904][  T268]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   12.870906][  T268]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   12.870910][  T268]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   12.870914][  T268]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   12.870918][  T268]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   12.870921][  T268]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   12.870925][  T268]  ? kasan_save_stack (mm/kasan/common.c:58)
[   12.870928][  T268]  ? kasan_save_stack (mm/kasan/common.c:57)
[   12.870930][  T268]  ? kasan_save_track (mm/kasan/common.c:78)
[   12.870935][  T268]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.870938][  T268]  ? netlink_seq_next (net/netlink/af_netlink.c:2685)
[   12.870941][  T268]  ? ___sys_sendmsg (net/socket.c:2757)
[   12.870948][  T268]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.870951][  T268]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   12.870955][  T268]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.870958][  T268]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.870961][  T268]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.870963][  T268]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.870966][  T268]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   12.870971][  T268]  ? __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)
[   12.870974][  T268]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   12.870977][  T268]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   12.870982][  T268]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   12.870985][  T268]  ? nla_get_range_signed (lib/nlattr.c:270)
[   12.870993][  T268]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   12.871003][  T268]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   12.871012][  T268]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   12.871015][  T268]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.871022][  T268]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.871025][  T268]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.871028][  T268]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   12.871031][  T268]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   12.871037][  T268]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   12.871041][  T268]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   12.871045][  T268]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   12.871048][  T268]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.871055][  T268]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.871062][  T268]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.871068][  T268]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   12.871071][  T268]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   12.871075][  T268]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   12.871086][  T268]  ? 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))
[   12.871088][  T268]  ? 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))
[   12.871096][  T268]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   12.871102][  T268]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   12.871106][  T268]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.871113][  T268]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   12.871120][  T268]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   12.871126][  T268]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   12.871134][  T268]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   12.871137][  T268]  ? copy_msghdr_from_user (net/socket.c:2650)
[   12.871140][  T268]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   12.871143][  T268]  ? move_addr_to_kernel (net/socket.c:258)
[   12.871155][  T268]  ___sys_sendmsg (net/socket.c:2767)
[   12.871160][  T268]  ? copy_msghdr_from_user (net/socket.c:2619)
[   12.871187][  T268]  __sys_sendmsg (net/socket.c:2799)
[   12.871191][  T268]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   12.871202][  T268]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.871207][  T268]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   12.871211][  T268]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   12.871216][  T268]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.871219][  T268] RIP: 0033:0x7fec6324954e
[   12.871224][  T268] 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
[   12.871226][  T268] RSP: 002b:00007ffed4dd8cd0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   12.871229][  T268] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fec6324954e
[   12.871231][  T268] RDX: 0000000000000000 RSI: 00007ffed4dd8d80 RDI: 0000000000000005
[   12.871233][  T268] RBP: 00007ffed4dd8ce0 R08: 0000000000000000 R09: 0000000000000000
[   12.871234][  T268] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90e347
[   12.871235][  T268] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffed4dd9440
| [   14.307722][  T317] softirqs last disabled at (18396): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   14.307724][  T317] Preemption disabled at:
| [   14.307725][  T317] vprintk_emit (kernel/printk/printk.c:2471)
| [   14.307734][  T317] Tainted: [W]=WARN
[   14.307735][  T317] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   14.307737][  T317] Call Trace:
[   14.307739][  T317]  <TASK>
[   14.307740][  T317]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   14.307746][  T317]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   14.307748][  T317]  __might_resched.cold (kernel/sched/core.c:9234)
[   14.307753][  T317]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   14.307757][  T317]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   14.307762][  T317]  __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))
[   14.307764][  T317]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   14.307770][  T317]  ? 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)
[   14.307772][  T317]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   14.307776][  T317]  put_chars (drivers/char/virtio_console.c:1176)
[   14.307778][  T317]  ? prb_final_commit (kernel/printk/printk_ringbuffer.c:1842)
[   14.307782][  T317]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   14.307786][  T317]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   14.307790][  T317]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   14.307793][  T317]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   14.307796][  T317]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   14.307799][  T317]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   14.307801][  T317]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.307803][  T317]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.307806][  T317]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   14.307809][  T317]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   14.307812][  T317]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.307814][  T317]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   14.307818][  T317]  console_emit_next_record (kernel/printk/printk.c:3183)
[   14.307822][  T317]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   14.307824][  T317]  ? 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))
[   14.307827][  T317]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.307829][  T317]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   14.307833][  T317]  console_flush_one_record (kernel/printk/printk.c:3268)
[   14.307837][  T317]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   14.307839][  T317]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.307844][  T317]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   14.307847][  T317]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   14.307849][  T317]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.307851][  T317]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   14.307855][  T317]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   14.307856][  T317]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   14.307860][  T317]  vprintk_emit (kernel/printk/printk.c:2479)
[   14.307864][  T317]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   14.307866][  T317]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   14.307869][  T317]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   14.307872][  T317]  _printk (kernel/printk/printk.c:2504)
[   14.307876][  T317]  ? snapshot_read.cold (user.c:?)
