======================================
| [   10.084771][  T186] softirqs last disabled at (38149): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   10.084773][  T186] Preemption disabled at:
| [   10.084774][  T186] 0x0
| [   10.084784][  T186] Tainted: [W]=WARN
[   10.084785][  T186] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.084787][  T186] Call Trace:
[   10.084789][  T186]  <TASK>
[   10.084791][  T186]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   10.084797][  T186]  __might_resched.cold (kernel/sched/core.c:9234)
[   10.084802][  T186]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   10.084805][  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)
[   10.084811][  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))
[   10.084813][  T186]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.084819][  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)
[   10.084822][  T186]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.084825][  T186]  put_chars (drivers/char/virtio_console.c:1176)
[   10.084828][  T186]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   10.084829][  T186]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   10.084834][  T186]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   10.084839][  T186]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   10.084845][  T186]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   10.084847][  T186]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.084850][  T186]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.084854][  T186]  console_emit_next_record (kernel/printk/printk.c:3183)
[   10.084858][  T186]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   10.084860][  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))
[   10.084863][  T186]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.084865][  T186]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.084869][  T186]  console_flush_one_record (kernel/printk/printk.c:3268)
[   10.084873][  T186]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   10.084875][  T186]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.084880][  T186]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   10.084883][  T186]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   10.084885][  T186]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.084888][  T186]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   10.084891][  T186]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   10.084893][  T186]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   10.084896][  T186]  vprintk_emit (kernel/printk/printk.c:2479)
[   10.084900][  T186]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   10.084904][  T186]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.084907][  T186]  _printk (kernel/printk/printk.c:2504)
[   10.084911][  T186]  ? snapshot_read.cold (user.c:?)
[   10.084914][  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)
[   10.084916][  T186]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   10.084920][  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)
[   10.084923][  T186]  do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4))
[   10.084926][  T186]  ? exit_notify (kernel/exit.c:780)
[   10.084928][  T186]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   10.084931][  T186]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.084935][  T186]  do_group_exit (kernel/exit.c:1151)
[   10.084938][  T186]  __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160)
[   10.084940][  T186]  x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232)
[   10.084942][  T186]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   10.084945][  T186]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   10.084949][  T186]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.084951][  T186] RIP: 0033:0x7f43010c21b8
[   10.084954][  T186] Code: Unable to access opcode bytes at 0x7f43010c218e.

Code starting with the faulting instruction
===========================================
[   10.084955][  T186] RSP: 002b:00007ffee2035608 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[   10.084957][  T186] RAX: ffffffffffffffda RBX: 00007f43011f2f88 RCX: 00007f43010c21b8
[   10.084959][  T186] RDX: 00007f4300e0cfc8 RSI: fffffffffffffeb8 RDI: 0000000000000000
[   10.084959][  T186] RBP: 00007ffee2035660 R08: 0000000000000000 R09: 0000000000008010
[   10.084960][  T186] R10: 00007ffee2035420 R11: 0000000000000246 R12: 0000000000000001
[   10.084961][  T186] R13: 0000000000000000 R14: 00007f43011f1680 R15: 00007f43011f2fa0
| [   11.779416][  T255] softirqs last disabled at (19472): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   11.779420][  T255] Preemption disabled at:
| [   11.779421][  T255] vprintk_emit (kernel/printk/printk.c:2471)
| [   11.779433][  T255] Tainted: [W]=WARN
[   11.779434][  T255] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.779437][  T255] Call Trace:
[   11.779439][  T255]  <TASK>
[   11.779441][  T255]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   11.779449][  T255]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   11.779452][  T255]  __might_resched.cold (kernel/sched/core.c:9234)
[   11.779459][  T255]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   11.779465][  T255]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   11.779472][  T255]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   11.779476][  T255]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.779485][  T255]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   11.779488][  T255]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.779494][  T255]  put_chars (drivers/char/virtio_console.c:1176)
[   11.779498][  T255]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   11.779506][  T255]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   11.779513][  T255]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   11.779517][  T255]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   11.779525][  T255]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.779527][  T255]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.779534][  T255]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   11.779538][  T255]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   11.779543][  T255]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.779549][  T255]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.779556][  T255]  console_emit_next_record (kernel/printk/printk.c:3183)
[   11.779562][  T255]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   11.779565][  T255]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   11.779570][  T255]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.779574][  T255]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.779581][  T255]  console_flush_one_record (kernel/printk/printk.c:3268)
[   11.779588][  T255]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   11.779591][  T255]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.779600][  T255]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   11.779604][  T255]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   11.779607][  T255]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.779611][  T255]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   11.779617][  T255]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   11.779620][  T255]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   11.779625][  T255]  vprintk_emit (kernel/printk/printk.c:2479)
[   11.779632][  T255]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   11.779636][  T255]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.779638][  T255]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   11.779644][  T255]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   11.779650][  T255]  _printk (kernel/printk/printk.c:2504)
[   11.779655][  T255]  ? snapshot_read.cold (user.c:?)
