======================================
| [   10.985590][  T245] softirqs last disabled at (33101): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   10.985592][  T245] Preemption disabled at:
| [   10.985593][  T245] vprintk_emit (kernel/printk/printk.c:2471)
| [   10.985602][  T245] Tainted: [W]=WARN
[   10.985603][  T245] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.985604][  T245] Call Trace:
[   10.985606][  T245]  <TASK>
[   10.985607][  T245]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   10.985619][  T245]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   10.985622][  T245]  __might_resched.cold (kernel/sched/core.c:9234)
[   10.985626][  T245]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   10.985630][  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)
[   10.985635][  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))
[   10.985638][  T245]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.985643][  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)
[   10.985646][  T245]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.985649][  T245]  put_chars (drivers/char/virtio_console.c:1176)
[   10.985652][  T245]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   10.985653][  T245]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   10.985658][  T245]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   10.985660][  T245]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   10.985664][  T245]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   10.985667][  T245]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.985672][  T245]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   10.985674][  T245]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.985679][  T245]  console_emit_next_record (kernel/printk/printk.c:3183)
[   10.985683][  T245]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   10.985685][  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))
[   10.985688][  T245]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.985690][  T245]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.985694][  T245]  console_flush_one_record (kernel/printk/printk.c:3268)
[   10.985698][  T245]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   10.985699][  T245]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.985704][  T245]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   10.985707][  T245]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   10.985709][  T245]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.985711][  T245]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   10.985715][  T245]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   10.985716][  T245]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   10.985719][  T245]  vprintk_emit (kernel/printk/printk.c:2479)
[   10.985724][  T245]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   10.985729][  T245]  ? vlan_netlink_fini (./include/linux/etherdevice.h:306 net/8021q/vlan.c:316 net/8021q/vlan.c:416) 8021q
[   10.985734][  T245]  _printk (kernel/printk/printk.c:2504)
[   10.985737][  T245]  ? snapshot_read.cold (user.c:?)
[   10.985743][  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)
[   10.985746][  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
[   10.985749][  T245]  do_one_initcall (init/main.c:1357)
[   10.985752][  T245]  ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10)
[   10.985756][  T245]  ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1))
[   10.985759][  T245]  ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178)
[   10.985764][  T245]  do_init_module (kernel/module/main.c:3117)
[   10.985768][  T245]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   10.985772][  T245]  ? free_module (./include/trace/events/module.h:50 (discriminator 19))
[   10.985775][  T245]  ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792)
[   10.985779][  T245]  load_module (kernel/module/main.c:3593)
[   10.985786][  T245]  ? layout_and_allocate.isra.0 (kernel/module/main.c:3016)
[   10.985790][  T245]  ? __ia32_sys_fsconfig (??:?)
[   10.985793][  T245]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   10.985796][  T245]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   10.985799][  T245]  init_module_from_file (kernel/module/main.c:3790)
[   10.985803][  T245]  ? __do_sys_init_module (kernel/module/main.c:3664)
[   10.985810][  T245]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   10.985814][  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)
[   10.985817][  T245]  idempotent_init_module (kernel/module/main.c:3802)
[   10.985820][  T245]  ? init_module_from_file (kernel/module/main.c:3791)
[   10.985826][  T245]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.985829][  T245]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   10.985835][  T245]  __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812)
