======================================
| [    9.440221][  T196] softirqs last disabled at (25326): netlink_release (./include/net/sock.h:2138 net/netlink/af_netlink.c:727)
| [    9.440223][  T196] Preemption disabled at:
| [    9.440224][  T196] 0x0
| [    9.440235][  T196] Tainted: [W]=WARN
[    9.440235][  T196] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.440237][  T196] Call Trace:
[    9.440239][  T196]  <TASK>
[    9.440240][  T196]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[    9.440247][  T196]  __might_resched.cold (kernel/sched/core.c:9234)
[    9.440251][  T196]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[    9.440256][  T196]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[    9.440261][  T196]  __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))
[    9.440263][  T196]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[    9.440269][  T196]  ? 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)
[    9.440271][  T196]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[    9.440275][  T196]  put_chars (drivers/char/virtio_console.c:1176)
[    9.440277][  T196]  ? __send_to_port (drivers/char/virtio_console.c:654)
[    9.440279][  T196]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[    9.440283][  T196]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[    9.440289][  T196]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[    9.440295][  T196]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[    9.440297][  T196]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.440299][  T196]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[    9.440303][  T196]  console_emit_next_record (kernel/printk/printk.c:3183)
[    9.440307][  T196]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[    9.440309][  T196]  ? 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))
[    9.440312][  T196]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.440314][  T196]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[    9.440318][  T196]  console_flush_one_record (kernel/printk/printk.c:3268)
[    9.440322][  T196]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[    9.440324][  T196]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[    9.440338][  T196]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[    9.440341][  T196]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[    9.440343][  T196]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.440345][  T196]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[    9.440349][  T196]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[    9.440350][  T196]  ? vprintk_emit (kernel/printk/printk.c:2478)
[    9.440354][  T196]  vprintk_emit (kernel/printk/printk.c:2479)
[    9.440357][  T196]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[    9.440361][  T196]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[    9.440364][  T196]  _printk (kernel/printk/printk.c:2504)
[    9.440368][  T196]  ? snapshot_read.cold (user.c:?)
[    9.440371][  T196]  ? 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)
[    9.440374][  T196]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[    9.440377][  T196]  ? 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)
[    9.440380][  T196]  do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4))
[    9.440384][  T196]  ? exit_notify (kernel/exit.c:780)
[    9.440386][  T196]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[    9.440388][  T196]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.440393][  T196]  do_group_exit (kernel/exit.c:1151)
[    9.440395][  T196]  __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160)
[    9.440397][  T196]  x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232)
[    9.440399][  T196]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[    9.440402][  T196]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[    9.440405][  T196]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.440408][  T196] RIP: 0033:0x7f194310f1b8
[    9.440410][  T196] Code: Unable to access opcode bytes at 0x7f194310f18e.

Code starting with the faulting instruction
===========================================
[    9.440411][  T196] RSP: 002b:00007fff62ace428 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[    9.440414][  T196] RAX: ffffffffffffffda RBX: 00007f194323ff88 RCX: 00007f194310f1b8
[    9.440415][  T196] RDX: 00007f1942e59fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000
[    9.440416][  T196] RBP: 00007fff62ace480 R08: 0000000000000000 R09: 0000000000008010
[    9.440417][  T196] R10: 00007fff62ace240 R11: 0000000000000246 R12: 0000000000000001
[    9.440418][  T196] R13: 0000000000000000 R14: 00007f194323e680 R15: 00007f194323ffa0
| [   10.851941][  T256] softirqs last disabled at (20320): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   10.851944][  T256] Preemption disabled at:
| [   10.851944][  T256] vprintk_emit (kernel/printk/printk.c:2471)
| [   10.851955][  T256] Tainted: [W]=WARN
[   10.851955][  T256] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.851957][  T256] Call Trace:
[   10.851959][  T256]  <TASK>
[   10.851960][  T256]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   10.851966][  T256]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   10.851968][  T256]  __might_resched.cold (kernel/sched/core.c:9234)
[   10.851973][  T256]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   10.851977][  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)
[   10.851984][  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))
[   10.851988][  T256]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.851996][  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)
[   10.852000][  T256]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.852003][  T256]  put_chars (drivers/char/virtio_console.c:1176)
[   10.852006][  T256]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   10.852011][  T256]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   10.852014][  T256]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   10.852017][  T256]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   10.852019][  T256]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.852021][  T256]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.852025][  T256]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   10.852027][  T256]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   10.852030][  T256]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.852034][  T256]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.852038][  T256]  console_emit_next_record (kernel/printk/printk.c:3183)
[   10.852042][  T256]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   10.852044][  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))
[   10.852047][  T256]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.852050][  T256]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.852054][  T256]  console_flush_one_record (kernel/printk/printk.c:3268)
[   10.852058][  T256]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   10.852060][  T256]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.852065][  T256]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   10.852068][  T256]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   10.852069][  T256]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.852072][  T256]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   10.852076][  T256]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   10.852077][  T256]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   10.852081][  T256]  vprintk_emit (kernel/printk/printk.c:2479)
[   10.852084][  T256]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   10.852087][  T256]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   10.852089][  T256]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   10.852093][  T256]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   10.852097][  T256]  _printk (kernel/printk/printk.c:2504)
[   10.852101][  T256]  ? snapshot_read.cold (user.c:?)
