======================================
| [   10.350205][  T187] softirqs last disabled at (48214): netlink_release (./include/net/sock.h:2138 net/netlink/af_netlink.c:727)
| [   10.350208][  T187] Preemption disabled at:
| [   10.350208][  T187] 0x0
| [   10.350219][  T187] Tainted: [W]=WARN
[   10.350220][  T187] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.350221][  T187] Call Trace:
[   10.350223][  T187]  <TASK>
[   10.350224][  T187]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   10.350230][  T187]  __might_resched.cold (kernel/sched/core.c:9234)
[   10.350235][  T187]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   10.350239][  T187]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   10.350244][  T187]  __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))
[   10.350246][  T187]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.350252][  T187]  ? 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)
[   10.350254][  T187]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.350257][  T187]  put_chars (drivers/char/virtio_console.c:1176)
[   10.350260][  T187]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   10.350261][  T187]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   10.350266][  T187]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   10.350271][  T187]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   10.350277][  T187]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   10.350279][  T187]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.350282][  T187]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.350286][  T187]  console_emit_next_record (kernel/printk/printk.c:3183)
[   10.350290][  T187]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   10.350291][  T187]  ? 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))
[   10.350294][  T187]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.350297][  T187]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.350301][  T187]  console_flush_one_record (kernel/printk/printk.c:3268)
[   10.350305][  T187]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   10.350307][  T187]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.350312][  T187]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   10.350320][  T187]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   10.350321][  T187]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.350324][  T187]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   10.350327][  T187]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   10.350329][  T187]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   10.350332][  T187]  vprintk_emit (kernel/printk/printk.c:2479)
[   10.350336][  T187]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   10.350340][  T187]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.350343][  T187]  _printk (kernel/printk/printk.c:2504)
[   10.350347][  T187]  ? snapshot_read.cold (user.c:?)
[   10.350350][  T187]  ? 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)
[   10.350352][  T187]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   10.350356][  T187]  ? 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)
[   10.350359][  T187]  do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4))
[   10.350362][  T187]  ? exit_notify (kernel/exit.c:780)
[   10.350364][  T187]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   10.350367][  T187]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.350371][  T187]  do_group_exit (kernel/exit.c:1151)
[   10.350374][  T187]  __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160)
[   10.350376][  T187]  x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232)
[   10.350378][  T187]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   10.350381][  T187]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   10.350384][  T187]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.350386][  T187] RIP: 0033:0x7fdc5c6411b8
[   10.350388][  T187] Code: Unable to access opcode bytes at 0x7fdc5c64118e.

Code starting with the faulting instruction
===========================================
[   10.350390][  T187] RSP: 002b:00007fff547dd298 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[   10.350392][  T187] RAX: ffffffffffffffda RBX: 00007fdc5c771f88 RCX: 00007fdc5c6411b8
[   10.350393][  T187] RDX: 00007fdc5c38bfc8 RSI: fffffffffffffeb8 RDI: 0000000000000000
[   10.350394][  T187] RBP: 00007fff547dd2f0 R08: 0000000000000000 R09: 0000000000008010
[   10.350395][  T187] R10: 00007fff547dd0b0 R11: 0000000000000246 R12: 0000000000000001
[   10.350396][  T187] R13: 0000000000000000 R14: 00007fdc5c770680 R15: 00007fdc5c771fa0
| [   12.383160][  T268] softirqs last disabled at (20150): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   12.383162][  T268] Preemption disabled at:
| [   12.383163][  T268] vprintk_emit (kernel/printk/printk.c:2471)
| [   12.383172][  T268] Tainted: [W]=WARN
[   12.383173][  T268] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.383174][  T268] Call Trace:
[   12.383176][  T268]  <TASK>
[   12.383178][  T268]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   12.383183][  T268]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   12.383186][  T268]  __might_resched.cold (kernel/sched/core.c:9234)
[   12.383190][  T268]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   12.383194][  T268]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   12.383199][  T268]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   12.383202][  T268]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.383207][  T268]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   12.383210][  T268]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.383213][  T268]  put_chars (drivers/char/virtio_console.c:1176)
[   12.383216][  T268]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   12.383220][  T268]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   12.383223][  T268]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   12.383226][  T268]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   12.383228][  T268]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.383229][  T268]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.383233][  T268]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   12.383235][  T268]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   12.383238][  T268]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.383242][  T268]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.383246][  T268]  console_emit_next_record (kernel/printk/printk.c:3183)
[   12.383250][  T268]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   12.383251][  T268]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   12.383254][  T268]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.383257][  T268]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.383261][  T268]  console_flush_one_record (kernel/printk/printk.c:3268)
[   12.383265][  T268]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   12.383266][  T268]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.383272][  T268]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   12.383275][  T268]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   12.383276][  T268]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.383279][  T268]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   12.383282][  T268]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   12.383284][  T268]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   12.383287][  T268]  vprintk_emit (kernel/printk/printk.c:2479)
[   12.383291][  T268]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   12.383293][  T268]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   12.383295][  T268]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   12.383299][  T268]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   12.383302][  T268]  _printk (kernel/printk/printk.c:2504)
[   12.383306][  T268]  ? snapshot_read.cold (user.c:?)