[   10.985837][  T245]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   10.985840][  T245]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   10.985842][  T245]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   10.985844][  T245]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.985847][  T245] RIP: 0033:0x7f9c2d8f937d
[   10.985850][  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
[   10.985852][  T245] RSP: 002b:00007ffd79bb7388 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[   10.985855][  T245] RAX: ffffffffffffffda RBX: 00005585729cc810 RCX: 00007f9c2d8f937d
[   10.985856][  T245] RDX: 0000000000000000 RSI: 0000558566d45ffd RDI: 0000000000000000
[   10.985857][  T245] RBP: 00007ffd79bb7420 R08: 0000000000000000 R09: 0000000000000000
[   10.985858][  T245] R10: 0000000000000000 R11: 0000000000000246 R12: 0000558566d45ffd
[   10.985859][  T245] R13: 00005585729cc960 R14: 0000000000040000 R15: 0000000000000000
| [   13.138396][  T315] softirqs last disabled at (25181): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   13.138398][  T315] Preemption disabled at:
| [   13.138399][  T315] vprintk_emit (kernel/printk/printk.c:2471)
| [   13.138408][  T315] Tainted: [W]=WARN
[   13.138409][  T315] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.138410][  T315] Call Trace:
[   13.138412][  T315]  <TASK>
[   13.138413][  T315]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   13.138419][  T315]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   13.138421][  T315]  __might_resched.cold (kernel/sched/core.c:9234)
[   13.138425][  T315]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   13.138429][  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)
[   13.138434][  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))
[   13.138437][  T315]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   13.138442][  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)
[   13.138445][  T315]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   13.138448][  T315]  put_chars (drivers/char/virtio_console.c:1176)
[   13.138450][  T315]  ? desc_read_finalized_seq (kernel/printk/printk_ringbuffer.c:1934)
[   13.138452][  T315]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   13.138455][  T315]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   13.138458][  T315]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   13.138463][  T315]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   13.138465][  T315]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.138467][  T315]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.138471][  T315]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   13.138473][  T315]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   13.138476][  T315]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.138478][  T315]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   13.138482][  T315]  console_emit_next_record (kernel/printk/printk.c:3183)
[   13.138486][  T315]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   13.138488][  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))
[   13.138491][  T315]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.138493][  T315]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   13.138497][  T315]  console_flush_one_record (kernel/printk/printk.c:3268)
[   13.138501][  T315]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   13.138503][  T315]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.138508][  T315]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   13.138511][  T315]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   13.138513][  T315]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.138515][  T315]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   13.138518][  T315]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   13.138520][  T315]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   13.138524][  T315]  vprintk_emit (kernel/printk/printk.c:2479)
[   13.138527][  T315]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   13.138533][  T315]  ? gact_cleanup_module (net/sched/act_gact.c:192) act_gact
[   13.138536][  T315]  _printk (kernel/printk/printk.c:2504)
[   13.138540][  T315]  ? snapshot_read.cold (user.c:?)
[   13.138546][  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)
[   13.138549][  T315] gact_init_module (net/sched/act_gact.c:180) act_gact
[   13.138551][  T315]  do_one_initcall (init/main.c:1357)
[   13.138553][  T315]  ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10)
[   13.138558][  T315]  ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1))
[   13.138561][  T315]  ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178)
[   13.138566][  T315]  do_init_module (kernel/module/main.c:3117)
[   13.138569][  T315]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   13.138574][  T315]  ? free_module (./include/trace/events/module.h:50 (discriminator 19))
[   13.138577][  T315]  ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792)
[   13.138581][  T315]  load_module (kernel/module/main.c:3593)
[   13.138588][  T315]  ? layout_and_allocate.isra.0 (kernel/module/main.c:3016)
[   13.138592][  T315]  ? __ia32_sys_fsconfig (??:?)
