======================================
| [   10.055076][  T179] softirqs last disabled at (47767): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   10.055079][  T179] Preemption disabled at:
| [   10.055079][  T179] vprintk_emit (kernel/printk/printk.c:2471)
| [   10.055089][  T179] Tainted: [W]=WARN
[   10.055090][  T179] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.055092][  T179] Call Trace:
[   10.055094][  T179]  <TASK>
[   10.055095][  T179]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   10.055101][  T179]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   10.055103][  T179]  __might_resched.cold (kernel/sched/core.c:9234)
[   10.055108][  T179]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   10.055112][  T179]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   10.055118][  T179]  __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))
[   10.055120][  T179]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.055127][  T179]  ? 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)
[   10.055130][  T179]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.055133][  T179]  put_chars (drivers/char/virtio_console.c:1176)
[   10.055137][  T179]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   10.055138][  T179]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   10.055143][  T179]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   10.055146][  T179]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   10.055151][  T179]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   10.055154][  T179]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.055159][  T179]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   10.055162][  T179]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.055168][  T179]  console_emit_next_record (kernel/printk/printk.c:3183)
[   10.055172][  T179]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   10.055174][  T179]  ? 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))
[   10.055177][  T179]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.055179][  T179]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.055184][  T179]  console_flush_one_record (kernel/printk/printk.c:3268)
[   10.055188][  T179]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   10.055190][  T179]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.055195][  T179]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   10.055198][  T179]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   10.055200][  T179]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.055203][  T179]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   10.055206][  T179]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   10.055208][  T179]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   10.055212][  T179]  vprintk_emit (kernel/printk/printk.c:2479)
[   10.055218][  T179]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   10.055224][  T179]  ? ppp_cleanup (drivers/net/ppp/ppp_generic.c:1603) ppp_generic
[   10.055229][  T179]  _printk (kernel/printk/printk.c:2504)
[   10.055233][  T179]  ? snapshot_read.cold (user.c:?)
[   10.055239][  T179]  ? 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)
[   10.055243][  T179] ppp_init (ppp_generic.mod.c:?) ppp_generic
[   10.055247][  T179]  do_one_initcall (init/main.c:1357)
[   10.055249][  T179]  ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10)
[   10.055254][  T179]  ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1))
[   10.055257][  T179]  ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178)
[   10.055262][  T179]  do_init_module (kernel/module/main.c:3117)
[   10.055266][  T179]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   10.055271][  T179]  ? free_module (./include/trace/events/module.h:50 (discriminator 19))
[   10.055274][  T179]  ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792)
[   10.055278][  T179]  load_module (kernel/module/main.c:3593)
[   10.055286][  T179]  ? layout_and_allocate.isra.0 (kernel/module/main.c:3016)
[   10.055291][  T179]  ? backing_file_read_iter (fs/backing-file.c:211)
[   10.055294][  T179]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   10.055298][  T179]  init_module_from_file (kernel/module/main.c:3790)
[   10.055302][  T179]  ? __do_sys_init_module (kernel/module/main.c:3664)
[   10.055310][  T179]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   10.055314][  T179]  ? 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)
[   10.055317][  T179]  idempotent_init_module (kernel/module/main.c:3802)
[   10.055321][  T179]  ? init_module_from_file (kernel/module/main.c:3791)
[   10.055328][  T179]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.055330][  T179]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   10.055337][  T179]  __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812)
[   10.055339][  T179]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   10.055343][  T179]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   10.055346][  T179]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   10.055348][  T179]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.055351][  T179] RIP: 0033:0x7fef1997f37d