[   12.383309][  T268]  ? br_multicast_flood (??:?) bridge
[   12.383328][  T268]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   12.383329][  T268]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   12.383330][  T268]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   12.383335][  T268] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   12.383345][  T268] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   12.383353][  T268] new_nbp (net/bridge/br_if.c:449) bridge
[   12.383362][  T268] br_add_if (net/bridge/br_if.c:592) bridge
[   12.383369][  T268]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   12.383373][  T268]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   12.383375][  T268]  ? __kernel_text_address (kernel/extable.c:79)
[   12.383379][  T268]  do_set_master (net/core/rtnetlink.c:3071)
[   12.383384][  T268]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   12.383387][  T268]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   12.383390][  T268]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   12.383391][  T268]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   12.383393][  T268]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   12.383397][  T268]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   12.383399][  T268]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   12.383401][  T268]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   12.383404][  T268]  ? kasan_save_stack (mm/kasan/common.c:58)
[   12.383406][  T268]  ? kasan_save_stack (mm/kasan/common.c:57)
[   12.383408][  T268]  ? kasan_save_track (mm/kasan/common.c:78)
[   12.383411][  T268]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.383412][  T268]  ? netlink_seq_next (net/netlink/af_netlink.c:2685)
[   12.383415][  T268]  ? ___sys_sendmsg (net/socket.c:2757)
[   12.383419][  T268]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.383421][  T268]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   12.383424][  T268]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.383426][  T268]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.383428][  T268]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.383429][  T268]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.383432][  T268]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   12.383435][  T268]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   12.383437][  T268]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   12.383439][  T268]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   12.383442][  T268]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   12.383444][  T268]  ? nla_get_range_signed (lib/nlattr.c:270)
[   12.383449][  T268]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   12.383453][  T268]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   12.383458][  T268]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   12.383460][  T268]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.383465][  T268]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.383466][  T268]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.383468][  T268]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   12.383470][  T268]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   12.383474][  T268]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   12.383476][  T268]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   12.383479][  T268]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   12.383480][  T268]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.383484][  T268]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.383486][  T268]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.383489][  T268]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   12.383491][  T268]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   12.383494][  T268]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   12.383500][  T268]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   12.383501][  T268]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   12.383505][  T268]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   12.383509][  T268]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   12.383511][  T268]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.383515][  T268]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   12.383519][  T268]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   12.383523][  T268]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   12.383528][  T268]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   12.383530][  T268]  ? copy_msghdr_from_user (net/socket.c:2650)
[   12.383532][  T268]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   12.383534][  T268]  ? move_addr_to_kernel (net/socket.c:258)
[   12.383541][  T268]  ___sys_sendmsg (net/socket.c:2767)
[   12.383544][  T268]  ? copy_msghdr_from_user (net/socket.c:2619)
[   12.383559][  T268]  __sys_sendmsg (net/socket.c:2799)
[   12.383561][  T268]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   12.383567][  T268]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.383571][  T268]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   12.383573][  T268]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   12.383576][  T268]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.383578][  T268] RIP: 0033:0x7f8fc5c1754e
[   12.383581][  T268] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   12.383583][  T268] RSP: 002b:00007ffe3d7dad60 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   12.383586][  T268] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f8fc5c1754e
[   12.383587][  T268] RDX: 0000000000000000 RSI: 00007ffe3d7dae10 RDI: 0000000000000005
[   12.383588][  T268] RBP: 00007ffe3d7dad70 R08: 0000000000000000 R09: 0000000000000000
[   12.383589][  T268] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9134e3
[   12.383590][  T268] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffe3d7db4d0
| [   13.900610][  T317] softirqs last disabled at (11830): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   13.900612][  T317] Preemption disabled at:
| [   13.900613][  T317] vprintk_emit (kernel/printk/printk.c:2471)
| [   13.900622][  T317] Tainted: [W]=WARN
[   13.900623][  T317] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.900624][  T317] Call Trace:
[   13.900626][  T317]  <TASK>
[   13.900627][  T317]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   13.900633][  T317]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   13.900636][  T317]  __might_resched.cold (kernel/sched/core.c:9234)
[   13.900640][  T317]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   13.900644][  T317]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   13.900651][  T317]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   13.900654][  T317]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   13.900659][  T317]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   13.900662][  T317]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   13.900665][  T317]  put_chars (drivers/char/virtio_console.c:1176)
[   13.900667][  T317]  ? prb_final_commit (kernel/printk/printk_ringbuffer.c:1842)
[   13.900669][  T317]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   13.900672][  T317]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   13.900676][  T317]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   13.900679][  T317]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   13.900682][  T317]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   13.900685][  T317]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   13.900687][  T317]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.900688][  T317]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.900692][  T317]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   13.900694][  T317]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   13.900697][  T317]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.900700][  T317]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   13.900704][  T317]  console_emit_next_record (kernel/printk/printk.c:3183)
[   13.900708][  T317]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   13.900709][  T317]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   13.900712][  T317]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.900715][  T317]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   13.900719][  T317]  console_flush_one_record (kernel/printk/printk.c:3268)
[   13.900723][  T317]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   13.900724][  T317]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.900730][  T317]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   13.900732][  T317]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   13.900734][  T317]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.900736][  T317]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   13.900740][  T317]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   13.900742][  T317]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   13.900745][  T317]  vprintk_emit (kernel/printk/printk.c:2479)
[   13.900749][  T317]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   13.900751][  T317]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   13.900754][  T317]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   13.900758][  T317]  _printk (kernel/printk/printk.c:2504)
[   13.900761][  T317]  ? snapshot_read.cold (user.c:?)
