======================================
| [   11.798731][  T252] softirqs last disabled at (17753): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   11.798734][  T252] Preemption disabled at:
| [   11.798734][  T252] 0x0
| [   11.798744][  T252] Tainted: [W]=WARN
[   11.798745][  T252] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.798747][  T252] Call Trace:
[   11.798749][  T252]  <TASK>
[   11.798750][  T252]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   11.798757][  T252]  __might_resched.cold (kernel/sched/core.c:9234)
[   11.798761][  T252]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   11.798765][  T252]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   11.798770][  T252]  __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))
[   11.798771][  T252]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.798778][  T252]  ? 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)
[   11.798781][  T252]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.798785][  T252]  put_chars (drivers/char/virtio_console.c:1176)
[   11.798788][  T252]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   11.798789][  T252]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   11.798793][  T252]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   11.798798][  T252]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   11.798805][  T252]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   11.798808][  T252]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.798810][  T252]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.798814][  T252]  console_emit_next_record (kernel/printk/printk.c:3183)
[   11.798818][  T252]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   11.798820][  T252]  ? 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))
[   11.798823][  T252]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.798825][  T252]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.798829][  T252]  console_flush_one_record (kernel/printk/printk.c:3268)
[   11.798833][  T252]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   11.798835][  T252]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.798840][  T252]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   11.798843][  T252]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   11.798845][  T252]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.798846][  T252]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   11.798850][  T252]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   11.798852][  T252]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   11.798854][  T252]  vprintk_emit (kernel/printk/printk.c:2479)
[   11.798858][  T252]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   11.798860][  T252]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.798864][  T252]  _printk (kernel/printk/printk.c:2504)
[   11.798868][  T252]  ? snapshot_read.cold (user.c:?)
[   11.798870][  T252]  ? 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)
[   11.798873][  T252]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   11.798877][  T252]  ? 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)
[   11.798879][  T252]  do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4))
[   11.798883][  T252]  ? exit_notify (kernel/exit.c:780)
[   11.798885][  T252]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.798887][  T252]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.798891][  T252]  do_group_exit (kernel/exit.c:1151)
[   11.798894][  T252]  __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160)
[   11.798896][  T252]  x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232)
[   11.798898][  T252]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   11.798902][  T252]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   11.798905][  T252]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.798907][  T252] RIP: 0033:0x7f76c02151b8
[   11.798909][  T252] Code: Unable to access opcode bytes at 0x7f76c021518e.

Code starting with the faulting instruction
===========================================
[   11.798910][  T252] RSP: 002b:00007fff68c083b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[   11.798913][  T252] RAX: ffffffffffffffda RBX: 00007f76c0345f88 RCX: 00007f76c02151b8
[   11.798914][  T252] RDX: 00007f76bff5ffc8 RSI: fffffffffffffeb8 RDI: 0000000000000000
[   11.798915][  T252] RBP: 00007fff68c08410 R08: 0000000000000000 R09: 0000000000000050
[   11.798916][  T252] R10: 00007fff68c081d0 R11: 0000000000000246 R12: 0000000000000001
[   11.798916][  T252] R13: 0000000000000000 R14: 00007f76c0344680 R15: 00007f76c0345fa0
| [   16.439177][  T385] softirqs last disabled at (23529): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   16.439179][  T385] Preemption disabled at:
| [   16.439180][  T385] vprintk_emit (kernel/printk/printk.c:2471)
| [   16.439189][  T385] Tainted: [W]=WARN
[   16.439190][  T385] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.439192][  T385] Call Trace:
[   16.439194][  T385]  <TASK>
[   16.439195][  T385]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   16.439201][  T385]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   16.439202][  T385]  __might_resched.cold (kernel/sched/core.c:9234)
[   16.439207][  T385]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   16.439211][  T385]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   16.439215][  T385]  __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))
[   16.439217][  T385]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   16.439224][  T385]  ? 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)
[   16.439227][  T385]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   16.439230][  T385]  put_chars (drivers/char/virtio_console.c:1176)
[   16.439232][  T385]  ? desc_read_finalized_seq (kernel/printk/printk_ringbuffer.c:1934)
[   16.439234][  T385]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   16.439237][  T385]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   16.439241][  T385]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   16.439246][  T385]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   16.439250][  T385]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   16.439252][  T385]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   16.439257][  T385]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   16.439259][  T385]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   16.439262][  T385]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.439264][  T385]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   16.439268][  T385]  console_emit_next_record (kernel/printk/printk.c:3183)
[   16.439272][  T385]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   16.439274][  T385]  ? 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))
[   16.439278][  T385]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.439279][  T385]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   16.439284][  T385]  console_flush_one_record (kernel/printk/printk.c:3268)
[   16.439288][  T385]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   16.439290][  T385]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   16.439295][  T385]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   16.439298][  T385]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   16.439300][  T385]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.439301][  T385]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   16.439305][  T385]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   16.439307][  T385]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   16.439310][  T385]  vprintk_emit (kernel/printk/printk.c:2479)
[   16.439313][  T385]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   16.439318][  T385]  ? gact_cleanup_module (net/sched/act_gact.c:192) act_gact
[   16.439321][  T385]  _printk (kernel/printk/printk.c:2504)
[   16.439325][  T385]  ? snapshot_read.cold (user.c:?)
[   16.439331][  T385]  ? 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)
[   16.439335][  T385] gact_init_module (net/sched/act_gact.c:180) act_gact
[   16.439337][  T385]  do_one_initcall (init/main.c:1357)
[   16.439340][  T385]  ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10)
[   16.439345][  T385]  ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1))
[   16.439347][  T385]  ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178)
[   16.439353][  T385]  do_init_module (kernel/module/main.c:3117)
[   16.439356][  T385]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   16.439360][  T385]  ? free_module (./include/trace/events/module.h:50 (discriminator 19))
[   16.439363][  T385]  ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792)
[   16.439366][  T385]  load_module (kernel/module/main.c:3593)
[   16.439372][  T385]  ? security_kernel_post_read_file (security/security.c:2997 (discriminator 11))
[   16.439376][  T385]  ? layout_and_allocate.isra.0 (kernel/module/main.c:3016)
[   16.439380][  T385]  ? __ia32_sys_fsconfig (??:?)
[   16.439384][  T385]  ? backing_file_read_iter (fs/backing-file.c:211)
[   16.439388][  T385]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   16.439391][  T385]  init_module_from_file (kernel/module/main.c:3790)
[   16.439394][  T385]  ? __do_sys_init_module (kernel/module/main.c:3664)
[   16.439401][  T385]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   16.439405][  T385]  ? 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)
[   16.439408][  T385]  idempotent_init_module (kernel/module/main.c:3802)
[   16.439411][  T385]  ? init_module_from_file (kernel/module/main.c:3791)
[   16.439417][  T385]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   16.439419][  T385]  ? __x64_sys_pread64 (fs/read_write.c:764 fs/read_write.c:772 fs/read_write.c:769 fs/read_write.c:769)
[   16.439424][  T385]  __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812)
[   16.439426][  T385]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   16.439430][  T385]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   16.439433][  T385]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   16.439435][  T385]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   16.439438][  T385] RIP: 0033:0x7f874540137d
[   16.439441][  T385] 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
[   16.439442][  T385] RSP: 002b:00007ffeae634728 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[   16.439445][  T385] RAX: ffffffffffffffda RBX: 0000562b4149d810 RCX: 00007f874540137d
[   16.439447][  T385] RDX: 0000000000000000 RSI: 0000562b10b17ffd RDI: 0000000000000000
[   16.439447][  T385] RBP: 00007ffeae6347c0 R08: 0000000000000000 R09: 0000000000000000
[   16.439448][  T385] R10: 0000000000000000 R11: 0000000000000246 R12: 0000562b10b17ffd


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