======================================
| [    9.422642][  T186] softirqs last disabled at (43893): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [    9.422645][  T186] Preemption disabled at:
| [    9.422646][  T186] 0x0
| [    9.422661][  T186] Tainted: [W]=WARN
[    9.422662][  T186] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.422663][  T186] Call Trace:
[    9.422665][  T186]  <TASK>
[    9.422667][  T186]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[    9.422673][  T186]  __might_resched.cold (kernel/sched/core.c:9234)
[    9.422677][  T186]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[    9.422682][  T186]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[    9.422687][  T186]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[    9.422689][  T186]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[    9.422695][  T186]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[    9.422698][  T186]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[    9.422701][  T186]  put_chars (drivers/char/virtio_console.c:1176)
[    9.422704][  T186]  ? __send_to_port (drivers/char/virtio_console.c:654)
[    9.422705][  T186]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[    9.422710][  T186]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[    9.422715][  T186]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[    9.422721][  T186]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[    9.422723][  T186]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.422726][  T186]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[    9.422730][  T186]  console_emit_next_record (kernel/printk/printk.c:3183)
[    9.422734][  T186]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[    9.422736][  T186]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[    9.422739][  T186]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.422741][  T186]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[    9.422745][  T186]  console_flush_one_record (kernel/printk/printk.c:3268)
[    9.422749][  T186]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[    9.422751][  T186]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[    9.422757][  T186]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[    9.422759][  T186]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[    9.422761][  T186]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.422764][  T186]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[    9.422767][  T186]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[    9.422769][  T186]  ? vprintk_emit (kernel/printk/printk.c:2478)
[    9.422772][  T186]  vprintk_emit (kernel/printk/printk.c:2479)
[    9.422776][  T186]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[    9.422780][  T186]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[    9.422783][  T186]  _printk (kernel/printk/printk.c:2504)
[    9.422787][  T186]  ? snapshot_read.cold (user.c:?)
[    9.422790][  T186]  ? do_raw_spin_lock (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:1301 ./include/asm-generic/qspinlock.h:112 kernel/locking/spinlock_debug.c:116)
[    9.422793][  T186]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[    9.422797][  T186]  ? do_raw_spin_lock (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:1301 ./include/asm-generic/qspinlock.h:112 kernel/locking/spinlock_debug.c:116)
[    9.422800][  T186]  do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4))
[    9.422803][  T186]  ? exit_notify (kernel/exit.c:780)
[    9.422805][  T186]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[    9.422808][  T186]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.422812][  T186]  do_group_exit (kernel/exit.c:1151)
[    9.422815][  T186]  __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160)
[    9.422817][  T186]  x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232)
[    9.422819][  T186]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[    9.422823][  T186]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[    9.422826][  T186]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.422828][  T186] RIP: 0033:0x7f67ded6a1b8
[    9.422830][  T186] Code: Unable to access opcode bytes at 0x7f67ded6a18e.