[   13.900765][  T317]  ? br_multicast_flood (??:?) bridge
[   13.900777][  T317]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   13.900779][  T317]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   13.900780][  T317]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   13.900784][  T317] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   13.900794][  T317] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   13.900802][  T317] new_nbp (net/bridge/br_if.c:449) bridge
[   13.900811][  T317] br_add_if (net/bridge/br_if.c:592) bridge
[   13.900818][  T317]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   13.900823][  T317]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   13.900825][  T317]  ? __kernel_text_address (kernel/extable.c:79)
[   13.900829][  T317]  do_set_master (net/core/rtnetlink.c:3071)
[   13.900834][  T317]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   13.900837][  T317]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   13.900840][  T317]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   13.900841][  T317]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   13.900843][  T317]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   13.900846][  T317]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   13.900849][  T317]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   13.900851][  T317]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   13.900853][  T317]  ? kasan_save_stack (mm/kasan/common.c:58)
[   13.900856][  T317]  ? kasan_save_stack (mm/kasan/common.c:57)
[   13.900858][  T317]  ? kasan_save_track (mm/kasan/common.c:78)
[   13.900860][  T317]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.900862][  T317]  ? netlink_seq_next (net/netlink/af_netlink.c:2685)
[   13.900865][  T317]  ? ___sys_sendmsg (net/socket.c:2757)
[   13.900869][  T317]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   13.900871][  T317]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   13.900874][  T317]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.900876][  T317]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   13.900877][  T317]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.900879][  T317]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.900881][  T317]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   13.900885][  T317]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   13.900888][  T317]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   13.900890][  T317]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   13.900893][  T317]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   13.900895][  T317]  ? nla_get_range_signed (lib/nlattr.c:270)
[   13.900900][  T317]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   13.900904][  T317]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   13.900910][  T317]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   13.900911][  T317]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.900916][  T317]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   13.900917][  T317]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   13.900919][  T317]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   13.900921][  T317]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   13.900925][  T317]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   13.900927][  T317]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   13.900930][  T317]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   13.900931][  T317]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.900935][  T317]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   13.900937][  T317]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   13.900940][  T317]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   13.900942][  T317]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   13.900945][  T317]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   13.900951][  T317]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   13.900952][  T317]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   13.900957][  T317]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   13.900960][  T317]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   13.900963][  T317]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.900967][  T317]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   13.900970][  T317]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   13.900974][  T317]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   13.900979][  T317]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   13.900981][  T317]  ? copy_msghdr_from_user (net/socket.c:2650)
[   13.900984][  T317]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   13.900985][  T317]  ? move_addr_to_kernel (net/socket.c:258)
[   13.900992][  T317]  ___sys_sendmsg (net/socket.c:2767)
[   13.900995][  T317]  ? copy_msghdr_from_user (net/socket.c:2619)
[   13.901010][  T317]  __sys_sendmsg (net/socket.c:2799)
[   13.901013][  T317]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   13.901019][  T317]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.901022][  T317]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   13.901025][  T317]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   13.901028][  T317]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   13.901030][  T317] RIP: 0033:0x7f5de832354e
[   13.901034][  T317] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   13.901036][  T317] RSP: 002b:00007fffaa2366d0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   13.901038][  T317] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f5de832354e
[   13.901040][  T317] RDX: 0000000000000000 RSI: 00007fffaa236780 RDI: 0000000000000005
[   13.901041][  T317] RBP: 00007fffaa2366e0 R08: 0000000000000000 R09: 0000000000000000
[   13.901042][  T317] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9134e5
[   13.901042][  T317] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fffaa236e40
| [   15.061001][  T355] softirqs last disabled at (14786): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   15.061004][  T355] Preemption disabled at:
| [   15.061005][  T355] vprintk_emit (kernel/printk/printk.c:2471)
| [   15.061017][  T355] Tainted: [W]=WARN
[   15.061018][  T355] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.061020][  T355] Call Trace:
[   15.061023][  T355]  <TASK>
[   15.061025][  T355]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   15.061032][  T355]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   15.061035][  T355]  __might_resched.cold (kernel/sched/core.c:9234)
[   15.061042][  T355]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   15.061047][  T355]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   15.061055][  T355]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   15.061058][  T355]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   15.061067][  T355]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   15.061070][  T355]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   15.061075][  T355]  put_chars (drivers/char/virtio_console.c:1176)
[   15.061078][  T355]  ? prb_final_commit (kernel/printk/printk_ringbuffer.c:1842)
[   15.061082][  T355]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   15.061087][  T355]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   15.061092][  T355]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   15.061095][  T355]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   15.061101][  T355]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   15.061106][  T355]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   15.061108][  T355]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.061111][  T355]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.061117][  T355]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   15.061121][  T355]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   15.061126][  T355]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.061130][  T355]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   15.061136][  T355]  console_emit_next_record (kernel/printk/printk.c:3183)
[   15.061143][  T355]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   15.061145][  T355]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   15.061150][  T355]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.061154][  T355]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   15.061167][  T355]  console_flush_one_record (kernel/printk/printk.c:3268)
[   15.061174][  T355]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   15.061176][  T355]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.061185][  T355]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   15.061190][  T355]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   15.061192][  T355]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.061196][  T355]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   15.061202][  T355]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   15.061205][  T355]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   15.061210][  T355]  vprintk_emit (kernel/printk/printk.c:2479)
[   15.061216][  T355]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   15.061220][  T355]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   15.061224][  T355]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   15.061230][  T355]  _printk (kernel/printk/printk.c:2504)
[   15.061235][  T355]  ? snapshot_read.cold (user.c:?)
