======================================
| [   10.807286][  T170] softirqs last disabled at (34709): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   10.807289][  T170] Preemption disabled at:
| [   10.807290][  T170] vprintk_emit (kernel/printk/printk.c:2471)
| [   10.807299][  T170] Tainted: [W]=WARN
[   10.807300][  T170] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.807302][  T170] Call Trace:
[   10.807304][  T170]  <TASK>
[   10.807305][  T170]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   10.807311][  T170]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   10.807313][  T170]  __might_resched.cold (kernel/sched/core.c:9234)
[   10.807318][  T170]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   10.807322][  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)
[   10.807327][  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))
[   10.807329][  T170]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.807335][  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)
[   10.807337][  T170]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.807340][  T170]  put_chars (drivers/char/virtio_console.c:1176)
[   10.807343][  T170]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   10.807346][  T170]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   10.807351][  T170]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   10.807357][  T170]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   10.807360][  T170]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.807363][  T170]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.807367][  T170]  console_emit_next_record (kernel/printk/printk.c:3183)
[   10.807371][  T170]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   10.807375][  T170]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.807377][  T170]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.807381][  T170]  console_flush_one_record (kernel/printk/printk.c:3268)
[   10.807385][  T170]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   10.807386][  T170]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.807391][  T170]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   10.807394][  T170]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   10.807395][  T170]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.807397][  T170]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   10.807401][  T170]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   10.807402][  T170]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   10.807405][  T170]  vprintk_emit (kernel/printk/printk.c:2479)
[   10.807409][  T170]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   10.807411][  T170]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   10.807415][  T170]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   10.807416][  T170]  ? fast_dput (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) fs/dcache.c:948 (discriminator 2))
[   10.807421][  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
[   10.807429][  T170]  _printk (kernel/printk/printk.c:2504)
[   10.807433][  T170]  ? snapshot_read.cold (user.c:?)
[   10.807436][  T170]  ? __up_write (kernel/locking/rwsem.c:1422 (discriminator 1))
[   10.807439][  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
[   10.807443][  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)
[   10.807448][  T170] init_netconsole (drivers/net/netconsole.c:1286) netconsole
[   10.807451][  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
[   10.807458][  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
[   10.807461][  T170]  do_one_initcall (init/main.c:1357)
[   10.807464][  T170]  ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10)
[   10.807469][  T170]  ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1))
[   10.807472][  T170]  ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178)
[   10.807477][  T170]  do_init_module (kernel/module/main.c:3117)
[   10.807481][  T170]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   10.807485][  T170]  ? free_module (./include/trace/events/module.h:50 (discriminator 19))
[   10.807488][  T170]  ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792)
[   10.807492][  T170]  load_module (kernel/module/main.c:3593)
[   10.807498][  T170]  ? layout_and_allocate.isra.0 (kernel/module/main.c:3016)
[   10.807502][  T170]  ? __ia32_sys_fsconfig (??:?)
[   10.807505][  T170]  ? ovl_real_file (fs/overlayfs/file.c:195)
[   10.807513][  T170]  ? backing_file_read_iter (fs/backing-file.c:211)
[   10.807517][  T170]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   10.807521][  T170]  init_module_from_file (kernel/module/main.c:3790)
[   10.807525][  T170]  ? __do_sys_init_module (kernel/module/main.c:3664)
[   10.807533][  T170]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   10.807536][  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)
[   10.807539][  T170]  idempotent_init_module (kernel/module/main.c:3802)
[   10.807542][  T170]  ? init_module_from_file (kernel/module/main.c:3791)
[   10.807549][  T170]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.807551][  T170]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   10.807557][  T170]  __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812)
[   10.807558][  T170]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   10.807563][  T170]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   10.807565][  T170]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   10.807568][  T170]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.807570][  T170] RIP: 0033:0x7fc50aecf37d
[   10.807574][  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
[   10.807576][  T170] RSP: 002b:00007fff04857228 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[   10.807578][  T170] RAX: ffffffffffffffda RBX: 0000564e021dd700 RCX: 00007fc50aecf37d
[   10.807580][  T170] RDX: 0000000000000000 RSI: 0000564ddefc8ffd RDI: 0000000000000005
[   10.807581][  T170] RBP: 00007fff048572c0 R08: 0000000000000000 R09: 0000000000000000
[   10.807581][  T170] R10: 0000000000000000 R11: 0000000000000246 R12: 0000564ddefc8ffd
[   10.807582][  T170] R13: 0000564e021dd810 R14: 0000000000040000 R15: 0000000000000000
| [   12.991521][  T158] softirqs last disabled at (123529): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   12.991525][  T158] Preemption disabled at:
| [   12.991526][  T158] vprintk_emit (kernel/printk/printk.c:2471)
| [   12.991536][  T158] Tainted: [W]=WARN
[   12.991537][  T158] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.991539][  T158] Call Trace:
[   12.991541][  T158]  <TASK>
[   12.991543][  T158]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   12.991548][  T158]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   12.991551][  T158]  __might_resched.cold (kernel/sched/core.c:9234)
[   12.991555][  T158]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   12.991560][  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)
[   12.991564][  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))
[   12.991567][  T158]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.991573][  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)
[   12.991575][  T158]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.991579][  T158]  put_chars (drivers/char/virtio_console.c:1176)
[   12.991582][  T158]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   12.991583][  T158]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   12.991586][  T158]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   12.991590][  T158]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   12.991594][  T158]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   12.991597][  T158]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.991599][  T158]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.991603][  T158]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   12.991606][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.991609][  T158]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.991613][  T158]  console_emit_next_record (kernel/printk/printk.c:3183)
[   12.991617][  T158]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   12.991621][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.991623][  T158]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.991627][  T158]  console_flush_one_record (kernel/printk/printk.c:3268)
[   12.991631][  T158]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   12.991633][  T158]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.991638][  T158]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   12.991640][  T158]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   12.991642][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.991644][  T158]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   12.991648][  T158]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   12.991649][  T158]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   12.991653][  T158]  vprintk_emit (kernel/printk/printk.c:2479)
[   12.991656][  T158]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   12.991658][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.991661][  T158]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   12.991666][  T158]  devkmsg_emit.constprop.0 (kernel/printk/printk.c:733)
[   12.991671][  T158]  ? vprintk_emit.cold (kernel/printk/printk.c:2449)
[   12.991675][  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)
[   12.991680][  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)
[   12.991683][  T158]  devkmsg_write.cold (kernel/printk/printk.c:796)
[   12.991686][  T158]  ? vprintk_default (kernel/printk/printk.c:2494)
[   12.991687][  T158]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.991690][  T158]  ? vfs_lock_file (./include/linux/fs.h:1348)
[   12.991694][  T158]  ? vprintk_default (kernel/printk/printk.c:2494)
[   12.991697][  T158]  new_sync_write (fs/read_write.c:595)
[   12.991702][  T158]  ? new_sync_read (./include/linux/ioprio.h:41)
[   12.991703][  T158]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   12.991711][  T158]  vfs_write (fs/read_write.c:687)
[   12.991716][  T158]  ksys_write (fs/read_write.c:739)
[   12.991719][  T158]  ? __ia32_sys_read (fs/read_write.c:723)
[   12.991721][  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)
[   12.991724][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.991728][  T158]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   12.991731][  T158]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   12.991735][  T158]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.991737][  T158] RIP: 0033:0x7f32df5fc54e
[   12.991742][  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
[   12.991744][  T158] RSP: 002b:00007ffee56c6240 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[   12.991747][  T158] RAX: ffffffffffffffda RBX: 00007f32df77d580 RCX: 00007f32df5fc54e
[   12.991748][  T158] RDX: 0000000000000025 RSI: 0000563874765ff0 RDI: 0000000000000001
[   12.991750][  T158] RBP: 00007ffee56c6250 R08: 0000000000000000 R09: 0000000000000000
[   12.991751][  T158] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000025
[   12.991752][  T158] R13: 0000000000000025 R14: 0000563874765ff0 R15: 0000000000000000
| [   13.992593][  T158] softirqs last disabled at (342468): 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))
| [   13.992595][  T158] Preemption disabled at:
| [   13.992596][  T158] vprintk_emit (kernel/printk/printk.c:2471)
| [   13.992605][  T158] Tainted: [W]=WARN
[   13.992606][  T158] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.992608][  T158] Call Trace:
[   13.992610][  T158]  <TASK>
[   13.992611][  T158]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   13.992617][  T158]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   13.992619][  T158]  __might_resched.cold (kernel/sched/core.c:9234)
[   13.992624][  T158]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   13.992627][  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)
[   13.992632][  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))
[   13.992634][  T158]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   13.992640][  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)
[   13.992643][  T158]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   13.992646][  T158]  put_chars (drivers/char/virtio_console.c:1176)
[   13.992649][  T158]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   13.992650][  T158]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   13.992654][  T158]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   13.992657][  T158]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   13.992661][  T158]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   13.992664][  T158]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.992666][  T158]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.992670][  T158]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   13.992673][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.992676][  T158]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   13.992680][  T158]  console_emit_next_record (kernel/printk/printk.c:3183)
[   13.992684][  T158]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   13.992688][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.992690][  T158]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   13.992694][  T158]  console_flush_one_record (kernel/printk/printk.c:3268)
[   13.992698][  T158]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   13.992699][  T158]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.992704][  T158]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   13.992707][  T158]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   13.992708][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.992711][  T158]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   13.992714][  T158]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   13.992716][  T158]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   13.992719][  T158]  vprintk_emit (kernel/printk/printk.c:2479)
[   13.992723][  T158]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   13.992726][  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)
[   13.992732][  T158]  devkmsg_emit.constprop.0 (kernel/printk/printk.c:733)
[   13.992736][  T158]  ? vprintk_emit.cold (kernel/printk/printk.c:2449)
[   13.992740][  T158]  ? __kmalloc_noprof (mm/slub.c:5415 mm/slub.c:5439)
[   13.992742][  T158]  ? idr_get_free (??:?)
[   13.992746][  T158]  ? devkmsg_write (./include/linux/slab.h:995 kernel/printk/printk.c:762)
[   13.992749][  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)
[   13.992752][  T158]  devkmsg_write.cold (kernel/printk/printk.c:796)
[   13.992755][  T158]  ? vprintk_default (kernel/printk/printk.c:2494)
[   13.992757][  T158]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.992759][  T158]  ? vfs_lock_file (./include/linux/fs.h:1348)
[   13.992763][  T158]  ? vprintk_default (kernel/printk/printk.c:2494)
[   13.992766][  T158]  new_sync_write (fs/read_write.c:595)
[   13.992771][  T158]  ? new_sync_read (./include/linux/ioprio.h:41)
[   13.992773][  T158]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   13.992781][  T158]  vfs_write (fs/read_write.c:687)
[   13.992785][  T158]  ksys_write (fs/read_write.c:739)
[   13.992788][  T158]  ? __ia32_sys_read (fs/read_write.c:723)
[   13.992790][  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)
[   13.992793][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.992797][  T158]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   13.992799][  T158]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   13.992802][  T158]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   13.992805][  T158] RIP: 0033:0x7f32df5fc54e
[   13.992809][  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
[   13.992811][  T158] RSP: 002b:00007ffee56c6240 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[   13.992814][  T158] RAX: ffffffffffffffda RBX: 00007f32df77d580 RCX: 00007f32df5fc54e
[   13.992816][  T158] RDX: 0000000000000026 RSI: 0000563874765ff0 RDI: 0000000000000001
[   13.992817][  T158] RBP: 00007ffee56c6250 R08: 0000000000000000 R09: 0000000000000000
[   13.992818][  T158] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000026
[   13.992819][  T158] R13: 0000000000000026 R14: 0000563874765ff0 R15: 0000000000000000
| [   14.992623][  T158] softirqs last disabled at (463361): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   14.992626][  T158] Preemption disabled at:
| [   14.992627][  T158] vprintk_emit (kernel/printk/printk.c:2471)
| [   14.992637][  T158] Tainted: [W]=WARN
[   14.992639][  T158] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   14.992640][  T158] Call Trace:
[   14.992642][  T158]  <TASK>
[   14.992644][  T158]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   14.992650][  T158]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   14.992652][  T158]  __might_resched.cold (kernel/sched/core.c:9234)
[   14.992657][  T158]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   14.992661][  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)
[   14.992666][  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))
[   14.992668][  T158]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   14.992675][  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)
[   14.992677][  T158]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   14.992680][  T158]  put_chars (drivers/char/virtio_console.c:1176)
[   14.992683][  T158]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   14.992685][  T158]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   14.992688][  T158]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   14.992691][  T158]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   14.992696][  T158]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   14.992699][  T158]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.992700][  T158]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.992704][  T158]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   14.992708][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.992711][  T158]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   14.992715][  T158]  console_emit_next_record (kernel/printk/printk.c:3183)
[   14.992718][  T158]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   14.992723][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.992725][  T158]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   14.992729][  T158]  console_flush_one_record (kernel/printk/printk.c:3268)
[   14.992733][  T158]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   14.992735][  T158]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.992740][  T158]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   14.992742][  T158]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   14.992744][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.992746][  T158]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   14.992750][  T158]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   14.992752][  T158]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   14.992755][  T158]  vprintk_emit (kernel/printk/printk.c:2479)
[   14.992758][  T158]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   14.992762][  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)
[   14.992768][  T158]  devkmsg_emit.constprop.0 (kernel/printk/printk.c:733)
[   14.992772][  T158]  ? vprintk_emit.cold (kernel/printk/printk.c:2449)
[   14.992776][  T158]  ? __kmalloc_noprof (mm/slub.c:5415 mm/slub.c:5439)
[   14.992777][  T158]  ? idr_get_free (??:?)
[   14.992781][  T158]  ? devkmsg_write (./include/linux/slab.h:995 kernel/printk/printk.c:762)
[   14.992784][  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)
[   14.992787][  T158]  devkmsg_write.cold (kernel/printk/printk.c:796)
[   14.992790][  T158]  ? vprintk_default (kernel/printk/printk.c:2494)
[   14.992792][  T158]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.992794][  T158]  ? vfs_lock_file (./include/linux/fs.h:1348)
[   14.992798][  T158]  ? vprintk_default (kernel/printk/printk.c:2494)
[   14.992801][  T158]  new_sync_write (fs/read_write.c:595)
[   14.992806][  T158]  ? new_sync_read (./include/linux/ioprio.h:41)
[   14.992808][  T158]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   14.992816][  T158]  vfs_write (fs/read_write.c:687)
[   14.992820][  T158]  ksys_write (fs/read_write.c:739)
[   14.992823][  T158]  ? __ia32_sys_read (fs/read_write.c:723)
[   14.992825][  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)
[   14.992828][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.992831][  T158]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   14.992834][  T158]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   14.992837][  T158]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   14.992840][  T158] RIP: 0033:0x7f32df5fc54e
[   14.992844][  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
[   14.992846][  T158] RSP: 002b:00007ffee56c6240 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[   14.992849][  T158] RAX: ffffffffffffffda RBX: 00007f32df77d580 RCX: 00007f32df5fc54e
[   14.992850][  T158] RDX: 0000000000000026 RSI: 0000563874765ff0 RDI: 0000000000000001
[   14.992851][  T158] RBP: 00007ffee56c6250 R08: 0000000000000000 R09: 0000000000000000
[   14.992852][  T158] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000026
[   14.992854][  T158] R13: 0000000000000026 R14: 0000563874765ff0 R15: 0000000000000000
| [   15.992616][  T158] softirqs last disabled at (598192): 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))
| [   15.992620][  T158] Preemption disabled at:
| [   15.992621][  T158] vprintk_emit (kernel/printk/printk.c:2471)
| [   15.992633][  T158] Tainted: [W]=WARN
[   15.992635][  T158] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.992637][  T158] Call Trace:
[   15.992640][  T158]  <TASK>
[   15.992643][  T158]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   15.992650][  T158]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   15.992653][  T158]  __might_resched.cold (kernel/sched/core.c:9234)
[   15.992660][  T158]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   15.992666][  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)
[   15.992672][  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))
[   15.992675][  T158]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   15.992681][  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)
[   15.992684][  T158]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   15.992687][  T158]  put_chars (drivers/char/virtio_console.c:1176)
[   15.992689][  T158]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   15.992691][  T158]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   15.992694][  T158]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   15.992698][  T158]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   15.992702][  T158]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   15.992705][  T158]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.992706][  T158]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.992710][  T158]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   15.992713][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.992717][  T158]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   15.992721][  T158]  console_emit_next_record (kernel/printk/printk.c:3183)
[   15.992725][  T158]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   15.992730][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.992732][  T158]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   15.992736][  T158]  console_flush_one_record (kernel/printk/printk.c:3268)
[   15.992740][  T158]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   15.992742][  T158]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.992747][  T158]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   15.992750][  T158]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   15.992752][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.992754][  T158]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   15.992757][  T158]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   15.992759][  T158]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   15.992762][  T158]  vprintk_emit (kernel/printk/printk.c:2479)
[   15.992766][  T158]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   15.992769][  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)
[   15.992776][  T158]  devkmsg_emit.constprop.0 (kernel/printk/printk.c:733)
[   15.992780][  T158]  ? vprintk_emit.cold (kernel/printk/printk.c:2449)
[   15.992784][  T158]  ? __kmalloc_noprof (mm/slub.c:5415 mm/slub.c:5439)
[   15.992786][  T158]  ? idr_get_free (??:?)
[   15.992790][  T158]  ? devkmsg_write (./include/linux/slab.h:995 kernel/printk/printk.c:762)
[   15.992793][  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)
[   15.992796][  T158]  devkmsg_write.cold (kernel/printk/printk.c:796)
[   15.992799][  T158]  ? vprintk_default (kernel/printk/printk.c:2494)
[   15.992800][  T158]  ? handle_pte_fault (mm/memory.c:6582)
[   15.992806][  T158]  ? do_numa_page.isra.0 (mm/memory.c:6319 (discriminator 1))
[   15.992810][  T158]  ? vprintk_default (kernel/printk/printk.c:2494)
[   15.992813][  T158]  new_sync_write (fs/read_write.c:595)
[   15.992819][  T158]  ? new_sync_read (./include/linux/ioprio.h:41)
[   15.992821][  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))
[   15.992829][  T158]  vfs_write (fs/read_write.c:687)
[   15.992834][  T158]  ksys_write (fs/read_write.c:739)
[   15.992837][  T158]  ? __ia32_sys_read (fs/read_write.c:723)
[   15.992839][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.992842][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.992845][  T158]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   15.992848][  T158]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   15.992851][  T158]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   15.992854][  T158] RIP: 0033:0x7f32df5fc54e
[   15.992858][  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
[   15.992860][  T158] RSP: 002b:00007ffee56c6240 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[   15.992863][  T158] RAX: ffffffffffffffda RBX: 00007f32df77d580 RCX: 00007f32df5fc54e
[   15.992865][  T158] RDX: 0000000000000027 RSI: 0000563874765ff0 RDI: 0000000000000001
[   15.992866][  T158] RBP: 00007ffee56c6250 R08: 0000000000000000 R09: 0000000000000000
[   15.992867][  T158] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000027
[   15.992868][  T158] R13: 0000000000000027 R14: 0000563874765ff0 R15: 0000000000000000
| [   17.070938][  T431] softirqs last disabled at (15226): 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))
| [   17.070941][  T431] Preemption disabled at:
| [   17.070942][  T431] vprintk_emit (kernel/printk/printk.c:2471)
| [   17.070952][  T431] Tainted: [W]=WARN
[   17.070953][  T431] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   17.070955][  T431] Call Trace:
[   17.070956][  T431]  <TASK>
[   17.070958][  T431]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   17.070963][  T431]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   17.070965][  T431]  __might_resched.cold (kernel/sched/core.c:9234)
[   17.070970][  T431]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   17.070974][  T431]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   17.070979][  T431]  __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))
[   17.070981][  T431]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   17.070987][  T431]  ? 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)
[   17.070989][  T431]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   17.070993][  T431]  put_chars (drivers/char/virtio_console.c:1176)
[   17.070996][  T431]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   17.070997][  T431]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   17.071001][  T431]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   17.071004][  T431]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   17.071008][  T431]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   17.071011][  T431]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   17.071013][  T431]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   17.071017][  T431]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   17.071020][  T431]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.071023][  T431]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   17.071027][  T431]  console_emit_next_record (kernel/printk/printk.c:3183)
[   17.071031][  T431]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   17.071035][  T431]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.071038][  T431]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   17.071042][  T431]  console_flush_one_record (kernel/printk/printk.c:3268)
[   17.071046][  T431]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   17.071048][  T431]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   17.071053][  T431]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   17.071055][  T431]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   17.071057][  T431]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.071059][  T431]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   17.071063][  T431]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   17.071065][  T431]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   17.071068][  T431]  vprintk_emit (kernel/printk/printk.c:2479)
[   17.071071][  T431]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   17.071075][  T431]  ? _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)
[   17.071080][  T431]  devkmsg_emit.constprop.0 (kernel/printk/printk.c:733)
[   17.071085][  T431]  ? vprintk_emit.cold (kernel/printk/printk.c:2449)
[   17.071089][  T431]  ? __kmalloc_noprof (mm/slub.c:5415 mm/slub.c:5439)
[   17.071090][  T431]  ? idr_get_free (??:?)
[   17.071094][  T431]  ? devkmsg_write (./include/linux/slab.h:995 kernel/printk/printk.c:762)
[   17.071097][  T431]  ? _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)
[   17.071100][  T431]  devkmsg_write.cold (kernel/printk/printk.c:796)
[   17.071103][  T431]  ? vprintk_default (kernel/printk/printk.c:2494)
[   17.071105][  T431]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   17.071107][  T431]  ? vfs_lock_file (./include/linux/fs.h:1348)
[   17.071112][  T431]  ? vprintk_default (kernel/printk/printk.c:2494)
[   17.071115][  T431]  new_sync_write (fs/read_write.c:595)
[   17.071120][  T431]  ? new_sync_read (./include/linux/ioprio.h:41)
[   17.071121][  T431]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   17.071130][  T431]  vfs_write (fs/read_write.c:687)
[   17.071134][  T431]  ksys_write (fs/read_write.c:739)
[   17.071137][  T431]  ? __ia32_sys_read (fs/read_write.c:723)
[   17.071139][  T431]  ? 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)
[   17.071141][  T431]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.071145][  T431]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   17.071147][  T431]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   17.071151][  T431]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   17.071153][  T431] RIP: 0033:0x7f32df5fc54e
[   17.071157][  T431] 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
[   17.071159][  T431] RSP: 002b:00007ffee56c5c40 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[   17.071163][  T431] RAX: ffffffffffffffda RBX: 00007f32df77d580 RCX: 00007f32df5fc54e
[   17.071164][  T431] RDX: 0000000000000037 RSI: 0000563874765ff0 RDI: 0000000000000001
[   17.071165][  T431] RBP: 00007ffee56c5c50 R08: 0000000000000000 R09: 0000000000000000
[   17.071166][  T431] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000037


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