[   11.779662][  T255]  ? br_multicast_flood (??:?) bridge
[   11.779680][  T255]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   11.779683][  T255]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   11.779685][  T255]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   11.779693][  T255] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   11.779710][  T255] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   11.779724][  T255] new_nbp (net/bridge/br_if.c:449) bridge
[   11.779741][  T255] br_add_if (net/bridge/br_if.c:592) bridge
[   11.779753][  T255]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   11.779759][  T255]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   11.779763][  T255]  ? __kernel_text_address (kernel/extable.c:79)
[   11.779770][  T255]  do_set_master (net/core/rtnetlink.c:3071)
[   11.779778][  T255]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   11.779784][  T255]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   11.779788][  T255]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   11.779790][  T255]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   11.779794][  T255]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   11.779799][  T255]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   11.779803][  T255]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   11.779806][  T255]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   11.779810][  T255]  ? kasan_save_stack (mm/kasan/common.c:58)
[   11.779814][  T255]  ? kasan_save_stack (mm/kasan/common.c:57)
[   11.779817][  T255]  ? kasan_save_track (mm/kasan/common.c:78)
[   11.779822][  T255]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.779824][  T255]  ? netlink_seq_next (net/netlink/af_netlink.c:2685)
[   11.779829][  T255]  ? ___sys_sendmsg (net/socket.c:2757)
[   11.779836][  T255]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.779839][  T255]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   11.779844][  T255]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.779847][  T255]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.779850][  T255]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.779852][  T255]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.779856][  T255]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   11.779862][  T255]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   11.779864][  T255]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   11.779868][  T255]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   11.779874][  T255]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   11.779877][  T255]  ? nla_get_range_signed (lib/nlattr.c:270)
[   11.779886][  T255]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   11.779896][  T255]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   11.779905][  T255]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.779909][  T255]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.779917][  T255]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.779920][  T255]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   11.779923][  T255]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.779926][  T255]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.779933][  T255]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.779936][  T255]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   11.779942][  T255]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.779944][  T255]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.779952][  T255]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.779955][  T255]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   11.779961][  T255]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   11.779964][  T255]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.779969][  T255]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   11.779981][  T255]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   11.779983][  T255]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   11.779991][  T255]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   11.779998][  T255]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   11.780002][  T255]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.780010][  T255]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   11.780017][  T255]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   11.780023][  T255]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   11.780031][  T255]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   11.780035][  T255]  ? copy_msghdr_from_user (net/socket.c:2650)
[   11.780038][  T255]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   11.780041][  T255]  ? move_addr_to_kernel (net/socket.c:258)
[   11.780054][  T255]  ___sys_sendmsg (net/socket.c:2767)
[   11.780059][  T255]  ? copy_msghdr_from_user (net/socket.c:2619)
[   11.780089][  T255]  __sys_sendmsg (net/socket.c:2799)
[   11.780093][  T255]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   11.780104][  T255]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.780110][  T255]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   11.780113][  T255]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   11.780118][  T255]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.780122][  T255] RIP: 0033:0x7f955c9a254e
[   11.780126][  T255] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   11.780129][  T255] RSP: 002b:00007ffd27a34130 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   11.780133][  T255] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f955c9a254e
[   11.780135][  T255] RDX: 0000000000000000 RSI: 00007ffd27a341e0 RDI: 0000000000000005
[   11.780136][  T255] RBP: 00007ffd27a34140 R08: 0000000000000000 R09: 0000000000000000
[   11.780137][  T255] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9163ea
[   11.780139][  T255] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffd27a348a0
| [   19.922368][  T323] softirqs last disabled at (15313): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   19.922370][  T323] Preemption disabled at:
| [   19.922371][  T323] vprintk_emit (kernel/printk/printk.c:2471)
| [   19.922380][  T323] Tainted: [W]=WARN
[   19.922381][  T323] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.922382][  T323] Call Trace:
[   19.922384][  T323]  <TASK>