[   10.055355][  T179] 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
[   10.055357][  T179] RSP: 002b:00007ffd6dd14ec8 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[   10.055360][  T179] RAX: ffffffffffffffda RBX: 00005632cd023d20 RCX: 00007fef1997f37d
[   10.055361][  T179] RDX: 0000000000000000 RSI: 00005632a3b24ffd RDI: 0000000000000006
[   10.055362][  T179] RBP: 00007ffd6dd14f60 R08: 0000000000000000 R09: 0000000000000000
[   10.055363][  T179] R10: 0000000000000000 R11: 0000000000000246 R12: 00005632a3b24ffd
[   10.055364][  T179] R13: 00005632cd023cd0 R14: 0000000000040000 R15: 0000000000000000
| [   13.439267][  T198] softirqs last disabled at (26635): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   13.439270][  T198] Preemption disabled at:
| [   13.439270][  T198] vprintk_emit (kernel/printk/printk.c:2471)
| [   13.439280][  T198] Tainted: [W]=WARN
[   13.439281][  T198] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.439282][  T198] Call Trace:
[   13.439284][  T198]  <TASK>
[   13.439285][  T198]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   13.439291][  T198]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   13.439293][  T198]  __might_resched.cold (kernel/sched/core.c:9234)
[   13.439298][  T198]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   13.439302][  T198]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   13.439308][  T198]  __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))
[   13.439310][  T198]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   13.439320][  T198]  ? 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)
[   13.439323][  T198]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   13.439326][  T198]  put_chars (drivers/char/virtio_console.c:1176)
[   13.439330][  T198]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   13.439331][  T198]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   13.439336][  T198]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   13.439339][  T198]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   13.439344][  T198]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   13.439347][  T198]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.439352][  T198]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   13.439355][  T198]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.439360][  T198]  console_emit_next_record (kernel/printk/printk.c:3183)
[   13.439364][  T198]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   13.439366][  T198]  ? 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))
[   13.439369][  T198]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.439371][  T198]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   13.439375][  T198]  console_flush_one_record (kernel/printk/printk.c:3268)
[   13.439380][  T198]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   13.439382][  T198]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.439387][  T198]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   13.439390][  T198]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   13.439392][  T198]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.439394][  T198]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   13.439398][  T198]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   13.439400][  T198]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   13.439403][  T198]  vprintk_emit (kernel/printk/printk.c:2479)
[   13.439407][  T198]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   13.439413][  T198]  ? ppp_cleanup (drivers/net/ppp/ppp_generic.c:1603) ppp_generic
[   13.439417][  T198]  _printk (kernel/printk/printk.c:2504)
[   13.439421][  T198]  ? snapshot_read.cold (user.c:?)
[   13.439425][  T198]  ? ppp_cleanup (drivers/net/ppp/ppp_generic.c:1603) ppp_generic
[   13.439428][  T198]  ? 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)
[   13.439430][  T198]  ? ppp_cleanup (drivers/net/ppp/ppp_generic.c:1603) ppp_generic
[   13.439433][  T198]  ? 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)
[   13.439436][  T198] bsdcomp_init (drivers/net/ppp/bsd_comp.c:297) bsd_comp
[   13.439439][  T198]  do_one_initcall (init/main.c:1357)
[   13.439442][  T198]  ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10)
[   13.439447][  T198]  ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1))
[   13.439450][  T198]  ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178)
[   13.439455][  T198]  do_init_module (kernel/module/main.c:3117)
[   13.439459][  T198]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   13.439463][  T198]  ? free_module (./include/trace/events/module.h:50 (discriminator 19))
[   13.439466][  T198]  ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792)
[   13.439470][  T198]  load_module (kernel/module/main.c:3593)
[   13.439478][  T198]  ? layout_and_allocate.isra.0 (kernel/module/main.c:3016)
[   13.439482][  T198]  ? __ia32_sys_fsconfig (??:?)
[   13.439484][  T198]  ? ovl_real_file (fs/overlayfs/file.c:195)
[   13.439488][  T198]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   13.439490][  T198]  ? backing_file_read_iter (fs/backing-file.c:211)
[   13.439493][  T198]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   13.439497][  T198]  init_module_from_file (kernel/module/main.c:3790)
[   13.439501][  T198]  ? __do_sys_init_module (kernel/module/main.c:3664)
[   13.439509][  T198]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   13.439513][  T198]  ? 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)
[   13.439516][  T198]  idempotent_init_module (kernel/module/main.c:3802)
[   13.439519][  T198]  ? init_module_from_file (kernel/module/main.c:3791)
[   13.439526][  T198]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.439528][  T198]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   13.439535][  T198]  __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812)
[   13.439537][  T198]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   13.439540][  T198]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   13.439543][  T198]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   13.439546][  T198]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   13.439548][  T198] RIP: 0033:0x7fde3cd0c37d
[   13.439552][  T198] 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
[   13.439554][  T198] RSP: 002b:00007ffde15541e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[   13.439556][  T198] RAX: ffffffffffffffda RBX: 0000557762798810 RCX: 00007fde3cd0c37d
[   13.439558][  T198] RDX: 0000000000000000 RSI: 000055773d064ffd RDI: 0000000000000000
[   13.439558][  T198] RBP: 00007ffde1554280 R08: 0000000000000000 R09: 0000000000000000
[   13.439559][  T198] R10: 0000000000000000 R11: 0000000000000246 R12: 000055773d064ffd
[   13.439560][  T198] R13: 00005577627989e0 R14: 0000000000040000 R15: 0000000000000000
| [   18.040114][  T225] softirqs last disabled at (821632): fpu__clear_user_states (./include/linux/bottom_half.h:20 (discriminator 2) ./arch/x86/include/asm/fpu/api.h:69 (discriminator 2) arch/x86/kernel/fpu/core.c:835 (discriminator 2))
| [   18.040117][  T225] Preemption disabled at:
| [   18.040118][  T225] 0x0
| [   18.040129][  T225] Tainted: [W]=WARN
[   18.040130][  T225] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   18.040131][  T225] Call Trace:
[   18.040133][  T225]  <TASK>
[   18.040135][  T225]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   18.040141][  T225]  __might_resched.cold (kernel/sched/core.c:9234)
[   18.040146][  T225]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   18.040150][  T225]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   18.040155][  T225]  __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))
[   18.040157][  T225]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   18.040163][  T225]  ? 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)
[   18.040166][  T225]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   18.040169][  T225]  put_chars (drivers/char/virtio_console.c:1176)
[   18.040172][  T225]  ? prb_final_commit (kernel/printk/printk_ringbuffer.c:1842)
[   18.040174][  T225]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   18.040177][  T225]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   18.040182][  T225]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   18.040184][  T225]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   18.040188][  T225]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   18.040192][  T225]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   18.040194][  T225]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   18.040195][  T225]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   18.040199][  T225]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   18.040201][  T225]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   18.040205][  T225]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   18.040207][  T225]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   18.040211][  T225]  console_emit_next_record (kernel/printk/printk.c:3183)
[   18.040215][  T225]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   18.040217][  T225]  ? 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))
[   18.040221][  T225]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   18.040223][  T225]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   18.040227][  T225]  console_flush_one_record (kernel/printk/printk.c:3268)
[   18.040231][  T225]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   18.040233][  T225]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   18.040238][  T225]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   18.040241][  T225]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   18.040243][  T225]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   18.040246][  T225]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   18.040249][  T225]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   18.040251][  T225]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   18.040255][  T225]  vprintk_emit (kernel/printk/printk.c:2479)
[   18.040259][  T225]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   18.040262][  T225]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   18.040266][  T225]  _printk (kernel/printk/printk.c:2504)
[   18.040269][  T225]  ? snapshot_read.cold (user.c:?)
[   18.040272][  T225]  ? 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)
[   18.040275][  T225]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   18.040279][  T225]  ? 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)
[   18.040282][  T225]  do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4))
[   18.040285][  T225]  ? exit_notify (kernel/exit.c:780)
[   18.040291][  T225]  __x64_sys_exit (kernel/exit.c:1118 kernel/exit.c:1116 kernel/exit.c:1116)
[   18.040293][  T225]  x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:61)
[   18.040295][  T225]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   18.040299][  T225]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   18.040302][  T225]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   18.040305][  T225] RIP: 0033:0x7f7dacfccc49
[   18.040307][  T225] Code: Unable to access opcode bytes at 0x7f7dacfccc1f.

Code starting with the faulting instruction
===========================================
[   18.040309][  T225] RSP: 002b:00007f7dac78be60 EFLAGS: 00000246 ORIG_RAX: 000000000000003c
[   18.040311][  T225] RAX: ffffffffffffffda RBX: 00007f7dac78c6c0 RCX: 00007f7dacfccc49
[   18.040312][  T225] RDX: 0000000000000000 RSI: 0000000000801000 RDI: 0000000000000000
[   18.040314][  T225] RBP: 00007f7dac78bf70 R08: 0000000000000001 R09: 00007f7dac78c6c0
[   18.040314][  T225] R10: 0000000000000008 R11: 0000000000000246 R12: 00007f7dabf8c000


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