======================================
| [   10.446307][  T209] softirqs last disabled at (28425): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   10.446309][  T209] Preemption disabled at:
| [   10.446310][  T209] 0x0
| [   10.446320][  T209] Tainted: [W]=WARN
[   10.446321][  T209] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.446323][  T209] Call Trace:
[   10.446324][  T209]  <TASK>
[   10.446326][  T209]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   10.446332][  T209]  __might_resched.cold (kernel/sched/core.c:9234)
[   10.446337][  T209]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   10.446341][  T209]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   10.446346][  T209]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   10.446348][  T209]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.446354][  T209]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   10.446357][  T209]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.446360][  T209]  put_chars (drivers/char/virtio_console.c:1176)
[   10.446362][  T209]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   10.446364][  T209]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   10.446368][  T209]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   10.446373][  T209]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   10.446379][  T209]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   10.446381][  T209]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.446384][  T209]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.446388][  T209]  console_emit_next_record (kernel/printk/printk.c:3183)
[   10.446391][  T209]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   10.446393][  T209]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   10.446397][  T209]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.446399][  T209]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.446403][  T209]  console_flush_one_record (kernel/printk/printk.c:3268)
[   10.446407][  T209]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   10.446409][  T209]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.446414][  T209]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   10.446416][  T209]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   10.446418][  T209]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.446420][  T209]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   10.446424][  T209]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   10.446426][  T209]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   10.446429][  T209]  vprintk_emit (kernel/printk/printk.c:2479)
[   10.446433][  T209]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   10.446436][  T209]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.446440][  T209]  _printk (kernel/printk/printk.c:2504)
[   10.446443][  T209]  ? snapshot_read.cold (user.c:?)
[   10.446446][  T209]  ? do_raw_spin_lock (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:1301 ./include/asm-generic/qspinlock.h:112 kernel/locking/spinlock_debug.c:116)
[   10.446449][  T209]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   10.446452][  T209]  ? do_raw_spin_lock (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:1301 ./include/asm-generic/qspinlock.h:112 kernel/locking/spinlock_debug.c:116)
[   10.446455][  T209]  do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4))
[   10.446458][  T209]  ? exit_notify (kernel/exit.c:780)
[   10.446460][  T209]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   10.446463][  T209]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.446467][  T209]  do_group_exit (kernel/exit.c:1151)
[   10.446470][  T209]  __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160)
[   10.446472][  T209]  x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232)
[   10.446474][  T209]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   10.446477][  T209]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   10.446480][  T209]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.446482][  T209] RIP: 0033:0x7f6d3fff11b8
[   10.446484][  T209] Code: Unable to access opcode bytes at 0x7f6d3fff118e.

Code starting with the faulting instruction
===========================================
[   10.446485][  T209] RSP: 002b:00007ffc90c9ae68 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[   10.446488][  T209] RAX: ffffffffffffffda RBX: 00007f6d40121f88 RCX: 00007f6d3fff11b8
[   10.446489][  T209] RDX: 00007f6d3fd3bfc8 RSI: fffffffffffffeb8 RDI: 0000000000000000
[   10.446490][  T209] RBP: 00007ffc90c9aec0 R08: 0000000000000000 R09: 0000000000008010
[   10.446491][  T209] R10: 00007ffc90c9ac80 R11: 0000000000000246 R12: 0000000000000001
[   10.446492][  T209] R13: 0000000000000000 R14: 00007f6d40120680 R15: 00007f6d40121fa0
| [   12.638841][  T282] softirqs last disabled at (19508): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   12.638844][  T282] Preemption disabled at:
| [   12.638845][  T282] vprintk_emit (kernel/printk/printk.c:2471)
| [   12.638858][  T282] Tainted: [W]=WARN
[   12.638859][  T282] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.638861][  T282] Call Trace:
[   12.638863][  T282]  <TASK>
[   12.638866][  T282]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   12.638873][  T282]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   12.638876][  T282]  __might_resched.cold (kernel/sched/core.c:9234)
[   12.638882][  T282]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   12.638888][  T282]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   12.638896][  T282]  __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))
[   12.638899][  T282]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.638907][  T282]  ? 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)
[   12.638911][  T282]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.638916][  T282]  put_chars (drivers/char/virtio_console.c:1176)
[   12.638921][  T282]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   12.638928][  T282]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   12.638934][  T282]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   12.638938][  T282]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   12.638941][  T282]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.638944][  T282]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.638950][  T282]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   12.638954][  T282]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   12.638959][  T282]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.638964][  T282]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.638971][  T282]  console_emit_next_record (kernel/printk/printk.c:3183)
[   12.638977][  T282]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   12.638979][  T282]  ? 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))
[   12.638985][  T282]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.638988][  T282]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.638998][  T282]  console_flush_one_record (kernel/printk/printk.c:3268)
[   12.639005][  T282]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   12.639007][  T282]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.639017][  T282]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   12.639021][  T282]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   12.639023][  T282]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.639027][  T282]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   12.639033][  T282]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   12.639036][  T282]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   12.639041][  T282]  vprintk_emit (kernel/printk/printk.c:2479)
[   12.639048][  T282]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   12.639051][  T282]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   12.639054][  T282]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   12.639060][  T282]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   12.639066][  T282]  _printk (kernel/printk/printk.c:2504)
[   12.639071][  T282]  ? snapshot_read.cold (user.c:?)
