======================================
| [   10.559233][  T245] softirqs last disabled at (17829): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   10.559235][  T245] Preemption disabled at:
| [   10.559236][  T245] vprintk_emit (kernel/printk/printk.c:2471)
| [   10.559245][  T245] Tainted: [W]=WARN
[   10.559246][  T245] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.559248][  T245] Call Trace:
[   10.559250][  T245]  <TASK>
[   10.559251][  T245]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   10.559257][  T245]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   10.559259][  T245]  __might_resched.cold (kernel/sched/core.c:9234)
[   10.559264][  T245]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   10.559268][  T245]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   10.559273][  T245]  __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))
[   10.559275][  T245]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.559281][  T245]  ? 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)
[   10.559284][  T245]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.559287][  T245]  put_chars (drivers/char/virtio_console.c:1176)
[   10.559290][  T245]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   10.559291][  T245]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   10.559296][  T245]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   10.559298][  T245]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   10.559302][  T245]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   10.559305][  T245]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.559310][  T245]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   10.559312][  T245]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.559317][  T245]  console_emit_next_record (kernel/printk/printk.c:3183)
[   10.559321][  T245]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   10.559323][  T245]  ? 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))
[   10.559326][  T245]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.559328][  T245]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.559332][  T245]  console_flush_one_record (kernel/printk/printk.c:3268)
[   10.559336][  T245]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   10.559338][  T245]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.559343][  T245]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   10.559345][  T245]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   10.559347][  T245]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.559349][  T245]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   10.559353][  T245]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   10.559354][  T245]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   10.559358][  T245]  vprintk_emit (kernel/printk/printk.c:2479)
[   10.559362][  T245]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   10.559367][  T245]  ? vlan_netlink_fini (./include/linux/etherdevice.h:306 net/8021q/vlan.c:316 net/8021q/vlan.c:416) 8021q
[   10.559371][  T245]  _printk (kernel/printk/printk.c:2504)
[   10.559374][  T245]  ? snapshot_read.cold (user.c:?)
[   10.559380][  T245]  ? 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)
[   10.559383][  T245] 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
[   10.559387][  T245]  do_one_initcall (init/main.c:1357)
[   10.559389][  T245]  ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10)
[   10.559394][  T245]  ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1))
[   10.559396][  T245]  ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178)
[   10.559401][  T245]  do_init_module (kernel/module/main.c:3117)
[   10.559405][  T245]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   10.559409][  T245]  ? free_module (./include/trace/events/module.h:50 (discriminator 19))
[   10.559412][  T245]  ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792)
[   10.559416][  T245]  load_module (kernel/module/main.c:3593)
[   10.559423][  T245]  ? layout_and_allocate.isra.0 (kernel/module/main.c:3016)
[   10.559427][  T245]  ? __ia32_sys_fsconfig (??:?)
[   10.559430][  T245]  ? ovl_real_file (fs/overlayfs/file.c:195)
[   10.559434][  T245]  ? backing_file_read_iter (fs/backing-file.c:211)
[   10.559437][  T245]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   10.559441][  T245]  init_module_from_file (kernel/module/main.c:3790)
[   10.559444][  T245]  ? __do_sys_init_module (kernel/module/main.c:3664)
[   10.559451][  T245]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   10.559455][  T245]  ? 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)
[   10.559458][  T245]  idempotent_init_module (kernel/module/main.c:3802)
[   10.559461][  T245]  ? init_module_from_file (kernel/module/main.c:3791)
[   10.559467][  T245]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.559470][  T245]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   10.559476][  T245]  __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812)
[   10.559478][  T245]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   10.559481][  T245]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   10.559483][  T245]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   10.559486][  T245]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.559488][  T245] RIP: 0033:0x7fda9079237d
[   10.559492][  T245] 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
[   10.559493][  T245] RSP: 002b:00007ffdbbea1cd8 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[   10.559496][  T245] RAX: ffffffffffffffda RBX: 0000561bba706810 RCX: 00007fda9079237d
[   10.559498][  T245] RDX: 0000000000000000 RSI: 0000561b961a1ffd RDI: 0000000000000000
[   10.559499][  T245] RBP: 00007ffdbbea1d70 R08: 0000000000000000 R09: 0000000000000000
[   10.559500][  T245] R10: 0000000000000000 R11: 0000000000000246 R12: 0000561b961a1ffd
[   10.559500][  T245] R13: 0000561bba706960 R14: 0000000000040000 R15: 0000000000000000
| [   11.724626][  T315] softirqs last disabled at (17739): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   11.724628][  T315] Preemption disabled at:
| [   11.724629][  T315] vprintk_emit (kernel/printk/printk.c:2471)
| [   11.724638][  T315] Tainted: [W]=WARN
[   11.724639][  T315] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.724641][  T315] Call Trace:
[   11.724643][  T315]  <TASK>
[   11.724644][  T315]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   11.724650][  T315]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   11.724652][  T315]  __might_resched.cold (kernel/sched/core.c:9234)
[   11.724657][  T315]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   11.724661][  T315]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   11.724666][  T315]  __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))
[   11.724668][  T315]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.724674][  T315]  ? 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)
[   11.724677][  T315]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.724680][  T315]  put_chars (drivers/char/virtio_console.c:1176)
[   11.724682][  T315]  ? desc_read_finalized_seq (kernel/printk/printk_ringbuffer.c:1934)
[   11.724685][  T315]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   11.724688][  T315]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   11.724691][  T315]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   11.724695][  T315]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   11.724698][  T315]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.724700][  T315]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.724704][  T315]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   11.724706][  T315]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   11.724709][  T315]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.724712][  T315]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.724716][  T315]  console_emit_next_record (kernel/printk/printk.c:3183)
[   11.724720][  T315]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   11.724722][  T315]  ? 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))
[   11.724725][  T315]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.724727][  T315]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.724731][  T315]  console_flush_one_record (kernel/printk/printk.c:3268)
[   11.724735][  T315]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   11.724737][  T315]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.724742][  T315]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   11.724745][  T315]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   11.724747][  T315]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.724749][  T315]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   11.724753][  T315]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   11.724754][  T315]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   11.724758][  T315]  vprintk_emit (kernel/printk/printk.c:2479)
[   11.724761][  T315]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   11.724767][  T315]  ? gact_cleanup_module (net/sched/act_gact.c:192) act_gact
[   11.724770][  T315]  _printk (kernel/printk/printk.c:2504)
[   11.724774][  T315]  ? snapshot_read.cold (user.c:?)
[   11.724780][  T315]  ? 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)
[   11.724783][  T315] gact_init_module (net/sched/act_gact.c:180) act_gact
[   11.724785][  T315]  do_one_initcall (init/main.c:1357)
[   11.724788][  T315]  ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10)
[   11.724793][  T315]  ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1))
[   11.724796][  T315]  ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178)
[   11.724800][  T315]  do_init_module (kernel/module/main.c:3117)
[   11.724804][  T315]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   11.724808][  T315]  ? free_module (./include/trace/events/module.h:50 (discriminator 19))
[   11.724811][  T315]  ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792)
[   11.724815][  T315]  load_module (kernel/module/main.c:3593)
[   11.724823][  T315]  ? layout_and_allocate.isra.0 (kernel/module/main.c:3016)
[   11.724826][  T315]  ? __ia32_sys_fsconfig (??:?)
[   11.724829][  T315]  ? ovl_real_file (fs/overlayfs/file.c:195)
[   11.724833][  T315]  ? backing_file_read_iter (fs/backing-file.c:211)
[   11.724836][  T315]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   11.724841][  T315]  init_module_from_file (kernel/module/main.c:3790)
[   11.724844][  T315]  ? __do_sys_init_module (kernel/module/main.c:3664)
[   11.724852][  T315]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   11.724855][  T315]  ? 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)
[   11.724858][  T315]  idempotent_init_module (kernel/module/main.c:3802)
[   11.724862][  T315]  ? init_module_from_file (kernel/module/main.c:3791)
[   11.724868][  T315]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.724871][  T315]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   11.724876][  T315]  __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812)
[   11.724879][  T315]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   11.724882][  T315]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   11.724884][  T315]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   11.724887][  T315]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.724889][  T315] RIP: 0033:0x7fd0c7bd037d
[   11.724892][  T315] 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
[   11.724894][  T315] RSP: 002b:00007ffddd114288 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[   11.724897][  T315] RAX: ffffffffffffffda RBX: 000055905ee71810 RCX: 00007fd0c7bd037d
[   11.724898][  T315] RDX: 0000000000000000 RSI: 000055903bd50ffd RDI: 0000000000000000
[   11.724899][  T315] RBP: 00007ffddd114320 R08: 0000000000000000 R09: 0000000000000000
[   11.724900][  T315] R10: 0000000000000000 R11: 0000000000000246 R12: 000055903bd50ffd
[   11.724901][  T315] R13: 000055905ee71960 R14: 0000000000040000 R15: 0000000000000000
| [   12.875594][  T400] softirqs last disabled at (21194): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   12.875596][  T400] Preemption disabled at:
| [   12.875597][  T400] vprintk_emit (kernel/printk/printk.c:2471)
| [   12.875607][  T400] Tainted: [W]=WARN
[   12.875608][  T400] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.875610][  T400] Call Trace:
[   12.875611][  T400]  <TASK>
[   12.875613][  T400]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   12.875619][  T400]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   12.875622][  T400]  __might_resched.cold (kernel/sched/core.c:9234)
[   12.875627][  T400]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   12.875631][  T400]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   12.875637][  T400]  __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))
[   12.875639][  T400]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.875645][  T400]  ? 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)
[   12.875648][  T400]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.875652][  T400]  put_chars (drivers/char/virtio_console.c:1176)
[   12.875654][  T400]  ? prb_final_commit (kernel/printk/printk_ringbuffer.c:1842)
[   12.875656][  T400]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   12.875659][  T400]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   12.875663][  T400]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   12.875666][  T400]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   12.875670][  T400]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   12.875673][  T400]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   12.875676][  T400]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.875678][  T400]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.875682][  T400]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   12.875684][  T400]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   12.875688][  T400]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.875691][  T400]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.875695][  T400]  console_emit_next_record (kernel/printk/printk.c:3183)
[   12.875699][  T400]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   12.875701][  T400]  ? 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))
[   12.875704][  T400]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.875707][  T400]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.875712][  T400]  console_flush_one_record (kernel/printk/printk.c:3268)
[   12.875716][  T400]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   12.875718][  T400]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.875724][  T400]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   12.875727][  T400]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   12.875729][  T400]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.875731][  T400]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   12.875735][  T400]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   12.875737][  T400]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   12.875740][  T400]  vprintk_emit (kernel/printk/printk.c:2479)
[   12.875745][  T400]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   12.875747][  T400]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   12.875753][  T400]  _printk (kernel/printk/printk.c:2504)
[   12.875757][  T400]  ? snapshot_read.cold (user.c:?)
[   12.875761][  T400]  ? br_multicast_flood (??:?) bridge
[   12.875774][  T400]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   12.875775][  T400]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   12.875777][  T400]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   12.875781][  T400] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   12.875792][  T400] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   12.875801][  T400] new_nbp (net/bridge/br_if.c:449) bridge
[   12.875810][  T400] br_add_if (net/bridge/br_if.c:592) bridge
[   12.875817][  T400]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   12.875822][  T400]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   12.875825][  T400]  ? __kernel_text_address (kernel/extable.c:79)
[   12.875829][  T400]  do_set_master (net/core/rtnetlink.c:3071)
[   12.875833][  T400]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   12.875837][  T400]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   12.875840][  T400]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   12.875841][  T400]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   12.875843][  T400]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   12.875847][  T400]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   12.875849][  T400]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   12.875851][  T400]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   12.875854][  T400]  ? kasan_save_stack (mm/kasan/common.c:58)
[   12.875857][  T400]  ? kasan_save_stack (mm/kasan/common.c:57)
[   12.875859][  T400]  ? kasan_save_track (mm/kasan/common.c:78)
[   12.875861][  T400]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.875863][  T400]  ? netlink_seq_next (net/netlink/af_netlink.c:2685)
[   12.875866][  T400]  ? ___sys_sendmsg (net/socket.c:2757)
[   12.875871][  T400]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.875873][  T400]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   12.875876][  T400]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.875878][  T400]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.875880][  T400]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.875881][  T400]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.875884][  T400]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   12.875888][  T400]  ? __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)
[   12.875891][  T400]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   12.875893][  T400]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   12.875897][  T400]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   12.875899][  T400]  ? nla_get_range_signed (lib/nlattr.c:270)
