======================================
| [    9.937540][  T187] softirqs last disabled at (41369): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [    9.937543][  T187] Preemption disabled at:
| [    9.937543][  T187] 0x0
| [    9.937554][  T187] Tainted: [W]=WARN
[    9.937555][  T187] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.937557][  T187] Call Trace:
[    9.937558][  T187]  <TASK>
[    9.937560][  T187]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[    9.937566][  T187]  __might_resched.cold (kernel/sched/core.c:9234)
[    9.937571][  T187]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[    9.937575][  T187]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[    9.937580][  T187]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[    9.937582][  T187]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[    9.937588][  T187]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[    9.937591][  T187]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[    9.937594][  T187]  put_chars (drivers/char/virtio_console.c:1176)
[    9.937597][  T187]  ? __send_to_port (drivers/char/virtio_console.c:654)
[    9.937598][  T187]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[    9.937603][  T187]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[    9.937608][  T187]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[    9.937615][  T187]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[    9.937617][  T187]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.937619][  T187]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[    9.937623][  T187]  console_emit_next_record (kernel/printk/printk.c:3183)
[    9.937627][  T187]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[    9.937629][  T187]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[    9.937632][  T187]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.937635][  T187]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[    9.937639][  T187]  console_flush_one_record (kernel/printk/printk.c:3268)
[    9.937643][  T187]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[    9.937645][  T187]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[    9.937653][  T187]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[    9.937656][  T187]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[    9.937658][  T187]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.937660][  T187]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[    9.937664][  T187]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[    9.937666][  T187]  ? vprintk_emit (kernel/printk/printk.c:2478)
[    9.937669][  T187]  vprintk_emit (kernel/printk/printk.c:2479)
[    9.937673][  T187]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[    9.937677][  T187]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[    9.937681][  T187]  _printk (kernel/printk/printk.c:2504)
[    9.937684][  T187]  ? snapshot_read.cold (user.c:?)
[    9.937687][  T187]  ? do_raw_spin_lock (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:1301 ./include/asm-generic/qspinlock.h:112 kernel/locking/spinlock_debug.c:116)
[    9.937690][  T187]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[    9.937694][  T187]  ? do_raw_spin_lock (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:1301 ./include/asm-generic/qspinlock.h:112 kernel/locking/spinlock_debug.c:116)
[    9.937696][  T187]  do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4))
[    9.937700][  T187]  ? exit_notify (kernel/exit.c:780)
[    9.937703][  T187]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[    9.937708][  T187]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.937713][  T187]  do_group_exit (kernel/exit.c:1151)
[    9.937716][  T187]  __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160)
[    9.937718][  T187]  x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232)
[    9.937720][  T187]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[    9.937724][  T187]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[    9.937727][  T187]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.937729][  T187] RIP: 0033:0x7f0d8d2931b8
[    9.937731][  T187] Code: Unable to access opcode bytes at 0x7f0d8d29318e.

Code starting with the faulting instruction
===========================================
[    9.937733][  T187] RSP: 002b:00007ffda0170068 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[    9.937735][  T187] RAX: ffffffffffffffda RBX: 00007f0d8d3c3f88 RCX: 00007f0d8d2931b8
[    9.937737][  T187] RDX: 00007f0d8cfddfc8 RSI: fffffffffffffeb8 RDI: 0000000000000000
[    9.937738][  T187] RBP: 00007ffda01700c0 R08: 0000000000000000 R09: 0000000000008010
[    9.937739][  T187] R10: 00007ffda016fe80 R11: 0000000000000246 R12: 0000000000000001
[    9.937739][  T187] R13: 0000000000000000 R14: 00007f0d8d3c2680 R15: 00007f0d8d3c3fa0
| [   11.877403][  T256] softirqs last disabled at (12692): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   11.877406][  T256] Preemption disabled at:
| [   11.877406][  T256] vprintk_emit (kernel/printk/printk.c:2471)
| [   11.877416][  T256] Tainted: [W]=WARN
[   11.877416][  T256] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.877418][  T256] Call Trace:
[   11.877420][  T256]  <TASK>
[   11.877421][  T256]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   11.877427][  T256]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   11.877429][  T256]  __might_resched.cold (kernel/sched/core.c:9234)
[   11.877434][  T256]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   11.877438][  T256]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   11.877443][  T256]  __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))
[   11.877445][  T256]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.877451][  T256]  ? 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)
[   11.877453][  T256]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.877456][  T256]  put_chars (drivers/char/virtio_console.c:1176)
[   11.877459][  T256]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   11.877463][  T256]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   11.877466][  T256]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   11.877469][  T256]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   11.877471][  T256]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.877472][  T256]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.877476][  T256]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   11.877478][  T256]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   11.877481][  T256]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.877485][  T256]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.877489][  T256]  console_emit_next_record (kernel/printk/printk.c:3183)
[   11.877492][  T256]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   11.877494][  T256]  ? 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))
[   11.877497][  T256]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.877499][  T256]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.877503][  T256]  console_flush_one_record (kernel/printk/printk.c:3268)
[   11.877507][  T256]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   11.877509][  T256]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.877514][  T256]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   11.877517][  T256]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   11.877519][  T256]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.877521][  T256]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   11.877524][  T256]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   11.877526][  T256]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   11.877529][  T256]  vprintk_emit (kernel/printk/printk.c:2479)
[   11.877533][  T256]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   11.877535][  T256]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.877537][  T256]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   11.877541][  T256]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   11.877545][  T256]  _printk (kernel/printk/printk.c:2504)
[   11.877548][  T256]  ? snapshot_read.cold (user.c:?)
