======================================
| [    9.656395][  T188] softirqs last disabled at (25351): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [    9.656397][  T188] Preemption disabled at:
| [    9.656398][  T188] 0x0
| [    9.656408][  T188] Tainted: [W]=WARN
[    9.656409][  T188] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.656411][  T188] Call Trace:
[    9.656412][  T188]  <TASK>
[    9.656414][  T188]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[    9.656420][  T188]  __might_resched.cold (kernel/sched/core.c:9234)
[    9.656425][  T188]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[    9.656429][  T188]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[    9.656435][  T188]  __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))
[    9.656437][  T188]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[    9.656443][  T188]  ? 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)
[    9.656445][  T188]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[    9.656449][  T188]  put_chars (drivers/char/virtio_console.c:1176)
[    9.656451][  T188]  ? __send_to_port (drivers/char/virtio_console.c:654)
[    9.656453][  T188]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[    9.656458][  T188]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[    9.656463][  T188]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[    9.656469][  T188]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[    9.656471][  T188]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.656474][  T188]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[    9.656478][  T188]  console_emit_next_record (kernel/printk/printk.c:3183)
[    9.656482][  T188]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[    9.656483][  T188]  ? 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))
[    9.656487][  T188]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.656489][  T188]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[    9.656493][  T188]  console_flush_one_record (kernel/printk/printk.c:3268)
[    9.656497][  T188]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[    9.656499][  T188]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[    9.656504][  T188]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[    9.656507][  T188]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[    9.656509][  T188]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.656511][  T188]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[    9.656515][  T188]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[    9.656517][  T188]  ? vprintk_emit (kernel/printk/printk.c:2478)
[    9.656520][  T188]  vprintk_emit (kernel/printk/printk.c:2479)
[    9.656524][  T188]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[    9.656527][  T188]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[    9.656531][  T188]  _printk (kernel/printk/printk.c:2504)
[    9.656535][  T188]  ? snapshot_read.cold (user.c:?)
[    9.656538][  T188]  ? 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)
[    9.656541][  T188]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[    9.656544][  T188]  ? 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)
[    9.656547][  T188]  do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4))
[    9.656551][  T188]  ? exit_notify (kernel/exit.c:780)
[    9.656553][  T188]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[    9.656556][  T188]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.656560][  T188]  do_group_exit (kernel/exit.c:1151)
[    9.656563][  T188]  __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160)
[    9.656564][  T188]  x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232)
[    9.656566][  T188]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[    9.656570][  T188]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[    9.656573][  T188]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.656575][  T188] RIP: 0033:0x7fa7923171b8
[    9.656578][  T188] Code: Unable to access opcode bytes at 0x7fa79231718e.

Code starting with the faulting instruction
===========================================
[    9.656579][  T188] RSP: 002b:00007ffc506d6c98 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[    9.656581][  T188] RAX: ffffffffffffffda RBX: 00007fa792447f88 RCX: 00007fa7923171b8
[    9.656583][  T188] RDX: 00007fa792061fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000
[    9.656584][  T188] RBP: 00007ffc506d6cf0 R08: 0000000000000000 R09: 0000000000008010
[    9.656585][  T188] R10: 00007ffc506d6ab0 R11: 0000000000000246 R12: 0000000000000001
[    9.656586][  T188] R13: 0000000000000000 R14: 00007fa792446680 R15: 00007fa792447fa0
| [   11.375603][  T255] softirqs last disabled at (20152): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   11.375605][  T255] Preemption disabled at:
| [   11.375606][  T255] vprintk_emit (kernel/printk/printk.c:2471)
| [   11.375616][  T255] Tainted: [W]=WARN
[   11.375617][  T255] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.375619][  T255] Call Trace:
[   11.375621][  T255]  <TASK>
[   11.375622][  T255]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   11.375628][  T255]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   11.375631][  T255]  __might_resched.cold (kernel/sched/core.c:9234)
[   11.375635][  T255]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   11.375640][  T255]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   11.375645][  T255]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   11.375648][  T255]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.375653][  T255]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   11.375656][  T255]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.375660][  T255]  put_chars (drivers/char/virtio_console.c:1176)
[   11.375662][  T255]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   11.375667][  T255]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   11.375670][  T255]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   11.375674][  T255]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   11.375676][  T255]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.375677][  T255]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.375681][  T255]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   11.375683][  T255]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   11.375686][  T255]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.375691][  T255]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.375695][  T255]  console_emit_next_record (kernel/printk/printk.c:3183)
[   11.375699][  T255]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   11.375700][  T255]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   11.375704][  T255]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.375706][  T255]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.375710][  T255]  console_flush_one_record (kernel/printk/printk.c:3268)
[   11.375714][  T255]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   11.375716][  T255]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.375721][  T255]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   11.375724][  T255]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   11.375726][  T255]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.375728][  T255]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   11.375732][  T255]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   11.375734][  T255]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   11.375737][  T255]  vprintk_emit (kernel/printk/printk.c:2479)
[   11.375741][  T255]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   11.375744][  T255]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.375745][  T255]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   11.375750][  T255]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   11.375753][  T255]  _printk (kernel/printk/printk.c:2504)
[   11.375757][  T255]  ? snapshot_read.cold (user.c:?)