[   12.639077][  T282]  ? br_multicast_flood (??:?) bridge
[   12.639094][  T282]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   12.639096][  T282]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   12.639098][  T282]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   12.639106][  T282] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   12.639123][  T282] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   12.639137][  T282] new_nbp (net/bridge/br_if.c:449) bridge
[   12.639153][  T282] br_add_if (net/bridge/br_if.c:592) bridge
[   12.639165][  T282]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   12.639172][  T282]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   12.639177][  T282]  ? __kernel_text_address (kernel/extable.c:79)
[   12.639184][  T282]  do_set_master (net/core/rtnetlink.c:3071)
[   12.639196][  T282]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   12.639202][  T282]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   12.639206][  T282]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   12.639208][  T282]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   12.639211][  T282]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   12.639216][  T282]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   12.639220][  T282]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   12.639222][  T282]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   12.639227][  T282]  ? kasan_save_stack (mm/kasan/common.c:58)
[   12.639231][  T282]  ? kasan_save_stack (mm/kasan/common.c:57)
[   12.639233][  T282]  ? kasan_save_track (mm/kasan/common.c:78)
[   12.639237][  T282]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.639240][  T282]  ? netlink_seq_next (net/netlink/af_netlink.c:2685)
[   12.639244][  T282]  ? ___sys_sendmsg (net/socket.c:2757)
[   12.639251][  T282]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.639254][  T282]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   12.639259][  T282]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.639262][  T282]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.639264][  T282]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.639267][  T282]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.639271][  T282]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   12.639276][  T282]  ? __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)
[   12.639278][  T282]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   12.639282][  T282]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   12.639288][  T282]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   12.639290][  T282]  ? nla_get_range_signed (lib/nlattr.c:270)
[   12.639299][  T282]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   12.639309][  T282]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   12.639318][  T282]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   12.639321][  T282]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.639329][  T282]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.639332][  T282]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.639335][  T282]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   12.639338][  T282]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   12.639345][  T282]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   12.639348][  T282]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   12.639354][  T282]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   12.639356][  T282]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.639363][  T282]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.639366][  T282]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.639372][  T282]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   12.639375][  T282]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   12.639380][  T282]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   12.639391][  T282]  ? 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))
[   12.639394][  T282]  ? 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))
[   12.639401][  T282]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   12.639408][  T282]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   12.639412][  T282]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.639419][  T282]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   12.639426][  T282]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   12.639432][  T282]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   12.639440][  T282]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   12.639444][  T282]  ? copy_msghdr_from_user (net/socket.c:2650)
[   12.639448][  T282]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   12.639450][  T282]  ? move_addr_to_kernel (net/socket.c:258)
[   12.639462][  T282]  ___sys_sendmsg (net/socket.c:2767)
[   12.639466][  T282]  ? copy_msghdr_from_user (net/socket.c:2619)
[   12.639496][  T282]  __sys_sendmsg (net/socket.c:2799)
[   12.639501][  T282]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   12.639512][  T282]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.639518][  T282]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   12.639522][  T282]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   12.639527][  T282]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.639530][  T282] RIP: 0033:0x7f655925754e
[   12.639535][  T282] 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
[   12.639537][  T282] RSP: 002b:00007ffcf83b5990 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   12.639541][  T282] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f655925754e
[   12.639543][  T282] RDX: 0000000000000000 RSI: 00007ffcf83b5a40 RDI: 0000000000000005
[   12.639545][  T282] RBP: 00007ffcf83b59a0 R08: 0000000000000000 R09: 0000000000000000
[   12.639546][  T282] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a915924
[   12.639548][  T282] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffcf83b6100
| [   14.524841][  T339] softirqs last disabled at (19844): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   14.524844][  T339] Preemption disabled at:
| [   14.524845][  T339] vprintk_emit (kernel/printk/printk.c:2471)
| [   14.524857][  T339] Tainted: [W]=WARN
[   14.524858][  T339] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   14.524860][  T339] Call Trace:
[   14.524863][  T339]  <TASK>
[   14.524865][  T339]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   14.524873][  T339]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   14.524876][  T339]  __might_resched.cold (kernel/sched/core.c:9234)
[   14.524882][  T339]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   14.524888][  T339]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   14.524895][  T339]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   14.524899][  T339]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   14.524907][  T339]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   14.524911][  T339]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   14.524916][  T339]  put_chars (drivers/char/virtio_console.c:1176)
[   14.524919][  T339]  ? prb_final_commit (kernel/printk/printk_ringbuffer.c:1842)
[   14.524922][  T339]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   14.524927][  T339]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   14.524933][  T339]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   14.524936][  T339]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   14.524942][  T339]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   14.524946][  T339]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   14.524949][  T339]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.524952][  T339]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.524958][  T339]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   14.524962][  T339]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   14.524967][  T339]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.524971][  T339]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   14.524977][  T339]  console_emit_next_record (kernel/printk/printk.c:3183)
[   14.524984][  T339]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   14.524986][  T339]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   14.524993][  T339]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.524997][  T339]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   14.525004][  T339]  console_flush_one_record (kernel/printk/printk.c:3268)
[   14.525011][  T339]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   14.525014][  T339]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.525023][  T339]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   14.525028][  T339]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   14.525030][  T339]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.525034][  T339]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   14.525040][  T339]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   14.525043][  T339]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   14.525048][  T339]  vprintk_emit (kernel/printk/printk.c:2479)
[   14.525055][  T339]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   14.525059][  T339]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   14.525063][  T339]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   14.525069][  T339]  _printk (kernel/printk/printk.c:2504)
[   14.525074][  T339]  ? snapshot_read.cold (user.c:?)
