======================================
| [   10.930646][  T242] softirqs last disabled at (25993): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   10.930648][  T242] Preemption disabled at:
| [   10.930649][  T242] vprintk_emit (kernel/printk/printk.c:2471)
| [   10.930659][  T242] Tainted: [W]=WARN
[   10.930660][  T242] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.930662][  T242] Call Trace:
[   10.930663][  T242]  <TASK>
[   10.930665][  T242]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   10.930670][  T242]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   10.930673][  T242]  __might_resched.cold (kernel/sched/core.c:9234)
[   10.930677][  T242]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   10.930681][  T242]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   10.930686][  T242]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   10.930688][  T242]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.930694][  T242]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   10.930697][  T242]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.930700][  T242]  put_chars (drivers/char/virtio_console.c:1176)
[   10.930703][  T242]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   10.930705][  T242]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   10.930709][  T242]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   10.930712][  T242]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   10.930716][  T242]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   10.930719][  T242]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.930724][  T242]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   10.930727][  T242]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.930732][  T242]  console_emit_next_record (kernel/printk/printk.c:3183)
[   10.930736][  T242]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   10.930738][  T242]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   10.930741][  T242]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.930743][  T242]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.930747][  T242]  console_flush_one_record (kernel/printk/printk.c:3268)
[   10.930751][  T242]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   10.930753][  T242]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.930758][  T242]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   10.930761][  T242]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   10.930763][  T242]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.930765][  T242]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   10.930769][  T242]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   10.930771][  T242]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   10.930776][  T242]  vprintk_emit (kernel/printk/printk.c:2479)
[   10.930782][  T242]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   10.930788][  T242]  ? vlan_netlink_fini (./include/linux/etherdevice.h:306 net/8021q/vlan.c:316 net/8021q/vlan.c:416) 8021q
[   10.930792][  T242]  _printk (kernel/printk/printk.c:2504)
[   10.930796][  T242]  ? snapshot_read.cold (user.c:?)
[   10.930802][  T242]  ? do_one_initcall (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 ./include/linux/cpumask.h:650 ./include/linux/cpumask.h:1232 ./include/trace/events/initcall.h:27 init/main.c:1356)
[   10.930805][  T242] vlan_proto_init (./include/linux/rcupdate.h:309 (discriminator 2) ./include/linux/rcupdate.h:849 (discriminator 2) ./include/net/netns/generic.h:45 (discriminator 2)) 8021q
[   10.930808][  T242]  do_one_initcall (init/main.c:1357)
[   10.930811][  T242]  ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10)
[   10.930815][  T242]  ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1))
[   10.930818][  T242]  ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178)
[   10.930823][  T242]  do_init_module (kernel/module/main.c:3117)
[   10.930826][  T242]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   10.930831][  T242]  ? free_module (./include/trace/events/module.h:50 (discriminator 19))
[   10.930834][  T242]  ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792)
[   10.930838][  T242]  load_module (kernel/module/main.c:3593)
[   10.930845][  T242]  ? layout_and_allocate.isra.0 (kernel/module/main.c:3016)
[   10.930849][  T242]  ? __ia32_sys_fsconfig (??:?)
[   10.930852][  T242]  ? ovl_real_file (fs/overlayfs/file.c:195)
[   10.930856][  T242]  ? backing_file_read_iter (fs/backing-file.c:211)
[   10.930859][  T242]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   10.930862][  T242]  init_module_from_file (kernel/module/main.c:3790)
[   10.930866][  T242]  ? __do_sys_init_module (kernel/module/main.c:3664)
[   10.930874][  T242]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   10.930877][  T242]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   10.930880][  T242]  idempotent_init_module (kernel/module/main.c:3802)
[   10.930884][  T242]  ? init_module_from_file (kernel/module/main.c:3791)
[   10.930890][  T242]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.930892][  T242]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   10.930898][  T242]  __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812)
[   10.930900][  T242]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   10.930903][  T242]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   10.930905][  T242]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   10.930908][  T242]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.930910][  T242] RIP: 0033:0x7f45279fe37d
[   10.930913][  T242] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 4b aa 0f 00 f7 d8 64 89 01 48
All code
========
   0:	ff c3                	inc    %ebx
   2:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
   9:	00 00 00 
   c:	90                   	nop
   d:	f3 0f 1e fa          	endbr64
  11:	48 89 f8             	mov    %rdi,%rax
  14:	48 89 f7             	mov    %rsi,%rdi
  17:	48 89 d6             	mov    %rdx,%rsi
  1a:	48 89 ca             	mov    %rcx,%rdx
  1d:	4d 89 c2             	mov    %r8,%r10
  20:	4d 89 c8             	mov    %r9,%r8
  23:	4c 8b 4c 24 08       	mov    0x8(%rsp),%r9
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d 4b aa 0f 00 	mov    0xfaa4b(%rip),%rcx        # 0xfaa85
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d 4b aa 0f 00 	mov    0xfaa4b(%rip),%rcx        # 0xfaa5b
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   10.930915][  T242] RSP: 002b:00007ffe92b4e488 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[   10.930918][  T242] RAX: ffffffffffffffda RBX: 000055c91997b810 RCX: 00007f45279fe37d