[   19.922386][  T323]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   19.922391][  T323]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   19.922394][  T323]  __might_resched.cold (kernel/sched/core.c:9234)
[   19.922398][  T323]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   19.922403][  T323]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   19.922408][  T323]  __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))
[   19.922410][  T323]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   19.922415][  T323]  ? 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)
[   19.922418][  T323]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   19.922421][  T323]  put_chars (drivers/char/virtio_console.c:1176)
[   19.922424][  T323]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   19.922426][  T323]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   19.922430][  T323]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   19.922435][  T323]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   19.922442][  T323]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   19.922444][  T323]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.922446][  T323]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   19.922450][  T323]  console_emit_next_record (kernel/printk/printk.c:3183)
[   19.922454][  T323]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   19.922456][  T323]  ? 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))
[   19.922459][  T323]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.922462][  T323]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   19.922466][  T323]  console_flush_one_record (kernel/printk/printk.c:3268)
[   19.922470][  T323]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   19.922471][  T323]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   19.922477][  T323]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   19.922480][  T323]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   19.922481][  T323]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.922484][  T323]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   19.922487][  T323]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   19.922489][  T323]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   19.922492][  T323]  vprintk_emit (kernel/printk/printk.c:2479)
[   19.922496][  T323]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   19.922498][  T323]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   19.922500][  T323]  ? netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   19.922503][  T323]  ? netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   19.922504][  T323]  ? ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   19.922507][  T323]  ? ___sys_sendmsg (net/socket.c:2767)
[   19.922508][  T323]  ? __sys_sendmsg (net/socket.c:2799)
[   19.922510][  T323]  ? do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   19.922515][  T323]  _printk (kernel/printk/printk.c:2504)
[   19.922519][  T323]  ? snapshot_read.cold (user.c:?)
[   19.922523][  T323]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   19.922527][  T323]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   19.922530][  T323]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   19.922533][  T323]  ? netdev_notice (net/core/dev.c:13194)
[   19.922536][  T323]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.922539][  T323]  ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1))
[   19.922547][  T323]  ? down_write_nested (kernel/locking/rwsem.c:1759)
[   19.922548][  T323]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   19.922550][  T323]  ? 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)
[   19.922554][  T323]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[   19.922559][  T323]  dev_set_allmulti (net/core/dev_api.c:315)
[   19.922562][  T323] del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341) bridge
[   19.922575][  T323]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   19.922581][  T323] br_del_if (net/bridge/br_if.c:732) bridge
[   19.922589][  T323]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   19.922592][  T323]  do_set_master (net/core/rtnetlink.c:3055)
[   19.922596][  T323]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   19.922599][  T323]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   19.922603][  T323]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   19.922604][  T323]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   19.922606][  T323]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   19.922610][  T323]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   19.922613][  T323]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   19.922614][  T323]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   19.922617][  T323]  ? kasan_save_stack (mm/kasan/common.c:58)
[   19.922620][  T323]  ? kasan_save_stack (mm/kasan/common.c:57)
[   19.922622][  T323]  ? kasan_save_track (mm/kasan/common.c:78)
[   19.922624][  T323]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   19.922626][  T323]  ? netlink_seq_next (net/netlink/af_netlink.c:2685)
[   19.922628][  T323]  ? ___sys_sendmsg (net/socket.c:2757)
[   19.922631][  T323]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   19.922633][  T323]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   19.922636][  T323]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.922638][  T323]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   19.922640][  T323]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.922641][  T323]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.922644][  T323]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   19.922646][  T323]  ? __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)
[   19.922649][  T323]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   19.922651][  T323]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   19.922654][  T323]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   19.922656][  T323]  ? nla_get_range_signed (lib/nlattr.c:270)
