======================================
| [   10.264545][  T207] softirqs last disabled at (38317): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   10.264547][  T207] Preemption disabled at:
| [   10.264548][  T207] 0x0
| [   10.264558][  T207] Tainted: [W]=WARN
[   10.264559][  T207] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.264561][  T207] Call Trace:
[   10.264562][  T207]  <TASK>
[   10.264564][  T207]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   10.264570][  T207]  __might_resched.cold (kernel/sched/core.c:9234)
[   10.264575][  T207]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   10.264579][  T207]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   10.264584][  T207]  __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))
[   10.264586][  T207]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.264592][  T207]  ? 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)
[   10.264595][  T207]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.264598][  T207]  put_chars (drivers/char/virtio_console.c:1176)
[   10.264600][  T207]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   10.264602][  T207]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   10.264607][  T207]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   10.264612][  T207]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   10.264618][  T207]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   10.264621][  T207]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.264623][  T207]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.264627][  T207]  console_emit_next_record (kernel/printk/printk.c:3183)
[   10.264631][  T207]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   10.264633][  T207]  ? 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))
[   10.264636][  T207]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.264638][  T207]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.264642][  T207]  console_flush_one_record (kernel/printk/printk.c:3268)
[   10.264647][  T207]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   10.264649][  T207]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.264654][  T207]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   10.264657][  T207]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   10.264658][  T207]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.264661][  T207]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   10.264664][  T207]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   10.264666][  T207]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   10.264670][  T207]  vprintk_emit (kernel/printk/printk.c:2479)
[   10.264673][  T207]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   10.264677][  T207]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.264681][  T207]  _printk (kernel/printk/printk.c:2504)
[   10.264684][  T207]  ? snapshot_read.cold (user.c:?)
[   10.264687][  T207]  ? do_raw_spin_lock (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:1301 ./include/asm-generic/qspinlock.h:112 kernel/locking/spinlock_debug.c:116)
[   10.264690][  T207]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   10.264694][  T207]  ? do_raw_spin_lock (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:1301 ./include/asm-generic/qspinlock.h:112 kernel/locking/spinlock_debug.c:116)
[   10.264696][  T207]  do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4))
[   10.264700][  T207]  ? exit_notify (kernel/exit.c:780)
[   10.264703][  T207]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   10.264705][  T207]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.264710][  T207]  do_group_exit (kernel/exit.c:1151)
[   10.264712][  T207]  __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160)
[   10.264714][  T207]  x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232)
[   10.264716][  T207]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   10.264720][  T207]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   10.264723][  T207]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.264725][  T207] RIP: 0033:0x7f4a99e6c1b8
[   10.264727][  T207] Code: Unable to access opcode bytes at 0x7f4a99e6c18e.

Code starting with the faulting instruction
===========================================
[   10.264728][  T207] RSP: 002b:00007ffdff3121f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[   10.264731][  T207] RAX: ffffffffffffffda RBX: 00007f4a99f9cf88 RCX: 00007f4a99e6c1b8
[   10.264732][  T207] RDX: 00007f4a99bb6fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000
[   10.264733][  T207] RBP: 00007ffdff312250 R08: 0000000000000000 R09: 0000000000008010
[   10.264734][  T207] R10: 00007ffdff312010 R11: 0000000000000246 R12: 0000000000000001
[   10.264735][  T207] R13: 0000000000000000 R14: 00007f4a99f9b680 R15: 00007f4a99f9cfa0
| [   12.234466][  T269] softirqs last disabled at (17582): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   12.234468][  T269] Preemption disabled at:
| [   12.234469][  T269] vprintk_emit (kernel/printk/printk.c:2471)
| [   12.234479][  T269] Tainted: [W]=WARN
[   12.234480][  T269] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.234481][  T269] Call Trace:
[   12.234483][  T269]  <TASK>
[   12.234484][  T269]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   12.234490][  T269]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   12.234492][  T269]  __might_resched.cold (kernel/sched/core.c:9234)
[   12.234497][  T269]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   12.234501][  T269]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   12.234506][  T269]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   12.234509][  T269]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.234514][  T269]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   12.234517][  T269]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.234520][  T269]  put_chars (drivers/char/virtio_console.c:1176)
[   12.234523][  T269]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   12.234527][  T269]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   12.234530][  T269]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   12.234533][  T269]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   12.234535][  T269]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.234536][  T269]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.234540][  T269]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   12.234542][  T269]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   12.234545][  T269]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.234549][  T269]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.234553][  T269]  console_emit_next_record (kernel/printk/printk.c:3183)
[   12.234557][  T269]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   12.234558][  T269]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   12.234561][  T269]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.234564][  T269]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.234568][  T269]  console_flush_one_record (kernel/printk/printk.c:3268)
[   12.234572][  T269]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   12.234573][  T269]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.234578][  T269]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   12.234581][  T269]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   12.234583][  T269]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.234585][  T269]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   12.234589][  T269]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   12.234590][  T269]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   12.234594][  T269]  vprintk_emit (kernel/printk/printk.c:2479)
[   12.234597][  T269]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   12.234600][  T269]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   12.234601][  T269]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   12.234607][  T269]  _printk (kernel/printk/printk.c:2504)
[   12.234610][  T269]  ? snapshot_read.cold (user.c:?)