[   14.307880][  T317]  ? br_multicast_flood (??:?) bridge
[   14.307893][  T317]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   14.307895][  T317]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   14.307896][  T317]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   14.307900][  T317] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   14.307911][  T317] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   14.307919][  T317] new_nbp (net/bridge/br_if.c:449) bridge
[   14.307928][  T317] br_add_if (net/bridge/br_if.c:592) bridge
[   14.307935][  T317]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   14.307939][  T317]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   14.307942][  T317]  ? __kernel_text_address (kernel/extable.c:79)
[   14.307946][  T317]  do_set_master (net/core/rtnetlink.c:3071)
[   14.307950][  T317]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   14.307954][  T317]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   14.307957][  T317]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   14.307958][  T317]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   14.307960][  T317]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   14.307963][  T317]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   14.307966][  T317]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   14.307968][  T317]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   14.307970][  T317]  ? kasan_save_stack (mm/kasan/common.c:58)
[   14.307973][  T317]  ? kasan_save_stack (mm/kasan/common.c:57)
[   14.307975][  T317]  ? kasan_save_track (mm/kasan/common.c:78)
[   14.307977][  T317]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.307979][  T317]  ? netlink_seq_next (net/netlink/af_netlink.c:2685)
[   14.307982][  T317]  ? ___sys_sendmsg (net/socket.c:2757)
[   14.307987][  T317]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   14.307988][  T317]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   14.307991][  T317]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.307993][  T317]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   14.307995][  T317]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.307997][  T317]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.307999][  T317]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   14.308003][  T317]  ? __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)
[   14.308006][  T317]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   14.308009][  T317]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   14.308012][  T317]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   14.308014][  T317]  ? nla_get_range_signed (lib/nlattr.c:270)
[   14.308018][  T317]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   14.308024][  T317]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   14.308029][  T317]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   14.308031][  T317]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.308035][  T317]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   14.308037][  T317]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   14.308039][  T317]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   14.308041][  T317]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   14.308044][  T317]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   14.308046][  T317]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   14.308049][  T317]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   14.308050][  T317]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.308055][  T317]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   14.308057][  T317]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   14.308060][  T317]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   14.308066][  T317]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   14.308069][  T317]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   14.308075][  T317]  ? 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))
[   14.308077][  T317]  ? 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))
[   14.308081][  T317]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   14.308085][  T317]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   14.308087][  T317]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.308091][  T317]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   14.308095][  T317]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   14.308099][  T317]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   14.308104][  T317]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   14.308106][  T317]  ? copy_msghdr_from_user (net/socket.c:2650)
[   14.308109][  T317]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   14.308110][  T317]  ? move_addr_to_kernel (net/socket.c:258)
[   14.308117][  T317]  ___sys_sendmsg (net/socket.c:2767)
[   14.308120][  T317]  ? copy_msghdr_from_user (net/socket.c:2619)
[   14.308136][  T317]  __sys_sendmsg (net/socket.c:2799)
[   14.308138][  T317]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   14.308144][  T317]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.308148][  T317]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   14.308150][  T317]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   14.308154][  T317]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   14.308156][  T317] RIP: 0033:0x7f953c87854e
[   14.308160][  T317] 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
[   14.308161][  T317] RSP: 002b:00007fff0d02c170 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   14.308164][  T317] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f953c87854e
[   14.308165][  T317] RDX: 0000000000000000 RSI: 00007fff0d02c220 RDI: 0000000000000005
[   14.308166][  T317] RBP: 00007fff0d02c180 R08: 0000000000000000 R09: 0000000000000000
[   14.308167][  T317] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90e348
[   14.308168][  T317] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fff0d02c8e0
| [   15.351809][  T355] softirqs last disabled at (19776): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   15.351811][  T355] Preemption disabled at:
| [   15.351812][  T355] vprintk_emit (kernel/printk/printk.c:2471)
| [   15.351821][  T355] Tainted: [W]=WARN
[   15.351822][  T355] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.351824][  T355] Call Trace:
[   15.351826][  T355]  <TASK>
[   15.351828][  T355]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   15.351834][  T355]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   15.351836][  T355]  __might_resched.cold (kernel/sched/core.c:9234)
[   15.351841][  T355]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   15.351846][  T355]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   15.351851][  T355]  __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))
[   15.351854][  T355]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   15.351859][  T355]  ? 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)
[   15.351862][  T355]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   15.351865][  T355]  put_chars (drivers/char/virtio_console.c:1176)
[   15.351867][  T355]  ? prb_final_commit (kernel/printk/printk_ringbuffer.c:1842)
[   15.351870][  T355]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   15.351873][  T355]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   15.351877][  T355]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   15.351880][  T355]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   15.351883][  T355]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   15.351886][  T355]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   15.351888][  T355]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.351889][  T355]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.351893][  T355]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   15.351895][  T355]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   15.351899][  T355]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.351901][  T355]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   15.351905][  T355]  console_emit_next_record (kernel/printk/printk.c:3183)
[   15.351909][  T355]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   15.351911][  T355]  ? 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))
[   15.351914][  T355]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.351917][  T355]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   15.351921][  T355]  console_flush_one_record (kernel/printk/printk.c:3268)
[   15.351925][  T355]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   15.351927][  T355]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.351932][  T355]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   15.351935][  T355]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   15.351937][  T355]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.351939][  T355]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   15.351943][  T355]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   15.351945][  T355]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   15.351948][  T355]  vprintk_emit (kernel/printk/printk.c:2479)
[   15.351952][  T355]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   15.351955][  T355]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   15.351958][  T355]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   15.351961][  T355]  _printk (kernel/printk/printk.c:2504)
[   15.351965][  T355]  ? snapshot_read.cold (user.c:?)