[   11.877552][  T256]  ? br_multicast_flood (??:?) bridge
[   11.877565][  T256]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   11.877566][  T256]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   11.877567][  T256]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   11.877572][  T256] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   11.877581][  T256] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   11.877589][  T256] new_nbp (net/bridge/br_if.c:449) bridge
[   11.877598][  T256] br_add_if (net/bridge/br_if.c:592) bridge
[   11.877605][  T256]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   11.877609][  T256]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   11.877612][  T256]  ? __kernel_text_address (kernel/extable.c:79)
[   11.877616][  T256]  do_set_master (net/core/rtnetlink.c:3071)
[   11.877621][  T256]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   11.877624][  T256]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   11.877627][  T256]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   11.877628][  T256]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   11.877630][  T256]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   11.877634][  T256]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   11.877636][  T256]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   11.877638][  T256]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   11.877641][  T256]  ? kasan_save_stack (mm/kasan/common.c:58)
[   11.877643][  T256]  ? kasan_save_stack (mm/kasan/common.c:57)
[   11.877645][  T256]  ? kasan_save_track (mm/kasan/common.c:78)
[   11.877647][  T256]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.877649][  T256]  ? netlink_seq_next (net/netlink/af_netlink.c:2685)
[   11.877654][  T256]  ? ___sys_sendmsg (net/socket.c:2757)
[   11.877658][  T256]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.877660][  T256]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   11.877663][  T256]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.877665][  T256]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.877666][  T256]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.877668][  T256]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.877670][  T256]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   11.877674][  T256]  ? __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)
[   11.877676][  T256]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   11.877678][  T256]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   11.877681][  T256]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   11.877682][  T256]  ? nla_get_range_signed (lib/nlattr.c:270)
[   11.877687][  T256]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   11.877692][  T256]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   11.877697][  T256]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.877699][  T256]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.877704][  T256]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.877706][  T256]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   11.877708][  T256]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.877710][  T256]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.877713][  T256]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.877715][  T256]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   11.877718][  T256]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.877719][  T256]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.877724][  T256]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.877725][  T256]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   11.877729][  T256]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   11.877730][  T256]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.877733][  T256]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   11.877739][  T256]  ? 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))
[   11.877741][  T256]  ? 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))
[   11.877745][  T256]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   11.877748][  T256]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   11.877751][  T256]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.877755][  T256]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   11.877758][  T256]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   11.877762][  T256]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   11.877767][  T256]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   11.877769][  T256]  ? copy_msghdr_from_user (net/socket.c:2650)
[   11.877771][  T256]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   11.877773][  T256]  ? move_addr_to_kernel (net/socket.c:258)
[   11.877780][  T256]  ___sys_sendmsg (net/socket.c:2767)
[   11.877783][  T256]  ? copy_msghdr_from_user (net/socket.c:2619)
[   11.877798][  T256]  __sys_sendmsg (net/socket.c:2799)
[   11.877801][  T256]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   11.877807][  T256]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.877810][  T256]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   11.877813][  T256]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   11.877816][  T256]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.877818][  T256] RIP: 0033:0x7fb339f7354e
[   11.877821][  T256] 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
[   11.877823][  T256] RSP: 002b:00007ffc8704fff0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   11.877826][  T256] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fb339f7354e
[   11.877828][  T256] RDX: 0000000000000000 RSI: 00007ffc870500a0 RDI: 0000000000000005
[   11.877828][  T256] RBP: 00007ffc87050000 R08: 0000000000000000 R09: 0000000000000000
[   11.877829][  T256] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a912f5b
[   11.877830][  T256] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffc87050760
| [   20.077793][  T323] softirqs last disabled at (14631): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   20.077795][  T323] Preemption disabled at:
| [   20.077796][  T323] vprintk_emit (kernel/printk/printk.c:2471)
| [   20.077805][  T323] Tainted: [W]=WARN
[   20.077806][  T323] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   20.077808][  T323] Call Trace:
[   20.077810][  T323]  <TASK>
