======================================
| [   10.816780][  T192] softirqs last disabled at (34890): netlink_release (./include/net/sock.h:2138 net/netlink/af_netlink.c:727)
| [   10.816782][  T192] Preemption disabled at:
| [   10.816783][  T192] 0x0
| [   10.816793][  T192] Tainted: [W]=WARN
[   10.816794][  T192] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.816796][  T192] Call Trace:
[   10.816798][  T192]  <TASK>
[   10.816799][  T192]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   10.816805][  T192]  __might_resched.cold (kernel/sched/core.c:9234)
[   10.816810][  T192]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   10.816814][  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)
[   10.816820][  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))
[   10.816822][  T192]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.816828][  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)
[   10.816830][  T192]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.816833][  T192]  put_chars (drivers/char/virtio_console.c:1176)
[   10.816836][  T192]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   10.816838][  T192]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   10.816842][  T192]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   10.816847][  T192]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   10.816854][  T192]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   10.816857][  T192]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.816859][  T192]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.816863][  T192]  console_emit_next_record (kernel/printk/printk.c:3183)
[   10.816867][  T192]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   10.816869][  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))
[   10.816872][  T192]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.816875][  T192]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.816879][  T192]  console_flush_one_record (kernel/printk/printk.c:3268)
[   10.816883][  T192]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   10.816885][  T192]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.816890][  T192]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   10.816893][  T192]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   10.816895][  T192]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.816897][  T192]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   10.816901][  T192]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   10.816903][  T192]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   10.816907][  T192]  vprintk_emit (kernel/printk/printk.c:2479)
[   10.816910][  T192]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   10.816914][  T192]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.816918][  T192]  _printk (kernel/printk/printk.c:2504)
[   10.816921][  T192]  ? snapshot_read.cold (user.c:?)
[   10.816924][  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)
[   10.816927][  T192]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   10.816931][  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)
[   10.816934][  T192]  do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4))
[   10.816937][  T192]  ? exit_notify (kernel/exit.c:780)
[   10.816939][  T192]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   10.816942][  T192]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.816946][  T192]  do_group_exit (kernel/exit.c:1151)
[   10.816949][  T192]  __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160)
[   10.816951][  T192]  x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232)
[   10.816953][  T192]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   10.816956][  T192]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   10.816959][  T192]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.816962][  T192] RIP: 0033:0x7ff88802d1b8
[   10.816964][  T192] Code: Unable to access opcode bytes at 0x7ff88802d18e.

Code starting with the faulting instruction
===========================================
[   10.816965][  T192] RSP: 002b:00007ffd1a6fb838 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[   10.816968][  T192] RAX: ffffffffffffffda RBX: 00007ff88815df88 RCX: 00007ff88802d1b8
[   10.816974][  T192] RDX: 00007ff887d77fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000
[   10.816975][  T192] RBP: 00007ffd1a6fb890 R08: 0000000000000000 R09: 0000000000008010
[   10.816976][  T192] R10: 00007ffd1a6fb650 R11: 0000000000000246 R12: 0000000000000001
[   10.816977][  T192] R13: 0000000000000000 R14: 00007ff88815c680 R15: 00007ff88815dfa0
| [   12.737162][  T260] softirqs last disabled at (27220): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   12.737166][  T260] Preemption disabled at:
| [   12.737167][  T260] vprintk_emit (kernel/printk/printk.c:2471)
| [   12.737179][  T260] Tainted: [W]=WARN
[   12.737181][  T260] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.737183][  T260] Call Trace:
[   12.737185][  T260]  <TASK>
[   12.737187][  T260]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   12.737195][  T260]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   12.737198][  T260]  __might_resched.cold (kernel/sched/core.c:9234)
[   12.737204][  T260]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   12.737210][  T260]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   12.737218][  T260]  __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))
[   12.737221][  T260]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.737230][  T260]  ? 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)
[   12.737234][  T260]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.737239][  T260]  put_chars (drivers/char/virtio_console.c:1176)
[   12.737243][  T260]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   12.737251][  T260]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   12.737257][  T260]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   12.737261][  T260]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   12.737264][  T260]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.737266][  T260]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.737273][  T260]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   12.737277][  T260]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   12.737282][  T260]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.737287][  T260]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.737294][  T260]  console_emit_next_record (kernel/printk/printk.c:3183)
[   12.737300][  T260]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   12.737303][  T260]  ? 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))
[   12.737308][  T260]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.737312][  T260]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.737319][  T260]  console_flush_one_record (kernel/printk/printk.c:3268)
[   12.737326][  T260]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   12.737329][  T260]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.737338][  T260]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   12.737343][  T260]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   12.737345][  T260]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.737349][  T260]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   12.737356][  T260]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   12.737358][  T260]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   12.737364][  T260]  vprintk_emit (kernel/printk/printk.c:2479)
[   12.737372][  T260]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   12.737376][  T260]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   12.737378][  T260]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   12.737384][  T260]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   12.737391][  T260]  _printk (kernel/printk/printk.c:2504)
[   12.737395][  T260]  ? snapshot_read.cold (user.c:?)