[   10.930919][  T242] RDX: 0000000000000000 RSI: 000055c8ebdf7ffd RDI: 0000000000000000
[   10.930920][  T242] RBP: 00007ffe92b4e520 R08: 0000000000000000 R09: 0000000000000000
[   10.930921][  T242] R10: 0000000000000000 R11: 0000000000000246 R12: 000055c8ebdf7ffd
[   10.930922][  T242] R13: 000055c91997b960 R14: 0000000000040000 R15: 0000000000000000
| [   12.890162][  T372] softirqs last disabled at (19122): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   12.890165][  T372] Preemption disabled at:
| [   12.890166][  T372] vprintk_emit (kernel/printk/printk.c:2471)
| [   12.890176][  T372] Tainted: [W]=WARN
[   12.890177][  T372] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.890179][  T372] Call Trace:
[   12.890180][  T372]  <TASK>
[   12.890182][  T372]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   12.890188][  T372]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   12.890190][  T372]  __might_resched.cold (kernel/sched/core.c:9234)
[   12.890195][  T372]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   12.890199][  T372]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   12.890205][  T372]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   12.890207][  T372]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.890213][  T372]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   12.890215][  T372]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.890219][  T372]  put_chars (drivers/char/virtio_console.c:1176)
[   12.890221][  T372]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   12.890226][  T372]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   12.890230][  T372]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   12.890233][  T372]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   12.890235][  T372]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.890236][  T372]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.890240][  T372]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   12.890242][  T372]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   12.890246][  T372]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.890249][  T372]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.890254][  T372]  console_emit_next_record (kernel/printk/printk.c:3183)
[   12.890257][  T372]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   12.890259][  T372]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   12.890263][  T372]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.890265][  T372]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.890269][  T372]  console_flush_one_record (kernel/printk/printk.c:3268)
[   12.890273][  T372]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   12.890275][  T372]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.890281][  T372]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   12.890284][  T372]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   12.890286][  T372]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.890288][  T372]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   12.890292][  T372]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   12.890294][  T372]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   12.890297][  T372]  vprintk_emit (kernel/printk/printk.c:2479)
[   12.890301][  T372]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   12.890304][  T372]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   12.890305][  T372]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   12.890312][  T372]  _printk (kernel/printk/printk.c:2504)
[   12.890316][  T372]  ? snapshot_read.cold (user.c:?)
[   12.890320][  T372]  ? br_multicast_flood (??:?) bridge
[   12.890333][  T372]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   12.890334][  T372]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   12.890336][  T372]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   12.890340][  T372] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   12.890351][  T372] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   12.890359][  T372] new_nbp (net/bridge/br_if.c:449) bridge
[   12.890368][  T372] br_add_if (net/bridge/br_if.c:592) bridge
[   12.890376][  T372]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   12.890387][  T372]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   12.890390][  T372]  ? __kernel_text_address (kernel/extable.c:79)
[   12.890394][  T372]  do_set_master (net/core/rtnetlink.c:3071)
[   12.890399][  T372]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   12.890402][  T372]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   12.890405][  T372]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   12.890406][  T372]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   12.890409][  T372]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   12.890413][  T372]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   12.890415][  T372]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   12.890417][  T372]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   12.890420][  T372]  ? kasan_save_stack (mm/kasan/common.c:58)
[   12.890422][  T372]  ? kasan_save_stack (mm/kasan/common.c:57)
[   12.890424][  T372]  ? kasan_save_track (mm/kasan/common.c:78)
[   12.890427][  T372]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.890429][  T372]  ? netlink_seq_next (net/netlink/af_netlink.c:2684)
[   12.890432][  T372]  ? ___sys_sendmsg (net/socket.c:2757)
[   12.890436][  T372]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.890438][  T372]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   12.890441][  T372]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.890443][  T372]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.890445][  T372]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.890447][  T372]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.890449][  T372]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   12.890453][  T372]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   12.890455][  T372]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   12.890457][  T372]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   12.890461][  T372]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   12.890462][  T372]  ? nla_get_range_signed (lib/nlattr.c:270)
[   12.890467][  T372]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   12.890473][  T372]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   12.890478][  T372]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   12.890480][  T372]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.890485][  T372]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.890487][  T372]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.890489][  T372]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   12.890490][  T372]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   12.890494][  T372]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   12.890496][  T372]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   12.890499][  T372]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   12.890501][  T372]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.890505][  T372]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.890507][  T372]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.890511][  T372]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   12.890512][  T372]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   12.890515][  T372]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   12.890522][  T372]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   12.890523][  T372]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   12.890527][  T372]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   12.890531][  T372]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   12.890534][  T372]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.890538][  T372]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   12.890542][  T372]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   12.890546][  T372]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   12.890551][  T372]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   12.890553][  T372]  ? copy_msghdr_from_user (net/socket.c:2650)
[   12.890556][  T372]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   12.890557][  T372]  ? move_addr_to_kernel (net/socket.c:258)
[   12.890565][  T372]  ___sys_sendmsg (net/socket.c:2767)
[   12.890568][  T372]  ? copy_msghdr_from_user (net/socket.c:2619)
[   12.890584][  T372]  __sys_sendmsg (net/socket.c:2799)
[   12.890587][  T372]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   12.890593][  T372]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.890597][  T372]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   12.890599][  T372]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   12.890602][  T372]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.890604][  T372] RIP: 0033:0x7f1a5790654e
[   12.890608][  T372] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   12.890610][  T372] RSP: 002b:00007ffd72ff55d0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   12.890613][  T372] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f1a5790654e
[   12.890614][  T372] RDX: 0000000000000000 RSI: 00007ffd72ff5680 RDI: 0000000000000005
[   12.890615][  T372] RBP: 00007ffd72ff55e0 R08: 0000000000000000 R09: 0000000000000000
[   12.890620][  T372] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a917aa4
[   12.890621][  T372] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffd72ff5d40
| [   14.003021][  T466] softirqs last disabled at (14886): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   14.003023][  T466] Preemption disabled at:
| [   14.003024][  T466] vprintk_emit (kernel/printk/printk.c:2471)
| [   14.003034][  T466] Tainted: [W]=WARN
[   14.003035][  T466] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   14.003037][  T466] Call Trace:
[   14.003038][  T466]  <TASK>
[   14.003040][  T466]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   14.003046][  T466]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   14.003048][  T466]  __might_resched.cold (kernel/sched/core.c:9234)
[   14.003052][  T466]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   14.003056][  T466]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   14.003062][  T466]  __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))
[   14.003064][  T466]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   14.003070][  T466]  ? 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)
[   14.003072][  T466]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   14.003075][  T466]  put_chars (drivers/char/virtio_console.c:1176)
[   14.003077][  T466]  ? prb_final_commit (kernel/printk/printk_ringbuffer.c:1842)
[   14.003079][  T466]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   14.003083][  T466]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   14.003087][  T466]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   14.003089][  T466]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   14.003093][  T466]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   14.003096][  T466]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   14.003098][  T466]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.003099][  T466]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.003103][  T466]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   14.003105][  T466]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   14.003109][  T466]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.003111][  T466]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   14.003115][  T466]  console_emit_next_record (kernel/printk/printk.c:3183)
[   14.003119][  T466]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   14.003121][  T466]  ? 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))
[   14.003124][  T466]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.003127][  T466]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   14.003131][  T466]  console_flush_one_record (kernel/printk/printk.c:3268)
[   14.003135][  T466]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   14.003137][  T466]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.003142][  T466]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   14.003145][  T466]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   14.003147][  T466]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.003149][  T466]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   14.003153][  T466]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   14.003155][  T466]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   14.003158][  T466]  vprintk_emit (kernel/printk/printk.c:2479)
[   14.003162][  T466]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   14.003165][  T466]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   14.003170][  T466]  _printk (kernel/printk/printk.c:2504)
[   14.003174][  T466]  ? snapshot_read.cold (user.c:?)
[   14.003178][  T466]  ? br_multicast_flood (??:?) bridge
[   14.003191][  T466]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   14.003192][  T466]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   14.003193][  T466]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   14.003198][  T466] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   14.003208][  T466] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   14.003217][  T466] new_nbp (net/bridge/br_if.c:449) bridge
[   14.003226][  T466] br_add_if (net/bridge/br_if.c:592) bridge
[   14.003233][  T466]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   14.003237][  T466]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   14.003240][  T466]  ? __kernel_text_address (kernel/extable.c:79)
[   14.003244][  T466]  do_set_master (net/core/rtnetlink.c:3071)
[   14.003248][  T466]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   14.003251][  T466]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   14.003254][  T466]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   14.003256][  T466]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   14.003257][  T466]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   14.003261][  T466]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   14.003263][  T466]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   14.003265][  T466]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   14.003268][  T466]  ? kasan_save_stack (mm/kasan/common.c:58)
[   14.003271][  T466]  ? kasan_save_stack (mm/kasan/common.c:57)
[   14.003272][  T466]  ? kasan_save_track (mm/kasan/common.c:78)
[   14.003275][  T466]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.003277][  T466]  ? netlink_seq_next (net/netlink/af_netlink.c:2684)
[   14.003280][  T466]  ? ___sys_sendmsg (net/socket.c:2757)
[   14.003285][  T466]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   14.003287][  T466]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   14.003289][  T466]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.003292][  T466]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   14.003293][  T466]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.003295][  T466]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.003297][  T466]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   14.003301][  T466]  ? __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)
[   14.003304][  T466]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   14.003306][  T466]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   14.003310][  T466]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   14.003311][  T466]  ? nla_get_range_signed (lib/nlattr.c:270)
[   14.003316][  T466]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   14.003321][  T466]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   14.003327][  T466]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   14.003329][  T466]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.003333][  T466]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   14.003335][  T466]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   14.003337][  T466]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   14.003339][  T466]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   14.003343][  T466]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   14.003345][  T466]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   14.003348][  T466]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   14.003349][  T466]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.003353][  T466]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   14.003355][  T466]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   14.003359][  T466]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   14.003361][  T466]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   14.003363][  T466]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   14.003370][  T466]  ? 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))
[   14.003371][  T466]  ? 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))
[   14.003375][  T466]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   14.003379][  T466]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   14.003382][  T466]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.003392][  T466]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   14.003395][  T466]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   14.003399][  T466]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   14.003405][  T466]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   14.003407][  T466]  ? copy_msghdr_from_user (net/socket.c:2650)
[   14.003409][  T466]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   14.003411][  T466]  ? move_addr_to_kernel (net/socket.c:258)
[   14.003419][  T466]  ___sys_sendmsg (net/socket.c:2767)
[   14.003421][  T466]  ? copy_msghdr_from_user (net/socket.c:2619)
[   14.003438][  T466]  __sys_sendmsg (net/socket.c:2799)
[   14.003441][  T466]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   14.003447][  T466]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.003451][  T466]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   14.003453][  T466]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   14.003456][  T466]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   14.003459][  T466] RIP: 0033:0x7f74eb31554e
[   14.003462][  T466] 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
[   14.003464][  T466] RSP: 002b:00007ffedf782850 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   14.003467][  T466] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f74eb31554e
[   14.003468][  T466] RDX: 0000000000000000 RSI: 00007ffedf782900 RDI: 0000000000000005
[   14.003469][  T466] RBP: 00007ffedf782860 R08: 0000000000000000 R09: 0000000000000000
[   14.003470][  T466] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a917aa5
[   14.003471][  T466] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffedf782fc0
| [   28.546124][    C2] softirqs last disabled at (861309): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   28.546126][    C2] Preemption disabled at:
| [   28.546127][    C2] 0x0
| [   28.546141][    C2] Tainted: [W]=WARN
[   28.546143][    C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   28.546145][    C2] Call Trace:
[   28.546147][    C2]  <IRQ>
[   28.546149][    C2]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   28.546155][    C2]  __might_resched.cold (kernel/sched/core.c:9234)
[   28.546160][    C2]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   28.546164][    C2]  ? __asan_memcpy (mm/kasan/shadow.c:106 (discriminator 1))
[   28.546168][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.546173][    C2]  __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))
[   28.546177][    C2]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   28.546181][    C2]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   28.546185][    C2]  ? 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)
[   28.546188][    C2]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   28.546191][    C2]  put_chars (drivers/char/virtio_console.c:1176)
[   28.546194][    C2]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   28.546196][    C2]  ? console_prepend_replay (kernel/printk/printk.c:3005)
[   28.546201][    C2]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   28.546206][    C2]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   28.546208][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.546211][    C2]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   28.546214][    C2]  console_emit_next_record (kernel/printk/printk.c:3183)
[   28.546218][    C2]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   28.546221][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.546223][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.546226][    C2]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   28.546229][    C2]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   28.546232][    C2]  console_flush_one_record (kernel/printk/printk.c:3268)
[   28.546236][    C2]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   28.546240][    C2]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   28.546242][    C2]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   28.546245][    C2]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   28.546247][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.546250][    C2]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   28.546252][    C2]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   28.546255][    C2]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   28.546258][    C2]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   28.546261][    C2]  vprintk_emit (kernel/printk/printk.c:2479)
[   28.546265][    C2]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   28.546268][    C2]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   28.546285][    C2]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   28.546287][    C2]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   28.546299][    C2]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   28.546311][    C2]  ? is_module_text_address (./include/linux/rcupdate.h:882 ./include/linux/rcupdate.h:1216 kernel/module/main.c:3934)
[   28.546316][    C2]  _printk (kernel/printk/printk.c:2504)
[   28.546320][    C2]  ? snapshot_read.cold (user.c:?)
[   28.546323][    C2]  ? arch_stack_walk (arch/x86/kernel/stacktrace.c:25)
[   28.546328][    C2]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   28.546331][    C2]  ? nbcon_cpu_emergency_enter (./include/linux/instrumented.h:112 ./include/linux/atomic/atomic-instrumented.h:435 kernel/printk/nbcon.c:1723)
[   28.546334][    C2]  print_irq_inversion_bug.part.0 (kernel/locking/lockdep.c:4097 (discriminator 1))
[   28.546338][    C2]  mark_lock_irq (kernel/locking/lockdep.c:4095 kernel/locking/lockdep.c:4174 kernel/locking/lockdep.c:4310)
[   28.546342][    C2]  mark_lock (kernel/locking/lockdep.c:4769)
[   28.546345][    C2]  mark_usage (kernel/locking/lockdep.c:4658)
[   28.546348][    C2]  __lock_acquire (kernel/locking/lockdep.c:5208)
[   28.546352][    C2]  lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   28.546355][    C2]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   28.546367][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.546370][    C2]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   28.546373][    C2]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   28.546385][    C2]  _raw_spin_lock (./include/linux/spinlock_api_smp.h:190 (discriminator 1) kernel/locking/spinlock.c:173 (discriminator 1))
[   28.546387][    C2]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   28.546399][    C2] br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   28.546412][    C2]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   28.546424][    C2]  call_timer_fn (kernel/time/timer.c:1748)
[   28.546428][    C2]  ? detach_if_pending (./include/linux/list.h:1159)
[   28.546431][    C2]  ? debug_object_active_state (lib/debugobjects.c:1122)
[   28.546435][    C2]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   28.546438][    C2]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   28.546441][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.546445][    C2]  __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2374)
[   28.546448][    C2]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   28.546461][    C2]  ? __bpf_trace_itimer_expire (./include/trace/events/timer.h:407)
[   28.546463][    C2]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   28.546468][    C2]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   28.546472][    C2]  run_timer_softirq (kernel/time/timer.c:2386 kernel/time/timer.c:2395 kernel/time/timer.c:2403)
[   28.546482][    C2]  ? __run_timers (./include/trace/events/timer.h:138 (discriminator 19))
[   28.546485][    C2]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   28.546488][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.546491][    C2]  handle_softirqs (kernel/softirq.c:645)
[   28.546494][    C2]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   28.546497][    C2]  ? _local_bh_enable (kernel/softirq.c:428 (discriminator 1))
[   28.546500][    C2]  __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
[   28.546503][    C2]  irq_exit_rcu (kernel/softirq.c:784)
[   28.546505][    C2]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1062 (discriminator 37) arch/x86/kernel/apic/apic.c:1062 (discriminator 37))
[   28.546509][    C2]  </IRQ>
[   28.546510][    C2]  <TASK>
[   28.546511][    C2]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   28.546514][    C2]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:674)
[   28.546517][    C2] RIP: 0010:pv_native_safe_halt (./arch/x86/include/asm/irqflags.h:48 arch/x86/kernel/paravirt.c:63)
[   28.546521][    C2] 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
[   28.546524][    C2] RSP: 0018:ffa0000000157e00 EFLAGS: 00000282
[   28.546528][    C2] RAX: 00000000000d247b RBX: ff11000001bec6c0 RCX: ffffffffb10f0307
[   28.546530][    C2] RDX: ff11000001bec6c0 RSI: ffffffffb3e38af6 RDI: ffffffffb388d8e0
[   28.546531][    C2] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[   28.546532][    C2] R10: 0000000000000002 R11: 0000000000000001 R12: 1ff400000002afc3
[   28.546534][    C2] R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000000
[   28.546536][    C2]  ? cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   28.546541][    C2]  default_idle (./arch/x86/include/asm/paravirt.h:62 arch/x86/kernel/process.c:768)
[   28.546544][    C2]  default_idle_call (kernel/sched/idle.c:122)
[   28.546546][    C2]  cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   28.546549][    C2]  ? arch_cpu_idle_exit+0x40/0x40
[   28.546551][    C2]  ? mark_tsc_async_resets (arch/x86/kernel/tsc_sync.c:49)
[   28.546556][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.546559][    C2]  do_idle (kernel/sched/idle.c:355)
[   28.546561][    C2]  cpu_startup_entry (kernel/sched/idle.c:454)
[   28.546564][    C2]  start_secondary (arch/x86/kernel/smpboot.c:312)
[   28.546567][    C2]  ? set_cpu_sibling_map (arch/x86/kernel/smpboot.c:733 (discriminator 4))
[   28.546570][    C2]  common_startup_64 (arch/x86/kernel/head_64.S:418)
| [   28.624371][    C2]
| [   28.624447][    C2]
| [   28.624447][    C2] stack backtrace:
| [   28.624692][    C2] Tainted: [W]=WARN
[   28.624693][    C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   28.624694][    C2] Call Trace:
[   28.624696][    C2]  <IRQ>
[   28.624697][    C2]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   28.624702][    C2]  print_irq_inversion_bug.part.0.cold (kernel/locking/lockdep.c:4141)
[   28.624706][    C2]  mark_lock_irq (kernel/locking/lockdep.c:4095 kernel/locking/lockdep.c:4174 kernel/locking/lockdep.c:4310)
[   28.624709][    C2]  mark_lock (kernel/locking/lockdep.c:4769)
[   28.624710][    C2]  mark_usage (kernel/locking/lockdep.c:4658)
[   28.624712][    C2]  __lock_acquire (kernel/locking/lockdep.c:5208)
[   28.624714][    C2]  lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   28.624716][    C2]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   28.624725][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.624728][    C2]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   28.624730][    C2]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   28.624737][    C2]  _raw_spin_lock (./include/linux/spinlock_api_smp.h:190 (discriminator 1) kernel/locking/spinlock.c:173 (discriminator 1))
[   28.624739][    C2]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   28.624745][    C2] br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   28.624752][    C2]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   28.624758][    C2]  call_timer_fn (kernel/time/timer.c:1748)
[   28.624761][    C2]  ? detach_if_pending (./include/linux/list.h:1159)
[   28.624763][    C2]  ? debug_object_active_state (lib/debugobjects.c:1122)
[   28.624767][    C2]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   28.624768][    C2]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   28.624770][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.624774][    C2]  __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2374)
[   28.624776][    C2]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   28.624789][    C2]  ? __bpf_trace_itimer_expire (./include/trace/events/timer.h:407)
[   28.624792][    C2]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   28.624797][    C2]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   28.624800][    C2]  run_timer_softirq (kernel/time/timer.c:2386 kernel/time/timer.c:2395 kernel/time/timer.c:2403)
[   28.624803][    C2]  ? __run_timers (./include/trace/events/timer.h:138 (discriminator 19))
[   28.624806][    C2]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   28.624809][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.624812][    C2]  handle_softirqs (kernel/softirq.c:645)
[   28.624816][    C2]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   28.624818][    C2]  ? _local_bh_enable (kernel/softirq.c:428 (discriminator 1))
[   28.624822][    C2]  __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
[   28.624824][    C2]  irq_exit_rcu (kernel/softirq.c:784)
[   28.624827][    C2]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1062 (discriminator 37) arch/x86/kernel/apic/apic.c:1062 (discriminator 37))
[   28.624830][    C2]  </IRQ>
[   28.624831][    C2]  <TASK>
[   28.624832][    C2]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   28.624834][    C2]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:674)
[   28.624837][    C2] RIP: 0010:pv_native_safe_halt (./arch/x86/include/asm/irqflags.h:48 arch/x86/kernel/paravirt.c:63)
[   28.624841][    C2] 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
[   28.624844][    C2] RSP: 0018:ffa0000000157e00 EFLAGS: 00000282
[   28.624847][    C2] RAX: 00000000000d247b RBX: ff11000001bec6c0 RCX: ffffffffb10f0307
[   28.624849][    C2] RDX: ff11000001bec6c0 RSI: ffffffffb3e38af6 RDI: ffffffffb388d8e0
[   28.624851][    C2] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[   28.624853][    C2] R10: 0000000000000002 R11: 0000000000000001 R12: 1ff400000002afc3
[   28.624854][    C2] R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000000
[   28.624857][    C2]  ? cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   28.624861][    C2]  default_idle (./arch/x86/include/asm/paravirt.h:62 arch/x86/kernel/process.c:768)
[   28.624863][    C2]  default_idle_call (kernel/sched/idle.c:122)
[   28.624866][    C2]  cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   28.624869][    C2]  ? arch_cpu_idle_exit+0x40/0x40
[   28.624871][    C2]  ? mark_tsc_async_resets (arch/x86/kernel/tsc_sync.c:49)
[   28.624875][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.624878][    C2]  do_idle (kernel/sched/idle.c:355)
[   28.624880][    C2]  cpu_startup_entry (kernel/sched/idle.c:454)
[   28.624883][    C2]  start_secondary (arch/x86/kernel/smpboot.c:312)
[   28.624885][    C2]  ? set_cpu_sibling_map (arch/x86/kernel/smpboot.c:733 (discriminator 4))
[   28.624889][    C2]  common_startup_64 (arch/x86/kernel/head_64.S:418)
| [  391.722004][ T1970] softirqs last disabled at (0): 0x0
| [  391.722006][ T1970] Preemption disabled at:
| [  391.722007][ T1970] 0x0
| [  391.722016][ T1970] Tainted: [W]=WARN
[  391.722017][ T1970] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  391.722018][ T1970] Call Trace:
[  391.722020][ T1970]  <TASK>
[  391.722021][ T1970]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[  391.722027][ T1970]  __might_resched.cold (kernel/sched/core.c:9234)
[  391.722031][ T1970]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[  391.722034][ T1970]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  391.722038][ T1970]  __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))
[  391.722041][ T1970]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[  391.722044][ T1970]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[  391.722048][ T1970]  ? 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)
[  391.722050][ T1970]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[  391.722051][ T1970]  put_chars (drivers/char/virtio_console.c:1176)
[  391.722053][ T1970]  ? __send_to_port (drivers/char/virtio_console.c:654)
[  391.722055][ T1970]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[  391.722058][ T1970]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[  391.722062][ T1970]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[  391.722064][ T1970]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[  391.722065][ T1970]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  391.722067][ T1970]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  391.722069][ T1970]  console_emit_next_record (kernel/printk/printk.c:3183)
[  391.722072][ T1970]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[  391.722074][ T1970]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  391.722075][ T1970]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  391.722077][ T1970]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  391.722079][ T1970]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  391.722081][ T1970]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[  391.722082][ T1970]  console_flush_one_record (kernel/printk/printk.c:3268)
[  391.722085][ T1970]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[  391.722087][ T1970]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[  391.722089][ T1970]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  391.722090][ T1970]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[  391.722092][ T1970]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  391.722094][ T1970]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[  391.722095][ T1970]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[  391.722096][ T1970]  ? __rcu_read_lock (kernel/rcu/tree_plugin.h:391 (discriminator 6) kernel/rcu/tree_plugin.h:414 (discriminator 6))
[  391.722099][ T1970]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[  391.722100][ T1970]  ? vprintk_emit (kernel/printk/printk.c:2478)
[  391.722102][ T1970]  vprintk_emit (kernel/printk/printk.c:2479)
[  391.722105][ T1970]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[  391.722107][ T1970]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  391.722108][ T1970]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[  391.722111][ T1970]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:78)
[  391.722112][ T1970]  _printk (kernel/printk/printk.c:2504)
[  391.722115][ T1970]  ? snapshot_read.cold (user.c:?)
[  391.722118][ T1970]  ? ipv6_mc_down (net/ipv6/mcast.c:1157 net/ipv6/mcast.c:2820)
[  391.722122][ T1970] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[  391.722135][ T1970] br_stp_disable_port (net/bridge/br_stp_if.c:106) bridge
[  391.722143][ T1970] br_device_event (net/bridge/br.c:111) bridge
[  391.722152][ T1970]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[  391.722156][ T1970]  ? _sub_I_65535_1+0x4d0/0x4d0 stp
[  391.722158][ T1970]  ? addrconf_notify (net/ipv6/addrconf.c:3812)
[  391.722161][ T1970]  notifier_call_chain (kernel/notifier.c:85)
[  391.722164][ T1970]  __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855)
[  391.722168][ T1970]  ? netif_change_name (net/core/dev.c:1517)
[  391.722170][ T1970]  ? netif_set_allmulti (./include/net/netdev_lock.h:30 (discriminator 1))
[  391.722172][ T1970]  ? __kernel_text_address (kernel/extable.c:79)
[  391.722174][ T1970]  ? write_profile (profile.c:?)