Code starting with the faulting instruction
===========================================
[    9.422832][  T186] RSP: 002b:00007fff836cc198 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[    9.422834][  T186] RAX: ffffffffffffffda RBX: 00007f67dee9af88 RCX: 00007f67ded6a1b8
[    9.422835][  T186] RDX: 00007f67deab4fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000
[    9.422836][  T186] RBP: 00007fff836cc1f0 R08: 0000000000000000 R09: 0000000000008010
[    9.422837][  T186] R10: 00007fff836cbfb0 R11: 0000000000000246 R12: 0000000000000001
[    9.422838][  T186] R13: 0000000000000000 R14: 00007f67dee99680 R15: 00007f67dee9afa0
| [   10.604776][  T237] softirqs last disabled at (22156): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   10.604779][  T237] Preemption disabled at:
| [   10.604779][  T237] vprintk_emit (kernel/printk/printk.c:2471)
| [   10.604789][  T237] Tainted: [W]=WARN
[   10.604790][  T237] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.604792][  T237] Call Trace:
[   10.604794][  T237]  <TASK>
[   10.604795][  T237]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   10.604801][  T237]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   10.604804][  T237]  __might_resched.cold (kernel/sched/core.c:9234)
[   10.604808][  T237]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   10.604813][  T237]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   10.604818][  T237]  __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))
[   10.604820][  T237]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.604826][  T237]  ? 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)
[   10.604829][  T237]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.604832][  T237]  put_chars (drivers/char/virtio_console.c:1176)
[   10.604835][  T237]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   10.604839][  T237]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   10.604843][  T237]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   10.604846][  T237]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   10.604847][  T237]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.604849][  T237]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.604853][  T237]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   10.604855][  T237]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   10.604858][  T237]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.604862][  T237]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.604866][  T237]  console_emit_next_record (kernel/printk/printk.c:3183)
[   10.604870][  T237]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   10.604872][  T237]  ? 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))
[   10.604875][  T237]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.604878][  T237]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.604881][  T237]  console_flush_one_record (kernel/printk/printk.c:3268)
[   10.604886][  T237]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   10.604887][  T237]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.604893][  T237]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   10.604895][  T237]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   10.604897][  T237]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.604900][  T237]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   10.604903][  T237]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   10.604905][  T237]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   10.604911][  T237]  vprintk_emit (kernel/printk/printk.c:2479)
[   10.604916][  T237]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   10.604918][  T237]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   10.604920][  T237]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   10.604924][  T237]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   10.604928][  T237]  _printk (kernel/printk/printk.c:2504)
[   10.604931][  T237]  ? snapshot_read.cold (user.c:?)
[   10.604935][  T237]  ? br_multicast_flood (??:?) bridge
[   10.604949][  T237]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   10.604951][  T237]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   10.604952][  T237]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   10.604956][  T237] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   10.604967][  T237] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   10.604976][  T237] new_nbp (net/bridge/br_if.c:449) bridge
[   10.604986][  T237] br_add_if (net/bridge/br_if.c:592) bridge
[   10.604993][  T237]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   10.604997][  T237]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   10.605000][  T237]  ? __kernel_text_address (kernel/extable.c:79)
[   10.605004][  T237]  do_set_master (net/core/rtnetlink.c:3071)
[   10.605009][  T237]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   10.605012][  T237]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   10.605015][  T237]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   10.605017][  T237]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   10.605019][  T237]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   10.605022][  T237]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   10.605025][  T237]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   10.605027][  T237]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   10.605030][  T237]  ? kasan_save_stack (mm/kasan/common.c:58)
[   10.605033][  T237]  ? kasan_save_stack (mm/kasan/common.c:57)
[   10.605035][  T237]  ? kasan_save_track (mm/kasan/common.c:78)
[   10.605037][  T237]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.605039][  T237]  ? netlink_seq_next (net/netlink/af_netlink.c:2685)
[   10.605042][  T237]  ? ___sys_sendmsg (net/socket.c:2757)
[   10.605047][  T237]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   10.605049][  T237]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   10.605051][  T237]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.605054][  T237]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.605055][  T237]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.605057][  T237]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.605060][  T237]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   10.605063][  T237]  ? __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)
[   10.605065][  T237]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   10.605067][  T237]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   10.605071][  T237]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   10.605072][  T237]  ? nla_get_range_signed (lib/nlattr.c:270)
