======================================
| [    9.546590][  T188] softirqs last disabled at (30967): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [    9.546593][  T188] Preemption disabled at:
| [    9.546593][  T188] 0x0
| [    9.546604][  T188] Tainted: [W]=WARN
[    9.546605][  T188] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.546606][  T188] Call Trace:
[    9.546608][  T188]  <TASK>
[    9.546609][  T188]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[    9.546615][  T188]  __might_resched.cold (kernel/sched/core.c:9234)
[    9.546620][  T188]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[    9.546624][  T188]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[    9.546630][  T188]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[    9.546632][  T188]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[    9.546638][  T188]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[    9.546641][  T188]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[    9.546644][  T188]  put_chars (drivers/char/virtio_console.c:1176)
[    9.546646][  T188]  ? __send_to_port (drivers/char/virtio_console.c:654)
[    9.546648][  T188]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[    9.546652][  T188]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[    9.546657][  T188]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[    9.546664][  T188]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[    9.546666][  T188]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.546668][  T188]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[    9.546672][  T188]  console_emit_next_record (kernel/printk/printk.c:3183)
[    9.546676][  T188]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[    9.546678][  T188]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[    9.546681][  T188]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.546683][  T188]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[    9.546687][  T188]  console_flush_one_record (kernel/printk/printk.c:3268)
[    9.546691][  T188]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[    9.546693][  T188]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[    9.546698][  T188]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[    9.546701][  T188]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[    9.546702][  T188]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.546705][  T188]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[    9.546708][  T188]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[    9.546710][  T188]  ? vprintk_emit (kernel/printk/printk.c:2478)
[    9.546713][  T188]  vprintk_emit (kernel/printk/printk.c:2479)
[    9.546717][  T188]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[    9.546720][  T188]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[    9.546724][  T188]  _printk (kernel/printk/printk.c:2504)
[    9.546728][  T188]  ? snapshot_read.cold (user.c:?)
[    9.546731][  T188]  ? do_raw_spin_lock (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:1301 ./include/asm-generic/qspinlock.h:112 kernel/locking/spinlock_debug.c:116)
[    9.546733][  T188]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[    9.546737][  T188]  ? do_raw_spin_lock (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:1301 ./include/asm-generic/qspinlock.h:112 kernel/locking/spinlock_debug.c:116)
[    9.546739][  T188]  do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4))
[    9.546743][  T188]  ? exit_notify (kernel/exit.c:780)
[    9.546745][  T188]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[    9.546748][  T188]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.546752][  T188]  do_group_exit (kernel/exit.c:1151)
[    9.546755][  T188]  __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160)
[    9.546756][  T188]  x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232)
[    9.546759][  T188]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[    9.546762][  T188]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[    9.546765][  T188]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.546767][  T188] RIP: 0033:0x7f5e3545b1b8
[    9.546769][  T188] Code: Unable to access opcode bytes at 0x7f5e3545b18e.