[   15.061242][  T355]  ? br_multicast_flood (??:?) bridge
[   15.061259][  T355]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   15.061262][  T355]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   15.061264][  T355]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   15.061272][  T355] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   15.061288][  T355] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   15.061302][  T355] new_nbp (net/bridge/br_if.c:449) bridge
[   15.061318][  T355] br_add_if (net/bridge/br_if.c:592) bridge
[   15.061337][  T355]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   15.061342][  T355]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   15.061346][  T355]  ? __kernel_text_address (kernel/extable.c:79)
[   15.061353][  T355]  do_set_master (net/core/rtnetlink.c:3071)
[   15.061360][  T355]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   15.061365][  T355]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   15.061370][  T355]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   15.061372][  T355]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   15.061375][  T355]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   15.061380][  T355]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   15.061383][  T355]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   15.061386][  T355]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   15.061390][  T355]  ? kasan_save_stack (mm/kasan/common.c:58)
[   15.061394][  T355]  ? kasan_save_stack (mm/kasan/common.c:57)
[   15.061397][  T355]  ? kasan_save_track (mm/kasan/common.c:78)
[   15.061401][  T355]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.061404][  T355]  ? netlink_seq_next (net/netlink/af_netlink.c:2685)
[   15.061408][  T355]  ? ___sys_sendmsg (net/socket.c:2757)
[   15.061415][  T355]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   15.061418][  T355]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   15.061422][  T355]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.061426][  T355]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   15.061428][  T355]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.061431][  T355]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.061434][  T355]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   15.061440][  T355]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   15.061443][  T355]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   15.061447][  T355]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   15.061453][  T355]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   15.061456][  T355]  ? nla_get_range_signed (lib/nlattr.c:270)
[   15.061464][  T355]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   15.061474][  T355]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   15.061484][  T355]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   15.061487][  T355]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.061495][  T355]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   15.061498][  T355]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   15.061501][  T355]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   15.061504][  T355]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   15.061510][  T355]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   15.061514][  T355]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   15.061519][  T355]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   15.061521][  T355]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.061529][  T355]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   15.061532][  T355]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   15.061538][  T355]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   15.061540][  T355]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   15.061546][  T355]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   15.061556][  T355]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   15.061559][  T355]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   15.061566][  T355]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   15.061573][  T355]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   15.061577][  T355]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.061584][  T355]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   15.061591][  T355]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   15.061597][  T355]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   15.061606][  T355]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   15.061609][  T355]  ? copy_msghdr_from_user (net/socket.c:2650)
[   15.061613][  T355]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   15.061615][  T355]  ? move_addr_to_kernel (net/socket.c:258)
[   15.061629][  T355]  ___sys_sendmsg (net/socket.c:2767)
[   15.061633][  T355]  ? copy_msghdr_from_user (net/socket.c:2619)
[   15.061666][  T355]  __sys_sendmsg (net/socket.c:2799)
[   15.061671][  T355]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   15.061681][  T355]  ? fpregs_restore_userregs (./include/linux/instrumented.h:97 ./include/asm-generic/bitops/instrumented-atomic.h:41 ./include/linux/thread_info.h:109 arch/x86/kernel/fpu/context.h:79)
[   15.061685][  T355]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.061691][  T355]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   15.061694][  T355]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   15.061699][  T355]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   15.061702][  T355] RIP: 0033:0x7f04a76e054e
[   15.061707][  T355] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   15.061709][  T355] RSP: 002b:00007fff5b92dc50 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   15.061714][  T355] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f04a76e054e
[   15.061716][  T355] RDX: 0000000000000000 RSI: 00007fff5b92dd00 RDI: 0000000000000005
[   15.061718][  T355] RBP: 00007fff5b92dc60 R08: 0000000000000000 R09: 0000000000000000
[   15.061719][  T355] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9134e6
[   15.061721][  T355] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fff5b92e3c0
| [   22.670582][  T443] softirqs last disabled at (14087): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   22.670585][  T443] Preemption disabled at:
| [   22.670585][  T443] vprintk_emit (kernel/printk/printk.c:2471)
| [   22.670594][  T443] Tainted: [W]=WARN
[   22.670595][  T443] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   22.670597][  T443] Call Trace:
[   22.670598][  T443]  <TASK>
[   22.670600][  T443]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   22.670605][  T443]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   22.670607][  T443]  __might_resched.cold (kernel/sched/core.c:9234)
[   22.670612][  T443]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   22.670616][  T443]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   22.670621][  T443]  __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))
[   22.670623][  T443]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   22.670629][  T443]  ? 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)
[   22.670632][  T443]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   22.670636][  T443]  put_chars (drivers/char/virtio_console.c:1176)
[   22.670638][  T443]  ? desc_read_finalized_seq (kernel/printk/printk_ringbuffer.c:1934)
[   22.670640][  T443]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   22.670643][  T443]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   22.670649][  T443]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   22.670654][  T443]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   22.670656][  T443]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.670658][  T443]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.670662][  T443]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   22.670663][  T443]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   22.670666][  T443]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.670669][  T443]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   22.670673][  T443]  console_emit_next_record (kernel/printk/printk.c:3183)
[   22.670677][  T443]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   22.670679][  T443]  ? 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))
[   22.670682][  T443]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.670684][  T443]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   22.670688][  T443]  console_flush_one_record (kernel/printk/printk.c:3268)
[   22.670692][  T443]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   22.670694][  T443]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.670698][  T443]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   22.670701][  T443]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   22.670703][  T443]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.670705][  T443]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   22.670709][  T443]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   22.670710][  T443]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   22.670714][  T443]  vprintk_emit (kernel/printk/printk.c:2479)
[   22.670718][  T443]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   22.670723][  T443]  ? llc_exit (./arch/x86/include/asm/atomic.h:28 ./include/linux/atomic/atomic-arch-fallback.h:503 ./include/linux/atomic/atomic-instrumented.h:68 ./include/linux/refcount.h:134 net/llc/llc_core.c:38 net/llc/llc_core.c:96) llc
[   22.670726][  T443]  _printk (kernel/printk/printk.c:2504)
[   22.670730][  T443]  ? snapshot_read.cold (user.c:?)