[   11.375761][  T255]  ? br_multicast_flood (??:?) bridge
[   11.375774][  T255]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   11.375776][  T255]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   11.375777][  T255]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   11.375781][  T255] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   11.375791][  T255] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   11.375800][  T255] new_nbp (net/bridge/br_if.c:449) bridge
[   11.375809][  T255] br_add_if (net/bridge/br_if.c:592) bridge
[   11.375816][  T255]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   11.375821][  T255]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   11.375824][  T255]  ? __kernel_text_address (kernel/extable.c:79)
[   11.375828][  T255]  do_set_master (net/core/rtnetlink.c:3071)
[   11.375832][  T255]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   11.375835][  T255]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   11.375846][  T255]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   11.375847][  T255]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   11.375850][  T255]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   11.375853][  T255]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   11.375856][  T255]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   11.375858][  T255]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   11.375861][  T255]  ? kasan_save_stack (mm/kasan/common.c:58)
[   11.375864][  T255]  ? kasan_save_stack (mm/kasan/common.c:57)
[   11.375865][  T255]  ? kasan_save_track (mm/kasan/common.c:78)
[   11.375868][  T255]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.375870][  T255]  ? netlink_seq_next (net/netlink/af_netlink.c:2684)
[   11.375873][  T255]  ? ___sys_sendmsg (net/socket.c:2757)
[   11.375878][  T255]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.375880][  T255]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   11.375883][  T255]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.375885][  T255]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.375887][  T255]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.375888][  T255]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.375891][  T255]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   11.375895][  T255]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   11.375896][  T255]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   11.375899][  T255]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   11.375902][  T255]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   11.375904][  T255]  ? nla_get_range_signed (lib/nlattr.c:270)
[   11.375909][  T255]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   11.375914][  T255]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   11.375920][  T255]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.375922][  T255]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.375926][  T255]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.375928][  T255]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   11.375930][  T255]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.375932][  T255]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.375936][  T255]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.375938][  T255]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   11.375941][  T255]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.375943][  T255]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.375947][  T255]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.375949][  T255]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   11.375953][  T255]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   11.375954][  T255]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.375957][  T255]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   11.375964][  T255]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   11.375965][  T255]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   11.375971][  T255]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   11.375975][  T255]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   11.375978][  T255]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.375982][  T255]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   11.375986][  T255]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   11.375990][  T255]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   11.375995][  T255]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   11.375998][  T255]  ? copy_msghdr_from_user (net/socket.c:2650)
[   11.376000][  T255]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   11.376002][  T255]  ? move_addr_to_kernel (net/socket.c:258)
[   11.376010][  T255]  ___sys_sendmsg (net/socket.c:2767)
[   11.376012][  T255]  ? copy_msghdr_from_user (net/socket.c:2619)
[   11.376029][  T255]  __sys_sendmsg (net/socket.c:2799)
[   11.376032][  T255]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   11.376039][  T255]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.376042][  T255]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   11.376045][  T255]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   11.376048][  T255]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.376050][  T255] RIP: 0033:0x7fe6c8a9d54e
[   11.376054][  T255] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   11.376056][  T255] RSP: 002b:00007ffcd696ea50 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   11.376059][  T255] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fe6c8a9d54e
[   11.376060][  T255] RDX: 0000000000000000 RSI: 00007ffcd696eb00 RDI: 0000000000000005
[   11.376061][  T255] RBP: 00007ffcd696ea60 R08: 0000000000000000 R09: 0000000000000000
[   11.376062][  T255] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a918c24
[   11.376063][  T255] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffcd696f1c0
| [   17.728922][  T498] softirqs last disabled at (13428): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   17.728925][  T498] Preemption disabled at:
| [   17.728925][  T498] vprintk_emit (kernel/printk/printk.c:2471)
| [   17.728935][  T498] Tainted: [W]=WARN
[   17.728936][  T498] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   17.728937][  T498] Call Trace:
[   17.728939][  T498]  <TASK>
[   17.728941][  T498]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   17.728946][  T498]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   17.728948][  T498]  __might_resched.cold (kernel/sched/core.c:9234)
[   17.728953][  T498]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   17.728958][  T498]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   17.728963][  T498]  __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))
[   17.728965][  T498]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   17.728972][  T498]  ? 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)
[   17.728975][  T498]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   17.728979][  T498]  put_chars (drivers/char/virtio_console.c:1176)
[   17.728981][  T498]  ? prb_final_commit (kernel/printk/printk_ringbuffer.c:1842)
[   17.728983][  T498]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   17.728986][  T498]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   17.728990][  T498]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   17.728993][  T498]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   17.728996][  T498]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   17.728999][  T498]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   17.729001][  T498]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   17.729002][  T498]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   17.729006][  T498]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   17.729008][  T498]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   17.729011][  T498]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.729014][  T498]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   17.729018][  T498]  console_emit_next_record (kernel/printk/printk.c:3183)
[   17.729022][  T498]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   17.729023][  T498]  ? 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))
[   17.729026][  T498]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.729029][  T498]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   17.729033][  T498]  console_flush_one_record (kernel/printk/printk.c:3268)
[   17.729037][  T498]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   17.729039][  T498]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   17.729044][  T498]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   17.729047][  T498]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   17.729049][  T498]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.729051][  T498]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   17.729055][  T498]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   17.729056][  T498]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   17.729060][  T498]  vprintk_emit (kernel/printk/printk.c:2479)
[   17.729064][  T498]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   17.729066][  T498]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   17.729069][  T498]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   17.729072][  T498]  _printk (kernel/printk/printk.c:2504)
[   17.729076][  T498]  ? snapshot_read.cold (user.c:?)
[   17.729080][  T498]  ? br_multicast_flood (??:?) bridge
[   17.729092][  T498]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   17.729094][  T498]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   17.729095][  T498]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   17.729099][  T498] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   17.729109][  T498] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   17.729118][  T498] new_nbp (net/bridge/br_if.c:449) bridge
[   17.729127][  T498] br_add_if (net/bridge/br_if.c:592) bridge
[   17.729134][  T498]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   17.729138][  T498]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   17.729141][  T498]  ? __kernel_text_address (kernel/extable.c:79)
[   17.729145][  T498]  do_set_master (net/core/rtnetlink.c:3071)
[   17.729150][  T498]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   17.729153][  T498]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   17.729156][  T498]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   17.729157][  T498]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   17.729159][  T498]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   17.729162][  T498]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   17.729165][  T498]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   17.729167][  T498]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   17.729169][  T498]  ? kasan_save_stack (mm/kasan/common.c:58)
[   17.729172][  T498]  ? kasan_save_stack (mm/kasan/common.c:57)
[   17.729174][  T498]  ? kasan_save_track (mm/kasan/common.c:78)
[   17.729176][  T498]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   17.729178][  T498]  ? netlink_seq_next (net/netlink/af_netlink.c:2684)
[   17.729181][  T498]  ? ___sys_sendmsg (net/socket.c:2757)
[   17.729186][  T498]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   17.729188][  T498]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   17.729190][  T498]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.729193][  T498]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   17.729194][  T498]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.729196][  T498]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.729198][  T498]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   17.729202][  T498]  ? __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)
[   17.729205][  T498]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   17.729207][  T498]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   17.729211][  T498]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   17.729212][  T498]  ? nla_get_range_signed (lib/nlattr.c:270)
[   17.729217][  T498]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   17.729222][  T498]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   17.729227][  T498]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   17.729229][  T498]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   17.729233][  T498]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   17.729235][  T498]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   17.729237][  T498]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   17.729239][  T498]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   17.729243][  T498]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   17.729245][  T498]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   17.729248][  T498]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   17.729249][  T498]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   17.729254][  T498]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   17.729256][  T498]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   17.729259][  T498]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   17.729261][  T498]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   17.729263][  T498]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   17.729269][  T498]  ? 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))
[   17.729271][  T498]  ? 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))
[   17.729275][  T498]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   17.729279][  T498]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   17.729282][  T498]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   17.729286][  T498]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   17.729289][  T498]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   17.729293][  T498]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   17.729298][  T498]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   17.729301][  T498]  ? copy_msghdr_from_user (net/socket.c:2650)
[   17.729303][  T498]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   17.729305][  T498]  ? move_addr_to_kernel (net/socket.c:258)
[   17.729312][  T498]  ___sys_sendmsg (net/socket.c:2767)
[   17.729315][  T498]  ? copy_msghdr_from_user (net/socket.c:2619)
[   17.729330][  T498]  __sys_sendmsg (net/socket.c:2799)
[   17.729333][  T498]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   17.729339][  T498]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.729343][  T498]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   17.729345][  T498]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   17.729348][  T498]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   17.729351][  T498] RIP: 0033:0x7fd1ef1e554e
[   17.729354][  T498] 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
[   17.729356][  T498] RSP: 002b:00007fff49cfe3d0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   17.729359][  T498] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fd1ef1e554e
[   17.729360][  T498] RDX: 0000000000000000 RSI: 00007fff49cfe480 RDI: 0000000000000005
[   17.729361][  T498] RBP: 00007fff49cfe3e0 R08: 0000000000000000 R09: 0000000000000000
[   17.729362][  T498] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a918c2b
[   17.729363][  T498] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fff49cfeb40
| [   18.228308][  T518]
| [   18.228309][  T518]
| [   18.228309][  T518] stack backtrace:
| [   18.228317][  T518] Tainted: [W]=WARN
[   18.228318][  T518] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   18.228320][  T518] Call Trace:
[   18.228322][  T518]  <TASK>
[   18.228324][  T518]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   18.228329][  T518]  print_bad_irq_dependency (kernel/locking/lockdep.c:2632)
[   18.228333][  T518]  check_irq_usage (kernel/locking/lockdep.c:2873 (discriminator 1))
[   18.228336][  T518]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   18.228340][  T518]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   18.228345][  T518]  ? check_path.constprop.0 (kernel/locking/lockdep.c:1864 kernel/locking/lockdep.c:2147)
[   18.228348][  T518]  ? check_prev_add (kernel/locking/lockdep.c:3185)
[   18.228350][  T518]  check_prev_add (kernel/locking/lockdep.c:3185)
[   18.228354][  T518]  validate_chain (kernel/locking/lockdep.c:3300 kernel/locking/lockdep.c:3924)
[   18.228357][  T518]  __lock_acquire (kernel/locking/lockdep.c:5254)
[   18.228360][  T518]  lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   18.228363][  T518]  ? console_lock_spinning_enable (kernel/printk/printk.c:1902 (discriminator 2))
[   18.228366][  T518]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   18.228369][  T518]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   18.228372][  T518]  console_lock_spinning_enable (kernel/printk/printk.c:1902 (discriminator 2))
[   18.228374][  T518]  ? console_lock_spinning_enable (kernel/printk/printk.c:1902 (discriminator 2))
[   18.228377][  T518]  console_emit_next_record (kernel/printk/printk.c:3177)
[   18.228380][  T518]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   18.228382][  T518]  ? 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))
[   18.228385][  T518]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   18.228388][  T518]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   18.228391][  T518]  console_flush_one_record (kernel/printk/printk.c:3268)
[   18.228394][  T518]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   18.228396][  T518]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   18.228400][  T518]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   18.228403][  T518]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   18.228405][  T518]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   18.228408][  T518]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   18.228411][  T518]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   18.228413][  T518]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   18.228416][  T518]  vprintk_emit (kernel/printk/printk.c:2479)
[   18.228419][  T518]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   18.228422][  T518]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   18.228425][  T518]  _printk (kernel/printk/printk.c:2504)
[   18.228428][  T518]  ? snapshot_read.cold (user.c:?)
[   18.228431][  T518]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   18.228434][  T518]  ? br_fdb_find (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/bridge/br_fdb.c:230 (discriminator 2)) bridge
[   18.228446][  T518] fdb_add_local.cold (net/bridge/br_fdb.c:445 (discriminator 4) net/bridge/br_fdb.c:430 (discriminator 4)) bridge
[   18.228458][  T518] br_fdb_add_local (net/bridge/br_fdb.c:961) bridge
[   18.228470][  T518] br_add_if (net/bridge/br_if.c:655) bridge
[   18.228482][  T518]  do_set_master (net/core/rtnetlink.c:3071)
[   18.228486][  T518]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   18.228489][  T518]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   18.228492][  T518]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   18.228494][  T518]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   18.228496][  T518]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   18.228500][  T518]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   18.228503][  T518]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   18.228505][  T518]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   18.228508][  T518]  ? kasan_save_stack (mm/kasan/common.c:58)
[   18.228511][  T518]  ? kasan_save_stack (mm/kasan/common.c:57)
[   18.228514][  T518]  ? kasan_save_track (mm/kasan/common.c:78)
[   18.228516][  T518]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   18.228519][  T518]  ? netlink_seq_next (net/netlink/af_netlink.c:2684)
[   18.228521][  T518]  ? ___sys_sendmsg (net/socket.c:2757)
[   18.228524][  T518]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   18.228526][  T518]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   18.228528][  T518]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   18.228531][  T518]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   18.228533][  T518]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   18.228535][  T518]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   18.228538][  T518]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   18.228542][  T518]  ? __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)
[   18.228544][  T518]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   18.228546][  T518]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   18.228549][  T518]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   18.228551][  T518]  ? nla_get_range_signed (lib/nlattr.c:270)
[   18.228554][  T518]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   18.228558][  T518]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   18.228561][  T518]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   18.228563][  T518]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   18.228566][  T518]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   18.228569][  T518]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   18.228571][  T518]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   18.228573][  T518]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   18.228576][  T518]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   18.228578][  T518]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   18.228581][  T518]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   18.228583][  T518]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   18.228586][  T518]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   18.228588][  T518]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   18.228591][  T518]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   18.228593][  T518]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   18.228596][  T518]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   18.228600][  T518]  ? 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))
[   18.228602][  T518]  ? 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))
[   18.228605][  T518]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   18.228608][  T518]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   18.228610][  T518]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   18.228614][  T518]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   18.228617][  T518]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   18.228620][  T518]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   18.228625][  T518]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   18.228627][  T518]  ? copy_msghdr_from_user (net/socket.c:2650)
[   18.228630][  T518]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   18.228632][  T518]  ? move_addr_to_kernel (net/socket.c:258)
[   18.228636][  T518]  ___sys_sendmsg (net/socket.c:2767)
[   18.228639][  T518]  ? copy_msghdr_from_user (net/socket.c:2619)
[   18.228647][  T518]  __sys_sendmsg (net/socket.c:2799)
[   18.228650][  T518]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   18.228654][  T518]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   18.228657][  T518]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   18.228659][  T518]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   18.228662][  T518]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   18.228665][  T518] RIP: 0033:0x7f2ae146054e
[   18.228668][  T518] 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
[   18.228671][  T518] RSP: 002b:00007fffdff54ad0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   18.228675][  T518] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f2ae146054e
[   18.228677][  T518] RDX: 0000000000000000 RSI: 00007fffdff54b80 RDI: 0000000000000005
[   18.228679][  T518] RBP: 00007fffdff54ae0 R08: 0000000000000000 R09: 0000000000000000
[   18.228680][  T518] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a918c2b
[   18.228681][  T518] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fffdff55240
| [   29.353954][ T1263] softirqs last disabled at (0): 0x0
| [   29.353956][ T1263] Preemption disabled at:
| [   29.353957][ T1263] vprintk_emit (kernel/printk/printk.c:2471)
| [   29.353974][ T1263] Tainted: [W]=WARN
[   29.353975][ T1263] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   29.353978][ T1263] Call Trace:
[   29.353979][ T1263]  <TASK>
[   29.353981][ T1263]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   29.353987][ T1263]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   29.353990][ T1263]  __might_resched.cold (kernel/sched/core.c:9234)
[   29.353994][ T1263]  ? __module_address (kernel/module/main.c:3915)
[   29.353998][ T1263]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   29.354002][ T1263]  ? prb_next_reserve_seq (kernel/printk/printk_ringbuffer.c:2128)
[   29.354004][ T1263]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.354009][ T1263]  __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))
[   29.354013][ T1263]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   29.354017][ T1263]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   29.354022][ T1263]  ? 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)
[   29.354024][ T1263]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   29.354027][ T1263]  put_chars (drivers/char/virtio_console.c:1176)
[   29.354029][ T1263]  ? prb_final_commit (kernel/printk/printk_ringbuffer.c:1842)
[   29.354032][ T1263]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   29.354034][ T1263]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   29.354038][ T1263]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   29.354043][ T1263]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   29.354045][ T1263]  ? 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)
[   29.354047][ T1263]  ? vsnprintf (lib/vsprintf.c:2900)
[   29.354051][ T1263]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   29.354053][ T1263]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.354056][ T1263]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   29.354059][ T1263]  console_emit_next_record (kernel/printk/printk.c:3183)
[   29.354063][ T1263]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   29.354066][ T1263]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.354068][ T1263]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.354070][ T1263]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.354073][ T1263]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   29.354076][ T1263]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   29.354078][ T1263]  console_flush_one_record (kernel/printk/printk.c:3268)
[   29.354082][ T1263]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   29.354086][ T1263]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   29.354088][ T1263]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   29.354090][ T1263]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   29.354093][ T1263]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.354095][ T1263]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   29.354097][ T1263]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   29.354099][ T1263]  ? __rcu_read_lock (kernel/rcu/tree_plugin.h:391 (discriminator 6) kernel/rcu/tree_plugin.h:414 (discriminator 6))
[   29.354102][ T1263]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   29.354105][ T1263]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   29.354108][ T1263]  vprintk_emit (kernel/printk/printk.c:2479)
[   29.354112][ T1263]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   29.354115][ T1263]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   29.354117][ T1263]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[   29.354119][ T1263]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   29.354121][ T1263]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.354125][ T1263]  _printk (kernel/printk/printk.c:2504)
[   29.354129][ T1263]  ? snapshot_read.cold (user.c:?)
[   29.354132][ T1263]  ? br_multicast_flood (??:?) bridge
[   29.354148][ T1263]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   29.354152][ T1263]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   29.354153][ T1263]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   29.354157][ T1263] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   29.354171][ T1263] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   29.354183][ T1263] new_nbp (net/bridge/br_if.c:449) bridge
[   29.354195][ T1263] br_add_if (net/bridge/br_if.c:592) bridge
[   29.354206][ T1263]  ? bpf_address_lookup (kernel/bpf/core.c:730)
[   29.354210][ T1263]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   29.354213][ T1263]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   29.354216][ T1263]  ? __kernel_text_address (kernel/extable.c:79)
[   29.354219][ T1263]  do_set_master (net/core/rtnetlink.c:3071)
[   29.354224][ T1263]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   29.354226][ T1263]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   29.354228][ T1263]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   29.354230][ T1263]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.354233][ T1263]  ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[   29.354238][ T1263]  ? kasan_save_stack (mm/kasan/common.c:58)
[   29.354241][ T1263]  ? kasan_save_stack (mm/kasan/common.c:57)
[   29.354244][ T1263]  ? kasan_save_track (mm/kasan/common.c:78)
[   29.354246][ T1263]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   29.354248][ T1263]  ? __kmalloc_cache_noprof (./include/linux/kasan.h:263 mm/slub.c:5563)
[   29.354250][ T1263]  ? rtnl_newlink (./include/linux/slab.h:991 (discriminator 1) net/core/rtnetlink.c:4113 (discriminator 1))
[   29.354252][ T1263]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   29.354254][ T1263]  ? netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   29.354257][ T1263]  ? netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   29.354259][ T1263]  ? netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   29.354261][ T1263]  ? ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   29.354264][ T1263]  ? ___sys_sendmsg (net/socket.c:2767)
[   29.354267][ T1263]  ? __sys_sendmsg (net/socket.c:2799)
[   29.354269][ T1263]  ? do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   29.354272][ T1263]  ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   29.354275][ T1263]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.354278][ T1263]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   29.354280][ T1263]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.354282][ T1263]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.354285][ T1263]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   29.354289][ T1263]  ? __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)
[   29.354292][ T1263]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   29.354294][ T1263]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   29.354297][ T1263]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   29.354299][ T1263]  ? nla_get_range_signed (lib/nlattr.c:270)
[   29.354302][ T1263]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   29.354305][ T1263]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   29.354309][ T1263]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.354311][ T1263]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   29.354313][ T1263]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   29.354315][ T1263]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.354318][ T1263]  ? is_bpf_text_address (./include/linux/rcupdate.h:850 kernel/bpf/core.c:749)
[   29.354320][ T1263]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   29.354323][ T1263]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   29.354325][ T1263]  ? __kernel_text_address (kernel/extable.c:79)
[   29.354327][ T1263]  ? write_profile (profile.c:?)
[   29.354329][ T1263]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   29.354332][ T1263]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.354335][ T1263]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.354337][ T1263]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   29.354341][ T1263]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   29.354343][ T1263]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.354346][ T1263]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   29.354348][ T1263]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   29.354351][ T1263]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   29.354353][ T1263]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[   29.354355][ T1263]  ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[   29.354359][ T1263]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   29.354361][ T1263]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   29.354363][ T1263]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   29.354365][ T1263]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   29.354367][ T1263]  ? __netlink_lookup (./include/linux/rcupdate.h:850 ./include/linux/rhashtable.h:709 net/netlink/af_netlink.c:499)
[   29.354371][ T1263]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.354374][ T1263]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   29.354377][ T1263]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   29.354380][ T1263]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   29.354383][ T1263]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.354385][ T1263]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.354387][ T1263]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   29.354390][ T1263]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   29.354393][ T1263]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   29.354396][ T1263]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.354399][ T1263]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   29.354402][ T1263]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   29.354404][ T1263]  ? copy_msghdr_from_user (net/socket.c:2650)
[   29.354406][ T1263]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   29.354409][ T1263]  ? move_addr_to_kernel (net/socket.c:258)
[   29.354411][ T1263]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[   29.354415][ T1263]  ___sys_sendmsg (net/socket.c:2767)
[   29.354418][ T1263]  ? copy_msghdr_from_user (net/socket.c:2619)
[   29.354427][ T1263]  __sys_sendmsg (net/socket.c:2799)
[   29.354430][ T1263]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   29.354434][ T1263]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.354437][ T1263]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   29.354439][ T1263]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   29.354442][ T1263]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   29.354444][ T1263] RIP: 0033:0x7fc4fc13654e
[   29.354447][ T1263] 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
[   29.354450][ T1263] RSP: 002b:00007ffdb0a46e00 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   29.354454][ T1263] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fc4fc13654e
[   29.354456][ T1263] RDX: 0000000000000000 RSI: 00007ffdb0a46eb0 RDI: 0000000000000005
[   29.354457][ T1263] RBP: 00007ffdb0a46e10 R08: 0000000000000000 R09: 0000000000000000
[   29.354458][ T1263] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a918c36


Finger prints:
print_bad_irq_dependency:check_irq_usage:check_prev_add:validate_chain:__lock_acquire
__alloc_skb:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars
vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print
__irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print