[  391.722177][ T1970]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[  391.722179][ T1970]  netif_change_flags (net/core/dev.c:9882)
[  391.722182][ T1970]  do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1))
[  391.722184][ T1970]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[  391.722186][ T1970]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[  391.722187][ T1970]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  391.722189][ T1970]  ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[  391.722192][ T1970]  ? kasan_save_stack (mm/kasan/common.c:58)
[  391.722195][ T1970]  ? kasan_save_stack (mm/kasan/common.c:57)
[  391.722197][ T1970]  ? kasan_save_track (mm/kasan/common.c:78)
[  391.722198][ T1970]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[  391.722200][ T1970]  ? __kmalloc_cache_noprof (./include/linux/kasan.h:263 mm/slub.c:5563)
[  391.722201][ T1970]  ? rtnl_newlink (./include/linux/slab.h:991 (discriminator 1) net/core/rtnetlink.c:4113 (discriminator 1))
[  391.722202][ T1970]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[  391.722203][ T1970]  ? netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[  391.722206][ T1970]  ? netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[  391.722207][ T1970]  ? netlink_sendmsg (net/netlink/af_netlink.c:1900)
[  391.722209][ T1970]  ? ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[  391.722211][ T1970]  ? ___sys_sendmsg (net/socket.c:2767)
[  391.722213][ T1970]  ? __sys_sendmsg (net/socket.c:2799)
[  391.722214][ T1970]  ? do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[  391.722216][ T1970]  ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  391.722219][ T1970]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  391.722221][ T1970]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  391.722222][ T1970]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  391.722224][ T1970]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  391.722225][ T1970]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[  391.722228][ T1970]  ? __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)
[  391.722230][ T1970]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[  391.722231][ T1970]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[  391.722233][ T1970]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[  391.722235][ T1970]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[  391.722237][ T1970]  rtnl_newlink (net/core/rtnetlink.c:4215)
[  391.722239][ T1970]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  391.722240][ T1970]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  391.722242][ T1970]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  391.722243][ T1970]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  391.722245][ T1970]  ? is_bpf_text_address (./include/linux/rcupdate.h:850 kernel/bpf/core.c:749)
[  391.722248][ T1970]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[  391.722250][ T1970]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[  391.722251][ T1970]  ? __kernel_text_address (kernel/extable.c:79)
[  391.722253][ T1970]  ? write_profile (profile.c:?)
[  391.722254][ T1970]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[  391.722255][ T1970]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  391.722257][ T1970]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  391.722258][ T1970]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[  391.722262][ T1970]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  391.722263][ T1970]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  391.722265][ T1970]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  391.722266][ T1970]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[  391.722268][ T1970]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[  391.722269][ T1970]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[  391.722271][ T1970]  ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[  391.722273][ T1970]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[  391.722275][ T1970]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[  391.722276][ T1970]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[  391.722277][ T1970]  ? netlink_ack (./include/linux/skbuff.h:2718)
[  391.722279][ T1970]  ? __netlink_lookup (./include/linux/rcupdate.h:850 ./include/linux/rhashtable.h:709 net/netlink/af_netlink.c:499)
[  391.722281][ T1970]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  391.722283][ T1970]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[  391.722285][ T1970]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[  391.722287][ T1970]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[  391.722288][ T1970]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  391.722290][ T1970]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  391.722292][ T1970]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  391.722294][ T1970]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[  391.722296][ T1970]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[  391.722297][ T1970]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  391.722299][ T1970]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[  391.722301][ T1970]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[  391.722303][ T1970]  ? copy_msghdr_from_user (net/socket.c:2650)
[  391.722304][ T1970]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[  391.722306][ T1970]  ? move_addr_to_kernel (net/socket.c:258)
[  391.722307][ T1970]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[  391.722310][ T1970]  ___sys_sendmsg (net/socket.c:2767)
[  391.722312][ T1970]  ? copy_msghdr_from_user (net/socket.c:2619)
[  391.722317][ T1970]  __sys_sendmsg (net/socket.c:2799)
[  391.722318][ T1970]  ? __sys_sendmsg_sock (net/socket.c:2780)
[  391.722321][ T1970]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  391.722323][ T1970]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[  391.722324][ T1970]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[  391.722327][ T1970]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  391.722328][ T1970] RIP: 0033:0x7f66c9f2554e
[  391.722330][ T1970] 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
[  391.722332][ T1970] RSP: 002b:00007ffdc5abf7d0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[  391.722335][ T1970] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f66c9f2554e
[  391.722337][ T1970] RDX: 0000000000000000 RSI: 00007ffdc5abf880 RDI: 0000000000000005
[  391.722338][ T1970] RBP: 00007ffdc5abf7e0 R08: 0000000000000000 R09: 0000000000000000
[  391.722338][ T1970] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a917c1f


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