[   22.670736][  T443]  ? do_one_initcall (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 ./include/linux/cpumask.h:650 ./include/linux/cpumask.h:1232 ./include/trace/events/initcall.h:27 init/main.c:1356)
[   22.670739][  T443] gact_init_module (net/sched/act_gact.c:180) act_gact
[   22.670741][  T443]  do_one_initcall (init/main.c:1357)
[   22.670744][  T443]  ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10)
[   22.670748][  T443]  ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1))
[   22.670751][  T443]  ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178)
[   22.670756][  T443]  do_init_module (kernel/module/main.c:3117)
[   22.670759][  T443]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   22.670764][  T443]  ? free_module (./include/trace/events/module.h:50 (discriminator 19))
[   22.670767][  T443]  ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792)
[   22.670771][  T443]  load_module (kernel/module/main.c:3593)
[   22.670778][  T443]  ? layout_and_allocate.isra.0 (kernel/module/main.c:3016)
[   22.670782][  T443]  ? __ia32_sys_fsconfig (??:?)
[   22.670784][  T443]  ? ovl_real_file (fs/overlayfs/file.c:195)
[   22.670789][  T443]  ? backing_file_read_iter (fs/backing-file.c:211)
[   22.670792][  T443]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   22.670796][  T443]  init_module_from_file (kernel/module/main.c:3790)
[   22.670799][  T443]  ? __do_sys_init_module (kernel/module/main.c:3664)
[   22.670806][  T443]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   22.670810][  T443]  ? 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)
[   22.670813][  T443]  idempotent_init_module (kernel/module/main.c:3802)
[   22.670816][  T443]  ? init_module_from_file (kernel/module/main.c:3791)
[   22.670822][  T443]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.670824][  T443]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   22.670830][  T443]  __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812)
[   22.670832][  T443]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   22.670836][  T443]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   22.670838][  T443]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   22.670841][  T443]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   22.670843][  T443] RIP: 0033:0x7f2bc92c437d
[   22.670846][  T443] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 4b aa 0f 00 f7 d8 64 89 01 48
All code
========
   0:	ff c3                	inc    %ebx
   2:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
   9:	00 00 00 
   c:	90                   	nop
   d:	f3 0f 1e fa          	endbr64
  11:	48 89 f8             	mov    %rdi,%rax
  14:	48 89 f7             	mov    %rsi,%rdi
  17:	48 89 d6             	mov    %rdx,%rsi
  1a:	48 89 ca             	mov    %rcx,%rdx
  1d:	4d 89 c2             	mov    %r8,%r10
  20:	4d 89 c8             	mov    %r9,%r8
  23:	4c 8b 4c 24 08       	mov    0x8(%rsp),%r9
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d 4b aa 0f 00 	mov    0xfaa4b(%rip),%rcx        # 0xfaa85
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d 4b aa 0f 00 	mov    0xfaa4b(%rip),%rcx        # 0xfaa5b
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   22.670848][  T443] RSP: 002b:00007ffdadec3e18 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[   22.670851][  T443] RAX: ffffffffffffffda RBX: 0000562a0c25a810 RCX: 00007f2bc92c437d
[   22.670852][  T443] RDX: 0000000000000000 RSI: 0000562a09aabffd RDI: 0000000000000000
[   22.670853][  T443] RBP: 00007ffdadec3eb0 R08: 0000000000000000 R09: 0000000000000000
[   22.670854][  T443] R10: 0000000000000000 R11: 0000000000000246 R12: 0000562a09aabffd
[   22.670854][  T443] R13: 0000562a0c25a960 R14: 0000000000040000 R15: 0000000000000000
| [   27.497761][    C2] softirqs last disabled at (836427): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   27.497763][    C2] Preemption disabled at:
| [   27.497764][    C2] 0x0
| [   27.497776][    C2] Tainted: [W]=WARN
[   27.497777][    C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   27.497779][    C2] Call Trace:
[   27.497781][    C2]  <IRQ>
[   27.497783][    C2]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   27.497789][    C2]  __might_resched.cold (kernel/sched/core.c:9234)
[   27.497793][    C2]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   27.497796][    C2]  ? __asan_memcpy (mm/kasan/shadow.c:106 (discriminator 1))
[   27.497799][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.497803][    C2]  __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))
[   27.497806][    C2]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   27.497809][    C2]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   27.497813][    C2]  ? 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)
[   27.497814][    C2]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   27.497817][    C2]  put_chars (drivers/char/virtio_console.c:1176)
[   27.497819][    C2]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   27.497820][    C2]  ? console_prepend_replay (kernel/printk/printk.c:3005)
[   27.497823][    C2]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   27.497827][    C2]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   27.497828][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.497830][    C2]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   27.497832][    C2]  console_emit_next_record (kernel/printk/printk.c:3183)
[   27.497835][    C2]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   27.497837][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.497839][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.497840][    C2]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   27.497842][    C2]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   27.497844][    C2]  console_flush_one_record (kernel/printk/printk.c:3268)
[   27.497846][    C2]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   27.497849][    C2]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   27.497851][    C2]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   27.497852][    C2]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   27.497854][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.497855][    C2]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   27.497857][    C2]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   27.497859][    C2]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   27.497861][    C2]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   27.497863][    C2]  vprintk_emit (kernel/printk/printk.c:2479)
[   27.497865][    C2]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   27.497867][    C2]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   27.497879][    C2]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   27.497880][    C2]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   27.497887][    C2]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   27.497893][    C2]  ? is_module_text_address (./include/linux/rcupdate.h:882 ./include/linux/rcupdate.h:1216 kernel/module/main.c:3934)
[   27.497897][    C2]  _printk (kernel/printk/printk.c:2504)
[   27.497900][    C2]  ? snapshot_read.cold (user.c:?)
[   27.497902][    C2]  ? arch_stack_walk (arch/x86/kernel/stacktrace.c:25)
[   27.497906][    C2]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   27.497908][    C2]  ? nbcon_cpu_emergency_enter (./include/linux/instrumented.h:112 ./include/linux/atomic/atomic-instrumented.h:435 kernel/printk/nbcon.c:1723)
[   27.497910][    C2]  print_irq_inversion_bug.part.0 (kernel/locking/lockdep.c:4097 (discriminator 1))
[   27.497912][    C2]  mark_lock_irq (kernel/locking/lockdep.c:4095 kernel/locking/lockdep.c:4174 kernel/locking/lockdep.c:4310)
[   27.497915][    C2]  mark_lock (kernel/locking/lockdep.c:4769)
[   27.497917][    C2]  mark_usage (kernel/locking/lockdep.c:4658)
[   27.497919][    C2]  __lock_acquire (kernel/locking/lockdep.c:5208)
[   27.497921][    C2]  lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   27.497923][    C2]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   27.497929][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.497931][    C2]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   27.497933][    C2]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   27.497939][    C2]  _raw_spin_lock (./include/linux/spinlock_api_smp.h:190 (discriminator 1) kernel/locking/spinlock.c:173 (discriminator 1))
[   27.497941][    C2]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   27.497947][    C2] br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   27.497954][    C2]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   27.497960][    C2]  call_timer_fn (kernel/time/timer.c:1748)
[   27.497963][    C2]  ? detach_if_pending (./include/linux/list.h:1159)
[   27.497965][    C2]  ? debug_object_active_state (lib/debugobjects.c:1122)
[   27.497968][    C2]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   27.497970][    C2]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   27.497971][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.497974][    C2]  __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2374)
[   27.497975][    C2]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   27.497982][    C2]  ? __bpf_trace_itimer_expire (./include/trace/events/timer.h:407)
[   27.497984][    C2]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   27.497987][    C2]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   27.497989][    C2]  run_timer_softirq (kernel/time/timer.c:2386 kernel/time/timer.c:2395 kernel/time/timer.c:2403)
[   27.497991][    C2]  ? __run_timers (./include/trace/events/timer.h:138 (discriminator 19))
[   27.497993][    C2]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   27.497995][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.497997][    C2]  handle_softirqs (kernel/softirq.c:645)
[   27.497999][    C2]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   27.498000][    C2]  ? _local_bh_enable (kernel/softirq.c:428 (discriminator 1))
[   27.498002][    C2]  __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
[   27.498004][    C2]  irq_exit_rcu (kernel/softirq.c:784)
[   27.498005][    C2]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1062 (discriminator 37) arch/x86/kernel/apic/apic.c:1062 (discriminator 37))
[   27.498008][    C2]  </IRQ>
[   27.498009][    C2]  <TASK>
[   27.498009][    C2]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   27.498011][    C2]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:674)
[   27.498013][    C2] RIP: 0010:pv_native_safe_halt (./arch/x86/include/asm/irqflags.h:48 arch/x86/kernel/paravirt.c:63)
[   27.498016][    C2] Code: 48 8b 3d 94 e2 f5 01 e8 1f 00 00 00 48 2b 05 58 a3 95 00 c3 0f 1f 80 00 00 00 00 f3 0f 1e fa eb 07 0f 00 2d 13 96 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 e2 f5 01 	mov    0x1f5e294(%rip),%rdi        # 0x1f5e29b
   7:	e8 1f 00 00 00       	call   0x2b
   c:	48 2b 05 58 a3 95 00 	sub    0x95a358(%rip),%rax        # 0x95a36b
  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 96 11 00 	verw   0x119613(%rip)        # 0x11963b
  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
[   27.498018][    C2] RSP: 0018:ffa0000000157e00 EFLAGS: 00000282
[   27.498021][    C2] RAX: 00000000000cc349 RBX: ff11000001bec6c0 RCX: ffffffff8f6f0307
[   27.498023][    C2] RDX: ff11000001bec6c0 RSI: ffffffff92438b01 RDI: ffffffff91e8d8e0
[   27.498024][    C2] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[   27.498025][    C2] R10: 0000000000000002 R11: 0000000000000001 R12: 1ff400000002afc3
[   27.498025][    C2] R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000000
[   27.498027][    C2]  ? cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   27.498030][    C2]  default_idle (./arch/x86/include/asm/paravirt.h:62 arch/x86/kernel/process.c:768)
[   27.498032][    C2]  default_idle_call (kernel/sched/idle.c:122)
[   27.498034][    C2]  cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   27.498035][    C2]  ? arch_cpu_idle_exit+0x40/0x40
[   27.498037][    C2]  ? mark_tsc_async_resets (arch/x86/kernel/tsc_sync.c:49)
[   27.498039][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.498041][    C2]  do_idle (kernel/sched/idle.c:355)
[   27.498043][    C2]  cpu_startup_entry (kernel/sched/idle.c:454)
[   27.498044][    C2]  start_secondary (arch/x86/kernel/smpboot.c:312)
[   27.498046][    C2]  ? set_cpu_sibling_map (arch/x86/kernel/smpboot.c:733 (discriminator 4))
[   27.498048][    C2]  common_startup_64 (arch/x86/kernel/head_64.S:418)
| [   27.558960][    C2]
| [   27.559071][    C2]
| [   27.559071][    C2] stack backtrace:
| [   27.559246][    C2] Tainted: [W]=WARN
[   27.559247][    C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   27.559248][    C2] Call Trace:
[   27.559250][    C2]  <IRQ>
[   27.559252][    C2]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   27.559256][    C2]  print_irq_inversion_bug.part.0.cold (kernel/locking/lockdep.c:4141)
[   27.559259][    C2]  mark_lock_irq (kernel/locking/lockdep.c:4095 kernel/locking/lockdep.c:4174 kernel/locking/lockdep.c:4310)
[   27.559262][    C2]  mark_lock (kernel/locking/lockdep.c:4769)
[   27.559264][    C2]  mark_usage (kernel/locking/lockdep.c:4658)
[   27.559266][    C2]  __lock_acquire (kernel/locking/lockdep.c:5208)
[   27.559268][    C2]  lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   27.559270][    C2]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   27.559277][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.559280][    C2]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   27.559282][    C2]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   27.559288][    C2]  _raw_spin_lock (./include/linux/spinlock_api_smp.h:190 (discriminator 1) kernel/locking/spinlock.c:173 (discriminator 1))
[   27.559290][    C2]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   27.559296][    C2] br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   27.559303][    C2]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   27.559309][    C2]  call_timer_fn (kernel/time/timer.c:1748)
[   27.559311][    C2]  ? detach_if_pending (./include/linux/list.h:1159)
[   27.559313][    C2]  ? debug_object_active_state (lib/debugobjects.c:1122)
[   27.559317][    C2]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   27.559319][    C2]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   27.559320][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.559323][    C2]  __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2374)
[   27.559324][    C2]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   27.559331][    C2]  ? __bpf_trace_itimer_expire (./include/trace/events/timer.h:407)
[   27.559333][    C2]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   27.559336][    C2]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   27.559338][    C2]  run_timer_softirq (kernel/time/timer.c:2386 kernel/time/timer.c:2395 kernel/time/timer.c:2403)
[   27.559340][    C2]  ? __run_timers (./include/trace/events/timer.h:138 (discriminator 19))
[   27.559342][    C2]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   27.559344][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.559346][    C2]  handle_softirqs (kernel/softirq.c:645)
[   27.559348][    C2]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   27.559349][    C2]  ? _local_bh_enable (kernel/softirq.c:428 (discriminator 1))
[   27.559351][    C2]  __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
[   27.559353][    C2]  irq_exit_rcu (kernel/softirq.c:784)
[   27.559354][    C2]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1062 (discriminator 37) arch/x86/kernel/apic/apic.c:1062 (discriminator 37))
[   27.559356][    C2]  </IRQ>
[   27.559357][    C2]  <TASK>
[   27.559357][    C2]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   27.559359][    C2]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:674)
[   27.559361][    C2] RIP: 0010:pv_native_safe_halt (./arch/x86/include/asm/irqflags.h:48 arch/x86/kernel/paravirt.c:63)
[   27.559363][    C2] Code: 48 8b 3d 94 e2 f5 01 e8 1f 00 00 00 48 2b 05 58 a3 95 00 c3 0f 1f 80 00 00 00 00 f3 0f 1e fa eb 07 0f 00 2d 13 96 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 e2 f5 01 	mov    0x1f5e294(%rip),%rdi        # 0x1f5e29b
   7:	e8 1f 00 00 00       	call   0x2b
   c:	48 2b 05 58 a3 95 00 	sub    0x95a358(%rip),%rax        # 0x95a36b
  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 96 11 00 	verw   0x119613(%rip)        # 0x11963b
  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
[   27.559365][    C2] RSP: 0018:ffa0000000157e00 EFLAGS: 00000282
[   27.559367][    C2] RAX: 00000000000cc349 RBX: ff11000001bec6c0 RCX: ffffffff8f6f0307
[   27.559368][    C2] RDX: ff11000001bec6c0 RSI: ffffffff92438b01 RDI: ffffffff91e8d8e0
[   27.559369][    C2] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[   27.559370][    C2] R10: 0000000000000002 R11: 0000000000000001 R12: 1ff400000002afc3
[   27.559371][    C2] R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000000
[   27.559377][    C2]  ? cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   27.559379][    C2]  default_idle (./arch/x86/include/asm/paravirt.h:62 arch/x86/kernel/process.c:768)
[   27.559381][    C2]  default_idle_call (kernel/sched/idle.c:122)
[   27.559383][    C2]  cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   27.559384][    C2]  ? arch_cpu_idle_exit+0x40/0x40
[   27.559386][    C2]  ? mark_tsc_async_resets (arch/x86/kernel/tsc_sync.c:49)
[   27.559388][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.559390][    C2]  do_idle (kernel/sched/idle.c:355)
[   27.559391][    C2]  cpu_startup_entry (kernel/sched/idle.c:454)
[   27.559393][    C2]  start_secondary (arch/x86/kernel/smpboot.c:312)
[   27.559394][    C2]  ? set_cpu_sibling_map (arch/x86/kernel/smpboot.c:733 (discriminator 4))
[   27.559396][    C2]  common_startup_64 (arch/x86/kernel/head_64.S:418)
| [   66.045307][   T12] softirqs last disabled at (29802): __fib6_clean_all (./include/linux/spinlock.h:353 net/ipv6/ip6_fib.c:2323)
| [   66.045310][   T12] Preemption disabled at:
| [   66.045310][   T12] vprintk_emit (kernel/printk/printk.c:2471)
| [   66.045322][   T12] Tainted: [W]=WARN
[   66.045323][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   66.045325][   T12] Workqueue: netns cleanup_net
[   66.045331][   T12] Call Trace:
[   66.045332][   T12]  <TASK>
[   66.045334][   T12]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   66.045340][   T12]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   66.045343][   T12]  __might_resched.cold (kernel/sched/core.c:9234)
[   66.045348][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   66.045352][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   66.045357][   T12]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   66.045362][   T12]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   66.045365][   T12]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   66.045369][   T12]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   66.045370][   T12]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   66.045372][   T12]  put_chars (drivers/char/virtio_console.c:1176)
[   66.045374][   T12]  ? desc_read_finalized_seq (kernel/printk/printk_ringbuffer.c:1934)
[   66.045376][   T12]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   66.045378][   T12]  ? console_prepend_replay (kernel/printk/printk.c:3005)
[   66.045380][   T12]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   66.045384][   T12]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   66.045385][   T12]  ? do_raw_spin_lock (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:1301 ./include/asm-generic/qspinlock.h:112 kernel/locking/spinlock_debug.c:116)
[   66.045387][   T12]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   66.045389][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   66.045391][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   66.045392][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   66.045395][   T12]  console_emit_next_record (kernel/printk/printk.c:3183)
[   66.045397][   T12]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   66.045400][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   66.045401][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   66.045403][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   66.045405][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   66.045407][   T12]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   66.045409][   T12]  console_flush_one_record (kernel/printk/printk.c:3268)
[   66.045411][   T12]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   66.045414][   T12]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   66.045416][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   66.045418][   T12]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   66.045419][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   66.045421][   T12]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   66.045423][   T12]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   66.045424][   T12]  ? __rcu_read_lock (kernel/rcu/tree_plugin.h:391 (discriminator 6) kernel/rcu/tree_plugin.h:414 (discriminator 6))
[   66.045426][   T12]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   66.045428][   T12]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   66.045430][   T12]  vprintk_emit (kernel/printk/printk.c:2479)
[   66.045433][   T12]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   66.045435][   T12]  ? process_one_work (kernel/workqueue.c:3387)
[   66.045438][   T12]  ? kthread (kernel/kthread.c:436)
[   66.045440][   T12]  ? ret_from_fork (arch/x86/kernel/process.c:158)
[   66.045442][   T12]  ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
[   66.045445][   T12]  _printk (kernel/printk/printk.c:2504)
[   66.045448][   T12]  ? snapshot_read.cold (user.c:?)
[   66.045451][   T12]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   66.045453][   T12]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   66.045455][   T12]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   66.045457][   T12]  ? netdev_notice (net/core/dev.c:13194)
[   66.045459][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   66.045461][   T12]  ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1))
[   66.045463][   T12]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:78)
[   66.045466][   T12]  ? down_write_nested (kernel/locking/rwsem.c:1759)
[   66.045467][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   66.045470][   T12]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[   66.045473][   T12]  dev_set_allmulti (net/core/dev_api.c:315)
[   66.045476][   T12] del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341) bridge
[   66.045490][   T12] br_dev_delete (net/bridge/br_if.c:387) bridge
[   66.045499][   T12] br_net_exit_rtnl (net/bridge/br.c:414) bridge
[   66.045514][   T12]  ops_undo_list (net/core/net_namespace.c:181 net/core/net_namespace.c:249)
[   66.045516][   T12]  ? rtnl_net_dumpid_one (net/core/net_namespace.c:1098)
[   66.045518][   T12]  ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563)
[   66.045522][   T12]  cleanup_net (net/core/net_namespace.c:706)
[   66.045524][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   66.045526][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   66.045528][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   66.045530][   T12]  process_one_work (kernel/workqueue.c:3387)
[   66.045533][   T12]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[   66.045535][   T12]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   66.045538][   T12]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   66.045540][   T12]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   66.045543][   T12]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   66.045545][   T12]  kthread (kernel/kthread.c:436)
[   66.045547][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   66.045548][   T12]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   66.045550][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   66.045552][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[   66.045554][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   66.045557][   T12]  ? kthread_affine_preferred (kernel/kthread.c:857)


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
__alloc_skb:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars
__fib6_clean_all:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars
__irq_exit_rcu:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars