======================================
| [   16.438350][  T246] softirqs last disabled at (16505): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   16.438354][  T246] Preemption disabled at:
| [   16.438354][  T246] vprintk_emit (kernel/printk/printk.c:2471)
| [   16.438367][  T246] Tainted: [W]=WARN
[   16.438368][  T246] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.438371][  T246] Call Trace:
[   16.438373][  T246]  <TASK>
[   16.438375][  T246]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   16.438382][  T246]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   16.438386][  T246]  __might_resched.cold (kernel/sched/core.c:9234)
[   16.438392][  T246]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   16.438398][  T246]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   16.438405][  T246]  __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))
[   16.438409][  T246]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   16.438418][  T246]  ? 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)
[   16.438422][  T246]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   16.438427][  T246]  put_chars (drivers/char/virtio_console.c:1176)
[   16.438430][  T246]  ? desc_read_finalized_seq (kernel/printk/printk_ringbuffer.c:1934)
[   16.438434][  T246]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   16.438439][  T246]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   16.438444][  T246]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   16.438451][  T246]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   16.438455][  T246]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   16.438458][  T246]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   16.438466][  T246]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   16.438468][  T246]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   16.438473][  T246]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.438478][  T246]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   16.438485][  T246]  console_emit_next_record (kernel/printk/printk.c:3183)
[   16.438491][  T246]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   16.438494][  T246]  ? 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))
[   16.438499][  T246]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.438503][  T246]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   16.438510][  T246]  console_flush_one_record (kernel/printk/printk.c:3268)
[   16.438517][  T246]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   16.438520][  T246]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   16.438529][  T246]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   16.438534][  T246]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   16.438537][  T246]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.438540][  T246]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   16.438547][  T246]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   16.438549][  T246]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   16.438555][  T246]  vprintk_emit (kernel/printk/printk.c:2479)
[   16.438562][  T246]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   16.438572][  T246]  ? gact_cleanup_module (net/sched/act_gact.c:192) act_gact
[   16.438577][  T246]  _printk (kernel/printk/printk.c:2504)
[   16.438582][  T246]  ? snapshot_read.cold (user.c:?)
[   16.438593][  T246]  ? 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)
[   16.438598][  T246] gact_init_module (net/sched/act_gact.c:180) act_gact
[   16.438602][  T246]  do_one_initcall (init/main.c:1357)
[   16.438606][  T246]  ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10)
[   16.438615][  T246]  ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1))
[   16.438619][  T246]  ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178)
[   16.438627][  T246]  do_init_module (kernel/module/main.c:3117)
[   16.438633][  T246]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   16.438639][  T246]  ? free_module (./include/trace/events/module.h:50 (discriminator 19))
[   16.438644][  T246]  ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792)
[   16.438651][  T246]  load_module (kernel/module/main.c:3593)
[   16.438664][  T246]  ? layout_and_allocate.isra.0 (kernel/module/main.c:3016)
[   16.438671][  T246]  ? __ia32_sys_fsconfig (??:?)