[   15.351969][  T355]  ? br_multicast_flood (??:?) bridge
[   15.351982][  T355]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   15.351984][  T355]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   15.351985][  T355]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   15.351990][  T355] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   15.352001][  T355] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   15.352009][  T355] new_nbp (net/bridge/br_if.c:449) bridge
[   15.352019][  T355] br_add_if (net/bridge/br_if.c:592) bridge
[   15.352026][  T355]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   15.352030][  T355]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   15.352033][  T355]  ? __kernel_text_address (kernel/extable.c:79)
[   15.352037][  T355]  do_set_master (net/core/rtnetlink.c:3071)
[   15.352042][  T355]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   15.352045][  T355]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   15.352048][  T355]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   15.352049][  T355]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   15.352051][  T355]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   15.352055][  T355]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   15.352057][  T355]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   15.352059][  T355]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   15.352062][  T355]  ? kasan_save_stack (mm/kasan/common.c:58)
[   15.352065][  T355]  ? kasan_save_stack (mm/kasan/common.c:57)
[   15.352071][  T355]  ? kasan_save_track (mm/kasan/common.c:78)
[   15.352074][  T355]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.352076][  T355]  ? netlink_seq_next (net/netlink/af_netlink.c:2685)
[   15.352079][  T355]  ? ___sys_sendmsg (net/socket.c:2757)
[   15.352084][  T355]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   15.352086][  T355]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   15.352088][  T355]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.352091][  T355]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   15.352092][  T355]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.352094][  T355]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.352096][  T355]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   15.352100][  T355]  ? __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)
[   15.352103][  T355]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   15.352105][  T355]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   15.352109][  T355]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   15.352111][  T355]  ? nla_get_range_signed (lib/nlattr.c:270)
[   15.352116][  T355]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   15.352121][  T355]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   15.352126][  T355]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   15.352128][  T355]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.352133][  T355]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   15.352135][  T355]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   15.352137][  T355]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   15.352139][  T355]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   15.352142][  T355]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   15.352144][  T355]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   15.352148][  T355]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   15.352149][  T355]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.352153][  T355]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   15.352155][  T355]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   15.352159][  T355]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   15.352161][  T355]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   15.352163][  T355]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   15.352170][  T355]  ? 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))
[   15.352171][  T355]  ? 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))
[   15.352175][  T355]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   15.352179][  T355]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   15.352182][  T355]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.352186][  T355]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   15.352190][  T355]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   15.352193][  T355]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   15.352199][  T355]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   15.352201][  T355]  ? copy_msghdr_from_user (net/socket.c:2650)
[   15.352203][  T355]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   15.352205][  T355]  ? move_addr_to_kernel (net/socket.c:258)
[   15.352212][  T355]  ___sys_sendmsg (net/socket.c:2767)
[   15.352215][  T355]  ? copy_msghdr_from_user (net/socket.c:2619)
[   15.352231][  T355]  __sys_sendmsg (net/socket.c:2799)
[   15.352234][  T355]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   15.352240][  T355]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.352244][  T355]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   15.352246][  T355]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   15.352250][  T355]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   15.352252][  T355] RIP: 0033:0x7f77d9b3654e