[   19.922661][  T323]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   19.922666][  T323]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   19.922671][  T323]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   19.922673][  T323]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   19.922677][  T323]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   19.922679][  T323]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   19.922681][  T323]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   19.922683][  T323]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   19.922687][  T323]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   19.922689][  T323]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   19.922692][  T323]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   19.922693][  T323]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   19.922697][  T323]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   19.922699][  T323]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   19.922703][  T323]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   19.922704][  T323]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   19.922707][  T323]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   19.922713][  T323]  ? 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))
[   19.922715][  T323]  ? 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))
[   19.922719][  T323]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   19.922722][  T323]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   19.922725][  T323]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   19.922729][  T323]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   19.922733][  T323]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   19.922736][  T323]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   19.922741][  T323]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   19.922744][  T323]  ? copy_msghdr_from_user (net/socket.c:2650)
[   19.922746][  T323]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   19.922747][  T323]  ? move_addr_to_kernel (net/socket.c:258)
[   19.922754][  T323]  ___sys_sendmsg (net/socket.c:2767)
[   19.922757][  T323]  ? copy_msghdr_from_user (net/socket.c:2619)
[   19.922772][  T323]  __sys_sendmsg (net/socket.c:2799)
[   19.922775][  T323]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   19.922781][  T323]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.922785][  T323]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   19.922786][  T323]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   19.922789][  T323]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   19.922792][  T323] RIP: 0033:0x7fa4e572b54e
[   19.922795][  T323] 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
[   19.922797][  T323] RSP: 002b:00007ffd902d8680 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   19.922799][  T323] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fa4e572b54e
[   19.922801][  T323] RDX: 0000000000000000 RSI: 00007ffd902d8730 RDI: 0000000000000005
[   19.922802][  T323] RBP: 00007ffd902d8690 R08: 0000000000000000 R09: 0000000000000000
[   19.922802][  T323] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9163f2
[   19.922803][  T323] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffd902d8df0
| [   22.046303][  T327] softirqs last disabled at (20282): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   22.046305][  T327] Preemption disabled at:
| [   22.046306][  T327] vprintk_emit (kernel/printk/printk.c:2471)
| [   22.046315][  T327] Tainted: [W]=WARN
[   22.046316][  T327] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   22.046318][  T327] Call Trace:
[   22.046320][  T327]  <TASK>
[   22.046322][  T327]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   22.046328][  T327]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   22.046330][  T327]  __might_resched.cold (kernel/sched/core.c:9234)
[   22.046335][  T327]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   22.046339][  T327]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   22.046344][  T327]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   22.046347][  T327]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   22.046353][  T327]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   22.046356][  T327]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   22.046359][  T327]  put_chars (drivers/char/virtio_console.c:1176)
[   22.046361][  T327]  ? prb_final_commit (kernel/printk/printk_ringbuffer.c:1842)
[   22.046363][  T327]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   22.046366][  T327]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   22.046370][  T327]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   22.046373][  T327]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   22.046376][  T327]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   22.046379][  T327]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   22.046381][  T327]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.046383][  T327]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.046387][  T327]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   22.046389][  T327]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   22.046392][  T327]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.046394][  T327]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   22.046398][  T327]  console_emit_next_record (kernel/printk/printk.c:3183)
[   22.046402][  T327]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   22.046404][  T327]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   22.046408][  T327]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.046410][  T327]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   22.046414][  T327]  console_flush_one_record (kernel/printk/printk.c:3268)
[   22.046418][  T327]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   22.046420][  T327]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.046425][  T327]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   22.046428][  T327]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   22.046430][  T327]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.046433][  T327]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   22.046436][  T327]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   22.046438][  T327]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   22.046441][  T327]  vprintk_emit (kernel/printk/printk.c:2479)
[   22.046445][  T327]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   22.046448][  T327]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   22.046451][  T327]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   22.046454][  T327]  _printk (kernel/printk/printk.c:2504)
[   22.046458][  T327]  ? snapshot_read.cold (user.c:?)