Code starting with the faulting instruction
===========================================
[    9.546771][  T188] RSP: 002b:00007ffda3b56b88 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[    9.546773][  T188] RAX: ffffffffffffffda RBX: 00007f5e3558bf88 RCX: 00007f5e3545b1b8
[    9.546774][  T188] RDX: 00007f5e351a5fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000
[    9.546775][  T188] RBP: 00007ffda3b56be0 R08: 0000000000000000 R09: 0000000000008010
[    9.546776][  T188] R10: 00007ffda3b569a0 R11: 0000000000000246 R12: 0000000000000001
[    9.546777][  T188] R13: 0000000000000000 R14: 00007f5e3558a680 R15: 00007f5e3558bfa0
| [   11.104404][  T251] softirqs last disabled at (19487): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   11.104407][  T251] Preemption disabled at:
| [   11.104407][  T251] vprintk_emit (kernel/printk/printk.c:2471)
| [   11.104417][  T251] Tainted: [W]=WARN
[   11.104418][  T251] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.104420][  T251] Call Trace:
[   11.104421][  T251]  <TASK>
[   11.104423][  T251]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   11.104429][  T251]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   11.104431][  T251]  __might_resched.cold (kernel/sched/core.c:9234)
[   11.104435][  T251]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   11.104439][  T251]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   11.104445][  T251]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   11.104447][  T251]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.104453][  T251]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   11.104455][  T251]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.104458][  T251]  put_chars (drivers/char/virtio_console.c:1176)
[   11.104461][  T251]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   11.104466][  T251]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   11.104469][  T251]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   11.104472][  T251]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   11.104474][  T251]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.104475][  T251]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.104479][  T251]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   11.104481][  T251]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   11.104484][  T251]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.104489][  T251]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.104497][  T251]  console_emit_next_record (kernel/printk/printk.c:3183)
[   11.104500][  T251]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   11.104502][  T251]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   11.104505][  T251]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.104508][  T251]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.104512][  T251]  console_flush_one_record (kernel/printk/printk.c:3268)
[   11.104516][  T251]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   11.104518][  T251]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.104523][  T251]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   11.104526][  T251]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   11.104527][  T251]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.104530][  T251]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   11.104533][  T251]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   11.104535][  T251]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   11.104539][  T251]  vprintk_emit (kernel/printk/printk.c:2479)
[   11.104543][  T251]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   11.104545][  T251]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.104547][  T251]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   11.104551][  T251]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   11.104554][  T251]  _printk (kernel/printk/printk.c:2504)
[   11.104558][  T251]  ? snapshot_read.cold (user.c:?)
[   11.104562][  T251]  ? br_multicast_flood (??:?) bridge
[   11.104574][  T251]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   11.104576][  T251]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   11.104577][  T251]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   11.104581][  T251] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   11.104591][  T251] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   11.104599][  T251] new_nbp (net/bridge/br_if.c:449) bridge
[   11.104608][  T251] br_add_if (net/bridge/br_if.c:592) bridge
[   11.104615][  T251]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   11.104619][  T251]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   11.104622][  T251]  ? __kernel_text_address (kernel/extable.c:79)
[   11.104626][  T251]  do_set_master (net/core/rtnetlink.c:3071)
[   11.104631][  T251]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   11.104634][  T251]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   11.104637][  T251]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   11.104638][  T251]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   11.104640][  T251]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   11.104644][  T251]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   11.104647][  T251]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   11.104648][  T251]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   11.104651][  T251]  ? kasan_save_stack (mm/kasan/common.c:58)
[   11.104654][  T251]  ? kasan_save_stack (mm/kasan/common.c:57)
[   11.104655][  T251]  ? kasan_save_track (mm/kasan/common.c:78)
[   11.104658][  T251]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.104660][  T251]  ? netlink_seq_next (net/netlink/af_netlink.c:2684)
[   11.104663][  T251]  ? ___sys_sendmsg (net/socket.c:2757)
[   11.104668][  T251]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.104670][  T251]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   11.104672][  T251]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.104675][  T251]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.104676][  T251]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.104678][  T251]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.104680][  T251]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   11.104684][  T251]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   11.104686][  T251]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   11.104688][  T251]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   11.104691][  T251]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   11.104693][  T251]  ? nla_get_range_signed (lib/nlattr.c:270)