[   13.138595][  T315]  ? ovl_real_file (fs/overlayfs/file.c:195)
[   13.138599][  T315]  ? backing_file_read_iter (fs/backing-file.c:211)
[   13.138602][  T315]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   13.138606][  T315]  init_module_from_file (kernel/module/main.c:3790)
[   13.138609][  T315]  ? __do_sys_init_module (kernel/module/main.c:3664)
[   13.138617][  T315]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   13.138621][  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)
[   13.138628][  T315]  idempotent_init_module (kernel/module/main.c:3802)
[   13.138631][  T315]  ? init_module_from_file (kernel/module/main.c:3791)
[   13.138637][  T315]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.138640][  T315]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   13.138645][  T315]  __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812)
[   13.138647][  T315]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   13.138651][  T315]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   13.138653][  T315]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   13.138655][  T315]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   13.138658][  T315] RIP: 0033:0x7f5c46d5d37d
[   13.138661][  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
[   13.138663][  T315] RSP: 002b:00007ffc0c4bfbe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[   13.138666][  T315] RAX: ffffffffffffffda RBX: 0000563574515810 RCX: 00007f5c46d5d37d
[   13.138667][  T315] RDX: 0000000000000000 RSI: 0000563546c9affd RDI: 0000000000000000
[   13.138668][  T315] RBP: 00007ffc0c4bfc80 R08: 0000000000000000 R09: 0000000000000000
[   13.138669][  T315] R10: 0000000000000000 R11: 0000000000000246 R12: 0000563546c9affd
[   13.138670][  T315] R13: 0000563574515960 R14: 0000000000040000 R15: 0000000000000000
| [   24.072596][  T379] softirqs last disabled at (4909903): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   24.072598][  T379] Preemption disabled at:
| [   24.072598][  T379] 0x0
| [   24.072609][  T379] Tainted: [W]=WARN
[   24.072610][  T379] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.072612][  T379] Call Trace:
[   24.072613][  T379]  <TASK>
[   24.072615][  T379]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   24.072621][  T379]  __might_resched.cold (kernel/sched/core.c:9234)
[   24.072625][  T379]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   24.072629][  T379]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   24.072634][  T379]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   24.072636][  T379]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   24.072642][  T379]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   24.072645][  T379]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   24.072648][  T379]  put_chars (drivers/char/virtio_console.c:1176)
[   24.072651][  T379]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   24.072652][  T379]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   24.072656][  T379]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   24.072670][  T379]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   24.072677][  T379]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   24.072679][  T379]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.072681][  T379]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   24.072685][  T379]  console_emit_next_record (kernel/printk/printk.c:3183)
[   24.072689][  T379]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   24.072690][  T379]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   24.072693][  T379]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.072696][  T379]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   24.072700][  T379]  console_flush_one_record (kernel/printk/printk.c:3268)
[   24.072704][  T379]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   24.072705][  T379]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.072710][  T379]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   24.072713][  T379]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   24.072715][  T379]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.072717][  T379]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   24.072721][  T379]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   24.072722][  T379]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   24.072726][  T379]  vprintk_emit (kernel/printk/printk.c:2479)
[   24.072729][  T379]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   24.072732][  T379]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.072736][  T379]  _printk (kernel/printk/printk.c:2504)
[   24.072740][  T379]  ? snapshot_read.cold (user.c:?)
[   24.072742][  T379]  ? 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)
[   24.072745][  T379]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   24.072748][  T379]  ? 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)
[   24.072751][  T379]  do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4))
[   24.072755][  T379]  ? exit_notify (kernel/exit.c:780)
[   24.072757][  T379]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   24.072760][  T379]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.072764][  T379]  do_group_exit (kernel/exit.c:1151)
[   24.072766][  T379]  __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160)
[   24.072768][  T379]  x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232)
[   24.072770][  T379]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   24.072773][  T379]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   24.072777][  T379]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   24.072779][  T379] RIP: 0033:0x7f8dc44fa1b8
[   24.072781][  T379] Code: Unable to access opcode bytes at 0x7f8dc44fa18e.

Code starting with the faulting instruction
===========================================
[   24.072783][  T379] RSP: 002b:00007ffc6f99d8c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[   24.072785][  T379] RAX: ffffffffffffffda RBX: 00007f8dc462af88 RCX: 00007f8dc44fa1b8
[   24.072786][  T379] RDX: 00007f8dc42ebf88 RSI: fffffffffffffce8 RDI: 0000000000000000
[   24.072787][  T379] RBP: 00007ffc6f99d920 R08: 0000000000000000 R09: 0000000000000000
[   24.072788][  T379] R10: 00007f8dc43401a0 R11: 0000000000000246 R12: 0000000000000001


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