[   12.875904][  T400]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   12.875909][  T400]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   12.875914][  T400]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   12.875916][  T400]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.875921][  T400]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.875923][  T400]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.875925][  T400]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   12.875927][  T400]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   12.875931][  T400]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   12.875933][  T400]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   12.875936][  T400]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   12.875938][  T400]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.875942][  T400]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.875944][  T400]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.875948][  T400]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   12.875949][  T400]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   12.875952][  T400]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   12.875959][  T400]  ? 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))
[   12.875960][  T400]  ? 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))
[   12.875964][  T400]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   12.875968][  T400]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   12.875971][  T400]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.875975][  T400]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   12.875979][  T400]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   12.875983][  T400]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   12.875991][  T400]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   12.875993][  T400]  ? copy_msghdr_from_user (net/socket.c:2650)
[   12.875995][  T400]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   12.875997][  T400]  ? move_addr_to_kernel (net/socket.c:258)
[   12.876004][  T400]  ___sys_sendmsg (net/socket.c:2767)
[   12.876007][  T400]  ? copy_msghdr_from_user (net/socket.c:2619)
[   12.876023][  T400]  __sys_sendmsg (net/socket.c:2799)
[   12.876026][  T400]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   12.876033][  T400]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.876036][  T400]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   12.876039][  T400]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   12.876042][  T400]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.876044][  T400] RIP: 0033:0x7fe69d9d454e
[   12.876048][  T400] 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
[   12.876050][  T400] RSP: 002b:00007fffde3bd630 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   12.876053][  T400] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fe69d9d454e
[   12.876054][  T400] RDX: 0000000000000000 RSI: 00007fffde3bd6e0 RDI: 0000000000000005
[   12.876055][  T400] RBP: 00007fffde3bd640 R08: 0000000000000000 R09: 0000000000000000
[   12.876056][  T400] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a910082
[   12.876057][  T400] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fffde3bdda0
| [   28.550140][    C0] softirqs last disabled at (799861): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   28.550143][    C0] Preemption disabled at:
| [   28.550144][    C0] schedule_preempt_disabled (kernel/sched/core.c:7420)
| [   28.550157][    C0] Tainted: [W]=WARN
[   28.550159][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   28.550161][    C0] Call Trace:
[   28.550163][    C0]  <IRQ>
[   28.550165][    C0]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   28.550172][    C0]  ? schedule_preempt_disabled (kernel/sched/core.c:7420)
[   28.550174][    C0]  __might_resched.cold (kernel/sched/core.c:9234)
[   28.550179][    C0]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   28.550183][    C0]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   28.550187][    C0]  ? __asan_memcpy (mm/kasan/shadow.c:106 (discriminator 1))
[   28.550191][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.550196][    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))
[   28.550200][    C0]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   28.550202][    C0]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   28.550207][    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)
[   28.550210][    C0]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   28.550213][    C0]  put_chars (drivers/char/virtio_console.c:1176)
[   28.550216][    C0]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   28.550219][    C0]  ? console_prepend_replay (kernel/printk/printk.c:3005)
[   28.550224][    C0]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   28.550229][    C0]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   28.550232][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.550234][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   28.550238][    C0]  console_emit_next_record (kernel/printk/printk.c:3183)
[   28.550247][    C0]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   28.550250][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.550253][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.550256][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   28.550259][    C0]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   28.550262][    C0]  console_flush_one_record (kernel/printk/printk.c:3268)
[   28.550265][    C0]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   28.550270][    C0]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   28.550272][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   28.550275][    C0]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   28.550277][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.550280][    C0]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   28.550282][    C0]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   28.550285][    C0]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   28.550288][    C0]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   28.550291][    C0]  vprintk_emit (kernel/printk/printk.c:2479)
[   28.550295][    C0]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   28.550298][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.550300][    C0]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   28.550303][    C0]  ? x86_64_start_kernel (arch/x86/kernel/head64.c:264)
[   28.550309][    C0]  _printk (kernel/printk/printk.c:2504)
[   28.550313][    C0]  ? snapshot_read.cold (user.c:?)
[   28.550316][    C0]  ? arch_stack_walk (arch/x86/kernel/stacktrace.c:25)
[   28.550322][    C0]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   28.550325][    C0]  ? nbcon_cpu_emergency_enter (./include/linux/instrumented.h:112 ./include/linux/atomic/atomic-instrumented.h:435 kernel/printk/nbcon.c:1723)
[   28.550328][    C0]  print_irq_inversion_bug.part.0 (kernel/locking/lockdep.c:4097 (discriminator 1))
[   28.550332][    C0]  mark_lock_irq (kernel/locking/lockdep.c:4095 kernel/locking/lockdep.c:4174 kernel/locking/lockdep.c:4310)
[   28.550337][    C0]  mark_lock (kernel/locking/lockdep.c:4769)
[   28.550340][    C0]  mark_usage (kernel/locking/lockdep.c:4658)
[   28.550343][    C0]  __lock_acquire (kernel/locking/lockdep.c:5208)
[   28.550347][    C0]  lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   28.550350][    C0]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   28.550368][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.550371][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   28.550373][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   28.550386][    C0]  _raw_spin_lock (./include/linux/spinlock_api_smp.h:190 (discriminator 1) kernel/locking/spinlock.c:173 (discriminator 1))
[   28.550389][    C0]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   28.550401][    C0] br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   28.550413][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   28.550425][    C0]  call_timer_fn (kernel/time/timer.c:1748)
[   28.550430][    C0]  ? detach_if_pending (./include/linux/list.h:1159)
[   28.550432][    C0]  ? debug_object_active_state (lib/debugobjects.c:1122)
[   28.550437][    C0]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   28.550440][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   28.550443][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.550447][    C0]  __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2374)
[   28.550450][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   28.550463][    C0]  ? __bpf_trace_itimer_expire (./include/trace/events/timer.h:407)
[   28.550465][    C0]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   28.550470][    C0]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   28.550474][    C0]  run_timer_softirq (kernel/time/timer.c:2386 kernel/time/timer.c:2395 kernel/time/timer.c:2403)
[   28.550477][    C0]  ? __run_timers (./include/trace/events/timer.h:138 (discriminator 19))
[   28.550480][    C0]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   28.550483][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.550486][    C0]  handle_softirqs (kernel/softirq.c:645)
[   28.550490][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   28.550492][    C0]  ? _local_bh_enable (kernel/softirq.c:428 (discriminator 1))
[   28.550496][    C0]  __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
[   28.550498][    C0]  irq_exit_rcu (kernel/softirq.c:784)
[   28.550501][    C0]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1062 (discriminator 37) arch/x86/kernel/apic/apic.c:1062 (discriminator 37))
[   28.550504][    C0]  </IRQ>
[   28.550505][    C0]  <TASK>
[   28.550507][    C0]  ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4427 (discriminator 2))
[   28.550509][    C0]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:674)
[   28.550513][    C0] RIP: 0010:pv_native_safe_halt (./arch/x86/include/asm/irqflags.h:48 arch/x86/kernel/paravirt.c:63)
[   28.550517][    C0] Code: 48 8b 3d 94 e2 f5 01 e8 1f 00 00 00 48 2b 05 58 a3 95 00 c3 0f 1f 80 00 00 00 00 f3 0f 1e fa eb 07 0f 00 2d 13 96 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 e2 f5 01 	mov    0x1f5e294(%rip),%rdi        # 0x1f5e29b
   7:	e8 1f 00 00 00       	call   0x2b
   c:	48 2b 05 58 a3 95 00 	sub    0x95a358(%rip),%rax        # 0x95a36b
  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 96 11 00 	verw   0x119613(%rip)        # 0x11963b
  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
[   28.550519][    C0] RSP: 0018:ffffffffad207cf8 EFLAGS: 00000296
[   28.550523][    C0] RAX: 00000000000c3473 RBX: ffffffffad21c600 RCX: ffffffffaa2f0307
[   28.550525][    C0] RDX: ffffffffad21c600 RSI: ffffffffad038b01 RDI: ffffffffaca8d8e0
[   28.550527][    C0] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[   28.550529][    C0] R10: 0000000000000000 R11: 0000000000000001 R12: 1ffffffff5a40fa2
[   28.550530][    C0] R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000014770
[   28.550533][    C0]  ? cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   28.550538][    C0]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   28.550540][    C0]  default_idle (./arch/x86/include/asm/paravirt.h:62 arch/x86/kernel/process.c:768)
[   28.550543][    C0]  default_idle_call (kernel/sched/idle.c:122)
[   28.550545][    C0]  cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   28.550548][    C0]  ? arch_cpu_idle_exit+0x40/0x40
[   28.550550][    C0]  ? mark_tsc_async_resets (arch/x86/kernel/tsc_sync.c:49)
[   28.550554][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.550557][    C0]  do_idle (kernel/sched/idle.c:355)
[   28.550560][    C0]  cpu_startup_entry (kernel/sched/idle.c:454)
[   28.550562][    C0]  rest_init (init/main.c:727)
[   28.550565][    C0]  ? __cpuidle_text_end (??:?)