[   10.852105][  T256]  ? br_multicast_flood (??:?) bridge
[   10.852117][  T256]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   10.852118][  T256]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   10.852120][  T256]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   10.852124][  T256] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   10.852135][  T256] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   10.852143][  T256] new_nbp (net/bridge/br_if.c:449) bridge
[   10.852153][  T256] br_add_if (net/bridge/br_if.c:592) bridge
[   10.852160][  T256]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   10.852165][  T256]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   10.852168][  T256]  ? __kernel_text_address (kernel/extable.c:79)
[   10.852171][  T256]  do_set_master (net/core/rtnetlink.c:3071)
[   10.852176][  T256]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   10.852180][  T256]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   10.852183][  T256]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   10.852184][  T256]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   10.852187][  T256]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   10.852190][  T256]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   10.852193][  T256]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   10.852195][  T256]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   10.852198][  T256]  ? kasan_save_stack (mm/kasan/common.c:58)
[   10.852201][  T256]  ? kasan_save_stack (mm/kasan/common.c:57)
[   10.852202][  T256]  ? kasan_save_track (mm/kasan/common.c:78)
[   10.852205][  T256]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.852207][  T256]  ? netlink_seq_next (net/netlink/af_netlink.c:2684)
[   10.852210][  T256]  ? ___sys_sendmsg (net/socket.c:2757)
[   10.852215][  T256]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   10.852217][  T256]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   10.852220][  T256]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.852222][  T256]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.852224][  T256]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.852225][  T256]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.852228][  T256]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   10.852232][  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)
[   10.852234][  T256]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   10.852236][  T256]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   10.852240][  T256]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   10.852241][  T256]  ? nla_get_range_signed (lib/nlattr.c:270)
[   10.852246][  T256]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   10.852252][  T256]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   10.852257][  T256]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   10.852259][  T256]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.852263][  T256]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   10.852265][  T256]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   10.852267][  T256]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   10.852269][  T256]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   10.852273][  T256]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   10.852275][  T256]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   10.852278][  T256]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   10.852280][  T256]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.852284][  T256]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   10.852286][  T256]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   10.852290][  T256]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   10.852291][  T256]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   10.852294][  T256]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   10.852301][  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))
[   10.852302][  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))
[   10.852306][  T256]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   10.852310][  T256]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   10.852313][  T256]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.852317][  T256]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   10.852321][  T256]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   10.852325][  T256]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   10.852336][  T256]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   10.852339][  T256]  ? copy_msghdr_from_user (net/socket.c:2650)
[   10.852341][  T256]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   10.852343][  T256]  ? move_addr_to_kernel (net/socket.c:258)
[   10.852350][  T256]  ___sys_sendmsg (net/socket.c:2767)
[   10.852353][  T256]  ? copy_msghdr_from_user (net/socket.c:2619)
[   10.852369][  T256]  __sys_sendmsg (net/socket.c:2799)
[   10.852372][  T256]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   10.852379][  T256]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.852382][  T256]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   10.852385][  T256]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   10.852388][  T256]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.852391][  T256] RIP: 0033:0x7f6ef3a6d54e
[   10.852394][  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
[   10.852396][  T256] RSP: 002b:00007ffde3ffd2a0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   10.852399][  T256] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f6ef3a6d54e
[   10.852400][  T256] RDX: 0000000000000000 RSI: 00007ffde3ffd350 RDI: 0000000000000005
[   10.852401][  T256] RBP: 00007ffde3ffd2b0 R08: 0000000000000000 R09: 0000000000000000
[   10.852402][  T256] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91b7d7
[   10.852403][  T256] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffde3ffda10
| [   18.814049][  T323] softirqs last disabled at (11758): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   18.814052][  T323] Preemption disabled at:
| [   18.814052][  T323] vprintk_emit (kernel/printk/printk.c:2471)
| [   18.814062][  T323] Tainted: [W]=WARN
[   18.814063][  T323] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   18.814065][  T323] Call Trace:
[   18.814066][  T323]  <TASK>