[   12.234614][  T269]  ? br_multicast_flood (??:?) bridge
[   12.234626][  T269]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   12.234627][  T269]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   12.234629][  T269]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   12.234633][  T269] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   12.234643][  T269] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   12.234651][  T269] new_nbp (net/bridge/br_if.c:449) bridge
[   12.234660][  T269] br_add_if (net/bridge/br_if.c:592) bridge
[   12.234666][  T269]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   12.234670][  T269]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   12.234673][  T269]  ? __kernel_text_address (kernel/extable.c:79)
[   12.234677][  T269]  do_set_master (net/core/rtnetlink.c:3071)
[   12.234682][  T269]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   12.234685][  T269]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   12.234688][  T269]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   12.234689][  T269]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   12.234692][  T269]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   12.234695][  T269]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   12.234698][  T269]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   12.234700][  T269]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   12.234702][  T269]  ? kasan_save_stack (mm/kasan/common.c:58)
[   12.234705][  T269]  ? kasan_save_stack (mm/kasan/common.c:57)
[   12.234707][  T269]  ? kasan_save_track (mm/kasan/common.c:78)
[   12.234710][  T269]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.234712][  T269]  ? netlink_seq_next (net/netlink/af_netlink.c:2684)
[   12.234715][  T269]  ? ___sys_sendmsg (net/socket.c:2757)
[   12.234719][  T269]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.234721][  T269]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   12.234724][  T269]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.234726][  T269]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.234728][  T269]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.234730][  T269]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.234732][  T269]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   12.234736][  T269]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   12.234737][  T269]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   12.234740][  T269]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   12.234743][  T269]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   12.234744][  T269]  ? nla_get_range_signed (lib/nlattr.c:270)
[   12.234749][  T269]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   12.234754][  T269]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   12.234759][  T269]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   12.234761][  T269]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.234765][  T269]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.234767][  T269]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.234769][  T269]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   12.234771][  T269]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   12.234775][  T269]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   12.234777][  T269]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   12.234780][  T269]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   12.234781][  T269]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.234785][  T269]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.234787][  T269]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.234790][  T269]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   12.234792][  T269]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   12.234795][  T269]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   12.234801][  T269]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   12.234802][  T269]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   12.234806][  T269]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   12.234810][  T269]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   12.234813][  T269]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.234817][  T269]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   12.234820][  T269]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   12.234824][  T269]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   12.234829][  T269]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   12.234831][  T269]  ? copy_msghdr_from_user (net/socket.c:2650)
[   12.234834][  T269]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   12.234835][  T269]  ? move_addr_to_kernel (net/socket.c:258)
[   12.234842][  T269]  ___sys_sendmsg (net/socket.c:2767)
[   12.234845][  T269]  ? copy_msghdr_from_user (net/socket.c:2619)
[   12.234860][  T269]  __sys_sendmsg (net/socket.c:2799)
[   12.234863][  T269]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   12.234869][  T269]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.234873][  T269]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   12.234875][  T269]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   12.234877][  T269]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.234880][  T269] RIP: 0033:0x7f076965f54e
[   12.234883][  T269] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   12.234885][  T269] RSP: 002b:00007ffcd5449e80 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   12.234888][  T269] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f076965f54e
[   12.234889][  T269] RDX: 0000000000000000 RSI: 00007ffcd5449f30 RDI: 0000000000000005
[   12.234890][  T269] RBP: 00007ffcd5449e90 R08: 0000000000000000 R09: 0000000000000000
[   12.234891][  T269] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a918c19
[   12.234892][  T269] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffcd544a5f0
| [   22.455477][  T351] softirqs last disabled at (13716): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   22.455479][  T351] Preemption disabled at:
| [   22.455480][  T351] vprintk_emit (kernel/printk/printk.c:2471)
| [   22.455489][  T351] Tainted: [W]=WARN
[   22.455490][  T351] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   22.455492][  T351] Call Trace:
[   22.455494][  T351]  <TASK>
[   22.455495][  T351]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   22.455501][  T351]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   22.455503][  T351]  __might_resched.cold (kernel/sched/core.c:9234)
[   22.455508][  T351]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   22.455512][  T351]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   22.455518][  T351]  __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))
[   22.455520][  T351]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   22.455526][  T351]  ? 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)
[   22.455529][  T351]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   22.455532][  T351]  put_chars (drivers/char/virtio_console.c:1176)
[   22.455535][  T351]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   22.455536][  T351]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   22.455541][  T351]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   22.455546][  T351]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   22.455552][  T351]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   22.455554][  T351]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.455557][  T351]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   22.455561][  T351]  console_emit_next_record (kernel/printk/printk.c:3183)
[   22.455564][  T351]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   22.455566][  T351]  ? 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))
[   22.455569][  T351]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.455572][  T351]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   22.455575][  T351]  console_flush_one_record (kernel/printk/printk.c:3268)
[   22.455580][  T351]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   22.455581][  T351]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.455586][  T351]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   22.455589][  T351]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   22.455591][  T351]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.455593][  T351]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   22.455597][  T351]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   22.455599][  T351]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   22.455602][  T351]  vprintk_emit (kernel/printk/printk.c:2479)
[   22.455606][  T351]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   22.455608][  T351]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   22.455609][  T351]  ? netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   22.455612][  T351]  ? netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   22.455614][  T351]  ? ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   22.455616][  T351]  ? ___sys_sendmsg (net/socket.c:2767)
[   22.455617][  T351]  ? __sys_sendmsg (net/socket.c:2799)
[   22.455619][  T351]  ? do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   22.455624][  T351]  _printk (kernel/printk/printk.c:2504)
[   22.455628][  T351]  ? snapshot_read.cold (user.c:?)
[   22.455632][  T351]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   22.455636][  T351]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   22.455639][  T351]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   22.455642][  T351]  ? netdev_notice (net/core/dev.c:13194)
[   22.455645][  T351]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.455648][  T351]  ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1))
[   22.455650][  T351]  ? down_write_nested (kernel/locking/rwsem.c:1759)
[   22.455652][  T351]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   22.455654][  T351]  ? 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)
[   22.455657][  T351]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[   22.455662][  T351]  dev_set_allmulti (net/core/dev_api.c:315)
[   22.455666][  T351] del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341) bridge
[   22.455679][  T351]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   22.455685][  T351] br_del_if (net/bridge/br_if.c:732) bridge
[   22.455692][  T351]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   22.455695][  T351]  do_set_master (net/core/rtnetlink.c:3055)
[   22.455700][  T351]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   22.455703][  T351]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   22.455706][  T351]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   22.455707][  T351]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   22.455710][  T351]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   22.455714][  T351]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   22.455716][  T351]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   22.455718][  T351]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   22.455721][  T351]  ? kasan_save_stack (mm/kasan/common.c:58)
[   22.455724][  T351]  ? kasan_save_stack (mm/kasan/common.c:57)
[   22.455725][  T351]  ? kasan_save_track (mm/kasan/common.c:78)
[   22.455728][  T351]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.455730][  T351]  ? netlink_seq_next (net/netlink/af_netlink.c:2684)
[   22.455732][  T351]  ? ___sys_sendmsg (net/socket.c:2757)
[   22.455735][  T351]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   22.455737][  T351]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   22.455739][  T351]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.455742][  T351]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   22.455743][  T351]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.455745][  T351]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.455747][  T351]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   22.455750][  T351]  ? __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)
[   22.455752][  T351]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   22.455754][  T351]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   22.455758][  T351]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   22.455759][  T351]  ? nla_get_range_signed (lib/nlattr.c:270)
[   22.455764][  T351]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   22.455769][  T351]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   22.455774][  T351]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   22.455776][  T351]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.455780][  T351]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   22.455782][  T351]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   22.455784][  T351]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   22.455786][  T351]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   22.455790][  T351]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   22.455792][  T351]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   22.455794][  T351]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   22.455796][  T351]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.455800][  T351]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   22.455802][  T351]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   22.455805][  T351]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   22.455807][  T351]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   22.455810][  T351]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   22.455816][  T351]  ? 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))
[   22.455817][  T351]  ? 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))
[   22.455821][  T351]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   22.455825][  T351]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   22.455827][  T351]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.455831][  T351]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   22.455835][  T351]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   22.455839][  T351]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   22.455844][  T351]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   22.455847][  T351]  ? copy_msghdr_from_user (net/socket.c:2650)
[   22.455849][  T351]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   22.455850][  T351]  ? move_addr_to_kernel (net/socket.c:258)
[   22.455858][  T351]  ___sys_sendmsg (net/socket.c:2767)
[   22.455860][  T351]  ? copy_msghdr_from_user (net/socket.c:2619)
[   22.455876][  T351]  __sys_sendmsg (net/socket.c:2799)
[   22.455878][  T351]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   22.455884][  T351]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.455888][  T351]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   22.455889][  T351]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   22.455892][  T351]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   22.455895][  T351] RIP: 0033:0x7f47c288b54e
[   22.455899][  T351] 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
[   22.455901][  T351] RSP: 002b:00007ffc607784a0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   22.455904][  T351] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f47c288b54e
[   22.455905][  T351] RDX: 0000000000000000 RSI: 00007ffc60778550 RDI: 0000000000000005
[   22.455906][  T351] RBP: 00007ffc607784b0 R08: 0000000000000000 R09: 0000000000000000
[   22.455907][  T351] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a918c23
[   22.455908][  T351] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffc60778c10
| [   24.587336][  T354] softirqs last disabled at (13006): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   24.587339][  T354] Preemption disabled at:
| [   24.587339][  T354] vprintk_emit (kernel/printk/printk.c:2471)
| [   24.587349][  T354] Tainted: [W]=WARN
[   24.587349][  T354] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.587351][  T354] Call Trace:
[   24.587353][  T354]  <TASK>
[   24.587354][  T354]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   24.587360][  T354]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   24.587362][  T354]  __might_resched.cold (kernel/sched/core.c:9234)
[   24.587366][  T354]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   24.587371][  T354]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   24.587376][  T354]  __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))
[   24.587378][  T354]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   24.587384][  T354]  ? 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)
[   24.587386][  T354]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   24.587390][  T354]  put_chars (drivers/char/virtio_console.c:1176)
[   24.587391][  T354]  ? prb_final_commit (kernel/printk/printk_ringbuffer.c:1842)
[   24.587394][  T354]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   24.587397][  T354]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   24.587401][  T354]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   24.587403][  T354]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   24.587407][  T354]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   24.587410][  T354]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   24.587412][  T354]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.587413][  T354]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.587417][  T354]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   24.587419][  T354]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   24.587422][  T354]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.587424][  T354]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   24.587428][  T354]  console_emit_next_record (kernel/printk/printk.c:3183)
[   24.587432][  T354]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   24.587434][  T354]  ? 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))
[   24.587437][  T354]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.587439][  T354]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   24.587443][  T354]  console_flush_one_record (kernel/printk/printk.c:3268)
[   24.587447][  T354]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   24.587449][  T354]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.587454][  T354]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   24.587457][  T354]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   24.587459][  T354]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.587461][  T354]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   24.587465][  T354]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   24.587466][  T354]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   24.587469][  T354]  vprintk_emit (kernel/printk/printk.c:2479)
[   24.587474][  T354]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   24.587476][  T354]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   24.587481][  T354]  _printk (kernel/printk/printk.c:2504)
[   24.587485][  T354]  ? snapshot_read.cold (user.c:?)
[   24.587488][  T354]  ? br_multicast_flood (??:?) bridge
[   24.587501][  T354]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   24.587502][  T354]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   24.587504][  T354]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   24.587508][  T354] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   24.587518][  T354] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   24.587527][  T354] new_nbp (net/bridge/br_if.c:449) bridge
[   24.587535][  T354] br_add_if (net/bridge/br_if.c:592) bridge
[   24.587542][  T354]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   24.587546][  T354]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   24.587549][  T354]  ? __kernel_text_address (kernel/extable.c:79)
[   24.587553][  T354]  do_set_master (net/core/rtnetlink.c:3071)
[   24.587557][  T354]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   24.587560][  T354]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   24.587564][  T354]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   24.587565][  T354]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   24.587567][  T354]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   24.587570][  T354]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   24.587573][  T354]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   24.587574][  T354]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   24.587577][  T354]  ? kasan_save_stack (mm/kasan/common.c:58)
[   24.587580][  T354]  ? kasan_save_stack (mm/kasan/common.c:57)
[   24.587582][  T354]  ? kasan_save_track (mm/kasan/common.c:78)
[   24.587584][  T354]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.587586][  T354]  ? netlink_seq_next (net/netlink/af_netlink.c:2684)
[   24.587589][  T354]  ? ___sys_sendmsg (net/socket.c:2757)
[   24.587594][  T354]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   24.587596][  T354]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   24.587598][  T354]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.587600][  T354]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   24.587602][  T354]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.587604][  T354]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.587606][  T354]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   24.587610][  T354]  ? __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)
[   24.587613][  T354]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   24.587615][  T354]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   24.587618][  T354]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   24.587619][  T354]  ? nla_get_range_signed (lib/nlattr.c:270)
[   24.587624][  T354]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   24.587629][  T354]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   24.587634][  T354]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   24.587636][  T354]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.587640][  T354]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   24.587642][  T354]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   24.587644][  T354]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   24.587646][  T354]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   24.587650][  T354]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   24.587652][  T354]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   24.587655][  T354]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   24.587656][  T354]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.587660][  T354]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   24.587662][  T354]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   24.587665][  T354]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   24.587667][  T354]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   24.587670][  T354]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   24.587676][  T354]  ? 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))
[   24.587677][  T354]  ? 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))
[   24.587681][  T354]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   24.587685][  T354]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   24.587687][  T354]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.587691][  T354]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   24.587695][  T354]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   24.587699][  T354]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   24.587704][  T354]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   24.587706][  T354]  ? copy_msghdr_from_user (net/socket.c:2650)
[   24.587708][  T354]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   24.587710][  T354]  ? move_addr_to_kernel (net/socket.c:258)
[   24.587717][  T354]  ___sys_sendmsg (net/socket.c:2767)
[   24.587720][  T354]  ? copy_msghdr_from_user (net/socket.c:2619)
[   24.587735][  T354]  __sys_sendmsg (net/socket.c:2799)
[   24.587738][  T354]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   24.587744][  T354]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.587747][  T354]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   24.587750][  T354]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   24.587752][  T354]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   24.587755][  T354] RIP: 0033:0x7fb6000b854e
[   24.587758][  T354] 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
[   24.587760][  T354] RSP: 002b:00007ffec962a820 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   24.587763][  T354] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fb6000b854e
[   24.587764][  T354] RDX: 0000000000000000 RSI: 00007ffec962a8d0 RDI: 0000000000000005
[   24.587765][  T354] RBP: 00007ffec962a830 R08: 0000000000000000 R09: 0000000000000000
[   24.587766][  T354] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a918c26
[   24.587767][  T354] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffec962af90
| [   29.188971][  T407] softirqs last disabled at (11718): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   29.188974][  T407] Preemption disabled at:
| [   29.188974][  T407] vprintk_emit (kernel/printk/printk.c:2471)
| [   29.188983][  T407] Tainted: [W]=WARN
[   29.188984][  T407] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   29.188986][  T407] Call Trace:
[   29.188987][  T407]  <TASK>
[   29.188989][  T407]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   29.188995][  T407]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   29.188997][  T407]  __might_resched.cold (kernel/sched/core.c:9234)
[   29.189002][  T407]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   29.189006][  T407]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   29.189011][  T407]  __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))
[   29.189013][  T407]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   29.189019][  T407]  ? 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)
[   29.189022][  T407]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   29.189025][  T407]  put_chars (drivers/char/virtio_console.c:1176)
[   29.189027][  T407]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   29.189029][  T407]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   29.189033][  T407]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   29.189038][  T407]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   29.189045][  T407]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   29.189047][  T407]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.189049][  T407]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   29.189053][  T407]  console_emit_next_record (kernel/printk/printk.c:3183)
[   29.189057][  T407]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   29.189059][  T407]  ? 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))
[   29.189062][  T407]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.189064][  T407]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   29.189068][  T407]  console_flush_one_record (kernel/printk/printk.c:3268)
[   29.189072][  T407]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   29.189074][  T407]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   29.189079][  T407]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   29.189082][  T407]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   29.189084][  T407]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.189086][  T407]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   29.189090][  T407]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   29.189092][  T407]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   29.189095][  T407]  vprintk_emit (kernel/printk/printk.c:2479)
[   29.189099][  T407]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   29.189100][  T407]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   29.189102][  T407]  ? netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   29.189105][  T407]  ? netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   29.189107][  T407]  ? ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   29.189109][  T407]  ? ___sys_sendmsg (net/socket.c:2767)
[   29.189110][  T407]  ? __sys_sendmsg (net/socket.c:2799)
[   29.189112][  T407]  ? do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   29.189117][  T407]  _printk (kernel/printk/printk.c:2504)
[   29.189121][  T407]  ? snapshot_read.cold (user.c:?)
[   29.189125][  T407]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   29.189128][  T407]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   29.189132][  T407]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   29.189134][  T407]  ? netdev_notice (net/core/dev.c:13194)
[   29.189138][  T407]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.189140][  T407]  ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1))
[   29.189143][  T407]  ? down_write_nested (kernel/locking/rwsem.c:1759)
[   29.189144][  T407]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   29.189147][  T407]  ? 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)
[   29.189150][  T407]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[   29.189154][  T407]  dev_set_allmulti (net/core/dev_api.c:315)
[   29.189158][  T407] del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341) bridge
[   29.189170][  T407]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   29.189177][  T407] br_del_if (net/bridge/br_if.c:732) bridge
[   29.189184][  T407]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   29.189187][  T407]  do_set_master (net/core/rtnetlink.c:3055)
[   29.189192][  T407]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   29.189195][  T407]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   29.189198][  T407]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   29.189199][  T407]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   29.189202][  T407]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   29.189205][  T407]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   29.189208][  T407]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   29.189210][  T407]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   29.189212][  T407]  ? kasan_save_stack (mm/kasan/common.c:58)
[   29.189215][  T407]  ? kasan_save_stack (mm/kasan/common.c:57)
[   29.189217][  T407]  ? kasan_save_track (mm/kasan/common.c:78)
[   29.189219][  T407]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   29.189221][  T407]  ? netlink_seq_next (net/netlink/af_netlink.c:2684)
[   29.189223][  T407]  ? ___sys_sendmsg (net/socket.c:2757)
[   29.189227][  T407]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   29.189228][  T407]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   29.189231][  T407]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.189234][  T407]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   29.189235][  T407]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.189237][  T407]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.189239][  T407]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   29.189242][  T407]  ? __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)
[   29.189244][  T407]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   29.189246][  T407]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   29.189249][  T407]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   29.189251][  T407]  ? nla_get_range_signed (lib/nlattr.c:270)
[   29.189256][  T407]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   29.189261][  T407]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   29.189266][  T407]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   29.189268][  T407]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   29.189278][  T407]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   29.189280][  T407]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   29.189282][  T407]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   29.189285][  T407]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   29.189289][  T407]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   29.189291][  T407]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   29.189294][  T407]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   29.189295][  T407]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   29.189299][  T407]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   29.189301][  T407]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   29.189305][  T407]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   29.189306][  T407]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   29.189309][  T407]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   29.189315][  T407]  ? 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))
[   29.189317][  T407]  ? 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))
[   29.189321][  T407]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   29.189325][  T407]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   29.189327][  T407]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   29.189331][  T407]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   29.189335][  T407]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   29.189339][  T407]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   29.189344][  T407]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   29.189346][  T407]  ? copy_msghdr_from_user (net/socket.c:2650)
[   29.189348][  T407]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   29.189350][  T407]  ? move_addr_to_kernel (net/socket.c:258)
[   29.189357][  T407]  ___sys_sendmsg (net/socket.c:2767)
[   29.189360][  T407]  ? copy_msghdr_from_user (net/socket.c:2619)
[   29.189375][  T407]  __sys_sendmsg (net/socket.c:2799)
[   29.189378][  T407]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   29.189384][  T407]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.189388][  T407]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   29.189390][  T407]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   29.189393][  T407]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   29.189395][  T407] RIP: 0033:0x7f1596cf954e
[   29.189398][  T407] 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
[   29.189400][  T407] RSP: 002b:00007ffc072da6e0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   29.189403][  T407] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f1596cf954e
[   29.189404][  T407] RDX: 0000000000000000 RSI: 00007ffc072da790 RDI: 0000000000000005
[   29.189405][  T407] RBP: 00007ffc072da6f0 R08: 0000000000000000 R09: 0000000000000000
[   29.189406][  T407] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a918c2a


Finger prints:
__alloc_skb:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars
__irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print