[   10.605077][  T237]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   10.605083][  T237]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   10.605088][  T237]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   10.605090][  T237]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.605095][  T237]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   10.605097][  T237]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   10.605099][  T237]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   10.605101][  T237]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   10.605104][  T237]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   10.605106][  T237]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   10.605110][  T237]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   10.605111][  T237]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.605115][  T237]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   10.605117][  T237]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   10.605121][  T237]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   10.605123][  T237]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   10.605126][  T237]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   10.605132][  T237]  ? 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))
[   10.605133][  T237]  ? 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))
[   10.605138][  T237]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   10.605142][  T237]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   10.605144][  T237]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.605148][  T237]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   10.605152][  T237]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   10.605156][  T237]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   10.605161][  T237]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   10.605164][  T237]  ? copy_msghdr_from_user (net/socket.c:2650)
[   10.605166][  T237]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   10.605168][  T237]  ? move_addr_to_kernel (net/socket.c:258)
[   10.605175][  T237]  ___sys_sendmsg (net/socket.c:2767)
[   10.605178][  T237]  ? copy_msghdr_from_user (net/socket.c:2619)
[   10.605194][  T237]  __sys_sendmsg (net/socket.c:2799)
[   10.605197][  T237]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   10.605203][  T237]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.605207][  T237]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   10.605209][  T237]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   10.605212][  T237]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.605215][  T237] RIP: 0033:0x7f71517bf54e
[   10.605219][  T237] 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
[   10.605221][  T237] RSP: 002b:00007ffc37c8caa0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   10.605224][  T237] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f71517bf54e
[   10.605225][  T237] RDX: 0000000000000000 RSI: 00007ffc37c8cb50 RDI: 0000000000000005
[   10.605226][  T237] RBP: 00007ffc37c8cab0 R08: 0000000000000000 R09: 0000000000000000
[   10.605227][  T237] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9139e4
[   10.605228][  T237] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffc37c8d210
| [   16.383886][  T276] softirqs last disabled at (27681): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   16.383889][  T276] Preemption disabled at:
| [   16.383889][  T276] vprintk_emit (kernel/printk/printk.c:2471)
| [   16.383899][  T276] Tainted: [W]=WARN
[   16.383900][  T276] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.383901][  T276] Call Trace:
[   16.383903][  T276]  <TASK>
[   16.383904][  T276]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   16.383914][  T276]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   16.383917][  T276]  __might_resched.cold (kernel/sched/core.c:9234)
[   16.383922][  T276]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   16.383926][  T276]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   16.383932][  T276]  __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))
[   16.383934][  T276]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   16.383941][  T276]  ? 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)
[   16.383944][  T276]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   16.383947][  T276]  put_chars (drivers/char/virtio_console.c:1176)
[   16.383949][  T276]  ? desc_read_finalized_seq (kernel/printk/printk_ringbuffer.c:1934)
[   16.383951][  T276]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   16.383954][  T276]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   16.383957][  T276]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   16.383962][  T276]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   16.383964][  T276]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   16.383966][  T276]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   16.383971][  T276]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   16.383972][  T276]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   16.383975][  T276]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.383978][  T276]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   16.383982][  T276]  console_emit_next_record (kernel/printk/printk.c:3183)
[   16.383986][  T276]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   16.383988][  T276]  ? 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))
[   16.383991][  T276]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.383993][  T276]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   16.383997][  T276]  console_flush_one_record (kernel/printk/printk.c:3268)
[   16.384001][  T276]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   16.384003][  T276]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   16.384008][  T276]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   16.384011][  T276]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   16.384013][  T276]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.384015][  T276]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   16.384019][  T276]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   16.384021][  T276]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   16.384024][  T276]  vprintk_emit (kernel/printk/printk.c:2479)
[   16.384028][  T276]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   16.384034][  T276]  ? 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
[   16.384038][  T276]  _printk (kernel/printk/printk.c:2504)
[   16.384042][  T276]  ? snapshot_read.cold (user.c:?)
[   16.384048][  T276]  ? 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)
[   16.384051][  T276] gact_init_module (net/sched/act_gact.c:180) act_gact
[   16.384054][  T276]  do_one_initcall (init/main.c:1357)
[   16.384056][  T276]  ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10)
[   16.384061][  T276]  ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1))
[   16.384064][  T276]  ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178)
[   16.384069][  T276]  do_init_module (kernel/module/main.c:3117)
[   16.384073][  T276]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   16.384077][  T276]  ? free_module (./include/trace/events/module.h:50 (discriminator 19))
[   16.384080][  T276]  ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792)
[   16.384084][  T276]  load_module (kernel/module/main.c:3593)
[   16.384092][  T276]  ? layout_and_allocate.isra.0 (kernel/module/main.c:3016)
[   16.384096][  T276]  ? __ia32_sys_fsconfig (??:?)
[   16.384099][  T276]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   16.384102][  T276]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   16.384106][  T276]  init_module_from_file (kernel/module/main.c:3790)
[   16.384109][  T276]  ? __do_sys_init_module (kernel/module/main.c:3664)
[   16.384117][  T276]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   16.384121][  T276]  ? 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)
[   16.384124][  T276]  idempotent_init_module (kernel/module/main.c:3802)
[   16.384127][  T276]  ? init_module_from_file (kernel/module/main.c:3791)
[   16.384133][  T276]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.384136][  T276]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   16.384142][  T276]  __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812)
[   16.384144][  T276]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   16.384148][  T276]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   16.384150][  T276]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   16.384153][  T276]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   16.384155][  T276] RIP: 0033:0x7f60072c837d
[   16.384159][  T276] 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
[   16.384160][  T276] RSP: 002b:00007ffe9abd8c18 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[   16.384163][  T276] RAX: ffffffffffffffda RBX: 000055cfca53d810 RCX: 00007f60072c837d
[   16.384165][  T276] RDX: 0000000000000000 RSI: 000055cfacb10ffd RDI: 0000000000000000
[   16.384166][  T276] RBP: 00007ffe9abd8cb0 R08: 0000000000000000 R09: 0000000000000000
[   16.384167][  T276] R10: 0000000000000000 R11: 0000000000000246 R12: 000055cfacb10ffd
[   16.384168][  T276] R13: 000055cfca53d960 R14: 0000000000040000 R15: 0000000000000000
| [   21.615622][  T609] softirqs last disabled at (21174): br_stp_disable_bridge (./include/linux/spinlock.h:353 net/bridge/br_stp_if.c:73) bridge
| [   21.615630][  T609] Preemption disabled at:
| [   21.615630][  T609] 0x0
| [   21.615640][  T609] Tainted: [W]=WARN
[   21.615641][  T609] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   21.615643][  T609] Call Trace:
[   21.615645][  T609]  <TASK>
[   21.615646][  T609]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   21.615653][  T609]  __might_resched.cold (kernel/sched/core.c:9234)
[   21.615658][  T609]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   21.615662][  T609]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   21.615667][  T609]  __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))
[   21.615670][  T609]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   21.615675][  T609]  ? 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)
[   21.615678][  T609]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   21.615681][  T609]  put_chars (drivers/char/virtio_console.c:1176)
[   21.615684][  T609]  ? desc_read_finalized_seq (kernel/printk/printk_ringbuffer.c:1934)
[   21.615686][  T609]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   21.615689][  T609]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   21.615698][  T609]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   21.615702][  T609]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   21.615705][  T609]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.615707][  T609]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.615712][  T609]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   21.615713][  T609]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   21.615716][  T609]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.615720][  T609]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   21.615724][  T609]  console_emit_next_record (kernel/printk/printk.c:3183)
[   21.615728][  T609]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   21.615730][  T609]  ? 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))
[   21.615733][  T609]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.615735][  T609]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   21.615739][  T609]  console_flush_one_record (kernel/printk/printk.c:3268)
[   21.615743][  T609]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   21.615745][  T609]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.615750][  T609]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   21.615753][  T609]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   21.615755][  T609]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.615758][  T609]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   21.615761][  T609]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   21.615763][  T609]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   21.615766][  T609]  vprintk_emit (kernel/printk/printk.c:2479)
[   21.615771][  T609]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   21.615774][  T609]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   21.615777][  T609]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   21.615780][  T609]  _printk (kernel/printk/printk.c:2504)
[   21.615784][  T609]  ? snapshot_read.cold (user.c:?)
[   21.615792][  T609] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   21.615802][  T609] br_stp_disable_port (net/bridge/br_stp_if.c:106) bridge
[   21.615811][  T609] br_stp_disable_bridge (net/bridge/br_stp_if.c:76) bridge
[   21.615819][  T609] br_dev_stop (net/bridge/br_device.c:193) bridge
[   21.615828][  T609]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   21.615831][  T609]  __dev_close_many (net/core/dev.c:1798)
[   21.615835][  T609]  ? netif_open (net/core/dev.c:1755)
[   21.615837][  T609]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   21.615839][  T609]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   21.615843][  T609]  __dev_change_flags (net/core/dev.c:1811 net/core/dev.c:9810)
[   21.615847][  T609]  ? netif_set_allmulti (./include/net/netdev_lock.h:30 (discriminator 1))
[   21.615850][  T609]  ? __kernel_text_address (kernel/extable.c:79)
[   21.615852][  T609]  ? write_profile (profile.c:?)
[   21.615855][  T609]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   21.615860][  T609]  netif_change_flags (net/core/dev.c:9877)
[   21.615864][  T609]  do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1))
[   21.615867][  T609]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   21.615869][  T609]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   21.615870][  T609]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   21.615872][  T609]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   21.615876][  T609]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   21.615879][  T609]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   21.615880][  T609]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   21.615883][  T609]  ? kasan_save_stack (mm/kasan/common.c:58)
[   21.615886][  T609]  ? kasan_save_stack (mm/kasan/common.c:57)
[   21.615888][  T609]  ? kasan_save_track (mm/kasan/common.c:78)
[   21.615890][  T609]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.615892][  T609]  ? netlink_seq_next (net/netlink/af_netlink.c:2685)
[   21.615895][  T609]  ? ___sys_sendmsg (net/socket.c:2757)
[   21.615900][  T609]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   21.615902][  T609]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   21.615904][  T609]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.615907][  T609]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   21.615910][  T609]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.615913][  T609]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.615916][  T609]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   21.615920][  T609]  ? __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)
[   21.615923][  T609]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   21.615925][  T609]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   21.615929][  T609]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   21.615934][  T609]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   21.615939][  T609]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   21.615945][  T609]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   21.615947][  T609]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.615951][  T609]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   21.615953][  T609]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   21.615955][  T609]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   21.615957][  T609]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   21.615961][  T609]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   21.615963][  T609]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   21.615966][  T609]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   21.615967][  T609]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.615972][  T609]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   21.615974][  T609]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   21.615977][  T609]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   21.615979][  T609]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   21.615982][  T609]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   21.615988][  T609]  ? 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))
[   21.615990][  T609]  ? 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))
[   21.615994][  T609]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   21.615998][  T609]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   21.616000][  T609]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.616004][  T609]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   21.616008][  T609]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   21.616012][  T609]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   21.616018][  T609]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   21.616020][  T609]  ? copy_msghdr_from_user (net/socket.c:2650)
[   21.616023][  T609]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   21.616024][  T609]  ? move_addr_to_kernel (net/socket.c:258)
[   21.616032][  T609]  ___sys_sendmsg (net/socket.c:2767)
[   21.616034][  T609]  ? copy_msghdr_from_user (net/socket.c:2619)
[   21.616051][  T609]  __sys_sendmsg (net/socket.c:2799)
[   21.616053][  T609]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   21.616060][  T609]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.616064][  T609]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   21.616066][  T609]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   21.616069][  T609]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   21.616071][  T609] RIP: 0033:0x7f09e55dc54e
[   21.616074][  T609] 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
[   21.616076][  T609] RSP: 002b:00007fffdd60b3f0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   21.616078][  T609] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f09e55dc54e
[   21.616080][  T609] RDX: 0000000000000000 RSI: 00007fffdd60b4a0 RDI: 0000000000000005
[   21.616081][  T609] RBP: 00007fffdd60b400 R08: 0000000000000000 R09: 0000000000000000
[   21.616082][  T609] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9139ef


Finger prints:
br_stp_disable_bridge:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print
__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