[   22.046462][  T327]  ? br_multicast_flood (??:?) bridge
[   22.046475][  T327]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   22.046476][  T327]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   22.046477][  T327]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   22.046482][  T327] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   22.046492][  T327] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   22.046501][  T327] new_nbp (net/bridge/br_if.c:449) bridge
[   22.046510][  T327] br_add_if (net/bridge/br_if.c:592) bridge
[   22.046517][  T327]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   22.046521][  T327]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   22.046525][  T327]  ? __kernel_text_address (kernel/extable.c:79)
[   22.046528][  T327]  do_set_master (net/core/rtnetlink.c:3071)
[   22.046533][  T327]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   22.046536][  T327]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   22.046539][  T327]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   22.046541][  T327]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   22.046543][  T327]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   22.046552][  T327]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   22.046554][  T327]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   22.046556][  T327]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   22.046559][  T327]  ? kasan_save_stack (mm/kasan/common.c:58)
[   22.046562][  T327]  ? kasan_save_stack (mm/kasan/common.c:57)
[   22.046563][  T327]  ? kasan_save_track (mm/kasan/common.c:78)
[   22.046566][  T327]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.046568][  T327]  ? netlink_seq_next (net/netlink/af_netlink.c:2685)
[   22.046571][  T327]  ? ___sys_sendmsg (net/socket.c:2757)
[   22.046576][  T327]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   22.046578][  T327]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   22.046580][  T327]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.046583][  T327]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   22.046584][  T327]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.046586][  T327]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.046588][  T327]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   22.046592][  T327]  ? __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)
[   22.046595][  T327]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   22.046597][  T327]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   22.046601][  T327]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   22.046602][  T327]  ? nla_get_range_signed (lib/nlattr.c:270)
[   22.046607][  T327]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   22.046613][  T327]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   22.046618][  T327]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   22.046620][  T327]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.046624][  T327]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   22.046626][  T327]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   22.046628][  T327]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   22.046630][  T327]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   22.046634][  T327]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   22.046636][  T327]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   22.046639][  T327]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   22.046640][  T327]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.046645][  T327]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   22.046647][  T327]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   22.046650][  T327]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   22.046652][  T327]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   22.046655][  T327]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   22.046661][  T327]  ? 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))
[   22.046663][  T327]  ? 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))
[   22.046667][  T327]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   22.046671][  T327]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   22.046673][  T327]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.046677][  T327]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   22.046681][  T327]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   22.046685][  T327]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   22.046690][  T327]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   22.046693][  T327]  ? copy_msghdr_from_user (net/socket.c:2650)
[   22.046695][  T327]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   22.046697][  T327]  ? move_addr_to_kernel (net/socket.c:258)
[   22.046704][  T327]  ___sys_sendmsg (net/socket.c:2767)
[   22.046707][  T327]  ? copy_msghdr_from_user (net/socket.c:2619)
[   22.046722][  T327]  __sys_sendmsg (net/socket.c:2799)
[   22.046725][  T327]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   22.046732][  T327]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.046735][  T327]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   22.046738][  T327]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   22.046741][  T327]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   22.046743][  T327] RIP: 0033:0x7f99e69b554e
[   22.046746][  T327] 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
[   22.046749][  T327] RSP: 002b:00007ffdb8e8f3f0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   22.046751][  T327] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f99e69b554e
[   22.046753][  T327] RDX: 0000000000000000 RSI: 00007ffdb8e8f4a0 RDI: 0000000000000005
[   22.046754][  T327] RBP: 00007ffdb8e8f400 R08: 0000000000000000 R09: 0000000000000000
[   22.046755][  T327] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9163f4
[   22.046756][  T327] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffdb8e8fb60
| [   24.738699][  T375] softirqs last disabled at (13558): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:109) bridge
| [   24.738706][  T375] Preemption disabled at:
| [   24.738707][  T375] 0x0
| [   24.738717][  T375] Tainted: [W]=WARN
[   24.738718][  T375] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.738720][  T375] Call Trace:
[   24.738722][  T375]  <TASK>
[   24.738723][  T375]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   24.738730][  T375]  __might_resched.cold (kernel/sched/core.c:9234)
[   24.738735][  T375]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   24.738739][  T375]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   24.738744][  T375]  __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))
[   24.738746][  T375]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   24.738752][  T375]  ? 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)
[   24.738755][  T375]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   24.738758][  T375]  put_chars (drivers/char/virtio_console.c:1176)
[   24.738761][  T375]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   24.738764][  T375]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   24.738768][  T375]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   24.738771][  T375]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   24.738775][  T375]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   24.738777][  T375]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   24.738779][  T375]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.738781][  T375]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.738785][  T375]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   24.738786][  T375]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   24.738791][  T375]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   24.738795][  T375]  console_emit_next_record (kernel/printk/printk.c:3183)
[   24.738799][  T375]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   24.738801][  T375]  ? 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))
[   24.738804][  T375]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.738806][  T375]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   24.738811][  T375]  console_flush_one_record (kernel/printk/printk.c:3268)
[   24.738815][  T375]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   24.738817][  T375]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.738822][  T375]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   24.738825][  T375]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   24.738827][  T375]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.738829][  T375]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   24.738833][  T375]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   24.738835][  T375]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   24.738838][  T375]  vprintk_emit (kernel/printk/printk.c:2479)
[   24.738842][  T375]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   24.738844][  T375]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   24.738847][  T375]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   24.738849][  T375]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   24.738853][  T375]  _printk (kernel/printk/printk.c:2504)
[   24.738856][  T375]  ? snapshot_read.cold (user.c:?)
[   24.738864][  T375] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   24.738875][  T375] br_stp_disable_port (net/bridge/br_stp_if.c:106) bridge
[   24.738885][  T375] br_device_event (net/bridge/br.c:111) bridge
[   24.738892][  T375]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   24.738896][  T375]  ? _sub_I_65535_1+0x4d0/0x4d0 stp
[   24.738902][  T375]  notifier_call_chain (kernel/notifier.c:85)
[   24.738908][  T375]  __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855)
[   24.738913][  T375]  ? netif_change_name (net/core/dev.c:1517)
[   24.738917][  T375]  ? netif_set_allmulti (./include/net/netdev_lock.h:30 (discriminator 1))
[   24.738920][  T375]  ? __kernel_text_address (kernel/extable.c:79)
[   24.738922][  T375]  ? write_profile (profile.c:?)
[   24.738924][  T375]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   24.738929][  T375]  netif_change_flags (net/core/dev.c:9882)
[   24.738933][  T375]  do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1))
[   24.738937][  T375]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   24.738939][  T375]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   24.738941][  T375]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   24.738942][  T375]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   24.738946][  T375]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   24.738948][  T375]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   24.738950][  T375]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   24.738953][  T375]  ? kasan_save_stack (mm/kasan/common.c:58)
[   24.738956][  T375]  ? kasan_save_stack (mm/kasan/common.c:57)
[   24.738957][  T375]  ? kasan_save_track (mm/kasan/common.c:78)
[   24.738960][  T375]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.738962][  T375]  ? netlink_seq_next (net/netlink/af_netlink.c:2685)
[   24.738965][  T375]  ? ___sys_sendmsg (net/socket.c:2757)
[   24.738970][  T375]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   24.738972][  T375]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   24.738974][  T375]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.738977][  T375]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   24.738978][  T375]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.738980][  T375]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.738982][  T375]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   24.738986][  T375]  ? __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)
[   24.738988][  T375]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   24.738990][  T375]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   24.738994][  T375]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   24.738995][  T375]  ? nla_get_range_signed (lib/nlattr.c:270)
[   24.739000][  T375]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   24.739005][  T375]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   24.739011][  T375]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   24.739013][  T375]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.739017][  T375]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   24.739019][  T375]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   24.739021][  T375]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   24.739023][  T375]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   24.739027][  T375]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   24.739029][  T375]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   24.739032][  T375]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   24.739033][  T375]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.739038][  T375]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   24.739040][  T375]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   24.739043][  T375]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   24.739045][  T375]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   24.739048][  T375]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   24.739054][  T375]  ? 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))
[   24.739055][  T375]  ? 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))
[   24.739060][  T375]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   24.739064][  T375]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   24.739066][  T375]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.739070][  T375]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   24.739074][  T375]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   24.739078][  T375]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   24.739084][  T375]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   24.739086][  T375]  ? copy_msghdr_from_user (net/socket.c:2650)
[   24.739088][  T375]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   24.739090][  T375]  ? move_addr_to_kernel (net/socket.c:258)
[   24.739097][  T375]  ___sys_sendmsg (net/socket.c:2767)
[   24.739100][  T375]  ? copy_msghdr_from_user (net/socket.c:2619)
[   24.739116][  T375]  __sys_sendmsg (net/socket.c:2799)
[   24.739119][  T375]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   24.739125][  T375]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.739129][  T375]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   24.739131][  T375]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   24.739135][  T375]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   24.739137][  T375] RIP: 0033:0x7f8ab7e0d54e
[   24.739139][  T375] 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
[   24.739142][  T375] RSP: 002b:00007fffa829e330 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   24.739144][  T375] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f8ab7e0d54e
[   24.739146][  T375] RDX: 0000000000000000 RSI: 00007fffa829e3e0 RDI: 0000000000000005
[   24.739147][  T375] RBP: 00007fffa829e340 R08: 0000000000000000 R09: 0000000000000000
[   24.739147][  T375] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9163f7


Finger prints:
br_device_event: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