[   28.550569][    C0]  ? rest_init (init/main.c:727)
[   28.550572][    C0]  ? acpi_hw_set_mode (drivers/acpi/acpica/hwacpi.c:72 (discriminator 1))
[   28.550577][    C0]  ? cpus_read_unlock (./include/linux/percpu-rwsem.h:125 (discriminator 1) kernel/cpu.c:502 (discriminator 1))
[   28.550581][    C0]  ? acpi_enable (drivers/acpi/acpica/evxfevnt.c:47)
[   28.550585][    C0]  start_kernel (init/main.c:1185)
[   28.550588][    C0]  x86_64_start_reservations (arch/x86/kernel/head64.c:310)
[   28.550592][    C0]  x86_64_start_kernel (arch/x86/kernel/head64.c:291)
[   28.550595][    C0]  common_startup_64 (arch/x86/kernel/head_64.S:418)
| [   28.669525][    C0]
| [   28.669607][    C0]
| [   28.669607][    C0] stack backtrace:
| [   28.669919][    C0] Tainted: [W]=WARN
[   28.669920][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   28.669922][    C0] Call Trace:
[   28.669924][    C0]  <IRQ>
[   28.669925][    C0]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   28.669930][    C0]  print_irq_inversion_bug.part.0.cold (kernel/locking/lockdep.c:4141)
[   28.669933][    C0]  mark_lock_irq (kernel/locking/lockdep.c:4095 kernel/locking/lockdep.c:4174 kernel/locking/lockdep.c:4310)
[   28.669936][    C0]  mark_lock (kernel/locking/lockdep.c:4769)
[   28.669938][    C0]  mark_usage (kernel/locking/lockdep.c:4658)
[   28.669939][    C0]  __lock_acquire (kernel/locking/lockdep.c:5208)
[   28.669942][    C0]  lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   28.669944][    C0]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   28.669951][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.669955][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   28.669957][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   28.669963][    C0]  _raw_spin_lock (./include/linux/spinlock_api_smp.h:190 (discriminator 1) kernel/locking/spinlock.c:173 (discriminator 1))
[   28.669965][    C0]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   28.669971][    C0] br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   28.669978][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   28.669984][    C0]  call_timer_fn (kernel/time/timer.c:1748)
[   28.669987][    C0]  ? detach_if_pending (./include/linux/list.h:1159)
[   28.669989][    C0]  ? debug_object_active_state (lib/debugobjects.c:1122)
[   28.669992][    C0]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   28.669994][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   28.669996][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.669998][    C0]  __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2374)
[   28.670000][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   28.670007][    C0]  ? __bpf_trace_itimer_expire (./include/trace/events/timer.h:407)
[   28.670009][    C0]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   28.670012][    C0]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   28.670014][    C0]  run_timer_softirq (kernel/time/timer.c:2386 kernel/time/timer.c:2395 kernel/time/timer.c:2403)
[   28.670016][    C0]  ? __run_timers (./include/trace/events/timer.h:138 (discriminator 19))
[   28.670018][    C0]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   28.670021][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.670022][    C0]  handle_softirqs (kernel/softirq.c:645)
[   28.670025][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   28.670026][    C0]  ? _local_bh_enable (kernel/softirq.c:428 (discriminator 1))
[   28.670028][    C0]  __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
[   28.670030][    C0]  irq_exit_rcu (kernel/softirq.c:784)
[   28.670031][    C0]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1062 (discriminator 37) arch/x86/kernel/apic/apic.c:1062 (discriminator 37))
[   28.670034][    C0]  </IRQ>
[   28.670034][    C0]  <TASK>
[   28.670035][    C0]  ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4427 (discriminator 2))
[   28.670036][    C0]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:674)
[   28.670038][    C0] RIP: 0010:pv_native_safe_halt (./arch/x86/include/asm/irqflags.h:48 arch/x86/kernel/paravirt.c:63)
[   28.670041][    C0] Code: 48 8b 3d 94 e2 f5 01 e8 1f 00 00 00 48 2b 05 58 a3 95 00 c3 0f 1f 80 00 00 00 00 f3 0f 1e fa eb 07 0f 00 2d 13 96 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 e2 f5 01 	mov    0x1f5e294(%rip),%rdi        # 0x1f5e29b
   7:	e8 1f 00 00 00       	call   0x2b
   c:	48 2b 05 58 a3 95 00 	sub    0x95a358(%rip),%rax        # 0x95a36b
  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 96 11 00 	verw   0x119613(%rip)        # 0x11963b
  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
[   28.670043][    C0] RSP: 0018:ffffffffad207cf8 EFLAGS: 00000296
[   28.670045][    C0] RAX: 00000000000c3473 RBX: ffffffffad21c600 RCX: ffffffffaa2f0307
[   28.670047][    C0] RDX: ffffffffad21c600 RSI: ffffffffad038b01 RDI: ffffffffaca8d8e0
[   28.670047][    C0] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[   28.670049][    C0] R10: 0000000000000000 R11: 0000000000000001 R12: 1ffffffff5a40fa2
[   28.670049][    C0] R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000014770
[   28.670051][    C0]  ? cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   28.670053][    C0]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   28.670055][    C0]  default_idle (./arch/x86/include/asm/paravirt.h:62 arch/x86/kernel/process.c:768)
[   28.670057][    C0]  default_idle_call (kernel/sched/idle.c:122)
[   28.670058][    C0]  cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   28.670060][    C0]  ? arch_cpu_idle_exit+0x40/0x40
[   28.670062][    C0]  ? mark_tsc_async_resets (arch/x86/kernel/tsc_sync.c:49)
[   28.670064][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.670067][    C0]  do_idle (kernel/sched/idle.c:355)
[   28.670068][    C0]  cpu_startup_entry (kernel/sched/idle.c:454)
[   28.670070][    C0]  rest_init (init/main.c:727)
[   28.670073][    C0]  ? __cpuidle_text_end (??:?)
[   28.670077][    C0]  ? rest_init (init/main.c:727)
[   28.670080][    C0]  ? acpi_hw_set_mode (drivers/acpi/acpica/hwacpi.c:72 (discriminator 1))
[   28.670084][    C0]  ? cpus_read_unlock (./include/linux/percpu-rwsem.h:125 (discriminator 1) kernel/cpu.c:502 (discriminator 1))
[   28.670087][    C0]  ? acpi_enable (drivers/acpi/acpica/evxfevnt.c:47)
[   28.670089][    C0]  start_kernel (init/main.c:1185)
[   28.670091][    C0]  x86_64_start_reservations (arch/x86/kernel/head64.c:310)
[   28.670093][    C0]  x86_64_start_kernel (arch/x86/kernel/head64.c:291)
[   28.670095][    C0]  common_startup_64 (arch/x86/kernel/head_64.S:418)
| [   87.060877][  T787] softirqs last disabled at (0): 0x0
| [   87.060879][  T787] Preemption disabled at:
| [   87.060879][  T787] 0x0
| [   87.060888][  T787] Tainted: [W]=WARN
[   87.060889][  T787] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   87.060891][  T787] Call Trace:
[   87.060893][  T787]  <TASK>
[   87.060894][  T787]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   87.060900][  T787]  __might_resched.cold (kernel/sched/core.c:9234)
[   87.060903][  T787]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   87.060907][  T787]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   87.060911][  T787]  __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))
[   87.060914][  T787]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   87.060917][  T787]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   87.060921][  T787]  ? 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)
[   87.060923][  T787]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   87.060925][  T787]  put_chars (drivers/char/virtio_console.c:1176)
[   87.060927][  T787]  ? desc_read_finalized_seq (kernel/printk/printk_ringbuffer.c:1934)
[   87.060929][  T787]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   87.060931][  T787]  ? console_prepend_replay (kernel/printk/printk.c:3005)
[   87.060934][  T787]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   87.060937][  T787]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   87.060938][  T787]  ? do_raw_spin_lock (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:1301 ./include/asm-generic/qspinlock.h:112 kernel/locking/spinlock_debug.c:116)
[   87.060940][  T787]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   87.060941][  T787]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   87.060943][  T787]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   87.060945][  T787]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   87.060947][  T787]  console_emit_next_record (kernel/printk/printk.c:3183)
[   87.060950][  T787]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   87.060952][  T787]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   87.060954][  T787]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   87.060956][  T787]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   87.060959][  T787]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   87.060961][  T787]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   87.060964][  T787]  console_flush_one_record (kernel/printk/printk.c:3268)
[   87.060967][  T787]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   87.060971][  T787]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   87.060974][  T787]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   87.060976][  T787]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   87.060979][  T787]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   87.060981][  T787]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   87.060983][  T787]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   87.060988][  T787]  ? __rcu_read_lock (kernel/rcu/tree_plugin.h:391 (discriminator 6) kernel/rcu/tree_plugin.h:414 (discriminator 6))
[   87.060991][  T787]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   87.060994][  T787]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   87.060997][  T787]  vprintk_emit (kernel/printk/printk.c:2479)
[   87.061002][  T787]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   87.061005][  T787]  ? debug_object_assert_init (lib/debugobjects.c:1072 (discriminator 3))
[   87.061010][  T787]  ? debug_object_activate (lib/debugobjects.c:884)
[   87.061013][  T787]  _printk (kernel/printk/printk.c:2504)
[   87.061017][  T787]  ? snapshot_read.cold (user.c:?)
[   87.061021][  T787]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   87.061023][  T787]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   87.061026][  T787]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   87.061030][  T787] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   87.061049][  T787] br_stp_disable_port (net/bridge/br_stp_if.c:106) bridge
[   87.061062][  T787] br_stp_disable_bridge (net/bridge/br_stp_if.c:76) bridge
[   87.061074][  T787] br_dev_stop (net/bridge/br_device.c:193) bridge
[   87.061087][  T787]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   87.061092][  T787]  __dev_close_many (net/core/dev.c:1798)
[   87.061096][  T787]  ? netif_open (net/core/dev.c:1755)
[   87.061099][  T787]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   87.061102][  T787]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   87.061105][  T787]  __dev_change_flags (net/core/dev.c:1811 net/core/dev.c:9810)
[   87.061108][  T787]  ? netif_set_allmulti (./include/net/netdev_lock.h:30 (discriminator 1))
[   87.061111][  T787]  ? __kernel_text_address (kernel/extable.c:79)
[   87.061114][  T787]  ? write_profile (profile.c:?)
[   87.061118][  T787]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   87.061122][  T787]  netif_change_flags (net/core/dev.c:9877)
[   87.061125][  T787]  do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1))
[   87.061129][  T787]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   87.061131][  T787]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   87.061133][  T787]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   87.061136][  T787]  ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[   87.061141][  T787]  ? kasan_save_stack (mm/kasan/common.c:58)
[   87.061144][  T787]  ? kasan_save_stack (mm/kasan/common.c:57)
[   87.061147][  T787]  ? kasan_save_track (mm/kasan/common.c:78)
[   87.061149][  T787]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   87.061151][  T787]  ? __kmalloc_cache_noprof (./include/linux/kasan.h:263 mm/slub.c:5563)
[   87.061154][  T787]  ? rtnl_newlink (./include/linux/slab.h:991 (discriminator 1) net/core/rtnetlink.c:4113 (discriminator 1))
[   87.061156][  T787]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   87.061158][  T787]  ? netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   87.061161][  T787]  ? netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   87.061163][  T787]  ? netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   87.061166][  T787]  ? ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   87.061169][  T787]  ? ___sys_sendmsg (net/socket.c:2767)
[   87.061171][  T787]  ? __sys_sendmsg (net/socket.c:2799)
[   87.061174][  T787]  ? do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   87.061177][  T787]  ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   87.061181][  T787]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   87.061184][  T787]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   87.061186][  T787]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   87.061188][  T787]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   87.061191][  T787]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   87.061195][  T787]  ? __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)
[   87.061198][  T787]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   87.061200][  T787]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   87.061203][  T787]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   87.061207][  T787]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   87.061211][  T787]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   87.061214][  T787]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   87.061217][  T787]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   87.061219][  T787]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   87.061221][  T787]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   87.061225][  T787]  ? is_bpf_text_address (./include/linux/rcupdate.h:850 kernel/bpf/core.c:749)
[   87.061229][  T787]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   87.061232][  T787]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   87.061234][  T787]  ? __kernel_text_address (kernel/extable.c:79)
[   87.061236][  T787]  ? write_profile (profile.c:?)
[   87.061238][  T787]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   87.061240][  T787]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   87.061243][  T787]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   87.061245][  T787]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   87.061250][  T787]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   87.061252][  T787]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   87.061255][  T787]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   87.061257][  T787]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   87.061260][  T787]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   87.061262][  T787]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[   87.061264][  T787]  ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[   87.061268][  T787]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   87.061271][  T787]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   87.061273][  T787]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   87.061275][  T787]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   87.061277][  T787]  ? __netlink_lookup (./include/linux/rcupdate.h:850 ./include/linux/rhashtable.h:709 net/netlink/af_netlink.c:499)
[   87.061281][  T787]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   87.061283][  T787]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   87.061286][  T787]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   87.061289][  T787]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   87.061292][  T787]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   87.061294][  T787]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   87.061297][  T787]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   87.061299][  T787]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   87.061302][  T787]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   87.061305][  T787]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   87.061307][  T787]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   87.061310][  T787]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   87.061313][  T787]  ? copy_msghdr_from_user (net/socket.c:2650)
[   87.061315][  T787]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   87.061317][  T787]  ? move_addr_to_kernel (net/socket.c:258)
[   87.061318][  T787]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[   87.061321][  T787]  ___sys_sendmsg (net/socket.c:2767)
[   87.061323][  T787]  ? copy_msghdr_from_user (net/socket.c:2619)
[   87.061328][  T787]  __sys_sendmsg (net/socket.c:2799)
[   87.061330][  T787]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   87.061333][  T787]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   87.061335][  T787]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   87.061336][  T787]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   87.061338][  T787]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   87.061340][  T787] RIP: 0033:0x7fcefb80454e
[   87.061342][  T787] 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
[   87.061344][  T787] RSP: 002b:00007ffd48c0ca40 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   87.061349][  T787] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fcefb80454e
[   87.061350][  T787] RDX: 0000000000000000 RSI: 00007ffd48c0caf0 RDI: 0000000000000005
[   87.061352][  T787] RBP: 00007ffd48c0ca50 R08: 0000000000000000 R09: 0000000000000000
[   87.061353][  T787] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9100cc


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