[   20.077811][  T323]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   20.077817][  T323]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   20.077819][  T323]  __might_resched.cold (kernel/sched/core.c:9234)
[   20.077824][  T323]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   20.077828][  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)
[   20.077833][  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))
[   20.077835][  T323]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   20.077841][  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)
[   20.077843][  T323]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   20.077847][  T323]  put_chars (drivers/char/virtio_console.c:1176)
[   20.077849][  T323]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   20.077851][  T323]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   20.077856][  T323]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   20.077861][  T323]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   20.077867][  T323]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   20.077869][  T323]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.077872][  T323]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   20.077876][  T323]  console_emit_next_record (kernel/printk/printk.c:3183)
[   20.077880][  T323]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   20.077881][  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))
[   20.077885][  T323]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.077887][  T323]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   20.077891][  T323]  console_flush_one_record (kernel/printk/printk.c:3268)
[   20.077895][  T323]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   20.077897][  T323]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   20.077902][  T323]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   20.077905][  T323]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   20.077907][  T323]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.077909][  T323]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   20.077913][  T323]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   20.077915][  T323]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   20.077918][  T323]  vprintk_emit (kernel/printk/printk.c:2479)
[   20.077922][  T323]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   20.077924][  T323]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   20.077925][  T323]  ? netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   20.077928][  T323]  ? netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   20.077930][  T323]  ? ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   20.077933][  T323]  ? ___sys_sendmsg (net/socket.c:2767)
[   20.077934][  T323]  ? __sys_sendmsg (net/socket.c:2799)
[   20.077936][  T323]  ? do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   20.077941][  T323]  _printk (kernel/printk/printk.c:2504)
[   20.077945][  T323]  ? snapshot_read.cold (user.c:?)
[   20.077949][  T323]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   20.077953][  T323]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   20.077956][  T323]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   20.077958][  T323]  ? netdev_notice (net/core/dev.c:13194)
[   20.077962][  T323]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.077965][  T323]  ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1))
[   20.077968][  T323]  ? down_write_nested (kernel/locking/rwsem.c:1759)
[   20.077969][  T323]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   20.077971][  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)
[   20.077975][  T323]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[   20.077979][  T323]  dev_set_allmulti (net/core/dev_api.c:315)
[   20.077983][  T323] del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341) bridge
[   20.077996][  T323]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   20.078003][  T323] br_del_if (net/bridge/br_if.c:732) bridge
[   20.078010][  T323]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   20.078019][  T323]  do_set_master (net/core/rtnetlink.c:3055)
[   20.078023][  T323]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   20.078027][  T323]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   20.078030][  T323]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   20.078031][  T323]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   20.078034][  T323]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   20.078037][  T323]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   20.078040][  T323]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   20.078042][  T323]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   20.078044][  T323]  ? kasan_save_stack (mm/kasan/common.c:58)
[   20.078047][  T323]  ? kasan_save_stack (mm/kasan/common.c:57)
[   20.078049][  T323]  ? kasan_save_track (mm/kasan/common.c:78)
[   20.078052][  T323]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   20.078054][  T323]  ? netlink_seq_next (net/netlink/af_netlink.c:2685)
[   20.078056][  T323]  ? ___sys_sendmsg (net/socket.c:2757)
[   20.078059][  T323]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   20.078061][  T323]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   20.078063][  T323]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.078066][  T323]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   20.078067][  T323]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.078069][  T323]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.078071][  T323]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   20.078074][  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)
[   20.078077][  T323]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   20.078079][  T323]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   20.078082][  T323]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   20.078084][  T323]  ? nla_get_range_signed (lib/nlattr.c:270)
[   20.078089][  T323]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   20.078094][  T323]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   20.078099][  T323]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   20.078101][  T323]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   20.078105][  T323]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   20.078107][  T323]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   20.078109][  T323]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   20.078111][  T323]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   20.078115][  T323]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   20.078117][  T323]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   20.078120][  T323]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   20.078121][  T323]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   20.078125][  T323]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   20.078127][  T323]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   20.078131][  T323]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   20.078132][  T323]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   20.078135][  T323]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   20.078141][  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))
[   20.078143][  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))
[   20.078147][  T323]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   20.078150][  T323]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   20.078153][  T323]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   20.078157][  T323]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   20.078161][  T323]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   20.078164][  T323]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   20.078170][  T323]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   20.078172][  T323]  ? copy_msghdr_from_user (net/socket.c:2650)
[   20.078174][  T323]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   20.078176][  T323]  ? move_addr_to_kernel (net/socket.c:258)
[   20.078183][  T323]  ___sys_sendmsg (net/socket.c:2767)
[   20.078186][  T323]  ? copy_msghdr_from_user (net/socket.c:2619)
[   20.078201][  T323]  __sys_sendmsg (net/socket.c:2799)
[   20.078204][  T323]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   20.078210][  T323]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.078213][  T323]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   20.078215][  T323]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   20.078218][  T323]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   20.078220][  T323] RIP: 0033:0x7f063bbac54e
[   20.078224][  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
[   20.078225][  T323] RSP: 002b:00007ffd3660f7d0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   20.078228][  T323] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f063bbac54e
[   20.078230][  T323] RDX: 0000000000000000 RSI: 00007ffd3660f880 RDI: 0000000000000005
[   20.078231][  T323] RBP: 00007ffd3660f7e0 R08: 0000000000000000 R09: 0000000000000000
[   20.078231][  T323] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a912f63
[   20.078232][  T323] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffd3660ff40
| [   22.220367][  T326] softirqs last disabled at (12888): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   22.220369][  T326] Preemption disabled at:
| [   22.220370][  T326] vprintk_emit (kernel/printk/printk.c:2471)
| [   22.220379][  T326] Tainted: [W]=WARN
[   22.220379][  T326] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   22.220381][  T326] Call Trace:
[   22.220383][  T326]  <TASK>
[   22.220385][  T326]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   22.220390][  T326]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   22.220393][  T326]  __might_resched.cold (kernel/sched/core.c:9234)
[   22.220397][  T326]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   22.220401][  T326]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   22.220406][  T326]  __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))
[   22.220408][  T326]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   22.220414][  T326]  ? 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)
[   22.220416][  T326]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   22.220419][  T326]  put_chars (drivers/char/virtio_console.c:1176)
[   22.220421][  T326]  ? prb_final_commit (kernel/printk/printk_ringbuffer.c:1842)
[   22.220423][  T326]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   22.220426][  T326]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   22.220430][  T326]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   22.220433][  T326]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   22.220436][  T326]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   22.220439][  T326]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   22.220441][  T326]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.220442][  T326]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.220446][  T326]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   22.220448][  T326]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   22.220451][  T326]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.220454][  T326]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   22.220458][  T326]  console_emit_next_record (kernel/printk/printk.c:3183)
[   22.220461][  T326]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   22.220463][  T326]  ? 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))
[   22.220466][  T326]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.220469][  T326]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   22.220473][  T326]  console_flush_one_record (kernel/printk/printk.c:3268)
[   22.220477][  T326]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   22.220478][  T326]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.220484][  T326]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   22.220486][  T326]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   22.220488][  T326]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.220491][  T326]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   22.220494][  T326]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   22.220496][  T326]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   22.220499][  T326]  vprintk_emit (kernel/printk/printk.c:2479)
[   22.220503][  T326]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   22.220506][  T326]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   22.220508][  T326]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   22.220512][  T326]  _printk (kernel/printk/printk.c:2504)
[   22.220515][  T326]  ? snapshot_read.cold (user.c:?)
[   22.220519][  T326]  ? br_multicast_flood (??:?) bridge
[   22.220532][  T326]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   22.220533][  T326]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   22.220534][  T326]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   22.220538][  T326] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   22.220548][  T326] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   22.220557][  T326] new_nbp (net/bridge/br_if.c:449) bridge
[   22.220566][  T326] br_add_if (net/bridge/br_if.c:592) bridge
[   22.220573][  T326]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   22.220577][  T326]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   22.220580][  T326]  ? __kernel_text_address (kernel/extable.c:79)
[   22.220584][  T326]  do_set_master (net/core/rtnetlink.c:3071)
[   22.220588][  T326]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   22.220591][  T326]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   22.220594][  T326]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   22.220595][  T326]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   22.220597][  T326]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   22.220601][  T326]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   22.220603][  T326]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   22.220605][  T326]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   22.220608][  T326]  ? kasan_save_stack (mm/kasan/common.c:58)
[   22.220611][  T326]  ? kasan_save_stack (mm/kasan/common.c:57)
[   22.220612][  T326]  ? kasan_save_track (mm/kasan/common.c:78)
[   22.220615][  T326]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.220617][  T326]  ? netlink_seq_next (net/netlink/af_netlink.c:2685)
[   22.220620][  T326]  ? ___sys_sendmsg (net/socket.c:2757)
[   22.220624][  T326]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   22.220626][  T326]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   22.220628][  T326]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.220631][  T326]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   22.220632][  T326]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.220634][  T326]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.220636][  T326]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   22.220640][  T326]  ? __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)
[   22.220643][  T326]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   22.220645][  T326]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   22.220648][  T326]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   22.220652][  T326]  ? nla_get_range_signed (lib/nlattr.c:270)
[   22.220657][  T326]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   22.220662][  T326]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   22.220667][  T326]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   22.220669][  T326]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.220674][  T326]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   22.220675][  T326]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   22.220677][  T326]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   22.220679][  T326]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   22.220683][  T326]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   22.220685][  T326]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   22.220688][  T326]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   22.220689][  T326]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.220693][  T326]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   22.220695][  T326]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   22.220698][  T326]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   22.220700][  T326]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   22.220704][  T326]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   22.220712][  T326]  ? 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))
[   22.220713][  T326]  ? 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))
[   22.220717][  T326]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   22.220721][  T326]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   22.220723][  T326]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.220727][  T326]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   22.220731][  T326]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   22.220735][  T326]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   22.220740][  T326]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   22.220742][  T326]  ? copy_msghdr_from_user (net/socket.c:2650)
[   22.220744][  T326]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   22.220746][  T326]  ? move_addr_to_kernel (net/socket.c:258)
[   22.220753][  T326]  ___sys_sendmsg (net/socket.c:2767)
[   22.220756][  T326]  ? copy_msghdr_from_user (net/socket.c:2619)
[   22.220771][  T326]  __sys_sendmsg (net/socket.c:2799)
[   22.220773][  T326]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   22.220779][  T326]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.220783][  T326]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   22.220785][  T326]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   22.220788][  T326]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   22.220791][  T326] RIP: 0033:0x7fbb511a354e
[   22.220794][  T326] 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
[   22.220795][  T326] RSP: 002b:00007fff0d46c9d0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   22.220798][  T326] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fbb511a354e
[   22.220800][  T326] RDX: 0000000000000000 RSI: 00007fff0d46ca80 RDI: 0000000000000005
[   22.220800][  T326] RBP: 00007fff0d46c9e0 R08: 0000000000000000 R09: 0000000000000000
[   22.220801][  T326] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a912f65
[   22.220802][  T326] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fff0d46d140
| [   24.922061][  T374] softirqs last disabled at (23922): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:109) bridge
| [   24.922071][  T374] Preemption disabled at:
| [   24.922072][  T374] 0x0
| [   24.922081][  T374] Tainted: [W]=WARN
[   24.922082][  T374] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.922084][  T374] Call Trace:
[   24.922086][  T374]  <TASK>
[   24.922087][  T374]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   24.922094][  T374]  __might_resched.cold (kernel/sched/core.c:9234)
[   24.922098][  T374]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   24.922103][  T374]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   24.922108][  T374]  __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))
[   24.922111][  T374]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   24.922116][  T374]  ? 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)
[   24.922119][  T374]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   24.922122][  T374]  put_chars (drivers/char/virtio_console.c:1176)
[   24.922125][  T374]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   24.922128][  T374]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   24.922132][  T374]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   24.922135][  T374]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   24.922139][  T374]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   24.922141][  T374]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   24.922143][  T374]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.922145][  T374]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.922149][  T374]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   24.922150][  T374]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   24.922154][  T374]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   24.922158][  T374]  console_emit_next_record (kernel/printk/printk.c:3183)
[   24.922164][  T374]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   24.922166][  T374]  ? 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))
[   24.922170][  T374]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.922172][  T374]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   24.922176][  T374]  console_flush_one_record (kernel/printk/printk.c:3268)
[   24.922180][  T374]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   24.922182][  T374]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.922187][  T374]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   24.922190][  T374]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   24.922192][  T374]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.922194][  T374]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   24.922198][  T374]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   24.922200][  T374]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   24.922203][  T374]  vprintk_emit (kernel/printk/printk.c:2479)
[   24.922207][  T374]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   24.922209][  T374]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   24.922212][  T374]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   24.922214][  T374]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   24.922218][  T374]  _printk (kernel/printk/printk.c:2504)
[   24.922221][  T374]  ? snapshot_read.cold (user.c:?)
[   24.922229][  T374] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   24.922241][  T374] br_stp_disable_port (net/bridge/br_stp_if.c:106) bridge
[   24.922251][  T374] br_device_event (net/bridge/br.c:111) bridge
[   24.922259][  T374]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   24.922263][  T374]  ? _sub_I_65535_1+0x4d0/0x4d0 stp
[   24.922269][  T374]  notifier_call_chain (kernel/notifier.c:85)
[   24.922275][  T374]  __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855)
[   24.922280][  T374]  ? netif_change_name (net/core/dev.c:1517)
[   24.922283][  T374]  ? netif_set_allmulti (./include/net/netdev_lock.h:30 (discriminator 1))
[   24.922286][  T374]  ? __kernel_text_address (kernel/extable.c:79)
[   24.922289][  T374]  ? write_profile (profile.c:?)
[   24.922291][  T374]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   24.922296][  T374]  netif_change_flags (net/core/dev.c:9882)
[   24.922300][  T374]  do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1))
[   24.922303][  T374]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   24.922305][  T374]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   24.922307][  T374]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   24.922309][  T374]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   24.922312][  T374]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   24.922315][  T374]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   24.922316][  T374]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   24.922319][  T374]  ? kasan_save_stack (mm/kasan/common.c:58)
[   24.922322][  T374]  ? kasan_save_stack (mm/kasan/common.c:57)
[   24.922324][  T374]  ? kasan_save_track (mm/kasan/common.c:78)
[   24.922327][  T374]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.922329][  T374]  ? netlink_seq_next (net/netlink/af_netlink.c:2685)
[   24.922332][  T374]  ? ___sys_sendmsg (net/socket.c:2757)
[   24.922337][  T374]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   24.922338][  T374]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   24.922341][  T374]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.922343][  T374]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   24.922345][  T374]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.922347][  T374]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.922349][  T374]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   24.922353][  T374]  ? __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)
[   24.922355][  T374]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   24.922357][  T374]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   24.922360][  T374]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   24.922362][  T374]  ? nla_get_range_signed (lib/nlattr.c:270)
[   24.922367][  T374]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   24.922372][  T374]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   24.922377][  T374]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   24.922379][  T374]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.922383][  T374]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   24.922385][  T374]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   24.922387][  T374]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   24.922389][  T374]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   24.922393][  T374]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   24.922395][  T374]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   24.922398][  T374]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   24.922399][  T374]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.922404][  T374]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   24.922406][  T374]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   24.922409][  T374]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   24.922411][  T374]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   24.922414][  T374]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   24.922420][  T374]  ? 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))
[   24.922421][  T374]  ? 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))
[   24.922426][  T374]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   24.922429][  T374]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   24.922432][  T374]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.922436][  T374]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   24.922440][  T374]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   24.922444][  T374]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   24.922450][  T374]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   24.922452][  T374]  ? copy_msghdr_from_user (net/socket.c:2650)
[   24.922454][  T374]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   24.922456][  T374]  ? move_addr_to_kernel (net/socket.c:258)
[   24.922463][  T374]  ___sys_sendmsg (net/socket.c:2767)
[   24.922466][  T374]  ? copy_msghdr_from_user (net/socket.c:2619)
[   24.922482][  T374]  __sys_sendmsg (net/socket.c:2799)
[   24.922485][  T374]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   24.922491][  T374]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.922495][  T374]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   24.922497][  T374]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   24.922500][  T374]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   24.922503][  T374] RIP: 0033:0x7f2d20acc54e
[   24.922505][  T374] 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
[   24.922507][  T374] RSP: 002b:00007ffdc19017b0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   24.922510][  T374] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f2d20acc54e
[   24.922511][  T374] RDX: 0000000000000000 RSI: 00007ffdc1901860 RDI: 0000000000000005
[   24.922512][  T374] RBP: 00007ffdc19017c0 R08: 0000000000000000 R09: 0000000000000000
[   24.922513][  T374] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a912f68


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