[   15.352256][  T355] 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
[   15.352257][  T355] RSP: 002b:00007ffe86832030 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   15.352260][  T355] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f77d9b3654e
[   15.352261][  T355] RDX: 0000000000000000 RSI: 00007ffe868320e0 RDI: 0000000000000005
[   15.352262][  T355] RBP: 00007ffe86832040 R08: 0000000000000000 R09: 0000000000000000
[   15.352263][  T355] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90e349
[   15.352264][  T355] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffe868327a0
| [   23.035795][  T444] softirqs last disabled at (15613): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   23.035798][  T444] Preemption disabled at:
| [   23.035798][  T444] vprintk_emit (kernel/printk/printk.c:2471)
| [   23.035808][  T444] Tainted: [W]=WARN
[   23.035808][  T444] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   23.035810][  T444] Call Trace:
[   23.035812][  T444]  <TASK>
[   23.035813][  T444]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   23.035819][  T444]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   23.035821][  T444]  __might_resched.cold (kernel/sched/core.c:9234)
[   23.035826][  T444]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   23.035830][  T444]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   23.035835][  T444]  __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))
[   23.035837][  T444]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   23.035843][  T444]  ? 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)
[   23.035845][  T444]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   23.035848][  T444]  put_chars (drivers/char/virtio_console.c:1176)
[   23.035850][  T444]  ? desc_read_finalized_seq (kernel/printk/printk_ringbuffer.c:1934)
[   23.035852][  T444]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   23.035856][  T444]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   23.035859][  T444]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   23.035863][  T444]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   23.035866][  T444]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   23.035867][  T444]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   23.035872][  T444]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   23.035873][  T444]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   23.035876][  T444]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   23.035879][  T444]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   23.035883][  T444]  console_emit_next_record (kernel/printk/printk.c:3183)
[   23.035887][  T444]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   23.035889][  T444]  ? 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))
[   23.035892][  T444]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   23.035894][  T444]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   23.035898][  T444]  console_flush_one_record (kernel/printk/printk.c:3268)
[   23.035902][  T444]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   23.035904][  T444]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   23.035909][  T444]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   23.035912][  T444]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   23.035914][  T444]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   23.035916][  T444]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   23.035920][  T444]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   23.035921][  T444]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   23.035925][  T444]  vprintk_emit (kernel/printk/printk.c:2479)
[   23.035929][  T444]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   23.035935][  T444]  ? llc_exit (./arch/x86/include/asm/atomic.h:28 ./include/linux/atomic/atomic-arch-fallback.h:503 ./include/linux/atomic/atomic-instrumented.h:68 ./include/linux/refcount.h:134 net/llc/llc_core.c:38 net/llc/llc_core.c:96) llc
[   23.035938][  T444]  _printk (kernel/printk/printk.c:2504)
[   23.035942][  T444]  ? snapshot_read.cold (user.c:?)
[   23.035948][  T444]  ? 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)
[   23.035951][  T444] gact_init_module (net/sched/act_gact.c:180) act_gact
[   23.035954][  T444]  do_one_initcall (init/main.c:1357)
[   23.035957][  T444]  ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10)
[   23.035961][  T444]  ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1))
[   23.035965][  T444]  ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178)
[   23.035969][  T444]  do_init_module (kernel/module/main.c:3117)
[   23.035973][  T444]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   23.035977][  T444]  ? free_module (./include/trace/events/module.h:50 (discriminator 19))
[   23.035980][  T444]  ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792)
[   23.035984][  T444]  load_module (kernel/module/main.c:3593)
[   23.035992][  T444]  ? layout_and_allocate.isra.0 (kernel/module/main.c:3016)
[   23.035996][  T444]  ? __ia32_sys_fsconfig (??:?)
[   23.036000][  T444]  ? ovl_real_file (fs/overlayfs/file.c:195)
[   23.036004][  T444]  ? backing_file_read_iter (fs/backing-file.c:211)
[   23.036007][  T444]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   23.036011][  T444]  init_module_from_file (kernel/module/main.c:3790)
[   23.036014][  T444]  ? __do_sys_init_module (kernel/module/main.c:3664)
[   23.036022][  T444]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   23.036026][  T444]  ? 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)
[   23.036029][  T444]  idempotent_init_module (kernel/module/main.c:3802)
[   23.036032][  T444]  ? init_module_from_file (kernel/module/main.c:3791)
[   23.036039][  T444]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   23.036041][  T444]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   23.036047][  T444]  __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812)
[   23.036049][  T444]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   23.036053][  T444]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   23.036054][  T444]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   23.036057][  T444]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   23.036059][  T444] RIP: 0033:0x7f2da0f5737d
[   23.036063][  T444] 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
[   23.036065][  T444] RSP: 002b:00007ffe48a65928 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[   23.036067][  T444] RAX: ffffffffffffffda RBX: 000055ece0962810 RCX: 00007f2da0f5737d
[   23.036069][  T444] RDX: 0000000000000000 RSI: 000055ecdf8c3ffd RDI: 0000000000000000
[   23.036070][  T444] RBP: 00007ffe48a659c0 R08: 0000000000000000 R09: 0000000000000000
[   23.036071][  T444] R10: 0000000000000000 R11: 0000000000000246 R12: 000055ecdf8c3ffd
[   23.036072][  T444] R13: 000055ece0962960 R14: 0000000000040000 R15: 0000000000000000
| [   28.038891][    C0] softirqs last disabled at (780905): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   28.038893][    C0] Preemption disabled at:
| [   28.038893][    C0] schedule_preempt_disabled (kernel/sched/core.c:7420)
| [   28.038903][    C0] Tainted: [W]=WARN
[   28.038904][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   28.038906][    C0] Call Trace:
[   28.038908][    C0]  <IRQ>
[   28.038909][    C0]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   28.038915][    C0]  ? schedule_preempt_disabled (kernel/sched/core.c:7420)
[   28.038916][    C0]  __might_resched.cold (kernel/sched/core.c:9234)
[   28.038920][    C0]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   28.038923][    C0]  ? __asan_memcpy (mm/kasan/shadow.c:106 (discriminator 1))
[   28.038925][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.038929][    C0]  __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))
[   28.038932][    C0]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   28.038935][    C0]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   28.038938][    C0]  ? 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)
[   28.038940][    C0]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   28.038942][    C0]  put_chars (drivers/char/virtio_console.c:1176)
[   28.038944][    C0]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   28.038946][    C0]  ? console_prepend_replay (kernel/printk/printk.c:3005)
[   28.038949][    C0]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   28.038952][    C0]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   28.038954][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.038955][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   28.038958][    C0]  console_emit_next_record (kernel/printk/printk.c:3183)
[   28.038960][    C0]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   28.038962][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.038964][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.038965][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   28.038967][    C0]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   28.038969][    C0]  console_flush_one_record (kernel/printk/printk.c:3268)
[   28.038971][    C0]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   28.038974][    C0]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   28.038976][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   28.038977][    C0]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   28.038979][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.038980][    C0]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   28.038982][    C0]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   28.038984][    C0]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   28.038986][    C0]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   28.038988][    C0]  vprintk_emit (kernel/printk/printk.c:2479)
[   28.038990][    C0]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   28.038992][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.038994][    C0]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   28.038995][    C0]  ? x86_64_start_kernel (arch/x86/kernel/head64.c:264)
[   28.039000][    C0]  _printk (kernel/printk/printk.c:2504)
[   28.039003][    C0]  ? snapshot_read.cold (user.c:?)
[   28.039005][    C0]  ? arch_stack_walk (arch/x86/kernel/stacktrace.c:25)
[   28.039009][    C0]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   28.039011][    C0]  ? nbcon_cpu_emergency_enter (./include/linux/instrumented.h:112 ./include/linux/atomic/atomic-instrumented.h:435 kernel/printk/nbcon.c:1723)
[   28.039013][    C0]  print_irq_inversion_bug.part.0 (kernel/locking/lockdep.c:4097 (discriminator 1))
[   28.039015][    C0]  mark_lock_irq (kernel/locking/lockdep.c:4095 kernel/locking/lockdep.c:4174 kernel/locking/lockdep.c:4310)
[   28.039018][    C0]  mark_lock (kernel/locking/lockdep.c:4769)
[   28.039020][    C0]  mark_usage (kernel/locking/lockdep.c:4658)
[   28.039021][    C0]  __lock_acquire (kernel/locking/lockdep.c:5208)
[   28.039024][    C0]  lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   28.039025][    C0]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   28.039038][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.039040][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   28.039041][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   28.039048][    C0]  _raw_spin_lock (./include/linux/spinlock_api_smp.h:190 (discriminator 1) kernel/locking/spinlock.c:173 (discriminator 1))
[   28.039049][    C0]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   28.039055][    C0] br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   28.039061][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   28.039067][    C0]  call_timer_fn (kernel/time/timer.c:1748)
[   28.039071][    C0]  ? detach_if_pending (./include/linux/list.h:1159)
[   28.039072][    C0]  ? debug_object_active_state (lib/debugobjects.c:1122)
[   28.039076][    C0]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   28.039077][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   28.039079][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.039081][    C0]  __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2374)
[   28.039083][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   28.039089][    C0]  ? __bpf_trace_itimer_expire (./include/trace/events/timer.h:407)
[   28.039091][    C0]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   28.039094][    C0]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   28.039096][    C0]  run_timer_softirq (kernel/time/timer.c:2386 kernel/time/timer.c:2395 kernel/time/timer.c:2403)
[   28.039098][    C0]  ? __run_timers (./include/trace/events/timer.h:138 (discriminator 19))
[   28.039100][    C0]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   28.039102][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.039104][    C0]  handle_softirqs (kernel/softirq.c:645)
[   28.039111][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   28.039113][    C0]  ? _local_bh_enable (kernel/softirq.c:428 (discriminator 1))
[   28.039115][    C0]  __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
[   28.039116][    C0]  irq_exit_rcu (kernel/softirq.c:784)
[   28.039118][    C0]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1062 (discriminator 37) arch/x86/kernel/apic/apic.c:1062 (discriminator 37))
[   28.039120][    C0]  </IRQ>
[   28.039121][    C0]  <TASK>
[   28.039121][    C0]  ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4427 (discriminator 2))
[   28.039123][    C0]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:674)
[   28.039125][    C0] RIP: 0010:pv_native_safe_halt (./arch/x86/include/asm/irqflags.h:48 arch/x86/kernel/paravirt.c:63)
[   28.039128][    C0] 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
[   28.039130][    C0] RSP: 0018:ffffffff91a07cf8 EFLAGS: 00000296
[   28.039133][    C0] RAX: 00000000000bea67 RBX: ffffffff91a1c600 RCX: ffffffff8eaf0307
[   28.039135][    C0] RDX: ffffffff91a1c600 RSI: ffffffff91838b1c RDI: ffffffff9128d8e0
[   28.039136][    C0] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[   28.039137][    C0] R10: 0000000000000000 R11: 0000000000000001 R12: 1ffffffff2340fa2
[   28.039137][    C0] R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000014770
[   28.039139][    C0]  ? cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   28.039142][    C0]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   28.039144][    C0]  default_idle (./arch/x86/include/asm/paravirt.h:62 arch/x86/kernel/process.c:768)
[   28.039145][    C0]  default_idle_call (kernel/sched/idle.c:122)
[   28.039147][    C0]  cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   28.039148][    C0]  ? arch_cpu_idle_exit+0x40/0x40
[   28.039150][    C0]  ? mark_tsc_async_resets (arch/x86/kernel/tsc_sync.c:49)
[   28.039152][    C0]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   28.039153][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.039155][    C0]  do_idle (kernel/sched/idle.c:355)
[   28.039157][    C0]  cpu_startup_entry (kernel/sched/idle.c:454)
[   28.039158][    C0]  rest_init (init/main.c:727)
[   28.039160][    C0]  ? __cpuidle_text_end (??:?)
[   28.039163][    C0]  ? rest_init (init/main.c:727)
[   28.039164][    C0]  ? acpi_hw_set_mode (drivers/acpi/acpica/hwacpi.c:72 (discriminator 1))
[   28.039168][    C0]  ? cpus_read_unlock (./include/linux/percpu-rwsem.h:125 (discriminator 1) kernel/cpu.c:502 (discriminator 1))
[   28.039171][    C0]  ? acpi_enable (drivers/acpi/acpica/evxfevnt.c:47)
[   28.039173][    C0]  start_kernel (init/main.c:1185)
[   28.039175][    C0]  x86_64_start_reservations (arch/x86/kernel/head64.c:310)
[   28.039177][    C0]  x86_64_start_kernel (arch/x86/kernel/head64.c:291)
[   28.039179][    C0]  common_startup_64 (arch/x86/kernel/head_64.S:418)
| [   28.108928][    C0]
| [   28.109002][    C0]
| [   28.109002][    C0] stack backtrace:
| [   28.109251][    C0] Tainted: [W]=WARN
[   28.109252][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   28.109253][    C0] Call Trace:
[   28.109254][    C0]  <IRQ>
[   28.109255][    C0]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   28.109260][    C0]  print_irq_inversion_bug.part.0.cold (kernel/locking/lockdep.c:4141)
[   28.109263][    C0]  mark_lock_irq (kernel/locking/lockdep.c:4095 kernel/locking/lockdep.c:4174 kernel/locking/lockdep.c:4310)
[   28.109266][    C0]  mark_lock (kernel/locking/lockdep.c:4769)
[   28.109268][    C0]  mark_usage (kernel/locking/lockdep.c:4658)
[   28.109269][    C0]  __lock_acquire (kernel/locking/lockdep.c:5208)
[   28.109272][    C0]  lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   28.109273][    C0]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   28.109281][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.109284][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   28.109286][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   28.109292][    C0]  _raw_spin_lock (./include/linux/spinlock_api_smp.h:190 (discriminator 1) kernel/locking/spinlock.c:173 (discriminator 1))
[   28.109294][    C0]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   28.109300][    C0] br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   28.109306][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   28.109312][    C0]  call_timer_fn (kernel/time/timer.c:1748)
[   28.109314][    C0]  ? detach_if_pending (./include/linux/list.h:1159)
[   28.109316][    C0]  ? debug_object_active_state (lib/debugobjects.c:1122)
[   28.109320][    C0]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   28.109321][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   28.109323][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.109325][    C0]  __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2374)
[   28.109327][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   28.109334][    C0]  ? __bpf_trace_itimer_expire (./include/trace/events/timer.h:407)
[   28.109335][    C0]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   28.109338][    C0]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   28.109340][    C0]  run_timer_softirq (kernel/time/timer.c:2386 kernel/time/timer.c:2395 kernel/time/timer.c:2403)
[   28.109342][    C0]  ? __run_timers (./include/trace/events/timer.h:138 (discriminator 19))
[   28.109344][    C0]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   28.109346][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.109348][    C0]  handle_softirqs (kernel/softirq.c:645)
[   28.109350][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   28.109352][    C0]  ? _local_bh_enable (kernel/softirq.c:428 (discriminator 1))
[   28.109354][    C0]  __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
[   28.109355][    C0]  irq_exit_rcu (kernel/softirq.c:784)
[   28.109357][    C0]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1062 (discriminator 37) arch/x86/kernel/apic/apic.c:1062 (discriminator 37))
[   28.109358][    C0]  </IRQ>
[   28.109359][    C0]  <TASK>
[   28.109360][    C0]  ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4427 (discriminator 2))
[   28.109361][    C0]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:674)
[   28.109363][    C0] RIP: 0010:pv_native_safe_halt (./arch/x86/include/asm/irqflags.h:48 arch/x86/kernel/paravirt.c:63)
[   28.109366][    C0] 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
[   28.109367][    C0] RSP: 0018:ffffffff91a07cf8 EFLAGS: 00000296
[   28.109370][    C0] RAX: 00000000000bea67 RBX: ffffffff91a1c600 RCX: ffffffff8eaf0307
[   28.109371][    C0] RDX: ffffffff91a1c600 RSI: ffffffff91838b1c RDI: ffffffff9128d8e0
[   28.109372][    C0] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[   28.109373][    C0] R10: 0000000000000000 R11: 0000000000000001 R12: 1ffffffff2340fa2
[   28.109374][    C0] R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000014770
[   28.109376][    C0]  ? cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   28.109378][    C0]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   28.109380][    C0]  default_idle (./arch/x86/include/asm/paravirt.h:62 arch/x86/kernel/process.c:768)
[   28.109381][    C0]  default_idle_call (kernel/sched/idle.c:122)
[   28.109383][    C0]  cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   28.109385][    C0]  ? arch_cpu_idle_exit+0x40/0x40
[   28.109386][    C0]  ? mark_tsc_async_resets (arch/x86/kernel/tsc_sync.c:49)
[   28.109389][    C0]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   28.109390][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.109392][    C0]  do_idle (kernel/sched/idle.c:355)
[   28.109393][    C0]  cpu_startup_entry (kernel/sched/idle.c:454)
[   28.109395][    C0]  rest_init (init/main.c:727)
[   28.109397][    C0]  ? __cpuidle_text_end (??:?)
[   28.109399][    C0]  ? rest_init (init/main.c:727)
[   28.109401][    C0]  ? acpi_hw_set_mode (drivers/acpi/acpica/hwacpi.c:72 (discriminator 1))
[   28.109405][    C0]  ? cpus_read_unlock (./include/linux/percpu-rwsem.h:125 (discriminator 1) kernel/cpu.c:502 (discriminator 1))
[   28.109408][    C0]  ? acpi_enable (drivers/acpi/acpica/evxfevnt.c:47)
[   28.109410][    C0]  start_kernel (init/main.c:1185)
[   28.109412][    C0]  x86_64_start_reservations (arch/x86/kernel/head64.c:310)
[   28.109414][    C0]  x86_64_start_kernel (arch/x86/kernel/head64.c:291)
[   28.109415][    C0]  common_startup_64 (arch/x86/kernel/head_64.S:418)
| [   66.481121][   T69] softirqs last disabled at (24650): __fib6_clean_all (./include/linux/spinlock.h:353 net/ipv6/ip6_fib.c:2323)
| [   66.481123][   T69] Preemption disabled at:
| [   66.481124][   T69] vprintk_emit (kernel/printk/printk.c:2471)
| [   66.481135][   T69] Tainted: [W]=WARN
[   66.481136][   T69] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   66.481138][   T69] Workqueue: netns cleanup_net
[   66.481143][   T69] Call Trace:
[   66.481145][   T69]  <TASK>
[   66.481146][   T69]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   66.481151][   T69]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   66.481153][   T69]  __might_resched.cold (kernel/sched/core.c:9234)
[   66.481156][   T69]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   66.481159][   T69]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   66.481163][   T69]  __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))
[   66.481166][   T69]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   66.481169][   T69]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   66.481173][   T69]  ? 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)
[   66.481174][   T69]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   66.481176][   T69]  put_chars (drivers/char/virtio_console.c:1176)