[   18.814068][  T323]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   18.814074][  T323]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   18.814076][  T323]  __might_resched.cold (kernel/sched/core.c:9234)
[   18.814081][  T323]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   18.814085][  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)
[   18.814090][  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))
[   18.814092][  T323]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   18.814097][  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)
[   18.814100][  T323]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   18.814104][  T323]  put_chars (drivers/char/virtio_console.c:1176)
[   18.814107][  T323]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   18.814108][  T323]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   18.814113][  T323]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   18.814118][  T323]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   18.814124][  T323]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   18.814126][  T323]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   18.814128][  T323]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   18.814132][  T323]  console_emit_next_record (kernel/printk/printk.c:3183)
[   18.814136][  T323]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   18.814138][  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))
[   18.814141][  T323]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   18.814143][  T323]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   18.814147][  T323]  console_flush_one_record (kernel/printk/printk.c:3268)
[   18.814151][  T323]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   18.814152][  T323]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   18.814157][  T323]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   18.814160][  T323]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   18.814162][  T323]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   18.814164][  T323]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   18.814168][  T323]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   18.814169][  T323]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   18.814173][  T323]  vprintk_emit (kernel/printk/printk.c:2479)
[   18.814176][  T323]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   18.814178][  T323]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   18.814180][  T323]  ? netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   18.814182][  T323]  ? netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   18.814184][  T323]  ? ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   18.814186][  T323]  ? ___sys_sendmsg (net/socket.c:2767)
[   18.814188][  T323]  ? __sys_sendmsg (net/socket.c:2799)
[   18.814190][  T323]  ? do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   18.814195][  T323]  _printk (kernel/printk/printk.c:2504)
[   18.814199][  T323]  ? snapshot_read.cold (user.c:?)
[   18.814203][  T323]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   18.814206][  T323]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   18.814209][  T323]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   18.814212][  T323]  ? netdev_notice (net/core/dev.c:13194)
[   18.814215][  T323]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   18.814218][  T323]  ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1))
[   18.814221][  T323]  ? down_write_nested (kernel/locking/rwsem.c:1759)
[   18.814223][  T323]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   18.814225][  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)
[   18.814228][  T323]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[   18.814232][  T323]  dev_set_allmulti (net/core/dev_api.c:315)
[   18.814236][  T323] del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341) bridge
[   18.814250][  T323]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   18.814256][  T323] br_del_if (net/bridge/br_if.c:732) bridge
[   18.814264][  T323]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   18.814267][  T323]  do_set_master (net/core/rtnetlink.c:3055)
[   18.814271][  T323]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   18.814275][  T323]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   18.814278][  T323]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   18.814279][  T323]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   18.814282][  T323]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   18.814286][  T323]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   18.814288][  T323]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   18.814290][  T323]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   18.814292][  T323]  ? kasan_save_stack (mm/kasan/common.c:58)
[   18.814296][  T323]  ? kasan_save_stack (mm/kasan/common.c:57)
[   18.814297][  T323]  ? kasan_save_track (mm/kasan/common.c:78)
[   18.814300][  T323]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   18.814302][  T323]  ? netlink_seq_next (net/netlink/af_netlink.c:2684)
[   18.814304][  T323]  ? ___sys_sendmsg (net/socket.c:2757)
[   18.814307][  T323]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   18.814309][  T323]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   18.814311][  T323]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   18.814314][  T323]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   18.814315][  T323]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   18.814317][  T323]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   18.814319][  T323]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   18.814322][  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)
[   18.814324][  T323]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   18.814327][  T323]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   18.814330][  T323]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   18.814332][  T323]  ? nla_get_range_signed (lib/nlattr.c:270)
