======================================
| [   10.848463][  T179] softirqs last disabled at (38063): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   10.848466][  T179] Preemption disabled at:
| [   10.848466][  T179] vprintk_emit (kernel/printk/printk.c:2471)
| [   10.848475][  T179] Tainted: [W]=WARN
[   10.848476][  T179] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.848478][  T179] Call Trace:
[   10.848480][  T179]  <TASK>
[   10.848481][  T179]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   10.848487][  T179]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   10.848489][  T179]  __might_resched.cold (kernel/sched/core.c:9234)
[   10.848493][  T179]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   10.848498][  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)
[   10.848503][  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))
[   10.848505][  T179]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.848511][  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)
[   10.848514][  T179]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.848517][  T179]  put_chars (drivers/char/virtio_console.c:1176)
[   10.848520][  T179]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   10.848522][  T179]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   10.848527][  T179]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   10.848529][  T179]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   10.848533][  T179]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   10.848536][  T179]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.848541][  T179]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   10.848544][  T179]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.848549][  T179]  console_emit_next_record (kernel/printk/printk.c:3183)
[   10.848553][  T179]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   10.848555][  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))
[   10.848558][  T179]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.848560][  T179]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.848564][  T179]  console_flush_one_record (kernel/printk/printk.c:3268)
[   10.848568][  T179]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   10.848570][  T179]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.848575][  T179]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   10.848578][  T179]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   10.848580][  T179]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.848582][  T179]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   10.848586][  T179]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   10.848587][  T179]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   10.848591][  T179]  vprintk_emit (kernel/printk/printk.c:2479)
[   10.848595][  T179]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   10.848600][  T179]  ? ppp_cleanup (drivers/net/ppp/ppp_generic.c:1603) ppp_generic
[   10.848604][  T179]  _printk (kernel/printk/printk.c:2504)
[   10.848607][  T179]  ? snapshot_read.cold (user.c:?)
[   10.848613][  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)
[   10.848617][  T179] ppp_init (ppp_generic.mod.c:?) ppp_generic
[   10.848620][  T179]  do_one_initcall (init/main.c:1357)
[   10.848623][  T179]  ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10)
[   10.848627][  T179]  ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1))
[   10.848630][  T179]  ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178)
[   10.848635][  T179]  do_init_module (kernel/module/main.c:3117)
[   10.848639][  T179]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   10.848643][  T179]  ? free_module (./include/trace/events/module.h:50 (discriminator 19))
[   10.848646][  T179]  ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792)
[   10.848650][  T179]  load_module (kernel/module/main.c:3593)
[   10.848657][  T179]  ? layout_and_allocate.isra.0 (kernel/module/main.c:3016)
[   10.848662][  T179]  ? backing_file_read_iter (fs/backing-file.c:211)
[   10.848666][  T179]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   10.848670][  T179]  init_module_from_file (kernel/module/main.c:3790)
[   10.848673][  T179]  ? __do_sys_init_module (kernel/module/main.c:3664)
[   10.848681][  T179]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   10.848685][  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)
[   10.848688][  T179]  idempotent_init_module (kernel/module/main.c:3802)
[   10.848691][  T179]  ? init_module_from_file (kernel/module/main.c:3791)
[   10.848697][  T179]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.848700][  T179]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   10.848706][  T179]  __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812)
[   10.848709][  T179]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   10.848712][  T179]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   10.848715][  T179]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   10.848717][  T179]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.848720][  T179] RIP: 0033:0x7fb367a7237d
[   10.848723][  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
[   10.848725][  T179] RSP: 002b:00007ffd2e33c0f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[   10.848728][  T179] RAX: ffffffffffffffda RBX: 00005558ac018d10 RCX: 00007fb367a7237d
[   10.848729][  T179] RDX: 0000000000000000 RSI: 0000555899d35ffd RDI: 0000000000000006
[   10.848730][  T179] RBP: 00007ffd2e33c190 R08: 0000000000000000 R09: 0000000000000000
[   10.848731][  T179] R10: 0000000000000000 R11: 0000000000000246 R12: 0000555899d35ffd
[   10.848731][  T179] R13: 00005558ac018cc0 R14: 0000000000040000 R15: 0000000000000000
| [   19.061599][  T239] softirqs last disabled at (1406585): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   19.061603][  T239] Preemption disabled at:
| [   19.061604][  T239] 0x0
| [   19.061617][  T239] Tainted: [W]=WARN
[   19.061618][  T239] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.061621][  T239] Call Trace:
[   19.061623][  T239]  <TASK>
[   19.061625][  T239]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   19.061633][  T239]  __might_resched.cold (kernel/sched/core.c:9234)
[   19.061640][  T239]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   19.061645][  T239]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   19.061652][  T239]  __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))
[   19.061656][  T239]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   19.061665][  T239]  ? 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)
[   19.061668][  T239]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   19.061673][  T239]  put_chars (drivers/char/virtio_console.c:1176)
[   19.061677][  T239]  ? prb_final_commit (kernel/printk/printk_ringbuffer.c:1842)
[   19.061680][  T239]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   19.061686][  T239]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   19.061691][  T239]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   19.061695][  T239]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   19.061701][  T239]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   19.061705][  T239]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   19.061708][  T239]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   19.061711][  T239]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   19.061717][  T239]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   19.061721][  T239]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   19.061726][  T239]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.061730][  T239]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   19.061736][  T239]  console_emit_next_record (kernel/printk/printk.c:3183)
[   19.061742][  T239]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   19.061745][  T239]  ? 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))
[   19.061750][  T239]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.061754][  T239]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   19.061761][  T239]  console_flush_one_record (kernel/printk/printk.c:3268)
[   19.061768][  T239]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   19.061770][  T239]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   19.061779][  T239]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   19.061783][  T239]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   19.061786][  T239]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.061790][  T239]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   19.061796][  T239]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   19.061798][  T239]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   19.061804][  T239]  vprintk_emit (kernel/printk/printk.c:2479)
[   19.061810][  T239]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   19.061815][  T239]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   19.061821][  T239]  _printk (kernel/printk/printk.c:2504)
[   19.061826][  T239]  ? snapshot_read.cold (user.c:?)
[   19.061831][  T239]  ? 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)
[   19.061835][  T239]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   19.061841][  T239]  ? 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)
[   19.061845][  T239]  do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4))
[   19.061851][  T239]  ? exit_notify (kernel/exit.c:780)
[   19.061860][  T239]  __x64_sys_exit (kernel/exit.c:1118 kernel/exit.c:1116 kernel/exit.c:1116)
[   19.061863][  T239]  x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:61)
[   19.061867][  T239]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   19.061871][  T239]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   19.061876][  T239]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   19.061879][  T239] RIP: 0033:0x7f3090c4ec49
[   19.061883][  T239] Code: Unable to access opcode bytes at 0x7f3090c4ec1f.

Code starting with the faulting instruction
===========================================
[   19.061885][  T239] RSP: 002b:00007f309040de60 EFLAGS: 00000246 ORIG_RAX: 000000000000003c
[   19.061888][  T239] RAX: ffffffffffffffda RBX: 00007f309040e6c0 RCX: 00007f3090c4ec49
[   19.061890][  T239] RDX: 0000000000000000 RSI: 0000000000801000 RDI: 0000000000000000
[   19.061892][  T239] RBP: 00007f309040df70 R08: 0000000000000001 R09: 00007f309040e6c0
[   19.061893][  T239] R10: 0000000000000008 R11: 0000000000000246 R12: 00007f308fc0e000


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