[   16.438674][  T246]  ? ovl_real_file (fs/overlayfs/file.c:195)
[   16.438680][  T246]  ? backing_file_read_iter (fs/backing-file.c:211)
[   16.438684][  T246]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   16.438691][  T246]  init_module_from_file (kernel/module/main.c:3790)
[   16.438696][  T246]  ? __do_sys_init_module (kernel/module/main.c:3664)
[   16.438712][  T246]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   16.438718][  T246]  ? 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)
[   16.438723][  T246]  idempotent_init_module (kernel/module/main.c:3802)
[   16.438732][  T246]  ? init_module_from_file (kernel/module/main.c:3791)
[   16.438743][  T246]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.438747][  T246]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   16.438756][  T246]  __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812)
[   16.438759][  T246]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   16.438765][  T246]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   16.438767][  T246]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   16.438772][  T246]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   16.438775][  T246] RIP: 0033:0x7fb2e71d637d
[   16.438780][  T246] 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
[   16.438783][  T246] RSP: 002b:00007ffd8071d798 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[   16.438787][  T246] RAX: ffffffffffffffda RBX: 0000557e0758e810 RCX: 00007fb2e71d637d
[   16.438789][  T246] RDX: 0000000000000000 RSI: 0000557ded7caffd RDI: 0000000000000000
[   16.438790][  T246] RBP: 00007ffd8071d830 R08: 0000000000000000 R09: 0000000000000000
[   16.438792][  T246] R10: 0000000000000000 R11: 0000000000000246 R12: 0000557ded7caffd
[   16.438793][  T246] R13: 0000557e0758e960 R14: 0000000000040000 R15: 0000000000000000
| [   19.451491][  T498] softirqs last disabled at (23952): netlink_release (./include/net/sock.h:2138 net/netlink/af_netlink.c:727)
| [   19.451493][  T498] Preemption disabled at:
| [   19.451494][  T498] 0x0
| [   19.451504][  T498] Tainted: [W]=WARN
[   19.451505][  T498] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.451507][  T498] Call Trace:
[   19.451509][  T498]  <TASK>
[   19.451510][  T498]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   19.451517][  T498]  __might_resched.cold (kernel/sched/core.c:9234)
[   19.451521][  T498]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   19.451526][  T498]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   19.451531][  T498]  __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))
[   19.451533][  T498]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   19.451539][  T498]  ? 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)
[   19.451541][  T498]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   19.451544][  T498]  put_chars (drivers/char/virtio_console.c:1176)
[   19.451547][  T498]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   19.451549][  T498]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   19.451554][  T498]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   19.451559][  T498]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   19.451565][  T498]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   19.451567][  T498]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.451569][  T498]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   19.451573][  T498]  console_emit_next_record (kernel/printk/printk.c:3183)
[   19.451577][  T498]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   19.451579][  T498]  ? 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))
[   19.451582][  T498]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.451584][  T498]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   19.451588][  T498]  console_flush_one_record (kernel/printk/printk.c:3268)
[   19.451592][  T498]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   19.451594][  T498]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   19.451599][  T498]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   19.451602][  T498]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   19.451604][  T498]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.451606][  T498]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   19.451609][  T498]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   19.451611][  T498]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   19.451614][  T498]  vprintk_emit (kernel/printk/printk.c:2479)
[   19.451618][  T498]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   19.451622][  T498]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   19.451625][  T498]  _printk (kernel/printk/printk.c:2504)
[   19.451629][  T498]  ? snapshot_read.cold (user.c:?)
[   19.451632][  T498]  ? 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)
[   19.451634][  T498]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   19.451638][  T498]  ? 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)
[   19.451641][  T498]  do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4))
[   19.451645][  T498]  ? exit_notify (kernel/exit.c:780)
[   19.451647][  T498]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   19.451649][  T498]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.451653][  T498]  do_group_exit (kernel/exit.c:1151)
[   19.451656][  T498]  __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160)
[   19.451658][  T498]  x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232)
[   19.451660][  T498]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   19.451663][  T498]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   19.451666][  T498]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   19.451669][  T498] RIP: 0033:0x7f437f89e1b8
[   19.451671][  T498] Code: Unable to access opcode bytes at 0x7f437f89e18e.

Code starting with the faulting instruction
===========================================
[   19.451672][  T498] RSP: 002b:00007fffa09acad8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[   19.451674][  T498] RAX: ffffffffffffffda RBX: 00007f437f9cef88 RCX: 00007f437f89e1b8
[   19.451676][  T498] RDX: 00007f437f5e8fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000
[   19.451677][  T498] RBP: 00007fffa09acb30 R08: 0000000000000000 R09: 0000000000000050
[   19.451678][  T498] R10: 00007fffa09ac8f0 R11: 0000000000000246 R12: 0000000000000001


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