[   14.525081][  T339]  ? br_multicast_flood (??:?) bridge
[   14.525098][  T339]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   14.525100][  T339]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   14.525102][  T339]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   14.525110][  T339] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   14.525128][  T339] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   14.525141][  T339] new_nbp (net/bridge/br_if.c:449) bridge
[   14.525157][  T339] br_add_if (net/bridge/br_if.c:592) bridge
[   14.525169][  T339]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   14.525175][  T339]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   14.525179][  T339]  ? __kernel_text_address (kernel/extable.c:79)
[   14.525186][  T339]  do_set_master (net/core/rtnetlink.c:3071)
[   14.525194][  T339]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   14.525204][  T339]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   14.525208][  T339]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   14.525210][  T339]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   14.525213][  T339]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   14.525218][  T339]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   14.525222][  T339]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   14.525225][  T339]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   14.525229][  T339]  ? kasan_save_stack (mm/kasan/common.c:58)
[   14.525233][  T339]  ? kasan_save_stack (mm/kasan/common.c:57)
[   14.525235][  T339]  ? kasan_save_track (mm/kasan/common.c:78)
[   14.525240][  T339]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.525242][  T339]  ? netlink_seq_next (net/netlink/af_netlink.c:2685)
[   14.525246][  T339]  ? ___sys_sendmsg (net/socket.c:2757)
[   14.525253][  T339]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   14.525256][  T339]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   14.525261][  T339]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.525265][  T339]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   14.525267][  T339]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.525270][  T339]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.525273][  T339]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   14.525279][  T339]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   14.525283][  T339]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   14.525286][  T339]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   14.525292][  T339]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   14.525295][  T339]  ? nla_get_range_signed (lib/nlattr.c:270)
[   14.525304][  T339]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   14.525313][  T339]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   14.525323][  T339]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   14.525326][  T339]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.525334][  T339]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   14.525337][  T339]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   14.525340][  T339]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   14.525344][  T339]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   14.525350][  T339]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   14.525353][  T339]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   14.525359][  T339]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   14.525361][  T339]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.525369][  T339]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   14.525372][  T339]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   14.525378][  T339]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   14.525381][  T339]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   14.525386][  T339]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   14.525397][  T339]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   14.525399][  T339]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   14.525407][  T339]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   14.525414][  T339]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   14.525418][  T339]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.525425][  T339]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   14.525432][  T339]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   14.525439][  T339]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   14.525447][  T339]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   14.525451][  T339]  ? copy_msghdr_from_user (net/socket.c:2650)
[   14.525455][  T339]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   14.525457][  T339]  ? move_addr_to_kernel (net/socket.c:258)
[   14.525471][  T339]  ___sys_sendmsg (net/socket.c:2767)
[   14.525475][  T339]  ? copy_msghdr_from_user (net/socket.c:2619)
[   14.525506][  T339]  __sys_sendmsg (net/socket.c:2799)
[   14.525510][  T339]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   14.525521][  T339]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.525528][  T339]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   14.525531][  T339]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   14.525536][  T339]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   14.525539][  T339] RIP: 0033:0x7fa70065654e
[   14.525544][  T339] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   14.525547][  T339] RSP: 002b:00007ffec74225a0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   14.525550][  T339] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fa70065654e
[   14.525552][  T339] RDX: 0000000000000000 RSI: 00007ffec7422650 RDI: 0000000000000005
[   14.525554][  T339] RBP: 00007ffec74225b0 R08: 0000000000000000 R09: 0000000000000000
[   14.525555][  T339] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a915926
[   14.525557][  T339] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffec7422d10
| [   16.068471][  T392] softirqs last disabled at (20814): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   16.068474][  T392] Preemption disabled at:
| [   16.068475][  T392] vprintk_emit (kernel/printk/printk.c:2471)
| [   16.068488][  T392] Tainted: [W]=WARN
[   16.068489][  T392] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.068491][  T392] Call Trace:
[   16.068493][  T392]  <TASK>
[   16.068496][  T392]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   16.068503][  T392]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   16.068506][  T392]  __might_resched.cold (kernel/sched/core.c:9234)
[   16.068513][  T392]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   16.068519][  T392]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   16.068526][  T392]  __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))
[   16.068530][  T392]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   16.068539][  T392]  ? 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)
[   16.068542][  T392]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   16.068548][  T392]  put_chars (drivers/char/virtio_console.c:1176)
[   16.068551][  T392]  ? prb_final_commit (kernel/printk/printk_ringbuffer.c:1842)
[   16.068554][  T392]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   16.068560][  T392]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   16.068565][  T392]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   16.068569][  T392]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   16.068575][  T392]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   16.068579][  T392]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   16.068582][  T392]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   16.068584][  T392]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   16.068591][  T392]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   16.068595][  T392]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   16.068600][  T392]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.068604][  T392]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   16.068611][  T392]  console_emit_next_record (kernel/printk/printk.c:3183)
[   16.068617][  T392]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   16.068620][  T392]  ? 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))
[   16.068625][  T392]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.068628][  T392]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   16.068636][  T392]  console_flush_one_record (kernel/printk/printk.c:3268)
[   16.068643][  T392]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   16.068645][  T392]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   16.068655][  T392]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   16.068659][  T392]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   16.068662][  T392]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.068666][  T392]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   16.068672][  T392]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   16.068675][  T392]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   16.068680][  T392]  vprintk_emit (kernel/printk/printk.c:2479)
[   16.068687][  T392]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   16.068691][  T392]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   16.068695][  T392]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   16.068702][  T392]  _printk (kernel/printk/printk.c:2504)
[   16.068707][  T392]  ? snapshot_read.cold (user.c:?)
[   16.068713][  T392]  ? br_multicast_flood (??:?) bridge
[   16.068731][  T392]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   16.068733][  T392]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   16.068735][  T392]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   16.068743][  T392] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   16.068761][  T392] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   16.068775][  T392] new_nbp (net/bridge/br_if.c:449) bridge
[   16.068791][  T392] br_add_if (net/bridge/br_if.c:592) bridge
[   16.068803][  T392]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   16.068809][  T392]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   16.068813][  T392]  ? __kernel_text_address (kernel/extable.c:79)
[   16.068820][  T392]  do_set_master (net/core/rtnetlink.c:3071)
[   16.068828][  T392]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   16.068833][  T392]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   16.068838][  T392]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   16.068840][  T392]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   16.068843][  T392]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   16.068847][  T392]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   16.068851][  T392]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   16.068854][  T392]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   16.068859][  T392]  ? kasan_save_stack (mm/kasan/common.c:58)
[   16.068862][  T392]  ? kasan_save_stack (mm/kasan/common.c:57)
[   16.068865][  T392]  ? kasan_save_track (mm/kasan/common.c:78)
[   16.068869][  T392]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   16.068872][  T392]  ? netlink_seq_next (net/netlink/af_netlink.c:2685)
[   16.068876][  T392]  ? ___sys_sendmsg (net/socket.c:2757)
[   16.068883][  T392]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   16.068886][  T392]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   16.068891][  T392]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.068895][  T392]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   16.068897][  T392]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.068900][  T392]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.068903][  T392]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   16.068909][  T392]  ? __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)
[   16.068913][  T392]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   16.068916][  T392]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   16.068923][  T392]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   16.068925][  T392]  ? nla_get_range_signed (lib/nlattr.c:270)
[   16.068935][  T392]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   16.068944][  T392]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   16.068955][  T392]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   16.068958][  T392]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   16.068966][  T392]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   16.068969][  T392]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   16.068972][  T392]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   16.068975][  T392]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   16.068982][  T392]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   16.068986][  T392]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   16.068994][  T392]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   16.068996][  T392]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   16.069004][  T392]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   16.069007][  T392]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   16.069013][  T392]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   16.069016][  T392]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   16.069022][  T392]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   16.069033][  T392]  ? 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))
[   16.069036][  T392]  ? 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))
[   16.069043][  T392]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   16.069050][  T392]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   16.069054][  T392]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   16.069062][  T392]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   16.069069][  T392]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   16.069076][  T392]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   16.069085][  T392]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   16.069089][  T392]  ? copy_msghdr_from_user (net/socket.c:2650)
[   16.069093][  T392]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   16.069095][  T392]  ? move_addr_to_kernel (net/socket.c:258)
[   16.069109][  T392]  ___sys_sendmsg (net/socket.c:2767)
[   16.069114][  T392]  ? copy_msghdr_from_user (net/socket.c:2619)
[   16.069144][  T392]  __sys_sendmsg (net/socket.c:2799)
[   16.069148][  T392]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   16.069160][  T392]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.069166][  T392]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   16.069169][  T392]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   16.069174][  T392]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   16.069178][  T392] RIP: 0033:0x7f091a44654e
[   16.069183][  T392] 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
[   16.069185][  T392] RSP: 002b:00007ffc6433ee00 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   16.069189][  T392] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f091a44654e
[   16.069191][  T392] RDX: 0000000000000000 RSI: 00007ffc6433eeb0 RDI: 0000000000000005
[   16.069193][  T392] RBP: 00007ffc6433ee10 R08: 0000000000000000 R09: 0000000000000000
[   16.069194][  T392] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a915928
[   16.069196][  T392] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffc6433f570
| [   17.314962][  T438] softirqs last disabled at (11886): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   17.314965][  T438] Preemption disabled at:
| [   17.314965][  T438] vprintk_emit (kernel/printk/printk.c:2471)
| [   17.314974][  T438] Tainted: [W]=WARN
[   17.314975][  T438] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   17.314977][  T438] Call Trace:
[   17.314979][  T438]  <TASK>
[   17.314980][  T438]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   17.314986][  T438]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   17.314988][  T438]  __might_resched.cold (kernel/sched/core.c:9234)
[   17.314995][  T438]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   17.315000][  T438]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   17.315005][  T438]  __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))
[   17.315007][  T438]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   17.315013][  T438]  ? 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)
[   17.315015][  T438]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   17.315018][  T438]  put_chars (drivers/char/virtio_console.c:1176)
[   17.315020][  T438]  ? prb_final_commit (kernel/printk/printk_ringbuffer.c:1842)
[   17.315023][  T438]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   17.315025][  T438]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   17.315030][  T438]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   17.315032][  T438]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   17.315035][  T438]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   17.315038][  T438]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   17.315040][  T438]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   17.315042][  T438]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   17.315045][  T438]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   17.315047][  T438]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   17.315050][  T438]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.315053][  T438]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   17.315056][  T438]  console_emit_next_record (kernel/printk/printk.c:3183)
[   17.315060][  T438]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   17.315062][  T438]  ? 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))
[   17.315065][  T438]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.315067][  T438]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   17.315071][  T438]  console_flush_one_record (kernel/printk/printk.c:3268)
[   17.315075][  T438]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   17.315077][  T438]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   17.315082][  T438]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   17.315085][  T438]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   17.315087][  T438]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.315089][  T438]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   17.315093][  T438]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   17.315094][  T438]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   17.315097][  T438]  vprintk_emit (kernel/printk/printk.c:2479)
[   17.315102][  T438]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   17.315104][  T438]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   17.315109][  T438]  _printk (kernel/printk/printk.c:2504)
[   17.315112][  T438]  ? snapshot_read.cold (user.c:?)
[   17.315116][  T438]  ? br_multicast_flood (??:?) bridge
[   17.315129][  T438]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   17.315130][  T438]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   17.315131][  T438]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   17.315135][  T438] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   17.315145][  T438] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   17.315154][  T438] new_nbp (net/bridge/br_if.c:449) bridge
[   17.315163][  T438] br_add_if (net/bridge/br_if.c:592) bridge
[   17.315169][  T438]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   17.315173][  T438]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   17.315176][  T438]  ? __kernel_text_address (kernel/extable.c:79)
[   17.315180][  T438]  do_set_master (net/core/rtnetlink.c:3071)
[   17.315185][  T438]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   17.315188][  T438]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   17.315191][  T438]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   17.315192][  T438]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   17.315194][  T438]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   17.315198][  T438]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   17.315200][  T438]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   17.315202][  T438]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   17.315205][  T438]  ? kasan_save_stack (mm/kasan/common.c:58)
[   17.315207][  T438]  ? kasan_save_stack (mm/kasan/common.c:57)
[   17.315209][  T438]  ? kasan_save_track (mm/kasan/common.c:78)
[   17.315218][  T438]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   17.315220][  T438]  ? netlink_seq_next (net/netlink/af_netlink.c:2685)
[   17.315223][  T438]  ? ___sys_sendmsg (net/socket.c:2757)
[   17.315227][  T438]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   17.315229][  T438]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   17.315232][  T438]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.315234][  T438]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   17.315235][  T438]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.315237][  T438]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.315239][  T438]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   17.315243][  T438]  ? __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)
[   17.315246][  T438]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   17.315248][  T438]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   17.315251][  T438]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   17.315253][  T438]  ? nla_get_range_signed (lib/nlattr.c:270)
[   17.315258][  T438]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   17.315263][  T438]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   17.315268][  T438]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   17.315270][  T438]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   17.315274][  T438]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   17.315276][  T438]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   17.315278][  T438]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   17.315280][  T438]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   17.315283][  T438]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   17.315285][  T438]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   17.315288][  T438]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   17.315289][  T438]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   17.315293][  T438]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   17.315295][  T438]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   17.315299][  T438]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   17.315300][  T438]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   17.315303][  T438]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   17.315309][  T438]  ? 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))
[   17.315310][  T438]  ? 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))
[   17.315314][  T438]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   17.315318][  T438]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   17.315321][  T438]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   17.315325][  T438]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   17.315328][  T438]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   17.315332][  T438]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   17.315337][  T438]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   17.315339][  T438]  ? copy_msghdr_from_user (net/socket.c:2650)
[   17.315341][  T438]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   17.315343][  T438]  ? move_addr_to_kernel (net/socket.c:258)
[   17.315350][  T438]  ___sys_sendmsg (net/socket.c:2767)
[   17.315353][  T438]  ? copy_msghdr_from_user (net/socket.c:2619)
[   17.315368][  T438]  __sys_sendmsg (net/socket.c:2799)
[   17.315370][  T438]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   17.315376][  T438]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.315380][  T438]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   17.315382][  T438]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   17.315385][  T438]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   17.315387][  T438] RIP: 0033:0x7f5ef7e9354e
[   17.315391][  T438] 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
[   17.315393][  T438] RSP: 002b:00007ffe71ee20b0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   17.315395][  T438] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f5ef7e9354e
[   17.315397][  T438] RDX: 0000000000000000 RSI: 00007ffe71ee2160 RDI: 0000000000000005
[   17.315398][  T438] RBP: 00007ffe71ee20c0 R08: 0000000000000000 R09: 0000000000000000
[   17.315399][  T438] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a915929
[   17.315400][  T438] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffe71ee2820
| [   25.916271][   T12] softirqs last disabled at (27069): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   25.916275][   T12] Preemption disabled at:
| [   25.916275][   T12] vprintk_emit (kernel/printk/printk.c:2471)
| [   25.916289][   T12] Tainted: [W]=WARN
[   25.916290][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   25.916293][   T12] Workqueue: netns cleanup_net
[   25.916297][   T12] Call Trace:
[   25.916300][   T12]  <TASK>
[   25.916304][   T12]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   25.916312][   T12]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   25.916315][   T12]  __might_resched.cold (kernel/sched/core.c:9234)
[   25.916322][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   25.916328][   T12]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   25.916335][   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))
[   25.916339][   T12]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   25.916348][   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)
[   25.916352][   T12]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   25.916358][   T12]  put_chars (drivers/char/virtio_console.c:1176)
[   25.916362][   T12]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   25.916368][   T12]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   25.916376][   T12]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   25.916380][   T12]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   25.916382][   T12]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   25.916391][   T12]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   25.916393][   T12]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   25.916399][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.916404][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   25.916411][   T12]  console_emit_next_record (kernel/printk/printk.c:3183)
[   25.916418][   T12]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   25.916420][   T12]  ? 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))
[   25.916426][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.916429][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   25.916436][   T12]  console_flush_one_record (kernel/printk/printk.c:3268)
[   25.916443][   T12]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   25.916446][   T12]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   25.916456][   T12]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   25.916460][   T12]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   25.916463][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.916466][   T12]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   25.916473][   T12]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   25.916476][   T12]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   25.916482][   T12]  vprintk_emit (kernel/printk/printk.c:2479)
[   25.916488][   T12]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   25.916491][   T12]  ? process_one_work (kernel/workqueue.c:3387)
[   25.916494][   T12]  ? kthread (kernel/kthread.c:436)
[   25.916497][   T12]  ? ret_from_fork (arch/x86/kernel/process.c:158)
[   25.916501][   T12]  ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
[   25.916509][   T12]  _printk (kernel/printk/printk.c:2504)
[   25.916514][   T12]  ? snapshot_read.cold (user.c:?)
[   25.916523][   T12]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   25.916528][   T12]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   25.916534][   T12]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   25.916538][   T12]  ? netdev_notice (net/core/dev.c:13194)
[   25.916545][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.916549][   T12]  ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1))
[   25.916553][   T12]  ? down_write_nested (kernel/locking/rwsem.c:1759)
[   25.916556][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   25.916559][   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)
[   25.916565][   T12]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[   25.916573][   T12]  dev_set_allmulti (net/core/dev_api.c:315)
[   25.916579][   T12] del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341) bridge
[   25.916606][   T12] br_dev_delete (net/bridge/br_if.c:387) bridge
[   25.916623][   T12] br_net_exit_rtnl (net/bridge/br.c:414) bridge
[   25.916638][   T12]  ops_undo_list (net/core/net_namespace.c:181 net/core/net_namespace.c:249)
[   25.916645][   T12]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   25.916650][   T12]  ? rtnl_net_dumpid_one (net/core/net_namespace.c:1098)
[   25.916653][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   25.916658][   T12]  ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563)
[   25.916666][   T12]  cleanup_net (net/core/net_namespace.c:706)
[   25.916672][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   25.916679][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   25.916682][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.916689][   T12]  process_one_work (kernel/workqueue.c:3387)
[   25.916702][   T12]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[   25.916708][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   25.916723][   T12]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   25.916736][   T12]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   25.916740][   T12]  kthread (kernel/kthread.c:436)
[   25.916742][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   25.916746][   T12]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   25.916751][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   25.916756][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[   25.916762][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   25.916766][   T12]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   25.916771][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   25.971407][    C0]
| [   25.971407][    C0]
| [   25.971407][    C0] stack backtrace:
| [   25.971414][    C0] Tainted: [W]=WARN
[   25.971414][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   25.971417][    C0] Call Trace:
[   25.971418][    C0]  <IRQ>
[   25.971419][    C0]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   25.971423][    C0]  print_irq_inversion_bug.part.0.cold (kernel/locking/lockdep.c:4141)
[   25.971426][    C0]  mark_lock_irq (kernel/locking/lockdep.c:4095 kernel/locking/lockdep.c:4174 kernel/locking/lockdep.c:4310)
[   25.971427][    C0]  ? add_lock_to_list (./include/linux/find.h:391 kernel/locking/lockdep.c:1419 kernel/locking/lockdep.c:1450)
[   25.971430][    C0]  mark_lock (kernel/locking/lockdep.c:4769)
[   25.971432][    C0]  mark_usage (kernel/locking/lockdep.c:4658)
[   25.971434][    C0]  __lock_acquire (kernel/locking/lockdep.c:5208)
[   25.971435][    C0]  ? bpf_compute_postorder (kernel/bpf/cfg.c:696 (discriminator 1))
[   25.971440][    C0]  lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   25.971442][    C0]  ? console_trylock_spinning (kernel/printk/printk.c:2026 (discriminator 2))
[   25.971443][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.971446][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   25.971448][    C0]  console_trylock_spinning (kernel/printk/printk.c:2026 (discriminator 2))
[   25.971450][    C0]  ? console_trylock_spinning (kernel/printk/printk.c:2026 (discriminator 2))
[   25.971452][    C0]  vprintk_emit (kernel/printk/printk.c:2478)
[   25.971454][    C0]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   25.971456][    C0]  ? clocksource_watchdog.part.0 (kernel/time/clocksource.c:531 (discriminator 1) kernel/time/clocksource.c:608 (discriminator 1) kernel/time/clocksource.c:667 (discriminator 1))
[   25.971458][    C0]  _printk (kernel/printk/printk.c:2504)
[   25.971460][    C0]  ? snapshot_read.cold (user.c:?)
[   25.971462][    C0]  ? clocksource_watchdog.part.0 (kernel/time/clocksource.c:531 (discriminator 1) kernel/time/clocksource.c:608 (discriminator 1) kernel/time/clocksource.c:667 (discriminator 1))
[   25.971464][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   25.971467][    C0]  clocksource_watchdog.part.0.cold (kernel/time/clocksource.c:589 (discriminator 10) kernel/time/clocksource.c:632 (discriminator 10) kernel/time/clocksource.c:667 (discriminator 10))
[   25.971468][    C0]  ? clocksource_watchdog.part.0 (./include/linux/find.h:67 (discriminator 4))
[   25.971470][    C0]  ? clocksource_watchdog.part.0 (./include/linux/find.h:67 (discriminator 4))
[   25.971471][    C0]  call_timer_fn (kernel/time/timer.c:1748)
[   25.971473][    C0]  ? detach_if_pending (./include/linux/list.h:1159)
[   25.971475][    C0]  ? debug_object_active_state (lib/debugobjects.c:1122)
[   25.971478][    C0]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   25.971480][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   25.971482][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.971484][    C0]  __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2374)
[   25.971486][    C0]  ? clocksource_watchdog.part.0 (./include/linux/find.h:67 (discriminator 4))
[   25.971488][    C0]  ? __bpf_trace_itimer_expire (./include/trace/events/timer.h:407)
[   25.971490][    C0]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   25.971493][    C0]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   25.971495][    C0]  run_timer_softirq (kernel/time/timer.c:2386 kernel/time/timer.c:2395 kernel/time/timer.c:2403)
[   25.971497][    C0]  ? __run_timers (./include/trace/events/timer.h:138 (discriminator 19))
[   25.971499][    C0]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   25.971501][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.971503][    C0]  handle_softirqs (kernel/softirq.c:645)
[   25.971505][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   25.971507][    C0]  ? _local_bh_enable (kernel/softirq.c:428 (discriminator 1))
[   25.971509][    C0]  __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
[   25.971510][    C0]  irq_exit_rcu (kernel/softirq.c:784)
[   25.971512][    C0]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1062 (discriminator 37) arch/x86/kernel/apic/apic.c:1062 (discriminator 37))
[   25.971513][    C0]  </IRQ>
[   25.971514][    C0]  <TASK>
[   25.971515][    C0]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:674)
[   25.971517][    C0] RIP: 0010:rcu_read_lock_any_held (kernel/rcu/update.c:113 (discriminator 1) kernel/rcu/update.c:103 (discriminator 1) kernel/rcu/update.c:384 (discriminator 1))
[   25.971519][    C0] Code: 00 f3 0f 1e fa 53 bb 01 00 00 00 e8 c1 64 3b 02 85 c0 75 04 89 d8 5b c3 89 c3 e8 52 32 01 00 84 c0 74 5b e8 19 76 01 00 84 c0 <74> 52 be ff ff ff ff 48 c7 c7 00 0b 98 b8 e8 f4 62 3b 02 85 c0 75
All code
========
   0:	00 f3                	add    %dh,%bl
   2:	0f 1e fa             	nop    %edx
   5:	53                   	push   %rbx
   6:	bb 01 00 00 00       	mov    $0x1,%ebx
   b:	e8 c1 64 3b 02       	call   0x23b64d1
  10:	85 c0                	test   %eax,%eax
  12:	75 04                	jne    0x18
  14:	89 d8                	mov    %ebx,%eax
  16:	5b                   	pop    %rbx
  17:	c3                   	ret
  18:	89 c3                	mov    %eax,%ebx
  1a:	e8 52 32 01 00       	call   0x13271
  1f:	84 c0                	test   %al,%al
  21:	74 5b                	je     0x7e
  23:	e8 19 76 01 00       	call   0x17641
  28:	84 c0                	test   %al,%al
  2a:*	74 52                	je     0x7e		<-- trapping instruction
  2c:	be ff ff ff ff       	mov    $0xffffffff,%esi
  31:	48 c7 c7 00 0b 98 b8 	mov    $0xffffffffb8980b00,%rdi
  38:	e8 f4 62 3b 02       	call   0x23b6331
  3d:	85 c0                	test   %eax,%eax
  3f:	75                   	.byte 0x75

Code starting with the faulting instruction
===========================================
   0:	74 52                	je     0x54
   2:	be ff ff ff ff       	mov    $0xffffffff,%esi
   7:	48 c7 c7 00 0b 98 b8 	mov    $0xffffffffb8980b00,%rdi
   e:	e8 f4 62 3b 02       	call   0x23b6307
  13:	85 c0                	test   %eax,%eax
  15:	75                   	.byte 0x75
[   25.971521][    C0] RSP: 0018:ffa00000005477f0 EFLAGS: 00000202
[   25.971524][    C0] RAX: 0000000000000001 RBX: 0000000000000001 RCX: 0000000000000001
[   25.971525][    C0] RDX: ffffffffb8994280 RSI: 1ffffffff713285e RDI: ffffffffb89942f0
[   25.971526][    C0] RBP: 000000000000000a R08: 00000000b0c050d1 R09: 0000000000000000
[   25.971527][    C0] R10: 0000000000000000 R11: 0000000000000001 R12: ffa0000000547860
[   25.971528][    C0] R13: 000000000000000a R14: 00000000f998b823 R15: ff11000034938230
[   25.971530][    C0]  stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   25.971533][    C0]  kasan_save_stack (mm/kasan/common.c:58)
[   25.971534][    C0]  ? kasan_save_stack (mm/kasan/common.c:57)
[   25.971536][    C0]  ? kasan_save_track (mm/kasan/common.c:78)
[   25.971538][    C0]  ? __kasan_slab_alloc (mm/kasan/common.c:340 mm/kasan/common.c:366)
[   25.971539][    C0]  ? kmem_cache_alloc_noprof (./include/linux/kasan.h:253 mm/slub.c:4683 mm/slub.c:4996 mm/slub.c:5010)
[   25.971541][    C0]  ? copy_signal (kernel/fork.c:1746 (discriminator 7))
[   25.971542][    C0]  ? copy_process (kernel/fork.c:2304)
[   25.971543][    C0]  ? kernel_clone (kernel/fork.c:2766)
[   25.971545][    C0]  ? __do_sys_clone (kernel/fork.c:2908)
[   25.971546][    C0]  ? do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   25.971547][    C0]  ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   25.971552][    C0]  kasan_save_track (mm/kasan/common.c:78)
[   25.971554][    C0]  __kasan_slab_alloc (mm/kasan/common.c:340 mm/kasan/common.c:366)
[   25.971557][    C0]  kmem_cache_alloc_noprof (./include/linux/kasan.h:253 mm/slub.c:4683 mm/slub.c:4996 mm/slub.c:5010)
[   25.971559][    C0]  ? copy_signal (kernel/fork.c:1746 (discriminator 7))
[   25.971561][    C0]  copy_signal (kernel/fork.c:1746 (discriminator 7))
[   25.971563][    C0]  ? _raw_spin_unlock_irq (./include/linux/spinlock_api_smp.h:219 kernel/locking/spinlock.c:229)
[   25.971565][    C0]  ? _raw_spin_unlock_irq (./include/linux/spinlock_api_smp.h:220 (discriminator 1) kernel/locking/spinlock.c:229 (discriminator 1))
[   25.971567][    C0]  copy_process (kernel/fork.c:2304)
[   25.971568][    C0]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   25.971571][    C0]  ? pidfd_prepare (./include/linux/list.h:1037 (discriminator 3) ./include/linux/pid.h:98 (discriminator 3) kernel/fork.c:1936 (discriminator 3))
[   25.971573][    C0]  ? sock_set_timestamping (net/core/sock.c:913)
[   25.971576][    C0]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   25.971578][    C0]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   25.971580][    C0]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   25.971582][    C0]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   25.971584][    C0]  kernel_clone (kernel/fork.c:2766)
[   25.971586][    C0]  ? create_io_thread (kernel/fork.c:2704)
[   25.971588][    C0]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   25.971590][    C0]  __do_sys_clone (kernel/fork.c:2908)
[   25.971589][   T12] br3: port 3(w1.20) entered disabled state
[   25.971591][    C0]  ? kernel_clone (./include/trace/events/sched.h:396 (discriminator 19))
[   25.971594][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.971596][    C0]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   25.971598][    C0]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   25.971599][    C0]  ? irq_exit_rcu (kernel/softirq.c:786)
[   25.971601][    C0]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   25.971602][    C0] RIP: 0033:0x7f38a19a6126
[   25.971605][    C0] Code: 7d e0 e8 7d af f5 ff 45 31 c0 31 d2 31 f6 64 48 8b 04 25 10 00 00 00 bf 11 00 20 01 4c 8d 90 d0 02 00 00 b8 38 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 5a 89 c3 85 c0 75 2f 64 48 8b 04 25 10 00 00
All code
========
   0:	7d e0                	jge    0xffffffffffffffe2
   2:	e8 7d af f5 ff       	call   0xfffffffffff5af84
   7:	45 31 c0             	xor    %r8d,%r8d
   a:	31 d2                	xor    %edx,%edx
   c:	31 f6                	xor    %esi,%esi
   e:	64 48 8b 04 25 10 00 	mov    %fs:0x10,%rax
  15:	00 00 
  17:	bf 11 00 20 01       	mov    $0x1200011,%edi
  1c:	4c 8d 90 d0 02 00 00 	lea    0x2d0(%rax),%r10
  23:	b8 38 00 00 00       	mov    $0x38,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 5a                	ja     0x8c
  32:	89 c3                	mov    %eax,%ebx
  34:	85 c0                	test   %eax,%eax
  36:	75 2f                	jne    0x67
  38:	64                   	fs
  39:	48                   	rex.W
  3a:	8b                   	.byte 0x8b
  3b:	04 25                	add    $0x25,%al
  3d:	10 00                	adc    %al,(%rax)
	...

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 5a                	ja     0x62
   8:	89 c3                	mov    %eax,%ebx
   a:	85 c0                	test   %eax,%eax
   c:	75 2f                	jne    0x3d
   e:	64                   	fs
   f:	48                   	rex.W
  10:	8b                   	.byte 0x8b
  11:	04 25                	add    $0x25,%al
  13:	10 00                	adc    %al,(%rax)
	...
[   25.971606][    C0] RSP: 002b:00007ffc313f2800 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[   25.971608][    C0] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f38a19a6126
[   25.971608][    C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011
[   25.971609][    C0] RBP: 00007ffc313f2820 R08: 0000000000000000 R09: 00007ffc313f2bb0
[   25.971610][    C0] R10: 00007f38a1204490 R11: 0000000000000246 R12: 0000000000000007


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