[   66.481178][   T69]  ? desc_read_finalized_seq (kernel/printk/printk_ringbuffer.c:1934)
[   66.481179][   T69]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   66.481181][   T69]  ? console_prepend_replay (kernel/printk/printk.c:3005)
[   66.481184][   T69]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   66.481187][   T69]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   66.481188][   T69]  ? 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)
[   66.481190][   T69]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   66.481191][   T69]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   66.481193][   T69]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   66.481194][   T69]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   66.481196][   T69]  console_emit_next_record (kernel/printk/printk.c:3183)
[   66.481199][   T69]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   66.481201][   T69]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   66.481203][   T69]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   66.481204][   T69]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   66.481206][   T69]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   66.481208][   T69]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   66.481209][   T69]  console_flush_one_record (kernel/printk/printk.c:3268)
[   66.481211][   T69]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   66.481214][   T69]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   66.481216][   T69]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   66.481217][   T69]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   66.481219][   T69]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   66.481220][   T69]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   66.481229][   T69]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   66.481230][   T69]  ? __rcu_read_lock (kernel/rcu/tree_plugin.h:391 (discriminator 6) kernel/rcu/tree_plugin.h:414 (discriminator 6))
[   66.481232][   T69]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   66.481234][   T69]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   66.481236][   T69]  vprintk_emit (kernel/printk/printk.c:2479)
[   66.481239][   T69]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   66.481240][   T69]  ? process_one_work (kernel/workqueue.c:3387)
[   66.481243][   T69]  ? kthread (kernel/kthread.c:436)
[   66.481245][   T69]  ? ret_from_fork (arch/x86/kernel/process.c:158)
[   66.481247][   T69]  ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
[   66.481250][   T69]  _printk (kernel/printk/printk.c:2504)
[   66.481253][   T69]  ? snapshot_read.cold (user.c:?)
[   66.481255][   T69]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   66.481258][   T69]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   66.481259][   T69]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   66.481261][   T69]  ? netdev_notice (net/core/dev.c:13194)
[   66.481263][   T69]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   66.481265][   T69]  ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1))
[   66.481266][   T69]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:78)
[   66.481269][   T69]  ? down_write_nested (kernel/locking/rwsem.c:1759)
[   66.481270][   T69]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   66.481272][   T69]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[   66.481275][   T69]  dev_set_allmulti (net/core/dev_api.c:315)
[   66.481278][   T69] del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341) bridge
[   66.481291][   T69] br_dev_delete (net/bridge/br_if.c:387) bridge
[   66.481298][   T69] br_net_exit_rtnl (net/bridge/br.c:414) bridge
[   66.481305][   T69]  ops_undo_list (net/core/net_namespace.c:181 net/core/net_namespace.c:249)
[   66.481308][   T69]  ? rtnl_net_dumpid_one (net/core/net_namespace.c:1098)
[   66.481309][   T69]  ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563)
[   66.481313][   T69]  cleanup_net (net/core/net_namespace.c:706)
[   66.481314][   T69]  ? net_passive_dec (./include/linux/llist.h:241)
[   66.481316][   T69]  ? update_load_avg (kernel/sched/fair.c:5864)
[   66.481318][   T69]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   66.481320][   T69]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   66.481322][   T69]  process_one_work (kernel/workqueue.c:3387)
[   66.481325][   T69]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[   66.481327][   T69]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   66.481329][   T69]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   66.481332][   T69]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   66.481333][   T69]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   66.481335][   T69]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   66.481337][   T69]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   66.481338][   T69]  kthread (kernel/kthread.c:436)
[   66.481340][   T69]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   66.481341][   T69]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   66.481343][   T69]  ret_from_fork (arch/x86/kernel/process.c:158)
[   66.481344][   T69]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[   66.481346][   T69]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   66.481349][   T69]  ? kthread_affine_preferred (kernel/kthread.c:857)


Finger prints:
mark_lock_irq:mark_lock:mark_usage:__lock_acquire:_raw_spin_lock
__irq_exit_rcu:schedule_preempt_disabled:dump_stack_lvl:__kmalloc_noprof:put_chars
__irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print
__alloc_skb:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars
__fib6_clean_all:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars
__irq_exit_rcu:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars