======================================
| [    8.852338][  T170] softirqs last disabled at (30975): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [    8.852341][  T170] Preemption disabled at:
| [    8.852342][  T170] vprintk_emit (kernel/printk/printk.c:2471)
| [    8.852350][  T170] Tainted: [W]=WARN
[    8.852351][  T170] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    8.852353][  T170] Call Trace:
[    8.852354][  T170]  <TASK>
[    8.852356][  T170]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[    8.852361][  T170]  ? vprintk_emit (kernel/printk/printk.c:2471)
[    8.852363][  T170]  __might_resched.cold (kernel/sched/core.c:9234)
[    8.852368][  T170]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[    8.852372][  T170]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[    8.852377][  T170]  __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))
[    8.852379][  T170]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[    8.852385][  T170]  ? 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)
[    8.852387][  T170]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[    8.852390][  T170]  put_chars (drivers/char/virtio_console.c:1176)
[    8.852393][  T170]  ? __send_to_port (drivers/char/virtio_console.c:654)
[    8.852396][  T170]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[    8.852400][  T170]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[    8.852407][  T170]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[    8.852409][  T170]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    8.852413][  T170]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[    8.852416][  T170]  console_emit_next_record (kernel/printk/printk.c:3183)
[    8.852420][  T170]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[    8.852424][  T170]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    8.852426][  T170]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[    8.852430][  T170]  console_flush_one_record (kernel/printk/printk.c:3268)
[    8.852434][  T170]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[    8.852435][  T170]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[    8.852440][  T170]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[    8.852443][  T170]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[    8.852444][  T170]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    8.852446][  T170]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[    8.852450][  T170]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[    8.852451][  T170]  ? vprintk_emit (kernel/printk/printk.c:2478)
[    8.852454][  T170]  vprintk_emit (kernel/printk/printk.c:2479)
[    8.852458][  T170]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[    8.852459][  T170]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[    8.852463][  T170]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[    8.852465][  T170]  ? fast_dput (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) fs/dcache.c:948 (discriminator 2))
[    8.852469][  T170]  ? cleanup_netconsole (./include/linux/list.h:99 (discriminator 2) ./include/linux/list.h:169 (discriminator 2) ./include/linux/list.h:206 (discriminator 2) ./include/linux/configfs.h:112 (discriminator 2) drivers/net/netconsole.c:1718 (discriminator 2)) netconsole
[    8.852473][  T170]  _printk (kernel/printk/printk.c:2504)
[    8.852477][  T170]  ? snapshot_read.cold (user.c:?)
[    8.852480][  T170]  ? __up_write (kernel/locking/rwsem.c:1422 (discriminator 1))
[    8.852483][  T170]  ? cleanup_netconsole (./include/linux/list.h:99 (discriminator 2) ./include/linux/list.h:169 (discriminator 2) ./include/linux/list.h:206 (discriminator 2) ./include/linux/configfs.h:112 (discriminator 2) drivers/net/netconsole.c:1718 (discriminator 2)) netconsole
[    8.852487][  T170]  ? configfs_register_subsystem (./include/linux/instrumented.h:112 ./include/linux/atomic/atomic-instrumented.h:1383 fs/configfs/dir.c:173 fs/configfs/dir.c:171 fs/configfs/dir.c:1929)
[    8.852492][  T170] init_netconsole (drivers/net/netconsole.c:1286) netconsole
[    8.852495][  T170]  ? cleanup_netconsole (./include/linux/list.h:99 (discriminator 2) ./include/linux/list.h:169 (discriminator 2) ./include/linux/list.h:206 (discriminator 2) ./include/linux/configfs.h:112 (discriminator 2) drivers/net/netconsole.c:1718 (discriminator 2)) netconsole
[    8.852502][  T170]  ? cleanup_netconsole (./include/linux/list.h:99 (discriminator 2) ./include/linux/list.h:169 (discriminator 2) ./include/linux/list.h:206 (discriminator 2) ./include/linux/configfs.h:112 (discriminator 2) drivers/net/netconsole.c:1718 (discriminator 2)) netconsole
[    8.852505][  T170]  do_one_initcall (init/main.c:1357)
[    8.852508][  T170]  ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10)
[    8.852513][  T170]  ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1))
[    8.852516][  T170]  ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178)
[    8.852524][  T170]  do_init_module (kernel/module/main.c:3117)
[    8.852528][  T170]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[    8.852532][  T170]  ? free_module (./include/trace/events/module.h:50 (discriminator 19))
[    8.852535][  T170]  ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792)
[    8.852539][  T170]  load_module (kernel/module/main.c:3593)
[    8.852546][  T170]  ? layout_and_allocate.isra.0 (kernel/module/main.c:3016)
[    8.852549][  T170]  ? __ia32_sys_fsconfig (??:?)
[    8.852552][  T170]  ? ovl_real_file (fs/overlayfs/file.c:195)
[    8.852556][  T170]  ? backing_file_read_iter (fs/backing-file.c:211)
[    8.852560][  T170]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[    8.852563][  T170]  init_module_from_file (kernel/module/main.c:3790)
[    8.852566][  T170]  ? __do_sys_init_module (kernel/module/main.c:3664)
[    8.852575][  T170]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[    8.852578][  T170]  ? 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)
[    8.852581][  T170]  idempotent_init_module (kernel/module/main.c:3802)
[    8.852585][  T170]  ? init_module_from_file (kernel/module/main.c:3791)
[    8.852591][  T170]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    8.852593][  T170]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[    8.852599][  T170]  __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812)
[    8.852601][  T170]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[    8.852605][  T170]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[    8.852612][  T170]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[    8.852615][  T170]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    8.852617][  T170] RIP: 0033:0x7fa21911537d
[    8.852620][  T170] 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
[    8.852622][  T170] RSP: 002b:00007ffe81d54078 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[    8.852625][  T170] RAX: ffffffffffffffda RBX: 000055c60392e700 RCX: 00007fa21911537d
[    8.852626][  T170] RDX: 0000000000000000 RSI: 000055c5f2e7cffd RDI: 0000000000000005
[    8.852627][  T170] RBP: 00007ffe81d54110 R08: 0000000000000000 R09: 0000000000000000
[    8.852628][  T170] R10: 0000000000000000 R11: 0000000000000246 R12: 000055c5f2e7cffd
[    8.852629][  T170] R13: 000055c60392e810 R14: 0000000000040000 R15: 0000000000000000
| [   10.815873][  T158] softirqs last disabled at (152554): restore_fpregs_from_user (./include/linux/bottom_half.h:20 (discriminator 2) ./arch/x86/include/asm/fpu/api.h:69 (discriminator 2) arch/x86/kernel/fpu/signal.c:277 (discriminator 2))
| [   10.815875][  T158] Preemption disabled at:
| [   10.815876][  T158] vprintk_emit (kernel/printk/printk.c:2471)
| [   10.815885][  T158] Tainted: [W]=WARN
[   10.815886][  T158] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.815888][  T158] Call Trace:
[   10.815889][  T158]  <TASK>
[   10.815891][  T158]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   10.815895][  T158]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   10.815897][  T158]  __might_resched.cold (kernel/sched/core.c:9234)
[   10.815902][  T158]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   10.815906][  T158]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   10.815910][  T158]  __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))
[   10.815912][  T158]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.815917][  T158]  ? 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)
[   10.815920][  T158]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.815923][  T158]  put_chars (drivers/char/virtio_console.c:1176)
[   10.815925][  T158]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   10.815927][  T158]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   10.815930][  T158]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   10.815933][  T158]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   10.815937][  T158]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   10.815939][  T158]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.815941][  T158]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.815945][  T158]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   10.815948][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.815951][  T158]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.815954][  T158]  console_emit_next_record (kernel/printk/printk.c:3183)
[   10.815958][  T158]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   10.815962][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.815964][  T158]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.815968][  T158]  console_flush_one_record (kernel/printk/printk.c:3268)
[   10.815971][  T158]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   10.815973][  T158]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.815978][  T158]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   10.815980][  T158]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   10.815982][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.815984][  T158]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   10.815987][  T158]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   10.815988][  T158]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   10.815991][  T158]  vprintk_emit (kernel/printk/printk.c:2479)
[   10.815995][  T158]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   10.815998][  T158]  ? _copy_from_iter (./include/linux/instrumented.h:146 lib/iov_iter.c:66 ./include/linux/iov_iter.h:30 ./include/linux/iov_iter.h:302 ./include/linux/iov_iter.h:330 lib/iov_iter.c:261 lib/iov_iter.c:272)
[   10.816003][  T158]  devkmsg_emit.constprop.0 (kernel/printk/printk.c:733)
[   10.816007][  T158]  ? vprintk_emit.cold (kernel/printk/printk.c:2449)
[   10.816011][  T158]  ? __kmalloc_noprof (mm/slub.c:5415 mm/slub.c:5439)
[   10.816012][  T158]  ? idr_get_free (??:?)
[   10.816016][  T158]  ? devkmsg_write (./include/linux/slab.h:995 kernel/printk/printk.c:762)
[   10.816019][  T158]  ? _copy_from_iter (./include/linux/instrumented.h:146 lib/iov_iter.c:66 ./include/linux/iov_iter.h:30 ./include/linux/iov_iter.h:302 ./include/linux/iov_iter.h:330 lib/iov_iter.c:261 lib/iov_iter.c:272)
[   10.816022][  T158]  devkmsg_write.cold (kernel/printk/printk.c:796)
[   10.816025][  T158]  ? vprintk_default (kernel/printk/printk.c:2494)
[   10.816026][  T158]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.816028][  T158]  ? vfs_lock_file (./include/linux/fs.h:1348)
[   10.816033][  T158]  ? vprintk_default (kernel/printk/printk.c:2494)
[   10.816035][  T158]  new_sync_write (fs/read_write.c:595)
[   10.816040][  T158]  ? new_sync_read (./include/linux/ioprio.h:41)
[   10.816041][  T158]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   10.816049][  T158]  vfs_write (fs/read_write.c:687)
[   10.816053][  T158]  ksys_write (fs/read_write.c:739)
[   10.816055][  T158]  ? __ia32_sys_read (fs/read_write.c:723)
[   10.816057][  T158]  ? 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)
[   10.816060][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.816063][  T158]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   10.816065][  T158]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   10.816068][  T158]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.816070][  T158] RIP: 0033:0x7f17ea6a254e
[   10.816074][  T158] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   10.816076][  T158] RSP: 002b:00007ffe319a7c90 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[   10.816079][  T158] RAX: ffffffffffffffda RBX: 00007f17ea823580 RCX: 00007f17ea6a254e
[   10.816080][  T158] RDX: 0000000000000025 RSI: 000055d20397aff0 RDI: 0000000000000001
[   10.816081][  T158] RBP: 00007ffe319a7ca0 R08: 0000000000000000 R09: 0000000000000000
[   10.816082][  T158] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000025
[   10.816083][  T158] R13: 0000000000000025 R14: 000055d20397aff0 R15: 0000000000000000
| [   11.856213][  T270] softirqs last disabled at (10407): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   11.856215][  T270] Preemption disabled at:
| [   11.856216][  T270] vprintk_emit (kernel/printk/printk.c:2471)
| [   11.856225][  T270] Tainted: [W]=WARN
[   11.856226][  T270] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.856227][  T270] Call Trace:
[   11.856229][  T270]  <TASK>
[   11.856231][  T270]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   11.856235][  T270]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   11.856237][  T270]  __might_resched.cold (kernel/sched/core.c:9234)
[   11.856242][  T270]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   11.856245][  T270]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   11.856250][  T270]  __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))
[   11.856252][  T270]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.856257][  T270]  ? 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)
[   11.856260][  T270]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.856263][  T270]  put_chars (drivers/char/virtio_console.c:1176)
[   11.856265][  T270]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   11.856266][  T270]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   11.856270][  T270]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   11.856272][  T270]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   11.856277][  T270]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   11.856279][  T270]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.856281][  T270]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.856285][  T270]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   11.856288][  T270]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.856291][  T270]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.856295][  T270]  console_emit_next_record (kernel/printk/printk.c:3183)
[   11.856298][  T270]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   11.856302][  T270]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.856304][  T270]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.856308][  T270]  console_flush_one_record (kernel/printk/printk.c:3268)
[   11.856312][  T270]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   11.856313][  T270]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.856318][  T270]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   11.856321][  T270]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   11.856322][  T270]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.856324][  T270]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   11.856328][  T270]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   11.856329][  T270]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   11.856332][  T270]  vprintk_emit (kernel/printk/printk.c:2479)
[   11.856335][  T270]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   11.856338][  T270]  ? _copy_from_iter (./include/linux/instrumented.h:146 lib/iov_iter.c:66 ./include/linux/iov_iter.h:30 ./include/linux/iov_iter.h:302 ./include/linux/iov_iter.h:330 lib/iov_iter.c:261 lib/iov_iter.c:272)
[   11.856344][  T270]  devkmsg_emit.constprop.0 (kernel/printk/printk.c:733)
[   11.856348][  T270]  ? vprintk_emit.cold (kernel/printk/printk.c:2449)
[   11.856352][  T270]  ? __kmalloc_noprof (mm/slub.c:5415 mm/slub.c:5439)
[   11.856354][  T270]  ? idr_get_free (??:?)
[   11.856358][  T270]  ? devkmsg_write (./include/linux/slab.h:995 kernel/printk/printk.c:762)
[   11.856360][  T270]  ? _copy_from_iter (./include/linux/instrumented.h:146 lib/iov_iter.c:66 ./include/linux/iov_iter.h:30 ./include/linux/iov_iter.h:302 ./include/linux/iov_iter.h:330 lib/iov_iter.c:261 lib/iov_iter.c:272)
[   11.856363][  T270]  devkmsg_write.cold (kernel/printk/printk.c:796)
[   11.856366][  T270]  ? vprintk_default (kernel/printk/printk.c:2494)
[   11.856367][  T270]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.856370][  T270]  ? vfs_lock_file (./include/linux/fs.h:1348)
[   11.856374][  T270]  ? vprintk_default (kernel/printk/printk.c:2494)
[   11.856376][  T270]  new_sync_write (fs/read_write.c:595)
[   11.856381][  T270]  ? new_sync_read (./include/linux/ioprio.h:41)
[   11.856382][  T270]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   11.856390][  T270]  vfs_write (fs/read_write.c:687)
[   11.856394][  T270]  ksys_write (fs/read_write.c:739)
[   11.856397][  T270]  ? __ia32_sys_read (fs/read_write.c:723)
[   11.856399][  T270]  ? 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)
[   11.856401][  T270]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.856404][  T270]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   11.856407][  T270]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   11.856410][  T270]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.856412][  T270] RIP: 0033:0x7f17ea6a254e
[   11.856416][  T270] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   11.856417][  T270] RSP: 002b:00007ffe319a7690 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[   11.856420][  T270] RAX: ffffffffffffffda RBX: 00007f17ea823580 RCX: 00007f17ea6a254e
[   11.856422][  T270] RDX: 0000000000000037 RSI: 000055d20397aff0 RDI: 0000000000000001
[   11.856423][  T270] RBP: 00007ffe319a76a0 R08: 0000000000000000 R09: 0000000000000000
[   11.856424][  T270] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000037
[   11.856425][  T270] R13: 0000000000000037 R14: 000055d20397aff0 R15: 0000000000000000
| [   12.859308][  T158] softirqs last disabled at (584512): restore_fpregs_from_user (./include/linux/bottom_half.h:20 (discriminator 2) ./arch/x86/include/asm/fpu/api.h:69 (discriminator 2) arch/x86/kernel/fpu/signal.c:277 (discriminator 2))
| [   12.859310][  T158] Preemption disabled at:
| [   12.859311][  T158] vprintk_emit (kernel/printk/printk.c:2471)
| [   12.859320][  T158] Tainted: [W]=WARN
[   12.859321][  T158] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.859322][  T158] Call Trace:
[   12.859324][  T158]  <TASK>
[   12.859326][  T158]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   12.859330][  T158]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   12.859332][  T158]  __might_resched.cold (kernel/sched/core.c:9234)
[   12.859337][  T158]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   12.859341][  T158]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   12.859345][  T158]  __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))
[   12.859347][  T158]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.859353][  T158]  ? 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)
[   12.859356][  T158]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.859358][  T158]  put_chars (drivers/char/virtio_console.c:1176)
[   12.859361][  T158]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   12.859362][  T158]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   12.859365][  T158]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   12.859368][  T158]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   12.859372][  T158]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   12.859375][  T158]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.859376][  T158]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.859380][  T158]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   12.859383][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.859386][  T158]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.859390][  T158]  console_emit_next_record (kernel/printk/printk.c:3183)
[   12.859393][  T158]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   12.859397][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.859399][  T158]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.859403][  T158]  console_flush_one_record (kernel/printk/printk.c:3268)
[   12.859407][  T158]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   12.859408][  T158]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.859413][  T158]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   12.859416][  T158]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   12.859417][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.859419][  T158]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   12.859423][  T158]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   12.859424][  T158]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   12.859427][  T158]  vprintk_emit (kernel/printk/printk.c:2479)
[   12.859430][  T158]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   12.859433][  T158]  ? _copy_from_iter (./include/linux/instrumented.h:146 lib/iov_iter.c:66 ./include/linux/iov_iter.h:30 ./include/linux/iov_iter.h:302 ./include/linux/iov_iter.h:330 lib/iov_iter.c:261 lib/iov_iter.c:272)
[   12.859439][  T158]  devkmsg_emit.constprop.0 (kernel/printk/printk.c:733)
[   12.859442][  T158]  ? vprintk_emit.cold (kernel/printk/printk.c:2449)
[   12.859446][  T158]  ? __kmalloc_noprof (mm/slub.c:5415 mm/slub.c:5439)
[   12.859448][  T158]  ? idr_get_free (??:?)
[   12.859452][  T158]  ? devkmsg_write (./include/linux/slab.h:995 kernel/printk/printk.c:762)
[   12.859455][  T158]  ? _copy_from_iter (./include/linux/instrumented.h:146 lib/iov_iter.c:66 ./include/linux/iov_iter.h:30 ./include/linux/iov_iter.h:302 ./include/linux/iov_iter.h:330 lib/iov_iter.c:261 lib/iov_iter.c:272)
[   12.859457][  T158]  devkmsg_write.cold (kernel/printk/printk.c:796)
[   12.859460][  T158]  ? vprintk_default (kernel/printk/printk.c:2494)
[   12.859462][  T158]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.859464][  T158]  ? vfs_lock_file (./include/linux/fs.h:1348)
[   12.859468][  T158]  ? vprintk_default (kernel/printk/printk.c:2494)
[   12.859470][  T158]  new_sync_write (fs/read_write.c:595)
[   12.859475][  T158]  ? new_sync_read (./include/linux/ioprio.h:41)
[   12.859476][  T158]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   12.859484][  T158]  vfs_write (fs/read_write.c:687)
[   12.859488][  T158]  ksys_write (fs/read_write.c:739)
[   12.859491][  T158]  ? __ia32_sys_read (fs/read_write.c:723)
[   12.859492][  T158]  ? 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)
[   12.859495][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.859498][  T158]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   12.859500][  T158]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   12.859504][  T158]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.859506][  T158] RIP: 0033:0x7f17ea6a254e
[   12.859509][  T158] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   12.859511][  T158] RSP: 002b:00007ffe319a7c90 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[   12.859515][  T158] RAX: ffffffffffffffda RBX: 00007f17ea823580 RCX: 00007f17ea6a254e
[   12.859516][  T158] RDX: 0000000000000027 RSI: 000055d20397aff0 RDI: 0000000000000001
[   12.859517][  T158] RBP: 00007ffe319a7ca0 R08: 0000000000000000 R09: 0000000000000000
[   12.859518][  T158] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000027
[   12.859519][  T158] R13: 0000000000000027 R14: 000055d20397aff0 R15: 0000000000000000
| [   13.865508][  T158] softirqs last disabled at (774648): restore_fpregs_from_user (./include/linux/bottom_half.h:20 (discriminator 2) ./arch/x86/include/asm/fpu/api.h:69 (discriminator 2) arch/x86/kernel/fpu/signal.c:277 (discriminator 2))
| [   13.865510][  T158] Preemption disabled at:
| [   13.865511][  T158] vprintk_emit (kernel/printk/printk.c:2471)
| [   13.865523][  T158] Tainted: [W]=WARN
[   13.865524][  T158] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.865526][  T158] Call Trace:
[   13.865527][  T158]  <TASK>
[   13.865529][  T158]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   13.865534][  T158]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   13.865536][  T158]  __might_resched.cold (kernel/sched/core.c:9234)
[   13.865541][  T158]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   13.865544][  T158]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   13.865549][  T158]  __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))
[   13.865551][  T158]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   13.865557][  T158]  ? 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)
[   13.865559][  T158]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   13.865562][  T158]  put_chars (drivers/char/virtio_console.c:1176)
[   13.865564][  T158]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   13.865566][  T158]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   13.865569][  T158]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   13.865572][  T158]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   13.865576][  T158]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   13.865579][  T158]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.865580][  T158]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.865584][  T158]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   13.865587][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.865590][  T158]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   13.865594][  T158]  console_emit_next_record (kernel/printk/printk.c:3183)
[   13.865597][  T158]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   13.865601][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.865604][  T158]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   13.865607][  T158]  console_flush_one_record (kernel/printk/printk.c:3268)
[   13.865611][  T158]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   13.865613][  T158]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.865617][  T158]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   13.865620][  T158]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   13.865622][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.865627][  T158]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   13.865630][  T158]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   13.865632][  T158]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   13.865635][  T158]  vprintk_emit (kernel/printk/printk.c:2479)
[   13.865638][  T158]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   13.865641][  T158]  ? _copy_from_iter (./include/linux/instrumented.h:146 lib/iov_iter.c:66 ./include/linux/iov_iter.h:30 ./include/linux/iov_iter.h:302 ./include/linux/iov_iter.h:330 lib/iov_iter.c:261 lib/iov_iter.c:272)
[   13.865647][  T158]  devkmsg_emit.constprop.0 (kernel/printk/printk.c:733)
[   13.865651][  T158]  ? vprintk_emit.cold (kernel/printk/printk.c:2449)
[   13.865655][  T158]  ? __kmalloc_noprof (mm/slub.c:5415 mm/slub.c:5439)
[   13.865656][  T158]  ? idr_get_free (??:?)
[   13.865660][  T158]  ? devkmsg_write (./include/linux/slab.h:995 kernel/printk/printk.c:762)
[   13.865663][  T158]  ? _copy_from_iter (./include/linux/instrumented.h:146 lib/iov_iter.c:66 ./include/linux/iov_iter.h:30 ./include/linux/iov_iter.h:302 ./include/linux/iov_iter.h:330 lib/iov_iter.c:261 lib/iov_iter.c:272)
[   13.865666][  T158]  devkmsg_write.cold (kernel/printk/printk.c:796)
[   13.865668][  T158]  ? vprintk_default (kernel/printk/printk.c:2494)
[   13.865670][  T158]  ? handle_pte_fault (mm/memory.c:6582)
[   13.865675][  T158]  ? do_numa_page.isra.0 (mm/memory.c:6319 (discriminator 1))
[   13.865677][  T158]  ? vprintk_default (kernel/printk/printk.c:2494)
[   13.865680][  T158]  new_sync_write (fs/read_write.c:595)
[   13.865684][  T158]  ? new_sync_read (./include/linux/ioprio.h:41)
[   13.865686][  T158]  ? lock_vma_under_rcu (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) mm/mmap_lock.c:329 (discriminator 2))
[   13.865694][  T158]  vfs_write (fs/read_write.c:687)
[   13.865698][  T158]  ksys_write (fs/read_write.c:739)
[   13.865701][  T158]  ? __ia32_sys_read (fs/read_write.c:723)
[   13.865703][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.865705][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.865708][  T158]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   13.865711][  T158]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   13.865714][  T158]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   13.865716][  T158] RIP: 0033:0x7f17ea6a254e
[   13.865720][  T158] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   13.865722][  T158] RSP: 002b:00007ffe319a7c90 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[   13.865725][  T158] RAX: ffffffffffffffda RBX: 00007f17ea823580 RCX: 00007f17ea6a254e
[   13.865726][  T158] RDX: 0000000000000027 RSI: 000055d20397aff0 RDI: 0000000000000001
[   13.865727][  T158] RBP: 00007ffe319a7ca0 R08: 0000000000000000 R09: 0000000000000000
[   13.865728][  T158] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000027


Finger prints:
__irq_exit_rcu:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars
restore_fpregs_from_user:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars