======================================
| [   11.313271][  T261] softirqs last disabled at (17402): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   11.313273][  T261] Preemption disabled at:
| [   11.313274][  T261] vprintk_emit (kernel/printk/printk.c:2471)
| [   11.313283][  T261] Tainted: [W]=WARN
[   11.313284][  T261] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.313286][  T261] Call Trace:
[   11.313288][  T261]  <TASK>
[   11.313289][  T261]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   11.313295][  T261]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   11.313297][  T261]  __might_resched.cold (kernel/sched/core.c:9234)
[   11.313301][  T261]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   11.313305][  T261]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   11.313310][  T261]  __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))
[   11.313313][  T261]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.313318][  T261]  ? 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)
[   11.313321][  T261]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.313324][  T261]  put_chars (drivers/char/virtio_console.c:1176)
[   11.313327][  T261]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   11.313331][  T261]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   11.313335][  T261]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   11.313337][  T261]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   11.313339][  T261]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.313341][  T261]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.313345][  T261]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   11.313347][  T261]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   11.313350][  T261]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.313354][  T261]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.313357][  T261]  console_emit_next_record (kernel/printk/printk.c:3183)
[   11.313361][  T261]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   11.313363][  T261]  ? 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))
[   11.313366][  T261]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.313368][  T261]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.313372][  T261]  console_flush_one_record (kernel/printk/printk.c:3268)
[   11.313376][  T261]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   11.313378][  T261]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.313383][  T261]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   11.313385][  T261]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   11.313387][  T261]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.313389][  T261]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   11.313393][  T261]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   11.313395][  T261]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   11.313398][  T261]  vprintk_emit (kernel/printk/printk.c:2479)
[   11.313402][  T261]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   11.313404][  T261]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.313406][  T261]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   11.313410][  T261]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   11.313413][  T261]  _printk (kernel/printk/printk.c:2504)
[   11.313417][  T261]  ? snapshot_read.cold (user.c:?)
[   11.313421][  T261]  ? br_multicast_flood (??:?) bridge
[   11.313433][  T261]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   11.313435][  T261]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   11.313436][  T261]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   11.313440][  T261] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   11.313450][  T261] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   11.313458][  T261] new_nbp (net/bridge/br_if.c:449) bridge
[   11.313467][  T261] br_add_if (net/bridge/br_if.c:592) bridge
[   11.313473][  T261]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   11.313477][  T261]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   11.313481][  T261]  ? __kernel_text_address (kernel/extable.c:79)
[   11.313484][  T261]  do_set_master (net/core/rtnetlink.c:3071)
[   11.313489][  T261]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   11.313492][  T261]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   11.313495][  T261]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   11.313496][  T261]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   11.313499][  T261]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   11.313502][  T261]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   11.313505][  T261]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   11.313507][  T261]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   11.313509][  T261]  ? kasan_save_stack (mm/kasan/common.c:58)
[   11.313512][  T261]  ? kasan_save_stack (mm/kasan/common.c:57)
[   11.313514][  T261]  ? kasan_save_track (mm/kasan/common.c:78)
[   11.313516][  T261]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.313518][  T261]  ? netlink_seq_next (net/netlink/af_netlink.c:2684)
[   11.313521][  T261]  ? ___sys_sendmsg (net/socket.c:2757)
[   11.313525][  T261]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.313527][  T261]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   11.313530][  T261]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.313532][  T261]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.313533][  T261]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.313535][  T261]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.313537][  T261]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   11.313541][  T261]  ? __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)
[   11.313543][  T261]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   11.313545][  T261]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   11.313548][  T261]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   11.313550][  T261]  ? nla_get_range_signed (lib/nlattr.c:270)
[   11.313555][  T261]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   11.313560][  T261]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   11.313565][  T261]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.313569][  T261]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.313574][  T261]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.313575][  T261]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   11.313577][  T261]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.313579][  T261]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.313583][  T261]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.313585][  T261]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   11.313588][  T261]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.313589][  T261]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.313593][  T261]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.313595][  T261]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   11.313598][  T261]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   11.313600][  T261]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.313603][  T261]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   11.313608][  T261]  ? 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))
[   11.313610][  T261]  ? 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))
[   11.313614][  T261]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   11.313618][  T261]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   11.313620][  T261]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.313624][  T261]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   11.313628][  T261]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   11.313632][  T261]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   11.313637][  T261]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   11.313639][  T261]  ? copy_msghdr_from_user (net/socket.c:2650)
[   11.313641][  T261]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   11.313643][  T261]  ? move_addr_to_kernel (net/socket.c:258)
[   11.313650][  T261]  ___sys_sendmsg (net/socket.c:2767)
[   11.313652][  T261]  ? copy_msghdr_from_user (net/socket.c:2619)
[   11.313667][  T261]  __sys_sendmsg (net/socket.c:2799)
[   11.313670][  T261]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   11.313676][  T261]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.313680][  T261]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   11.313682][  T261]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   11.313685][  T261]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.313687][  T261] RIP: 0033:0x7f1d95f0654e
[   11.313691][  T261] 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
[   11.313692][  T261] RSP: 002b:00007ffd8c17fcf0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   11.313695][  T261] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f1d95f0654e
[   11.313696][  T261] RDX: 0000000000000000 RSI: 00007ffd8c17fda0 RDI: 0000000000000005
[   11.313697][  T261] RBP: 00007ffd8c17fd00 R08: 0000000000000000 R09: 0000000000000000
[   11.313698][  T261] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9182c2
[   11.313699][  T261] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffd8c180460
| [   26.481707][    C0] softirqs last disabled at (983649): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   26.481710][    C0] Preemption disabled at:
| [   26.481711][    C0] schedule_preempt_disabled (kernel/sched/core.c:7420)
| [   26.481723][    C0] Tainted: [W]=WARN
[   26.481724][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   26.481726][    C0] Call Trace:
[   26.481729][    C0]  <IRQ>
[   26.481731][    C0]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   26.481737][    C0]  ? schedule_preempt_disabled (kernel/sched/core.c:7420)
[   26.481739][    C0]  __might_resched.cold (kernel/sched/core.c:9234)
[   26.481743][    C0]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   26.481747][    C0]  ? __asan_memcpy (mm/kasan/shadow.c:106 (discriminator 1))
[   26.481751][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.481756][    C0]  __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))
[   26.481760][    C0]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   26.481763][    C0]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   26.481768][    C0]  ? 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)
[   26.481770][    C0]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   26.481774][    C0]  put_chars (drivers/char/virtio_console.c:1176)
[   26.481777][    C0]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   26.481779][    C0]  ? console_prepend_replay (kernel/printk/printk.c:3005)
[   26.481783][    C0]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   26.481788][    C0]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   26.481790][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.481793][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   26.481796][    C0]  console_emit_next_record (kernel/printk/printk.c:3183)
[   26.481800][    C0]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   26.481802][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.481805][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.481807][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   26.481810][    C0]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   26.481812][    C0]  console_flush_one_record (kernel/printk/printk.c:3268)
[   26.481816][    C0]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   26.481820][    C0]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   26.481822][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   26.481825][    C0]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   26.481827][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.481829][    C0]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   26.481831][    C0]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   26.481834][    C0]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   26.481837][    C0]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   26.481840][    C0]  vprintk_emit (kernel/printk/printk.c:2479)
[   26.481843][    C0]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   26.481846][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.481848][    C0]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   26.481851][    C0]  ? x86_64_start_kernel (arch/x86/kernel/head64.c:264)
[   26.481856][    C0]  _printk (kernel/printk/printk.c:2504)
[   26.481860][    C0]  ? snapshot_read.cold (user.c:?)