[   12.737402][  T260]  ? br_multicast_flood (??:?) bridge
[   12.737421][  T260]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   12.737423][  T260]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   12.737425][  T260]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   12.737433][  T260] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   12.737451][  T260] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   12.737468][  T260] new_nbp (net/bridge/br_if.c:449) bridge
[   12.737484][  T260] br_add_if (net/bridge/br_if.c:592) bridge
[   12.737497][  T260]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   12.737502][  T260]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   12.737507][  T260]  ? __kernel_text_address (kernel/extable.c:79)
[   12.737514][  T260]  do_set_master (net/core/rtnetlink.c:3071)
[   12.737522][  T260]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   12.737527][  T260]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   12.737532][  T260]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   12.737534][  T260]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   12.737538][  T260]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   12.737542][  T260]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   12.737546][  T260]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   12.737549][  T260]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   12.737554][  T260]  ? kasan_save_stack (mm/kasan/common.c:58)
[   12.737558][  T260]  ? kasan_save_stack (mm/kasan/common.c:57)
[   12.737561][  T260]  ? kasan_save_track (mm/kasan/common.c:78)
[   12.737565][  T260]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.737568][  T260]  ? netlink_seq_next (net/netlink/af_netlink.c:2684)
[   12.737573][  T260]  ? ___sys_sendmsg (net/socket.c:2757)
[   12.737580][  T260]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.737583][  T260]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   12.737587][  T260]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.737591][  T260]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.737593][  T260]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.737596][  T260]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.737600][  T260]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   12.737605][  T260]  ? __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)
[   12.737608][  T260]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   12.737611][  T260]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   12.737618][  T260]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   12.737620][  T260]  ? nla_get_range_signed (lib/nlattr.c:270)
[   12.737629][  T260]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   12.737639][  T260]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   12.737650][  T260]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   12.737653][  T260]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.737661][  T260]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.737664][  T260]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.737667][  T260]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   12.737670][  T260]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   12.737677][  T260]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   12.737681][  T260]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   12.737686][  T260]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   12.737688][  T260]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.737696][  T260]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.737699][  T260]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.737705][  T260]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   12.737708][  T260]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   12.737713][  T260]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   12.737725][  T260]  ? 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))
[   12.737727][  T260]  ? 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))
[   12.737735][  T260]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   12.737741][  T260]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   12.737746][  T260]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.737754][  T260]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   12.737760][  T260]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   12.737767][  T260]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   12.737776][  T260]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   12.737780][  T260]  ? copy_msghdr_from_user (net/socket.c:2650)
[   12.737783][  T260]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   12.737786][  T260]  ? move_addr_to_kernel (net/socket.c:258)
[   12.737800][  T260]  ___sys_sendmsg (net/socket.c:2767)
[   12.737804][  T260]  ? copy_msghdr_from_user (net/socket.c:2619)
[   12.737835][  T260]  __sys_sendmsg (net/socket.c:2799)
[   12.737839][  T260]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   12.737851][  T260]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.737857][  T260]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   12.737860][  T260]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   12.737865][  T260]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.737868][  T260] RIP: 0033:0x7f2c795e854e
[   12.737873][  T260] 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
[   12.737876][  T260] RSP: 002b:00007ffc5ba73070 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   12.737879][  T260] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f2c795e854e
[   12.737882][  T260] RDX: 0000000000000000 RSI: 00007ffc5ba73120 RDI: 0000000000000005
[   12.737883][  T260] RBP: 00007ffc5ba73080 R08: 0000000000000000 R09: 0000000000000000
[   12.737884][  T260] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a918b07
[   12.737886][  T260] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffc5ba737e0
| [   28.069866][    C3] softirqs last disabled at (604347): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   28.069868][    C3] Preemption disabled at:
| [   28.069868][    C3] 0x0
| [   28.069879][    C3] Tainted: [W]=WARN
[   28.069880][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   28.069882][    C3] Call Trace:
[   28.069883][    C3]  <IRQ>
[   28.069885][    C3]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   28.069890][    C3]  __might_resched.cold (kernel/sched/core.c:9234)
[   28.069894][    C3]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   28.069897][    C3]  ? __asan_memcpy (mm/kasan/shadow.c:106 (discriminator 1))
[   28.069900][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.069904][    C3]  __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))
[   28.069907][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   28.069910][    C3]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   28.069913][    C3]  ? 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)
[   28.069915][    C3]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   28.069917][    C3]  put_chars (drivers/char/virtio_console.c:1176)
[   28.069919][    C3]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   28.069921][    C3]  ? console_prepend_replay (kernel/printk/printk.c:3005)
[   28.069924][    C3]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   28.069927][    C3]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   28.069929][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.069930][    C3]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   28.069932][    C3]  console_emit_next_record (kernel/printk/printk.c:3183)
[   28.069935][    C3]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   28.069937][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.069938][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.069940][    C3]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   28.069942][    C3]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   28.069943][    C3]  console_flush_one_record (kernel/printk/printk.c:3268)
[   28.069946][    C3]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   28.069948][    C3]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   28.069950][    C3]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   28.069951][    C3]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   28.069953][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.069954][    C3]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   28.069956][    C3]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   28.069958][    C3]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   28.069959][    C3]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   28.069961][    C3]  vprintk_emit (kernel/printk/printk.c:2479)
[   28.069964][    C3]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   28.069965][    C3]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   28.069977][    C3]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   28.069979][    C3]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   28.069985][    C3]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   28.069991][    C3]  ? is_module_text_address (./include/linux/rcupdate.h:882 ./include/linux/rcupdate.h:1216 kernel/module/main.c:3934)
[   28.069995][    C3]  _printk (kernel/printk/printk.c:2504)
[   28.069998][    C3]  ? snapshot_read.cold (user.c:?)
[   28.069999][    C3]  ? arch_stack_walk (arch/x86/kernel/stacktrace.c:25)
[   28.070004][    C3]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   28.070006][    C3]  ? nbcon_cpu_emergency_enter (./include/linux/instrumented.h:112 ./include/linux/atomic/atomic-instrumented.h:435 kernel/printk/nbcon.c:1723)
[   28.070007][    C3]  print_irq_inversion_bug.part.0 (kernel/locking/lockdep.c:4097 (discriminator 1))
[   28.070010][    C3]  mark_lock_irq (kernel/locking/lockdep.c:4095 kernel/locking/lockdep.c:4174 kernel/locking/lockdep.c:4310)
[   28.070013][    C3]  mark_lock (kernel/locking/lockdep.c:4769)
[   28.070014][    C3]  mark_usage (kernel/locking/lockdep.c:4658)
[   28.070016][    C3]  __lock_acquire (kernel/locking/lockdep.c:5208)
[   28.070018][    C3]  lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   28.070020][    C3]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   28.070026][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.070028][    C3]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   28.070029][    C3]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   28.070041][    C3]  _raw_spin_lock (./include/linux/spinlock_api_smp.h:190 (discriminator 1) kernel/locking/spinlock.c:173 (discriminator 1))
[   28.070042][    C3]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   28.070048][    C3] br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   28.070055][    C3]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   28.070061][    C3]  call_timer_fn (kernel/time/timer.c:1748)
[   28.070064][    C3]  ? detach_if_pending (./include/linux/list.h:1159)
[   28.070066][    C3]  ? debug_object_active_state (lib/debugobjects.c:1122)
[   28.070069][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   28.070071][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   28.070072][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.070075][    C3]  __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2374)
[   28.070076][    C3]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   28.070083][    C3]  ? __bpf_trace_itimer_expire (./include/trace/events/timer.h:407)
[   28.070085][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   28.070087][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   28.070090][    C3]  run_timer_softirq (kernel/time/timer.c:2386 kernel/time/timer.c:2395 kernel/time/timer.c:2403)
[   28.070091][    C3]  ? __run_timers (./include/trace/events/timer.h:138 (discriminator 19))
[   28.070093][    C3]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   28.070095][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.070097][    C3]  handle_softirqs (kernel/softirq.c:645)
[   28.070099][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   28.070100][    C3]  ? _local_bh_enable (kernel/softirq.c:428 (discriminator 1))
[   28.070102][    C3]  __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
[   28.070104][    C3]  irq_exit_rcu (kernel/softirq.c:784)
[   28.070105][    C3]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1062 (discriminator 37) arch/x86/kernel/apic/apic.c:1062 (discriminator 37))
[   28.070108][    C3]  </IRQ>
[   28.070109][    C3]  <TASK>
[   28.070109][    C3]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   28.070111][    C3]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:674)
[   28.070113][    C3] RIP: 0010:pv_native_safe_halt (./arch/x86/include/asm/irqflags.h:48 arch/x86/kernel/paravirt.c:63)
[   28.070116][    C3] 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
[   28.070117][    C3] RSP: 0018:ffa0000000167e00 EFLAGS: 00000282
[   28.070121][    C3] RAX: 00000000000938b9 RBX: ff11000001c88040 RCX: ffffffffb1af0307
[   28.070122][    C3] RDX: ff11000001c88040 RSI: ffffffffb4838af6 RDI: ffffffffb428d8e0
[   28.070123][    C3] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[   28.070124][    C3] R10: 0000000000000003 R11: 0000000000000001 R12: 1ff400000002cfc3
[   28.070124][    C3] R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000000
[   28.070126][    C3]  ? cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   28.070129][    C3]  default_idle (./arch/x86/include/asm/paravirt.h:62 arch/x86/kernel/process.c:768)
[   28.070131][    C3]  default_idle_call (kernel/sched/idle.c:122)
[   28.070132][    C3]  cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   28.070134][    C3]  ? arch_cpu_idle_exit+0x40/0x40
[   28.070136][    C3]  ? mark_tsc_async_resets (arch/x86/kernel/tsc_sync.c:49)
[   28.070138][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.070139][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.070141][    C3]  do_idle (kernel/sched/idle.c:355)
[   28.070143][    C3]  cpu_startup_entry (kernel/sched/idle.c:454)
[   28.070144][    C3]  start_secondary (arch/x86/kernel/smpboot.c:312)
[   28.070146][    C3]  ? set_cpu_sibling_map (arch/x86/kernel/smpboot.c:733 (discriminator 4))
[   28.070148][    C3]  common_startup_64 (arch/x86/kernel/head_64.S:418)
| [   28.127518][    C3]
| [   28.127585][    C3]
| [   28.127585][    C3] stack backtrace:
| [   28.127751][    C3] Tainted: [W]=WARN
[   28.127752][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   28.127753][    C3] Call Trace:
[   28.127754][    C3]  <IRQ>
[   28.127756][    C3]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   28.127761][    C3]  print_irq_inversion_bug.part.0.cold (kernel/locking/lockdep.c:4141)
[   28.127764][    C3]  mark_lock_irq (kernel/locking/lockdep.c:4095 kernel/locking/lockdep.c:4174 kernel/locking/lockdep.c:4310)
[   28.127767][    C3]  mark_lock (kernel/locking/lockdep.c:4769)
[   28.127769][    C3]  mark_usage (kernel/locking/lockdep.c:4658)
[   28.127770][    C3]  __lock_acquire (kernel/locking/lockdep.c:5208)
[   28.127773][    C3]  lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   28.127775][    C3]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   28.127782][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.127786][    C3]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   28.127788][    C3]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   28.127794][    C3]  _raw_spin_lock (./include/linux/spinlock_api_smp.h:190 (discriminator 1) kernel/locking/spinlock.c:173 (discriminator 1))
[   28.127796][    C3]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   28.127803][    C3] br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   28.127810][    C3]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   28.127817][    C3]  call_timer_fn (kernel/time/timer.c:1748)
[   28.127819][    C3]  ? detach_if_pending (./include/linux/list.h:1159)
[   28.127821][    C3]  ? debug_object_active_state (lib/debugobjects.c:1122)
[   28.127824][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   28.127826][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   28.127828][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.127830][    C3]  __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2374)
[   28.127832][    C3]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   28.127839][    C3]  ? __bpf_trace_itimer_expire (./include/trace/events/timer.h:407)
[   28.127841][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   28.127844][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   28.127846][    C3]  run_timer_softirq (kernel/time/timer.c:2386 kernel/time/timer.c:2395 kernel/time/timer.c:2403)
[   28.127848][    C3]  ? __run_timers (./include/trace/events/timer.h:138 (discriminator 19))
[   28.127850][    C3]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   28.127852][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.127854][    C3]  handle_softirqs (kernel/softirq.c:645)
[   28.127856][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   28.127858][    C3]  ? _local_bh_enable (kernel/softirq.c:428 (discriminator 1))
[   28.127860][    C3]  __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
[   28.127861][    C3]  irq_exit_rcu (kernel/softirq.c:784)
[   28.127862][    C3]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1062 (discriminator 37) arch/x86/kernel/apic/apic.c:1062 (discriminator 37))
[   28.127864][    C3]  </IRQ>
[   28.127865][    C3]  <TASK>
[   28.127865][    C3]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   28.127867][    C3]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:674)
[   28.127869][    C3] RIP: 0010:pv_native_safe_halt (./arch/x86/include/asm/irqflags.h:48 arch/x86/kernel/paravirt.c:63)
[   28.127871][    C3] 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
[   28.127873][    C3] RSP: 0018:ffa0000000167e00 EFLAGS: 00000282
[   28.127875][    C3] RAX: 00000000000938b9 RBX: ff11000001c88040 RCX: ffffffffb1af0307
[   28.127876][    C3] RDX: ff11000001c88040 RSI: ffffffffb4838af6 RDI: ffffffffb428d8e0
[   28.127877][    C3] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[   28.127878][    C3] R10: 0000000000000003 R11: 0000000000000001 R12: 1ff400000002cfc3
[   28.127879][    C3] R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000000
[   28.127880][    C3]  ? cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   28.127883][    C3]  default_idle (./arch/x86/include/asm/paravirt.h:62 arch/x86/kernel/process.c:768)
[   28.127885][    C3]  default_idle_call (kernel/sched/idle.c:122)
[   28.127886][    C3]  cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   28.127888][    C3]  ? arch_cpu_idle_exit+0x40/0x40
[   28.127889][    C3]  ? mark_tsc_async_resets (arch/x86/kernel/tsc_sync.c:49)
[   28.127891][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.127893][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.127895][    C3]  do_idle (kernel/sched/idle.c:355)
[   28.127896][    C3]  cpu_startup_entry (kernel/sched/idle.c:454)
[   28.127898][    C3]  start_secondary (arch/x86/kernel/smpboot.c:312)
[   28.127899][    C3]  ? set_cpu_sibling_map (arch/x86/kernel/smpboot.c:733 (discriminator 4))
[   28.127901][    C3]  common_startup_64 (arch/x86/kernel/head_64.S:418)
| [   39.763978][  T444] softirqs last disabled at (0): 0x0
| [   39.763980][  T444] Preemption disabled at:
| [   39.763981][  T444] 0x0
| [   39.763989][  T444] Tainted: [W]=WARN
[   39.763990][  T444] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   39.763992][  T444] Call Trace:
[   39.763993][  T444]  <TASK>
[   39.763995][  T444]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   39.764000][  T444]  __might_resched.cold (kernel/sched/core.c:9234)
[   39.764004][  T444]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   39.764007][  T444]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   39.764011][  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))
[   39.764015][  T444]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   39.764018][  T444]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   39.764022][  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)
[   39.764023][  T444]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   39.764026][  T444]  put_chars (drivers/char/virtio_console.c:1176)
[   39.764028][  T444]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   39.764030][  T444]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   39.764033][  T444]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   39.764037][  T444]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   39.764039][  T444]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   39.764041][  T444]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   39.764043][  T444]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   39.764045][  T444]  console_emit_next_record (kernel/printk/printk.c:3183)
[   39.764047][  T444]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   39.764049][  T444]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   39.764051][  T444]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   39.764052][  T444]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   39.764054][  T444]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   39.764056][  T444]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   39.764057][  T444]  console_flush_one_record (kernel/printk/printk.c:3268)
[   39.764059][  T444]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   39.764062][  T444]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   39.764064][  T444]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   39.764065][  T444]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   39.764067][  T444]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   39.764068][  T444]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   39.764070][  T444]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   39.764071][  T444]  ? __rcu_read_lock (kernel/rcu/tree_plugin.h:391 (discriminator 6) kernel/rcu/tree_plugin.h:414 (discriminator 6))
[   39.764073][  T444]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   39.764080][  T444]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   39.764082][  T444]  vprintk_emit (kernel/printk/printk.c:2479)
[   39.764084][  T444]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   39.764086][  T444]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   39.764088][  T444]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   39.764090][  T444]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:78)
[   39.764092][  T444]  _printk (kernel/printk/printk.c:2504)
[   39.764095][  T444]  ? snapshot_read.cold (user.c:?)
[   39.764097][  T444]  ? ipv6_mc_down (net/ipv6/mcast.c:1157 net/ipv6/mcast.c:2820)
[   39.764102][  T444] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   39.764115][  T444] br_stp_disable_port (net/bridge/br_stp_if.c:106) bridge
[   39.764123][  T444] br_device_event (net/bridge/br.c:111) bridge
[   39.764131][  T444]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   39.764134][  T444]  ? _sub_I_65535_1+0x4d0/0x4d0 stp
[   39.764137][  T444]  ? addrconf_notify (net/ipv6/addrconf.c:3812)
[   39.764140][  T444]  notifier_call_chain (kernel/notifier.c:85)
[   39.764143][  T444]  __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855)
[   39.764147][  T444]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   39.764149][  T444]  ? netif_change_name (net/core/dev.c:1517)
[   39.764151][  T444]  ? netif_set_allmulti (./include/net/netdev_lock.h:30 (discriminator 1))
[   39.764153][  T444]  ? __kernel_text_address (kernel/extable.c:79)
[   39.764155][  T444]  ? write_profile (profile.c:?)
[   39.764157][  T444]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   39.764160][  T444]  netif_change_flags (net/core/dev.c:9882)
[   39.764162][  T444]  do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1))
[   39.764165][  T444]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   39.764166][  T444]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   39.764168][  T444]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   39.764169][  T444]  ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[   39.764173][  T444]  ? kasan_save_stack (mm/kasan/common.c:58)
[   39.764176][  T444]  ? kasan_save_stack (mm/kasan/common.c:57)
[   39.764177][  T444]  ? kasan_save_track (mm/kasan/common.c:78)
[   39.764178][  T444]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   39.764180][  T444]  ? __kmalloc_cache_noprof (./include/linux/kasan.h:263 mm/slub.c:5563)
[   39.764181][  T444]  ? rtnl_newlink (./include/linux/slab.h:991 (discriminator 1) net/core/rtnetlink.c:4113 (discriminator 1))
[   39.764182][  T444]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   39.764184][  T444]  ? netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   39.764186][  T444]  ? netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   39.764187][  T444]  ? netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   39.764189][  T444]  ? ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   39.764191][  T444]  ? ___sys_sendmsg (net/socket.c:2767)
[   39.764192][  T444]  ? __sys_sendmsg (net/socket.c:2799)
[   39.764194][  T444]  ? do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   39.764196][  T444]  ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   39.764198][  T444]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   39.764200][  T444]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   39.764202][  T444]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   39.764203][  T444]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   39.764205][  T444]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   39.764208][  T444]  ? __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)
[   39.764209][  T444]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   39.764210][  T444]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   39.764212][  T444]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   39.764214][  T444]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   39.764216][  T444]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   39.764218][  T444]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   39.764220][  T444]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   39.764221][  T444]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   39.764222][  T444]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   39.764224][  T444]  ? is_bpf_text_address (./include/linux/rcupdate.h:850 kernel/bpf/core.c:749)
[   39.764228][  T444]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   39.764229][  T444]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   39.764231][  T444]  ? __kernel_text_address (kernel/extable.c:79)
[   39.764232][  T444]  ? write_profile (profile.c:?)
[   39.764233][  T444]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   39.764234][  T444]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   39.764236][  T444]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   39.764237][  T444]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   39.764241][  T444]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   39.764242][  T444]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   39.764244][  T444]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   39.764245][  T444]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   39.764247][  T444]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   39.764248][  T444]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[   39.764249][  T444]  ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[   39.764252][  T444]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   39.764253][  T444]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   39.764254][  T444]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   39.764256][  T444]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   39.764257][  T444]  ? __netlink_lookup (./include/linux/rcupdate.h:850 ./include/linux/rhashtable.h:709 net/netlink/af_netlink.c:499)
[   39.764260][  T444]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   39.764261][  T444]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   39.764263][  T444]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   39.764265][  T444]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   39.764267][  T444]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   39.764268][  T444]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   39.764270][  T444]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   39.764272][  T444]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   39.764274][  T444]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   39.764275][  T444]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   39.764277][  T444]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   39.764279][  T444]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   39.764280][  T444]  ? copy_msghdr_from_user (net/socket.c:2650)
[   39.764282][  T444]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   39.764284][  T444]  ? move_addr_to_kernel (net/socket.c:258)
[   39.764285][  T444]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[   39.764287][  T444]  ___sys_sendmsg (net/socket.c:2767)
[   39.764289][  T444]  ? copy_msghdr_from_user (net/socket.c:2619)
[   39.764294][  T444]  __sys_sendmsg (net/socket.c:2799)
[   39.764296][  T444]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   39.764299][  T444]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   39.764301][  T444]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   39.764302][  T444]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   39.764304][  T444]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   39.764306][  T444] RIP: 0033:0x7fcdea5ad54e
[   39.764307][  T444] 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
[   39.764309][  T444] RSP: 002b:00007ffca651cd70 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   39.764313][  T444] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fcdea5ad54e
[   39.764314][  T444] RDX: 0000000000000000 RSI: 00007ffca651ce20 RDI: 0000000000000005
[   39.764315][  T444] RBP: 00007ffca651cd80 R08: 0000000000000000 R09: 0000000000000000
[   39.764316][  T444] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a918b22


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