[   18.814336][  T323]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   18.814341][  T323]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   18.814347][  T323]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   18.814349][  T323]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   18.814353][  T323]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   18.814355][  T323]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   18.814357][  T323]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   18.814364][  T323]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   18.814367][  T323]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   18.814370][  T323]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   18.814372][  T323]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   18.814374][  T323]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   18.814378][  T323]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   18.814380][  T323]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   18.814383][  T323]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   18.814385][  T323]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   18.814388][  T323]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   18.814394][  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))
[   18.814395][  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))
[   18.814400][  T323]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   18.814403][  T323]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   18.814406][  T323]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   18.814410][  T323]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   18.814413][  T323]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   18.814417][  T323]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   18.814423][  T323]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   18.814425][  T323]  ? copy_msghdr_from_user (net/socket.c:2650)
[   18.814427][  T323]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   18.814429][  T323]  ? move_addr_to_kernel (net/socket.c:258)
[   18.814436][  T323]  ___sys_sendmsg (net/socket.c:2767)
[   18.814439][  T323]  ? copy_msghdr_from_user (net/socket.c:2619)
[   18.814454][  T323]  __sys_sendmsg (net/socket.c:2799)
[   18.814457][  T323]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   18.814463][  T323]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   18.814466][  T323]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   18.814468][  T323]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   18.814471][  T323]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   18.814473][  T323] RIP: 0033:0x7fe88f61e54e
[   18.814477][  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
[   18.814478][  T323] RSP: 002b:00007ffc5319bd70 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   18.814481][  T323] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fe88f61e54e
[   18.814483][  T323] RDX: 0000000000000000 RSI: 00007ffc5319be20 RDI: 0000000000000005
[   18.814483][  T323] RBP: 00007ffc5319bd80 R08: 0000000000000000 R09: 0000000000000000
[   18.814484][  T323] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91b7df
[   18.814485][  T323] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffc5319c4e0
| [   20.955623][  T326] softirqs last disabled at (20666): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   20.955625][  T326] Preemption disabled at:
| [   20.955626][  T326] vprintk_emit (kernel/printk/printk.c:2471)
| [   20.955635][  T326] Tainted: [W]=WARN
[   20.955636][  T326] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   20.955638][  T326] Call Trace:
[   20.955639][  T326]  <TASK>
[   20.955641][  T326]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   20.955647][  T326]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   20.955649][  T326]  __might_resched.cold (kernel/sched/core.c:9234)
[   20.955654][  T326]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   20.955658][  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)
[   20.955664][  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))
[   20.955666][  T326]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   20.955671][  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)
[   20.955674][  T326]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   20.955677][  T326]  put_chars (drivers/char/virtio_console.c:1176)
[   20.955679][  T326]  ? prb_final_commit (kernel/printk/printk_ringbuffer.c:1842)
[   20.955681][  T326]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   20.955684][  T326]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   20.955689][  T326]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   20.955691][  T326]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   20.955694][  T326]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   20.955697][  T326]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   20.955699][  T326]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   20.955701][  T326]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   20.955705][  T326]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   20.955707][  T326]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   20.955710][  T326]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.955712][  T326]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   20.955716][  T326]  console_emit_next_record (kernel/printk/printk.c:3183)
[   20.955720][  T326]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   20.955722][  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))
[   20.955725][  T326]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.955727][  T326]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   20.955731][  T326]  console_flush_one_record (kernel/printk/printk.c:3268)
[   20.955735][  T326]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   20.955737][  T326]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   20.955742][  T326]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   20.955745][  T326]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   20.955747][  T326]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.955749][  T326]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   20.955753][  T326]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   20.955754][  T326]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   20.955758][  T326]  vprintk_emit (kernel/printk/printk.c:2479)
[   20.955762][  T326]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   20.955764][  T326]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   20.955767][  T326]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   20.955770][  T326]  _printk (kernel/printk/printk.c:2504)
[   20.955774][  T326]  ? snapshot_read.cold (user.c:?)
[   20.955778][  T326]  ? br_multicast_flood (??:?) bridge
[   20.955791][  T326]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   20.955792][  T326]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   20.955793][  T326]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   20.955798][  T326] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   20.955808][  T326] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   20.955816][  T326] new_nbp (net/bridge/br_if.c:449) bridge
[   20.955825][  T326] br_add_if (net/bridge/br_if.c:592) bridge
[   20.955832][  T326]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   20.955836][  T326]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   20.955839][  T326]  ? __kernel_text_address (kernel/extable.c:79)
[   20.955843][  T326]  do_set_master (net/core/rtnetlink.c:3071)
[   20.955847][  T326]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   20.955850][  T326]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   20.955853][  T326]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   20.955855][  T326]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   20.955857][  T326]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   20.955860][  T326]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   20.955863][  T326]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   20.955864][  T326]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   20.955867][  T326]  ? kasan_save_stack (mm/kasan/common.c:58)
[   20.955870][  T326]  ? kasan_save_stack (mm/kasan/common.c:57)
[   20.955872][  T326]  ? kasan_save_track (mm/kasan/common.c:78)
[   20.955874][  T326]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   20.955876][  T326]  ? netlink_seq_next (net/netlink/af_netlink.c:2684)
[   20.955879][  T326]  ? ___sys_sendmsg (net/socket.c:2757)
[   20.955884][  T326]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   20.955886][  T326]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   20.955888][  T326]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.955891][  T326]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   20.955892][  T326]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.955894][  T326]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.955896][  T326]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   20.955900][  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)
[   20.955903][  T326]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   20.955906][  T326]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   20.955909][  T326]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   20.955910][  T326]  ? nla_get_range_signed (lib/nlattr.c:270)
[   20.955915][  T326]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   20.955920][  T326]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   20.955926][  T326]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   20.955927][  T326]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   20.955932][  T326]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   20.955934][  T326]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   20.955936][  T326]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   20.955937][  T326]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   20.955941][  T326]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   20.955943][  T326]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   20.955946][  T326]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   20.955947][  T326]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   20.955952][  T326]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   20.955953][  T326]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   20.955957][  T326]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   20.955959][  T326]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   20.955961][  T326]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   20.955967][  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))
[   20.955969][  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))
[   20.955973][  T326]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   20.955976][  T326]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   20.955979][  T326]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   20.955983][  T326]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   20.955987][  T326]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   20.955991][  T326]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   20.955996][  T326]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   20.955998][  T326]  ? copy_msghdr_from_user (net/socket.c:2650)
[   20.956000][  T326]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   20.956002][  T326]  ? move_addr_to_kernel (net/socket.c:258)
[   20.956009][  T326]  ___sys_sendmsg (net/socket.c:2767)
[   20.956012][  T326]  ? copy_msghdr_from_user (net/socket.c:2619)
[   20.956027][  T326]  __sys_sendmsg (net/socket.c:2799)
[   20.956030][  T326]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   20.956036][  T326]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.956040][  T326]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   20.956042][  T326]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   20.956045][  T326]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   20.956048][  T326] RIP: 0033:0x7f6402cf054e
[   20.956051][  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
[   20.956053][  T326] RSP: 002b:00007ffe3ee80660 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   20.956055][  T326] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f6402cf054e
[   20.956057][  T326] RDX: 0000000000000000 RSI: 00007ffe3ee80710 RDI: 0000000000000005
[   20.956058][  T326] RBP: 00007ffe3ee80670 R08: 0000000000000000 R09: 0000000000000000
[   20.956059][  T326] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91b7e1
[   20.956060][  T326] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffe3ee80dd0
| [   23.511401][  T373] softirqs last disabled at (15068): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:109) bridge
| [   23.511409][  T373] Preemption disabled at:
| [   23.511410][  T373] 0x0
| [   23.511420][  T373] Tainted: [W]=WARN
[   23.511421][  T373] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   23.511423][  T373] Call Trace:
[   23.511425][  T373]  <TASK>
[   23.511426][  T373]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   23.511433][  T373]  __might_resched.cold (kernel/sched/core.c:9234)
[   23.511438][  T373]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   23.511442][  T373]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   23.511448][  T373]  __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))
[   23.511450][  T373]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   23.511456][  T373]  ? 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)
[   23.511458][  T373]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   23.511462][  T373]  put_chars (drivers/char/virtio_console.c:1176)
[   23.511464][  T373]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   23.511467][  T373]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   23.511472][  T373]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   23.511474][  T373]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   23.511478][  T373]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   23.511481][  T373]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   23.511482][  T373]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   23.511484][  T373]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   23.511488][  T373]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   23.511489][  T373]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   23.511494][  T373]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   23.511498][  T373]  console_emit_next_record (kernel/printk/printk.c:3183)
[   23.511502][  T373]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   23.511504][  T373]  ? 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))
[   23.511507][  T373]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   23.511509][  T373]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   23.511513][  T373]  console_flush_one_record (kernel/printk/printk.c:3268)
[   23.511517][  T373]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   23.511519][  T373]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   23.511524][  T373]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   23.511527][  T373]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   23.511529][  T373]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   23.511533][  T373]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   23.511537][  T373]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   23.511539][  T373]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   23.511542][  T373]  vprintk_emit (kernel/printk/printk.c:2479)
[   23.511546][  T373]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   23.511548][  T373]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   23.511550][  T373]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   23.511553][  T373]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   23.511556][  T373]  _printk (kernel/printk/printk.c:2504)
[   23.511560][  T373]  ? snapshot_read.cold (user.c:?)
[   23.511568][  T373] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   23.511579][  T373] br_stp_disable_port (net/bridge/br_stp_if.c:106) bridge
[   23.511588][  T373] br_device_event (net/bridge/br.c:111) bridge
[   23.511596][  T373]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   23.511600][  T373]  ? _sub_I_65535_1+0x4d0/0x4d0 stp
[   23.511605][  T373]  notifier_call_chain (kernel/notifier.c:85)
[   23.511611][  T373]  __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855)
[   23.511616][  T373]  ? netif_change_name (net/core/dev.c:1517)
[   23.511620][  T373]  ? netif_set_allmulti (./include/net/netdev_lock.h:30 (discriminator 1))
[   23.511623][  T373]  ? __kernel_text_address (kernel/extable.c:79)
[   23.511625][  T373]  ? write_profile (profile.c:?)
[   23.511628][  T373]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   23.511632][  T373]  netif_change_flags (net/core/dev.c:9882)
[   23.511636][  T373]  do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1))
[   23.511640][  T373]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   23.511642][  T373]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   23.511643][  T373]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   23.511645][  T373]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   23.511648][  T373]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   23.511651][  T373]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   23.511653][  T373]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   23.511655][  T373]  ? kasan_save_stack (mm/kasan/common.c:58)
[   23.511659][  T373]  ? kasan_save_stack (mm/kasan/common.c:57)
[   23.511660][  T373]  ? kasan_save_track (mm/kasan/common.c:78)
[   23.511663][  T373]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   23.511665][  T373]  ? netlink_seq_next (net/netlink/af_netlink.c:2684)
[   23.511668][  T373]  ? ___sys_sendmsg (net/socket.c:2757)
[   23.511673][  T373]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   23.511675][  T373]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   23.511678][  T373]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   23.511680][  T373]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   23.511682][  T373]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   23.511683][  T373]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   23.511686][  T373]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   23.511690][  T373]  ? __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)
[   23.511691][  T373]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   23.511694][  T373]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   23.511697][  T373]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   23.511699][  T373]  ? nla_get_range_signed (lib/nlattr.c:270)
[   23.511704][  T373]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   23.511709][  T373]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   23.511714][  T373]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   23.511716][  T373]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   23.511721][  T373]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   23.511722][  T373]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   23.511725][  T373]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   23.511726][  T373]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   23.511730][  T373]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   23.511732][  T373]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   23.511735][  T373]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   23.511737][  T373]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   23.511741][  T373]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   23.511743][  T373]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   23.511747][  T373]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   23.511748][  T373]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   23.511751][  T373]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   23.511758][  T373]  ? 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))
[   23.511759][  T373]  ? 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))
[   23.511763][  T373]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   23.511767][  T373]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   23.511770][  T373]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   23.511774][  T373]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   23.511778][  T373]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   23.511782][  T373]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   23.511787][  T373]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   23.511790][  T373]  ? copy_msghdr_from_user (net/socket.c:2650)
[   23.511792][  T373]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   23.511794][  T373]  ? move_addr_to_kernel (net/socket.c:258)
[   23.511801][  T373]  ___sys_sendmsg (net/socket.c:2767)
[   23.511804][  T373]  ? copy_msghdr_from_user (net/socket.c:2619)
[   23.511820][  T373]  __sys_sendmsg (net/socket.c:2799)
[   23.511823][  T373]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   23.511829][  T373]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   23.511833][  T373]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   23.511836][  T373]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   23.511839][  T373]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   23.511841][  T373] RIP: 0033:0x7fb8838fe54e
[   23.511843][  T373] 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
[   23.511845][  T373] RSP: 002b:00007ffc7ac85470 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   23.511848][  T373] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fb8838fe54e
[   23.511849][  T373] RDX: 0000000000000000 RSI: 00007ffc7ac85520 RDI: 0000000000000005
[   23.511850][  T373] RBP: 00007ffc7ac85480 R08: 0000000000000000 R09: 0000000000000000
[   23.511851][  T373] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91b7e3


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
netlink_release:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print