[   11.104698][  T251]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   11.104703][  T251]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   11.104708][  T251]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.104710][  T251]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.104714][  T251]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.104716][  T251]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   11.104718][  T251]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.104720][  T251]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.104723][  T251]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.104725][  T251]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   11.104728][  T251]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.104729][  T251]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.104734][  T251]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.104736][  T251]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   11.104739][  T251]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   11.104741][  T251]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.104744][  T251]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   11.104749][  T251]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   11.104751][  T251]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   11.104755][  T251]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   11.104759][  T251]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   11.104761][  T251]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.104765][  T251]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   11.104769][  T251]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   11.104773][  T251]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   11.104778][  T251]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   11.104780][  T251]  ? copy_msghdr_from_user (net/socket.c:2650)
[   11.104782][  T251]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   11.104784][  T251]  ? move_addr_to_kernel (net/socket.c:258)
[   11.104791][  T251]  ___sys_sendmsg (net/socket.c:2767)
[   11.104794][  T251]  ? copy_msghdr_from_user (net/socket.c:2619)
[   11.104811][  T251]  __sys_sendmsg (net/socket.c:2799)
[   11.104813][  T251]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   11.104820][  T251]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.104824][  T251]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   11.104826][  T251]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   11.104829][  T251]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.104831][  T251] RIP: 0033:0x7fa8ce31254e
[   11.104834][  T251] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   11.104836][  T251] RSP: 002b:00007ffc6d74b4d0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   11.104839][  T251] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fa8ce31254e
[   11.104840][  T251] RDX: 0000000000000000 RSI: 00007ffc6d74b580 RDI: 0000000000000005
[   11.104841][  T251] RBP: 00007ffc6d74b4e0 R08: 0000000000000000 R09: 0000000000000000
[   11.104842][  T251] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a918b49
[   11.104843][  T251] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffc6d74bc40
| [   26.483127][    C1] softirqs last disabled at (579291): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   26.483129][    C1] Preemption disabled at:
| [   26.483130][    C1] 0x0
| [   26.483144][    C1] Tainted: [W]=WARN
[   26.483145][    C1] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   26.483147][    C1] Call Trace:
[   26.483149][    C1]  <IRQ>
[   26.483152][    C1]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   26.483159][    C1]  __might_resched.cold (kernel/sched/core.c:9234)
[   26.483163][    C1]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   26.483167][    C1]  ? __asan_memcpy (mm/kasan/shadow.c:106 (discriminator 1))
[   26.483171][    C1]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.483176][    C1]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   26.483180][    C1]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   26.483184][    C1]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   26.483188][    C1]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   26.483190][    C1]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   26.483193][    C1]  put_chars (drivers/char/virtio_console.c:1176)
[   26.483196][    C1]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   26.483199][    C1]  ? console_prepend_replay (kernel/printk/printk.c:3005)
[   26.483203][    C1]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   26.483207][    C1]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   26.483209][    C1]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.483212][    C1]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   26.483215][    C1]  console_emit_next_record (kernel/printk/printk.c:3183)
[   26.483219][    C1]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   26.483221][    C1]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.483224][    C1]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.483226][    C1]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   26.483229][    C1]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   26.483231][    C1]  console_flush_one_record (kernel/printk/printk.c:3268)
[   26.483234][    C1]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   26.483238][    C1]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   26.483241][    C1]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   26.483243][    C1]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   26.483245][    C1]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.483247][    C1]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   26.483249][    C1]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   26.483252][    C1]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   26.483254][    C1]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   26.483257][    C1]  vprintk_emit (kernel/printk/printk.c:2479)
[   26.483260][    C1]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   26.483263][    C1]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   26.483279][    C1]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   26.483281][    C1]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   26.483292][    C1]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   26.483303][    C1]  ? is_module_text_address (./include/linux/rcupdate.h:882 ./include/linux/rcupdate.h:1216 kernel/module/main.c:3934)
[   26.483308][    C1]  _printk (kernel/printk/printk.c:2504)
[   26.483312][    C1]  ? snapshot_read.cold (user.c:?)
[   26.483314][    C1]  ? arch_stack_walk (arch/x86/kernel/stacktrace.c:25)
[   26.483319][    C1]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   26.483322][    C1]  ? nbcon_cpu_emergency_enter (./include/linux/instrumented.h:112 ./include/linux/atomic/atomic-instrumented.h:435 kernel/printk/nbcon.c:1723)
[   26.483325][    C1]  print_irq_inversion_bug.part.0 (kernel/locking/lockdep.c:4097 (discriminator 1))
[   26.483328][    C1]  mark_lock_irq (kernel/locking/lockdep.c:4095 kernel/locking/lockdep.c:4174 kernel/locking/lockdep.c:4310)
[   26.483332][    C1]  mark_lock (kernel/locking/lockdep.c:4769)
[   26.483335][    C1]  mark_usage (kernel/locking/lockdep.c:4658)
[   26.483338][    C1]  __lock_acquire (kernel/locking/lockdep.c:5208)
[   26.483341][    C1]  lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   26.483343][    C1]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   26.483354][    C1]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.483357][    C1]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   26.483360][    C1]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   26.483370][    C1]  _raw_spin_lock (./include/linux/spinlock_api_smp.h:190 (discriminator 1) kernel/locking/spinlock.c:173 (discriminator 1))
[   26.483372][    C1]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   26.483383][    C1] br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   26.483394][    C1]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   26.483405][    C1]  call_timer_fn (kernel/time/timer.c:1748)
[   26.483408][    C1]  ? detach_if_pending (./include/linux/list.h:1159)
[   26.483411][    C1]  ? debug_object_active_state (lib/debugobjects.c:1122)
[   26.483415][    C1]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   26.483418][    C1]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   26.483420][    C1]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.483423][    C1]  __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2374)
[   26.483426][    C1]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   26.483437][    C1]  ? __bpf_trace_itimer_expire (./include/trace/events/timer.h:407)
[   26.483440][    C1]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   26.483444][    C1]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   26.483447][    C1]  run_timer_softirq (kernel/time/timer.c:2386 kernel/time/timer.c:2395 kernel/time/timer.c:2403)
[   26.483450][    C1]  ? __run_timers (./include/trace/events/timer.h:138 (discriminator 19))
[   26.483452][    C1]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   26.483455][    C1]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.483458][    C1]  handle_softirqs (kernel/softirq.c:645)
[   26.483461][    C1]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   26.483463][    C1]  ? _local_bh_enable (kernel/softirq.c:428 (discriminator 1))
[   26.483466][    C1]  __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
[   26.483468][    C1]  irq_exit_rcu (kernel/softirq.c:784)
[   26.483471][    C1]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1062 (discriminator 37) arch/x86/kernel/apic/apic.c:1062 (discriminator 37))
[   26.483474][    C1]  </IRQ>
[   26.483475][    C1]  <TASK>
[   26.483476][    C1]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   26.483478][    C1]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:674)
[   26.483481][    C1] RIP: 0010:pv_native_safe_halt (./arch/x86/include/asm/irqflags.h:48 arch/x86/kernel/paravirt.c:63)
[   26.483485][    C1] Code: 48 8b 3d 94 d2 f5 01 e8 1f 00 00 00 48 2b 05 58 93 95 00 c3 0f 1f 80 00 00 00 00 f3 0f 1e fa eb 07 0f 00 2d 13 86 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 d2 f5 01 	mov    0x1f5d294(%rip),%rdi        # 0x1f5d29b
   7:	e8 1f 00 00 00       	call   0x2b
   c:	48 2b 05 58 93 95 00 	sub    0x959358(%rip),%rax        # 0x95936b
  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 86 11 00 	verw   0x118613(%rip)        # 0x11863b
  28:	fb                   	sti
  29:	f4                   	hlt
  2a:*	c3                   	ret		<-- trapping instruction
  2b:	0f 1f 40 d6          	nopl   -0x2a(%rax)
  2f:	48 83 ec 20          	sub    $0x20,%rsp
  33:	8b 17                	mov    (%rdi),%edx
  35:	49 89 f8             	mov    %rdi,%r8
  38:	83 e2 fe             	and    $0xfffffffe,%edx
  3b:	41 89 d2             	mov    %edx,%r10d
  3e:	0f                   	.byte 0xf
  3f:	01                   	.byte 0x1

Code starting with the faulting instruction
===========================================
   0:	c3                   	ret
   1:	0f 1f 40 d6          	nopl   -0x2a(%rax)
   5:	48 83 ec 20          	sub    $0x20,%rsp
   9:	8b 17                	mov    (%rdi),%edx
   b:	49 89 f8             	mov    %rdi,%r8
   e:	83 e2 fe             	and    $0xfffffffe,%edx
  11:	41 89 d2             	mov    %edx,%r10d
  14:	0f                   	.byte 0xf
  15:	01                   	.byte 0x1
[   26.483487][    C1] RSP: 0018:ffa0000000147e00 EFLAGS: 00000282
[   26.483492][    C1] RAX: 000000000008d6d9 RBX: ff11000001bea380 RCX: ffffffff834f0307
[   26.483493][    C1] RDX: ff11000001bea380 RSI: ffffffff86238af6 RDI: ffffffff85c8d8e0
[   26.483495][    C1] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[   26.483496][    C1] R10: 0000000000000001 R11: 0000000000000001 R12: 1ff4000000028fc3
[   26.483497][    C1] R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000000
[   26.483500][    C1]  ? cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   26.483504][    C1]  default_idle (./arch/x86/include/asm/paravirt.h:62 arch/x86/kernel/process.c:768)
[   26.483507][    C1]  default_idle_call (kernel/sched/idle.c:122)
[   26.483509][    C1]  cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   26.483511][    C1]  ? arch_cpu_idle_exit+0x40/0x40
[   26.483514][    C1]  ? mark_tsc_async_resets (arch/x86/kernel/tsc_sync.c:49)
[   26.483517][    C1]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.483520][    C1]  do_idle (kernel/sched/idle.c:355)
[   26.483522][    C1]  cpu_startup_entry (kernel/sched/idle.c:454)
[   26.483524][    C1]  start_secondary (arch/x86/kernel/smpboot.c:312)
[   26.483527][    C1]  ? set_cpu_sibling_map (arch/x86/kernel/smpboot.c:733 (discriminator 4))
[   26.483530][    C1]  common_startup_64 (arch/x86/kernel/head_64.S:418)
| [   26.562361][    C1]
| [   26.562455][    C1]
| [   26.562455][    C1] stack backtrace:
| [   26.562763][    C1] Tainted: [W]=WARN
[   26.562764][    C1] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   26.562766][    C1] Call Trace:
[   26.562768][    C1]  <IRQ>
[   26.562770][    C1]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   26.562775][    C1]  print_irq_inversion_bug.part.0.cold (kernel/locking/lockdep.c:4141)
[   26.562779][    C1]  mark_lock_irq (kernel/locking/lockdep.c:4095 kernel/locking/lockdep.c:4174 kernel/locking/lockdep.c:4310)
[   26.562783][    C1]  mark_lock (kernel/locking/lockdep.c:4769)
[   26.562786][    C1]  mark_usage (kernel/locking/lockdep.c:4658)
[   26.562788][    C1]  __lock_acquire (kernel/locking/lockdep.c:5208)
[   26.562791][    C1]  lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   26.562794][    C1]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   26.562806][    C1]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.562810][    C1]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   26.562812][    C1]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   26.562822][    C1]  _raw_spin_lock (./include/linux/spinlock_api_smp.h:190 (discriminator 1) kernel/locking/spinlock.c:173 (discriminator 1))
[   26.562825][    C1]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   26.562835][    C1] br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   26.562846][    C1]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   26.562856][    C1]  call_timer_fn (kernel/time/timer.c:1748)
[   26.562860][    C1]  ? detach_if_pending (./include/linux/list.h:1159)
[   26.562862][    C1]  ? debug_object_active_state (lib/debugobjects.c:1122)
[   26.562866][    C1]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   26.562869][    C1]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   26.562871][    C1]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.562875][    C1]  __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2374)
[   26.562877][    C1]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   26.562888][    C1]  ? __bpf_trace_itimer_expire (./include/trace/events/timer.h:407)
[   26.562890][    C1]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   26.562894][    C1]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   26.562898][    C1]  run_timer_softirq (kernel/time/timer.c:2386 kernel/time/timer.c:2395 kernel/time/timer.c:2403)
[   26.562901][    C1]  ? __run_timers (./include/trace/events/timer.h:138 (discriminator 19))
[   26.562903][    C1]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   26.562906][    C1]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.562908][    C1]  handle_softirqs (kernel/softirq.c:645)
[   26.562912][    C1]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   26.562914][    C1]  ? _local_bh_enable (kernel/softirq.c:428 (discriminator 1))
[   26.562917][    C1]  __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
[   26.562919][    C1]  irq_exit_rcu (kernel/softirq.c:784)
[   26.562921][    C1]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1062 (discriminator 37) arch/x86/kernel/apic/apic.c:1062 (discriminator 37))
[   26.562924][    C1]  </IRQ>
[   26.562924][    C1]  <TASK>
[   26.562925][    C1]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   26.562928][    C1]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:674)
[   26.562930][    C1] RIP: 0010:pv_native_safe_halt (./arch/x86/include/asm/irqflags.h:48 arch/x86/kernel/paravirt.c:63)
[   26.562934][    C1] Code: 48 8b 3d 94 d2 f5 01 e8 1f 00 00 00 48 2b 05 58 93 95 00 c3 0f 1f 80 00 00 00 00 f3 0f 1e fa eb 07 0f 00 2d 13 86 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 d2 f5 01 	mov    0x1f5d294(%rip),%rdi        # 0x1f5d29b
   7:	e8 1f 00 00 00       	call   0x2b
   c:	48 2b 05 58 93 95 00 	sub    0x959358(%rip),%rax        # 0x95936b
  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 86 11 00 	verw   0x118613(%rip)        # 0x11863b
  28:	fb                   	sti
  29:	f4                   	hlt
  2a:*	c3                   	ret		<-- trapping instruction
  2b:	0f 1f 40 d6          	nopl   -0x2a(%rax)
  2f:	48 83 ec 20          	sub    $0x20,%rsp
  33:	8b 17                	mov    (%rdi),%edx
  35:	49 89 f8             	mov    %rdi,%r8
  38:	83 e2 fe             	and    $0xfffffffe,%edx
  3b:	41 89 d2             	mov    %edx,%r10d
  3e:	0f                   	.byte 0xf
  3f:	01                   	.byte 0x1

Code starting with the faulting instruction
===========================================
   0:	c3                   	ret
   1:	0f 1f 40 d6          	nopl   -0x2a(%rax)
   5:	48 83 ec 20          	sub    $0x20,%rsp
   9:	8b 17                	mov    (%rdi),%edx
   b:	49 89 f8             	mov    %rdi,%r8
   e:	83 e2 fe             	and    $0xfffffffe,%edx
  11:	41 89 d2             	mov    %edx,%r10d
  14:	0f                   	.byte 0xf
  15:	01                   	.byte 0x1
[   26.562936][    C1] RSP: 0018:ffa0000000147e00 EFLAGS: 00000282
[   26.562939][    C1] RAX: 000000000008d6d9 RBX: ff11000001bea380 RCX: ffffffff834f0307
[   26.562940][    C1] RDX: ff11000001bea380 RSI: ffffffff86238af6 RDI: ffffffff85c8d8e0
[   26.562942][    C1] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[   26.562943][    C1] R10: 0000000000000001 R11: 0000000000000001 R12: 1ff4000000028fc3
[   26.562945][    C1] R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000000
[   26.562947][    C1]  ? cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   26.562950][    C1]  default_idle (./arch/x86/include/asm/paravirt.h:62 arch/x86/kernel/process.c:768)
[   26.562952][    C1]  default_idle_call (kernel/sched/idle.c:122)
[   26.562955][    C1]  cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   26.562957][    C1]  ? arch_cpu_idle_exit+0x40/0x40
[   26.562959][    C1]  ? mark_tsc_async_resets (arch/x86/kernel/tsc_sync.c:49)
[   26.562962][    C1]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.562964][    C1]  do_idle (kernel/sched/idle.c:355)
[   26.562967][    C1]  cpu_startup_entry (kernel/sched/idle.c:454)
[   26.562969][    C1]  start_secondary (arch/x86/kernel/smpboot.c:312)
[   26.562971][    C1]  ? set_cpu_sibling_map (arch/x86/kernel/smpboot.c:733 (discriminator 4))
[   26.562974][    C1]  common_startup_64 (arch/x86/kernel/head_64.S:418)
| [   37.918687][  T350] softirqs last disabled at (0): 0x0
| [   37.918689][  T350] Preemption disabled at:
| [   37.918689][  T350] 0x0