[   26.481863][    C0]  ? arch_stack_walk (arch/x86/kernel/stacktrace.c:25)
[   26.481868][    C0]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   26.481871][    C0]  ? nbcon_cpu_emergency_enter (./include/linux/instrumented.h:112 ./include/linux/atomic/atomic-instrumented.h:435 kernel/printk/nbcon.c:1723)
[   26.481874][    C0]  print_irq_inversion_bug.part.0 (kernel/locking/lockdep.c:4097 (discriminator 1))
[   26.481877][    C0]  mark_lock_irq (kernel/locking/lockdep.c:4095 kernel/locking/lockdep.c:4174 kernel/locking/lockdep.c:4310)
[   26.481882][    C0]  mark_lock (kernel/locking/lockdep.c:4769)
[   26.481885][    C0]  mark_usage (kernel/locking/lockdep.c:4658)
[   26.481887][    C0]  __lock_acquire (kernel/locking/lockdep.c:5208)
[   26.481890][    C0]  lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   26.481893][    C0]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   26.481910][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.481913][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   26.481915][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   26.481926][    C0]  _raw_spin_lock (./include/linux/spinlock_api_smp.h:190 (discriminator 1) kernel/locking/spinlock.c:173 (discriminator 1))
[   26.481929][    C0]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   26.481940][    C0] br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   26.481957][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   26.481969][    C0]  call_timer_fn (kernel/time/timer.c:1748)
[   26.481973][    C0]  ? detach_if_pending (./include/linux/list.h:1159)
[   26.481976][    C0]  ? debug_object_active_state (lib/debugobjects.c:1122)
[   26.481980][    C0]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   26.481983][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   26.481985][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.481989][    C0]  __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2374)
[   26.481991][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   26.482003][    C0]  ? __bpf_trace_itimer_expire (./include/trace/events/timer.h:407)
[   26.482006][    C0]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   26.482010][    C0]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   26.482014][    C0]  run_timer_softirq (kernel/time/timer.c:2386 kernel/time/timer.c:2395 kernel/time/timer.c:2403)
[   26.482017][    C0]  ? __run_timers (./include/trace/events/timer.h:138 (discriminator 19))
[   26.482019][    C0]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   26.482022][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.482025][    C0]  handle_softirqs (kernel/softirq.c:645)
[   26.482028][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   26.482030][    C0]  ? _local_bh_enable (kernel/softirq.c:428 (discriminator 1))
[   26.482033][    C0]  __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
[   26.482036][    C0]  irq_exit_rcu (kernel/softirq.c:784)
[   26.482038][    C0]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1062 (discriminator 37) arch/x86/kernel/apic/apic.c:1062 (discriminator 37))
[   26.482042][    C0]  </IRQ>
[   26.482043][    C0]  <TASK>
[   26.482044][    C0]  ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4427 (discriminator 2))
[   26.482046][    C0]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:674)
[   26.482049][    C0] RIP: 0010:pv_native_safe_halt (./arch/x86/include/asm/irqflags.h:48 arch/x86/kernel/paravirt.c:63)
[   26.482053][    C0] Code: 48 8b 3d 94 d2 f5 01 e8 1f 00 00 00 48 2b 05 58 93 95 00 c3 0f 1f 80 00 00 00 00 f3 0f 1e fa eb 07 0f 00 2d 13 86 11 00 fb f4 <c3> 0f 1f 40 d6 48 83 ec 20 8b 17 49 89 f8 83 e2 fe 41 89 d2 0f 01
All code
========
   0:	48 8b 3d 94 d2 f5 01 	mov    0x1f5d294(%rip),%rdi        # 0x1f5d29b
   7:	e8 1f 00 00 00       	call   0x2b
   c:	48 2b 05 58 93 95 00 	sub    0x959358(%rip),%rax        # 0x95936b
  13:	c3                   	ret
  14:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  1b:	f3 0f 1e fa          	endbr64
  1f:	eb 07                	jmp    0x28
  21:	0f 00 2d 13 86 11 00 	verw   0x118613(%rip)        # 0x11863b
  28:	fb                   	sti
  29:	f4                   	hlt
  2a:*	c3                   	ret		<-- trapping instruction
  2b:	0f 1f 40 d6          	nopl   -0x2a(%rax)
  2f:	48 83 ec 20          	sub    $0x20,%rsp
  33:	8b 17                	mov    (%rdi),%edx
  35:	49 89 f8             	mov    %rdi,%r8
  38:	83 e2 fe             	and    $0xfffffffe,%edx
  3b:	41 89 d2             	mov    %edx,%r10d
  3e:	0f                   	.byte 0xf
  3f:	01                   	.byte 0x1

Code starting with the faulting instruction
===========================================
   0:	c3                   	ret
   1:	0f 1f 40 d6          	nopl   -0x2a(%rax)
   5:	48 83 ec 20          	sub    $0x20,%rsp
   9:	8b 17                	mov    (%rdi),%edx
   b:	49 89 f8             	mov    %rdi,%r8
   e:	83 e2 fe             	and    $0xfffffffe,%edx
  11:	41 89 d2             	mov    %edx,%r10d
  14:	0f                   	.byte 0xf
  15:	01                   	.byte 0x1
[   26.482055][    C0] RSP: 0018:ffffffffa2607cf8 EFLAGS: 00000296
[   26.482059][    C0] RAX: 00000000000f025f RBX: ffffffffa261c600 RCX: ffffffff9f6f0307
[   26.482061][    C0] RDX: ffffffffa261c600 RSI: ffffffffa2438af6 RDI: ffffffffa1e8d8e0
[   26.482063][    C0] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[   26.482064][    C0] R10: 0000000000000000 R11: 0000000000000001 R12: 1ffffffff44c0fa2
[   26.482065][    C0] R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000014770
[   26.482068][    C0]  ? cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   26.482072][    C0]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   26.482075][    C0]  default_idle (./arch/x86/include/asm/paravirt.h:62 arch/x86/kernel/process.c:768)
[   26.482077][    C0]  default_idle_call (kernel/sched/idle.c:122)
[   26.482080][    C0]  cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   26.482082][    C0]  ? arch_cpu_idle_exit+0x40/0x40
[   26.482085][    C0]  ? mark_tsc_async_resets (arch/x86/kernel/tsc_sync.c:49)
[   26.482088][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.482091][    C0]  do_idle (kernel/sched/idle.c:355)
[   26.482093][    C0]  cpu_startup_entry (kernel/sched/idle.c:454)
[   26.482095][    C0]  rest_init (init/main.c:727)
[   26.482098][    C0]  ? __cpuidle_text_end (??:?)
[   26.482102][    C0]  ? rest_init (init/main.c:727)
[   26.482105][    C0]  ? acpi_hw_set_mode (drivers/acpi/acpica/hwacpi.c:72 (discriminator 1))
[   26.482110][    C0]  ? cpus_read_unlock (./include/linux/percpu-rwsem.h:125 (discriminator 1) kernel/cpu.c:502 (discriminator 1))
[   26.482113][    C0]  ? acpi_enable (drivers/acpi/acpica/evxfevnt.c:47)
[   26.482116][    C0]  start_kernel (init/main.c:1185)
[   26.482119][    C0]  x86_64_start_reservations (arch/x86/kernel/head64.c:310)
[   26.482122][    C0]  x86_64_start_kernel (arch/x86/kernel/head64.c:291)
[   26.482125][    C0]  common_startup_64 (arch/x86/kernel/head_64.S:418)
| [   26.581425][    C0]
| [   26.581541][    C0]
| [   26.581541][    C0] stack backtrace:
| [   26.581817][    C0] Tainted: [W]=WARN
[   26.581819][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   26.581820][    C0] Call Trace:
[   26.581822][    C0]  <IRQ>
[   26.581824][    C0]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   26.581829][    C0]  print_irq_inversion_bug.part.0.cold (kernel/locking/lockdep.c:4141)
[   26.581833][    C0]  mark_lock_irq (kernel/locking/lockdep.c:4095 kernel/locking/lockdep.c:4174 kernel/locking/lockdep.c:4310)
[   26.581838][    C0]  mark_lock (kernel/locking/lockdep.c:4769)
[   26.581841][    C0]  mark_usage (kernel/locking/lockdep.c:4658)
[   26.581843][    C0]  __lock_acquire (kernel/locking/lockdep.c:5208)
[   26.581847][    C0]  lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   26.581849][    C0]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   26.581864][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.581868][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   26.581871][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   26.581882][    C0]  _raw_spin_lock (./include/linux/spinlock_api_smp.h:190 (discriminator 1) kernel/locking/spinlock.c:173 (discriminator 1))
[   26.581885][    C0]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   26.581896][    C0] br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   26.581907][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   26.581918][    C0]  call_timer_fn (kernel/time/timer.c:1748)
[   26.581921][    C0]  ? detach_if_pending (./include/linux/list.h:1159)
[   26.581924][    C0]  ? debug_object_active_state (lib/debugobjects.c:1122)
[   26.581929][    C0]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   26.581932][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   26.581935][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.581939][    C0]  __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2374)
[   26.581941][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   26.581958][    C0]  ? __bpf_trace_itimer_expire (./include/trace/events/timer.h:407)
[   26.581961][    C0]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   26.581965][    C0]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   26.581969][    C0]  run_timer_softirq (kernel/time/timer.c:2386 kernel/time/timer.c:2395 kernel/time/timer.c:2403)
[   26.581972][    C0]  ? __run_timers (./include/trace/events/timer.h:138 (discriminator 19))
[   26.581974][    C0]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   26.581977][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.581980][    C0]  handle_softirqs (kernel/softirq.c:645)
[   26.581983][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   26.581985][    C0]  ? _local_bh_enable (kernel/softirq.c:428 (discriminator 1))
[   26.581989][    C0]  __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
[   26.581991][    C0]  irq_exit_rcu (kernel/softirq.c:784)
[   26.581993][    C0]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1062 (discriminator 37) arch/x86/kernel/apic/apic.c:1062 (discriminator 37))
[   26.581996][    C0]  </IRQ>
[   26.581997][    C0]  <TASK>
[   26.581998][    C0]  ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4427 (discriminator 2))
[   26.582000][    C0]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:674)
[   26.582003][    C0] RIP: 0010:pv_native_safe_halt (./arch/x86/include/asm/irqflags.h:48 arch/x86/kernel/paravirt.c:63)
[   26.582006][    C0] Code: 48 8b 3d 94 d2 f5 01 e8 1f 00 00 00 48 2b 05 58 93 95 00 c3 0f 1f 80 00 00 00 00 f3 0f 1e fa eb 07 0f 00 2d 13 86 11 00 fb f4 <c3> 0f 1f 40 d6 48 83 ec 20 8b 17 49 89 f8 83 e2 fe 41 89 d2 0f 01
All code
========
   0:	48 8b 3d 94 d2 f5 01 	mov    0x1f5d294(%rip),%rdi        # 0x1f5d29b
   7:	e8 1f 00 00 00       	call   0x2b
   c:	48 2b 05 58 93 95 00 	sub    0x959358(%rip),%rax        # 0x95936b
  13:	c3                   	ret
  14:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  1b:	f3 0f 1e fa          	endbr64
  1f:	eb 07                	jmp    0x28
  21:	0f 00 2d 13 86 11 00 	verw   0x118613(%rip)        # 0x11863b
  28:	fb                   	sti
  29:	f4                   	hlt
  2a:*	c3                   	ret		<-- trapping instruction
  2b:	0f 1f 40 d6          	nopl   -0x2a(%rax)
  2f:	48 83 ec 20          	sub    $0x20,%rsp
  33:	8b 17                	mov    (%rdi),%edx
  35:	49 89 f8             	mov    %rdi,%r8
  38:	83 e2 fe             	and    $0xfffffffe,%edx
  3b:	41 89 d2             	mov    %edx,%r10d
  3e:	0f                   	.byte 0xf
  3f:	01                   	.byte 0x1

Code starting with the faulting instruction
===========================================
   0:	c3                   	ret
   1:	0f 1f 40 d6          	nopl   -0x2a(%rax)
   5:	48 83 ec 20          	sub    $0x20,%rsp
   9:	8b 17                	mov    (%rdi),%edx
   b:	49 89 f8             	mov    %rdi,%r8
   e:	83 e2 fe             	and    $0xfffffffe,%edx
  11:	41 89 d2             	mov    %edx,%r10d
  14:	0f                   	.byte 0xf
  15:	01                   	.byte 0x1
[   26.582008][    C0] RSP: 0018:ffffffffa2607cf8 EFLAGS: 00000296
[   26.582012][    C0] RAX: 00000000000f025f RBX: ffffffffa261c600 RCX: ffffffff9f6f0307
[   26.582013][    C0] RDX: ffffffffa261c600 RSI: ffffffffa2438af6 RDI: ffffffffa1e8d8e0
[   26.582015][    C0] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[   26.582016][    C0] R10: 0000000000000000 R11: 0000000000000001 R12: 1ffffffff44c0fa2
[   26.582018][    C0] R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000014770
[   26.582020][    C0]  ? cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   26.582024][    C0]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   26.582026][    C0]  default_idle (./arch/x86/include/asm/paravirt.h:62 arch/x86/kernel/process.c:768)
[   26.582028][    C0]  default_idle_call (kernel/sched/idle.c:122)
[   26.582031][    C0]  cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   26.582033][    C0]  ? arch_cpu_idle_exit+0x40/0x40
[   26.582036][    C0]  ? mark_tsc_async_resets (arch/x86/kernel/tsc_sync.c:49)
[   26.582039][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.582042][    C0]  do_idle (kernel/sched/idle.c:355)
[   26.582044][    C0]  cpu_startup_entry (kernel/sched/idle.c:454)
[   26.582046][    C0]  rest_init (init/main.c:727)
[   26.582049][    C0]  ? __cpuidle_text_end (??:?)
[   26.582053][    C0]  ? rest_init (init/main.c:727)
[   26.582056][    C0]  ? acpi_hw_set_mode (drivers/acpi/acpica/hwacpi.c:72 (discriminator 1))
[   26.582061][    C0]  ? cpus_read_unlock (./include/linux/percpu-rwsem.h:125 (discriminator 1) kernel/cpu.c:502 (discriminator 1))
[   26.582064][    C0]  ? acpi_enable (drivers/acpi/acpica/evxfevnt.c:47)
[   26.582068][    C0]  start_kernel (init/main.c:1185)
[   26.582070][    C0]  x86_64_start_reservations (arch/x86/kernel/head64.c:310)
[   26.582073][    C0]  x86_64_start_kernel (arch/x86/kernel/head64.c:291)
[   26.582076][    C0]  common_startup_64 (arch/x86/kernel/head_64.S:418)
| [   29.889951][  T734] softirqs last disabled at (0): 0x0
| [   29.889953][  T734] Preemption disabled at:
| [   29.889953][  T734] 0x0
| [   29.889968][  T734] Tainted: [W]=WARN
[   29.889969][  T734] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   29.889970][  T734] Call Trace:
[   29.889972][  T734]  <TASK>
[   29.889973][  T734]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   29.889978][  T734]  __might_resched.cold (kernel/sched/core.c:9234)
[   29.889982][  T734]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   29.889986][  T734]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.889990][  T734]  __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))
[   29.889993][  T734]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   29.889996][  T734]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   29.890000][  T734]  ? 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)
[   29.890001][  T734]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   29.890003][  T734]  put_chars (drivers/char/virtio_console.c:1176)
[   29.890005][  T734]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   29.890007][  T734]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   29.890010][  T734]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   29.890013][  T734]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   29.890016][  T734]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   29.890017][  T734]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.890019][  T734]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   29.890021][  T734]  console_emit_next_record (kernel/printk/printk.c:3183)
[   29.890024][  T734]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   29.890025][  T734]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.890027][  T734]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.890029][  T734]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.890030][  T734]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   29.890032][  T734]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   29.890034][  T734]  console_flush_one_record (kernel/printk/printk.c:3268)
[   29.890036][  T734]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   29.890039][  T734]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   29.890041][  T734]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   29.890042][  T734]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   29.890044][  T734]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.890045][  T734]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   29.890047][  T734]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   29.890048][  T734]  ? __rcu_read_lock (kernel/rcu/tree_plugin.h:391 (discriminator 6) kernel/rcu/tree_plugin.h:414 (discriminator 6))
[   29.890050][  T734]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   29.890052][  T734]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   29.890054][  T734]  vprintk_emit (kernel/printk/printk.c:2479)
[   29.890056][  T734]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   29.890058][  T734]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.890060][  T734]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   29.890062][  T734]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:78)
[   29.890064][  T734]  _printk (kernel/printk/printk.c:2504)
[   29.890067][  T734]  ? snapshot_read.cold (user.c:?)
[   29.890069][  T734]  ? ipv6_mc_down (net/ipv6/mcast.c:1157 net/ipv6/mcast.c:2820)
[   29.890074][  T734] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   29.890087][  T734] br_stp_disable_port (net/bridge/br_stp_if.c:106) bridge
[   29.890095][  T734] br_device_event (net/bridge/br.c:111) bridge
[   29.890103][  T734]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   29.890106][  T734]  ? _sub_I_65535_1+0x4d0/0x4d0 stp
[   29.890108][  T734]  ? addrconf_notify (net/ipv6/addrconf.c:3812)
[   29.890112][  T734]  notifier_call_chain (kernel/notifier.c:85)
[   29.890115][  T734]  __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855)
[   29.890118][  T734]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   29.890120][  T734]  ? netif_change_name (net/core/dev.c:1517)
[   29.890122][  T734]  ? netif_set_allmulti (./include/net/netdev_lock.h:30 (discriminator 1))
[   29.890124][  T734]  ? __kernel_text_address (kernel/extable.c:79)
[   29.890126][  T734]  ? write_profile (profile.c:?)
[   29.890128][  T734]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   29.890131][  T734]  netif_change_flags (net/core/dev.c:9882)
[   29.890133][  T734]  do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1))
[   29.890136][  T734]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   29.890137][  T734]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   29.890138][  T734]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.890140][  T734]  ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[   29.890144][  T734]  ? kasan_save_stack (mm/kasan/common.c:58)
[   29.890146][  T734]  ? kasan_save_stack (mm/kasan/common.c:57)
[   29.890148][  T734]  ? kasan_save_track (mm/kasan/common.c:78)
[   29.890149][  T734]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   29.890151][  T734]  ? __kmalloc_cache_noprof (./include/linux/kasan.h:263 mm/slub.c:5563)
[   29.890152][  T734]  ? rtnl_newlink (./include/linux/slab.h:991 (discriminator 1) net/core/rtnetlink.c:4113 (discriminator 1))
[   29.890153][  T734]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   29.890155][  T734]  ? netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   29.890157][  T734]  ? netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   29.890158][  T734]  ? netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   29.890159][  T734]  ? ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   29.890162][  T734]  ? ___sys_sendmsg (net/socket.c:2767)
[   29.890163][  T734]  ? __sys_sendmsg (net/socket.c:2799)
[   29.890165][  T734]  ? do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   29.890167][  T734]  ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   29.890169][  T734]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.890171][  T734]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   29.890172][  T734]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.890174][  T734]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.890176][  T734]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   29.890179][  T734]  ? __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)
[   29.890180][  T734]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   29.890181][  T734]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   29.890183][  T734]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   29.890185][  T734]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   29.890187][  T734]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   29.890189][  T734]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.890191][  T734]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   29.890192][  T734]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   29.890193][  T734]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.890195][  T734]  ? is_bpf_text_address (./include/linux/rcupdate.h:850 kernel/bpf/core.c:749)
[   29.890198][  T734]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   29.890200][  T734]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   29.890202][  T734]  ? __kernel_text_address (kernel/extable.c:79)
[   29.890203][  T734]  ? write_profile (profile.c:?)
[   29.890204][  T734]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   29.890205][  T734]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.890207][  T734]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.890209][  T734]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   29.890213][  T734]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   29.890214][  T734]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.890216][  T734]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   29.890217][  T734]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   29.890219][  T734]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   29.890220][  T734]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[   29.890221][  T734]  ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[   29.890224][  T734]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   29.890225][  T734]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   29.890227][  T734]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   29.890228][  T734]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   29.890229][  T734]  ? __netlink_lookup (./include/linux/rcupdate.h:850 ./include/linux/rhashtable.h:709 net/netlink/af_netlink.c:499)
[   29.890232][  T734]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.890233][  T734]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   29.890235][  T734]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   29.890237][  T734]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   29.890239][  T734]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.890240][  T734]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.890242][  T734]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   29.890244][  T734]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   29.890246][  T734]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   29.890248][  T734]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.890249][  T734]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   29.890251][  T734]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   29.890253][  T734]  ? copy_msghdr_from_user (net/socket.c:2650)
[   29.890254][  T734]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   29.890256][  T734]  ? move_addr_to_kernel (net/socket.c:258)
[   29.890257][  T734]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[   29.890260][  T734]  ___sys_sendmsg (net/socket.c:2767)
[   29.890262][  T734]  ? copy_msghdr_from_user (net/socket.c:2619)
[   29.890266][  T734]  __sys_sendmsg (net/socket.c:2799)
[   29.890268][  T734]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   29.890271][  T734]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.890273][  T734]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   29.890274][  T734]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   29.890276][  T734]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   29.890278][  T734] RIP: 0033:0x7f21dcde254e
[   29.890280][  T734] 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
[   29.890281][  T734] RSP: 002b:00007fff80a80680 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   29.890285][  T734] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f21dcde254e
[   29.890287][  T734] RDX: 0000000000000000 RSI: 00007fff80a80730 RDI: 0000000000000005
[   29.890287][  T734] RBP: 00007fff80a80690 R08: 0000000000000000 R09: 0000000000000000
[   29.890288][  T734] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9182d5


Finger prints:
__alloc_skb:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars
mark_lock_irq:mark_lock:mark_usage:__lock_acquire:_raw_spin_lock
__irq_exit_rcu:schedule_preempt_disabled:dump_stack_lvl:__kmalloc_noprof:put_chars
__kmalloc_noprof:put_chars:hvc_console_print:console_emit_next_record:console_flush_one_record