======================================
| [   11.073200][  T247] softirqs last disabled at (20371): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   11.073202][  T247] Preemption disabled at:
| [   11.073203][  T247] vprintk_emit (kernel/printk/printk.c:2471)
| [   11.073211][  T247] Tainted: [W]=WARN
[   11.073212][  T247] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.073214][  T247] Call Trace:
[   11.073215][  T247]  <TASK>
[   11.073217][  T247]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   11.073222][  T247]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   11.073224][  T247]  __might_resched.cold (kernel/sched/core.c:9234)
[   11.073229][  T247]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   11.073233][  T247]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   11.073238][  T247]  __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))
[   11.073240][  T247]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.073246][  T247]  ? 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)
[   11.073248][  T247]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.073251][  T247]  put_chars (drivers/char/virtio_console.c:1176)
[   11.073254][  T247]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   11.073255][  T247]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   11.073260][  T247]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   11.073263][  T247]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   11.073267][  T247]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   11.073270][  T247]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.073274][  T247]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   11.073277][  T247]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.073282][  T247]  console_emit_next_record (kernel/printk/printk.c:3183)
[   11.073285][  T247]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   11.073287][  T247]  ? 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))
[   11.073290][  T247]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.073292][  T247]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.073296][  T247]  console_flush_one_record (kernel/printk/printk.c:3268)
[   11.073300][  T247]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   11.073302][  T247]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.073307][  T247]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   11.073309][  T247]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   11.073311][  T247]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.073314][  T247]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   11.073317][  T247]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   11.073319][  T247]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   11.073322][  T247]  vprintk_emit (kernel/printk/printk.c:2479)
[   11.073326][  T247]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   11.073331][  T247]  ? vlan_netlink_fini (./include/linux/etherdevice.h:306 net/8021q/vlan.c:316 net/8021q/vlan.c:416) 8021q
[   11.073335][  T247]  _printk (kernel/printk/printk.c:2504)
[   11.073339][  T247]  ? snapshot_read.cold (user.c:?)
[   11.073345][  T247]  ? 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)
[   11.073348][  T247] 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
[   11.073351][  T247]  do_one_initcall (init/main.c:1357)
[   11.073354][  T247]  ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10)
[   11.073358][  T247]  ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1))
[   11.073361][  T247]  ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178)
[   11.073366][  T247]  do_init_module (kernel/module/main.c:3117)
[   11.073369][  T247]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   11.073373][  T247]  ? free_module (./include/trace/events/module.h:50 (discriminator 19))
[   11.073376][  T247]  ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792)
[   11.073380][  T247]  load_module (kernel/module/main.c:3593)
[   11.073387][  T247]  ? layout_and_allocate.isra.0 (kernel/module/main.c:3016)
[   11.073391][  T247]  ? __ia32_sys_fsconfig (??:?)
[   11.073393][  T247]  ? ovl_real_file (fs/overlayfs/file.c:195)
[   11.073397][  T247]  ? backing_file_read_iter (fs/backing-file.c:211)
[   11.073400][  T247]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   11.073404][  T247]  init_module_from_file (kernel/module/main.c:3790)
[   11.073407][  T247]  ? __do_sys_init_module (kernel/module/main.c:3664)
[   11.073415][  T247]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   11.073418][  T247]  ? 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)
[   11.073421][  T247]  idempotent_init_module (kernel/module/main.c:3802)
[   11.073424][  T247]  ? init_module_from_file (kernel/module/main.c:3791)
[   11.073430][  T247]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.073432][  T247]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   11.073438][  T247]  __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812)
[   11.073440][  T247]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   11.073444][  T247]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   11.073445][  T247]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   11.073448][  T247]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.073453][  T247] RIP: 0033:0x7f93daa6037d
[   11.073456][  T247] 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
[   11.073458][  T247] RSP: 002b:00007fff9d171cd8 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[   11.073460][  T247] RAX: ffffffffffffffda RBX: 000055e2878af810 RCX: 00007f93daa6037d
[   11.073462][  T247] RDX: 0000000000000000 RSI: 000055e261efbffd RDI: 0000000000000000
[   11.073463][  T247] RBP: 00007fff9d171d70 R08: 0000000000000000 R09: 0000000000000000
[   11.073464][  T247] R10: 0000000000000000 R11: 0000000000000246 R12: 000055e261efbffd
[   11.073464][  T247] R13: 000055e2878af960 R14: 0000000000040000 R15: 0000000000000000
| [   13.187946][  T324] softirqs last disabled at (23815): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   13.187948][  T324] Preemption disabled at:
| [   13.187948][  T324] vprintk_emit (kernel/printk/printk.c:2471)
| [   13.187958][  T324] Tainted: [W]=WARN
[   13.187959][  T324] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.187961][  T324] Call Trace:
[   13.187962][  T324]  <TASK>
[   13.187964][  T324]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   13.187970][  T324]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   13.187972][  T324]  __might_resched.cold (kernel/sched/core.c:9234)
[   13.187976][  T324]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   13.187980][  T324]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   13.187985][  T324]  __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))
[   13.187987][  T324]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   13.187993][  T324]  ? 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)
[   13.187996][  T324]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   13.187999][  T324]  put_chars (drivers/char/virtio_console.c:1176)
[   13.188001][  T324]  ? desc_read_finalized_seq (kernel/printk/printk_ringbuffer.c:1934)
[   13.188003][  T324]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   13.188006][  T324]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   13.188009][  T324]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   13.188014][  T324]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   13.188016][  T324]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.188018][  T324]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.188022][  T324]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   13.188024][  T324]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   13.188027][  T324]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.188030][  T324]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   13.188034][  T324]  console_emit_next_record (kernel/printk/printk.c:3183)
[   13.188038][  T324]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   13.188039][  T324]  ? 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))
[   13.188042][  T324]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.188045][  T324]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   13.188048][  T324]  console_flush_one_record (kernel/printk/printk.c:3268)
[   13.188053][  T324]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   13.188054][  T324]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.188059][  T324]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   13.188062][  T324]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   13.188064][  T324]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.188066][  T324]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   13.188070][  T324]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   13.188071][  T324]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   13.188075][  T324]  vprintk_emit (kernel/printk/printk.c:2479)
[   13.188079][  T324]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   13.188084][  T324]  ? gre_exit (net/ipv4/gre_demux.c:73) gre
[   13.188087][  T324]  _printk (kernel/printk/printk.c:2504)
[   13.188091][  T324]  ? snapshot_read.cold (user.c:?)
[   13.188097][  T324]  ? 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)
[   13.188100][  T324] gact_init_module (net/sched/act_gact.c:180) act_gact
[   13.188103][  T324]  do_one_initcall (init/main.c:1357)
[   13.188105][  T324]  ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10)
[   13.188110][  T324]  ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1))
[   13.188113][  T324]  ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178)
[   13.188118][  T324]  do_init_module (kernel/module/main.c:3117)
[   13.188121][  T324]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   13.188125][  T324]  ? free_module (./include/trace/events/module.h:50 (discriminator 19))
[   13.188128][  T324]  ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792)
[   13.188132][  T324]  load_module (kernel/module/main.c:3593)
[   13.188139][  T324]  ? layout_and_allocate.isra.0 (kernel/module/main.c:3016)
[   13.188143][  T324]  ? __ia32_sys_fsconfig (??:?)
[   13.188146][  T324]  ? ovl_real_file (fs/overlayfs/file.c:195)
[   13.188149][  T324]  ? backing_file_read_iter (fs/backing-file.c:211)
[   13.188153][  T324]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   13.188156][  T324]  init_module_from_file (kernel/module/main.c:3790)
[   13.188159][  T324]  ? __do_sys_init_module (kernel/module/main.c:3664)
[   13.188167][  T324]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   13.188171][  T324]  ? 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)
[   13.188174][  T324]  idempotent_init_module (kernel/module/main.c:3802)
[   13.188177][  T324]  ? init_module_from_file (kernel/module/main.c:3791)
[   13.188183][  T324]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.188185][  T324]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   13.188191][  T324]  __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812)
[   13.188193][  T324]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   13.188197][  T324]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   13.188199][  T324]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   13.188201][  T324]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   13.188204][  T324] RIP: 0033:0x7f24e749237d
[   13.188207][  T324] 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
[   13.188209][  T324] RSP: 002b:00007ffe0065d678 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[   13.188212][  T324] RAX: ffffffffffffffda RBX: 0000560070d57810 RCX: 00007f24e749237d
[   13.188213][  T324] RDX: 0000000000000000 RSI: 0000560060f04ffd RDI: 0000000000000000
[   13.188214][  T324] RBP: 00007ffe0065d710 R08: 0000000000000000 R09: 0000000000000000
[   13.188215][  T324] R10: 0000000000000000 R11: 0000000000000246 R12: 0000560060f04ffd
[   13.188216][  T324] R13: 0000560070d57960 R14: 0000000000040000 R15: 0000000000000000
| [   21.175610][  T399] softirqs last disabled at (10969): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   21.175612][  T399] Preemption disabled at:
| [   21.175613][  T399] 0x0
| [   21.175622][  T399] Tainted: [W]=WARN
[   21.175623][  T399] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   21.175625][  T399] Call Trace:
[   21.175627][  T399]  <TASK>
[   21.175628][  T399]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   21.175635][  T399]  __might_resched.cold (kernel/sched/core.c:9234)
[   21.175639][  T399]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   21.175643][  T399]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   21.175648][  T399]  __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))
[   21.175651][  T399]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   21.175658][  T399]  ? 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)
[   21.175661][  T399]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   21.175664][  T399]  put_chars (drivers/char/virtio_console.c:1176)
[   21.175667][  T399]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   21.175668][  T399]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   21.175673][  T399]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   21.175678][  T399]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   21.175684][  T399]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   21.175686][  T399]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.175689][  T399]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   21.175692][  T399]  console_emit_next_record (kernel/printk/printk.c:3183)
[   21.175696][  T399]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   21.175698][  T399]  ? 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))
[   21.175701][  T399]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.175703][  T399]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   21.175707][  T399]  console_flush_one_record (kernel/printk/printk.c:3268)
[   21.175711][  T399]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   21.175713][  T399]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.175718][  T399]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   21.175721][  T399]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   21.175723][  T399]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.175725][  T399]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   21.175728][  T399]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   21.175730][  T399]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   21.175733][  T399]  vprintk_emit (kernel/printk/printk.c:2479)
[   21.175737][  T399]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   21.175740][  T399]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.175744][  T399]  _printk (kernel/printk/printk.c:2504)
[   21.175748][  T399]  ? snapshot_read.cold (user.c:?)
[   21.175750][  T399]  ? 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)
[   21.175753][  T399]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   21.175757][  T399]  ? 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)
[   21.175759][  T399]  do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4))
[   21.175763][  T399]  ? exit_notify (kernel/exit.c:780)
[   21.175765][  T399]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   21.175768][  T399]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.175772][  T399]  do_group_exit (kernel/exit.c:1151)
[   21.175774][  T399]  __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160)
[   21.175776][  T399]  x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232)
[   21.175778][  T399]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   21.175781][  T399]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   21.175784][  T399]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   21.175787][  T399] RIP: 0033:0x7f7c117f11b8
[   21.175789][  T399] Code: Unable to access opcode bytes at 0x7f7c117f118e.

Code starting with the faulting instruction
===========================================
[   21.175790][  T399] RSP: 002b:00007ffe953a4d38 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[   21.175792][  T399] RAX: ffffffffffffffda RBX: 00007f7c11921f88 RCX: 00007f7c117f11b8
[   21.175794][  T399] RDX: 00007f7c11615a48 RSI: ffffffffffffffb0 RDI: 0000000000000000
[   21.175794][  T399] RBP: 00007ffe953a4d90 R08: 00000000ffffffff R09: 0000000000000020
[   21.175795][  T399] R10: 00007ffe953a4bb0 R11: 0000000000000246 R12: 0000000000000004


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