| [   37.918697][  T350] Tainted: [W]=WARN
[   37.918698][  T350] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   37.918700][  T350] Call Trace:
[   37.918701][  T350]  <TASK>
[   37.918702][  T350]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   37.918708][  T350]  __might_resched.cold (kernel/sched/core.c:9234)
[   37.918712][  T350]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   37.918715][  T350]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.918719][  T350]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   37.918723][  T350]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   37.918726][  T350]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   37.918730][  T350]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   37.918731][  T350]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   37.918733][  T350]  put_chars (drivers/char/virtio_console.c:1176)
[   37.918735][  T350]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   37.918737][  T350]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   37.918740][  T350]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   37.918744][  T350]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   37.918746][  T350]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   37.918747][  T350]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.918749][  T350]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   37.918751][  T350]  console_emit_next_record (kernel/printk/printk.c:3183)
[   37.918754][  T350]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   37.918755][  T350]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.918757][  T350]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.918759][  T350]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.918760][  T350]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   37.918762][  T350]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   37.918764][  T350]  console_flush_one_record (kernel/printk/printk.c:3268)
[   37.918766][  T350]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   37.918769][  T350]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   37.918770][  T350]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   37.918772][  T350]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   37.918773][  T350]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.918775][  T350]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   37.918776][  T350]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   37.918778][  T350]  ? __rcu_read_lock (kernel/rcu/tree_plugin.h:391 (discriminator 6) kernel/rcu/tree_plugin.h:414 (discriminator 6))
[   37.918780][  T350]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   37.918782][  T350]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   37.918784][  T350]  vprintk_emit (kernel/printk/printk.c:2479)
[   37.918786][  T350]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   37.918788][  T350]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.918789][  T350]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   37.918792][  T350]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:78)
[   37.918793][  T350]  _printk (kernel/printk/printk.c:2504)
[   37.918796][  T350]  ? snapshot_read.cold (user.c:?)
[   37.918799][  T350]  ? ipv6_mc_down (net/ipv6/mcast.c:1157 net/ipv6/mcast.c:2820)
[   37.918803][  T350] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   37.918816][  T350] br_stp_disable_port (net/bridge/br_stp_if.c:106) bridge
[   37.918824][  T350] br_device_event (net/bridge/br.c:111) bridge
[   37.918833][  T350]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   37.918836][  T350]  ? _sub_I_65535_1+0x4d0/0x4d0 stp
[   37.918838][  T350]  ? addrconf_notify (net/ipv6/addrconf.c:3812)
[   37.918841][  T350]  notifier_call_chain (kernel/notifier.c:85)
[   37.918844][  T350]  __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855)
[   37.918848][  T350]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   37.918850][  T350]  ? netif_change_name (net/core/dev.c:1517)
[   37.918852][  T350]  ? netif_set_allmulti (./include/net/netdev_lock.h:30 (discriminator 1))
[   37.918854][  T350]  ? __kernel_text_address (kernel/extable.c:79)
[   37.918856][  T350]  ? write_profile (profile.c:?)
[   37.918858][  T350]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   37.918861][  T350]  netif_change_flags (net/core/dev.c:9882)
[   37.918863][  T350]  do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1))
[   37.918866][  T350]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   37.918867][  T350]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   37.918869][  T350]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.918870][  T350]  ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[   37.918874][  T350]  ? kasan_save_stack (mm/kasan/common.c:58)
[   37.918877][  T350]  ? kasan_save_stack (mm/kasan/common.c:57)
[   37.918879][  T350]  ? kasan_save_track (mm/kasan/common.c:78)
[   37.918880][  T350]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   37.918882][  T350]  ? __kmalloc_cache_noprof (./include/linux/kasan.h:263 mm/slub.c:5563)
[   37.918883][  T350]  ? rtnl_newlink (./include/linux/slab.h:991 (discriminator 1) net/core/rtnetlink.c:4113 (discriminator 1))
[   37.918884][  T350]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   37.918885][  T350]  ? netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   37.918888][  T350]  ? netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   37.918889][  T350]  ? netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   37.918890][  T350]  ? ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   37.918893][  T350]  ? ___sys_sendmsg (net/socket.c:2767)
[   37.918894][  T350]  ? __sys_sendmsg (net/socket.c:2799)
[   37.918896][  T350]  ? do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   37.918898][  T350]  ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   37.918901][  T350]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.918902][  T350]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   37.918904][  T350]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.918906][  T350]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.918907][  T350]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   37.918910][  T350]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   37.918912][  T350]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   37.918913][  T350]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   37.918915][  T350]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   37.918917][  T350]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   37.918919][  T350]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   37.918921][  T350]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.918922][  T350]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   37.918924][  T350]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   37.918925][  T350]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.918927][  T350]  ? is_bpf_text_address (./include/linux/rcupdate.h:850 kernel/bpf/core.c:749)
[   37.918930][  T350]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   37.918932][  T350]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   37.918933][  T350]  ? __kernel_text_address (kernel/extable.c:79)
[   37.918934][  T350]  ? write_profile (profile.c:?)
[   37.918935][  T350]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   37.918937][  T350]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.918938][  T350]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.918940][  T350]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   37.918944][  T350]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   37.918945][  T350]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.918947][  T350]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   37.918948][  T350]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   37.918950][  T350]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   37.918951][  T350]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[   37.918952][  T350]  ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[   37.918955][  T350]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   37.918956][  T350]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   37.918957][  T350]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   37.918959][  T350]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   37.918960][  T350]  ? __netlink_lookup (./include/linux/rcupdate.h:850 ./include/linux/rhashtable.h:709 net/netlink/af_netlink.c:499)
[   37.918962][  T350]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.918964][  T350]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   37.918966][  T350]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   37.918968][  T350]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   37.918970][  T350]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.918971][  T350]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.918973][  T350]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   37.918975][  T350]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   37.918977][  T350]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   37.918979][  T350]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.918980][  T350]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   37.918982][  T350]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   37.918984][  T350]  ? copy_msghdr_from_user (net/socket.c:2650)
[   37.918985][  T350]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   37.918987][  T350]  ? move_addr_to_kernel (net/socket.c:258)
[   37.918988][  T350]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[   37.918991][  T350]  ___sys_sendmsg (net/socket.c:2767)
[   37.918993][  T350]  ? copy_msghdr_from_user (net/socket.c:2619)
[   37.919000][  T350]  __sys_sendmsg (net/socket.c:2799)
[   37.919002][  T350]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   37.919005][  T350]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.919007][  T350]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   37.919008][  T350]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   37.919010][  T350]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   37.919012][  T350] RIP: 0033:0x7f091adaa54e
[   37.919014][  T350] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   37.919016][  T350] RSP: 002b:00007ffe1a4c5b60 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   37.919019][  T350] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f091adaa54e
[   37.919021][  T350] RDX: 0000000000000000 RSI: 00007ffe1a4c5c10 RDI: 0000000000000005
[   37.919022][  T350] RBP: 00007ffe1a4c5b70 R08: 0000000000000000 R09: 0000000000000000
[   37.919023][  T350] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a918b64


Finger prints:
mark_lock_irq:mark_lock:mark_usage:__lock_acquire:_raw_spin_lock
__irq_exit_rcu:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars
__irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print
__kmalloc_noprof:put_chars:hvc_console_print:console_emit_next_record:console_flush_one_record