======================================
| [    9.927868][  T175] softirqs last disabled at (50309): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [    9.927871][  T175] Preemption disabled at:
| [    9.927871][  T175] vprintk_emit (kernel/printk/printk.c:2471)
| [    9.927880][  T175] Tainted: [W]=WARN
[    9.927881][  T175] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.927883][  T175] Call Trace:
[    9.927884][  T175]  <TASK>
[    9.927886][  T175]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[    9.927892][  T175]  ? vprintk_emit (kernel/printk/printk.c:2471)
[    9.927894][  T175]  __might_resched.cold (kernel/sched/core.c:9234)
[    9.927898][  T175]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[    9.927902][  T175]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[    9.927908][  T175]  __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))
[    9.927910][  T175]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[    9.927917][  T175]  ? 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)
[    9.927920][  T175]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[    9.927923][  T175]  put_chars (drivers/char/virtio_console.c:1176)
[    9.927926][  T175]  ? __send_to_port (drivers/char/virtio_console.c:654)
[    9.927930][  T175]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[    9.927935][  T175]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[    9.927941][  T175]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[    9.927945][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.927949][  T175]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[    9.927955][  T175]  console_emit_next_record (kernel/printk/printk.c:3183)
[    9.927960][  T175]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[    9.927964][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.927966][  T175]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[    9.927970][  T175]  console_flush_one_record (kernel/printk/printk.c:3268)
[    9.927974][  T175]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[    9.927976][  T175]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[    9.927981][  T175]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[    9.927984][  T175]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[    9.927986][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.927988][  T175]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[    9.927991][  T175]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[    9.927993][  T175]  ? vprintk_emit (kernel/printk/printk.c:2478)
[    9.927996][  T175]  vprintk_emit (kernel/printk/printk.c:2479)
[    9.927999][  T175]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[    9.928000][  T175]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[    9.928003][  T175]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[    9.928005][  T175]  ? fast_dput (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) fs/dcache.c:948 (discriminator 2))
[    9.928009][  T175]  ? 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
[    9.928013][  T175]  _printk (kernel/printk/printk.c:2504)
[    9.928016][  T175]  ? snapshot_read.cold (user.c:?)
[    9.928019][  T175]  ? __up_write (kernel/locking/rwsem.c:1422 (discriminator 1))
[    9.928022][  T175]  ? 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
[    9.928026][  T175]  ? 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)
[    9.928030][  T175] init_netconsole (drivers/net/netconsole.c:1286) netconsole
[    9.928033][  T175]  ? 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
[    9.928040][  T175]  ? 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
[    9.928042][  T175]  do_one_initcall (init/main.c:1357)
[    9.928045][  T175]  ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10)
[    9.928050][  T175]  ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1))
[    9.928052][  T175]  ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178)
[    9.928057][  T175]  do_init_module (kernel/module/main.c:3117)
[    9.928060][  T175]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[    9.928064][  T175]  ? free_module (./include/trace/events/module.h:50 (discriminator 19))
[    9.928066][  T175]  ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792)
[    9.928070][  T175]  load_module (kernel/module/main.c:3593)
[    9.928077][  T175]  ? layout_and_allocate.isra.0 (kernel/module/main.c:3016)
[    9.928080][  T175]  ? __ia32_sys_fsconfig (??:?)
[    9.928082][  T175]  ? add_chain_cache (kernel/locking/lockdep.c:3782)
[    9.928088][  T175]  init_module_from_file (kernel/module/main.c:3790)
[    9.928090][  T175]  ? __do_sys_init_module (kernel/module/main.c:3664)
[    9.928097][  T175]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[    9.928101][  T175]  ? 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)
[    9.928104][  T175]  idempotent_init_module (kernel/module/main.c:3802)
[    9.928107][  T175]  ? init_module_from_file (kernel/module/main.c:3791)
[    9.928112][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.928114][  T175]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[    9.928119][  T175]  __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812)
[    9.928121][  T175]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[    9.928125][  T175]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[    9.928128][  T175]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[    9.928130][  T175]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.928132][  T175] RIP: 0033:0x7fa0c14d437d
[    9.928136][  T175] 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
[    9.928138][  T175] RSP: 002b:00007ffc6fa2a028 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[    9.928140][  T175] RAX: ffffffffffffffda RBX: 000056142cb5b700 RCX: 00007fa0c14d437d
[    9.928141][  T175] RDX: 0000000000000000 RSI: 00005613f2f03ffd RDI: 0000000000000005
[    9.928142][  T175] RBP: 00007ffc6fa2a0c0 R08: 0000000000000000 R09: 0000000000000000
[    9.928143][  T175] R10: 0000000000000000 R11: 0000000000000246 R12: 00005613f2f03ffd
[    9.928144][  T175] R13: 000056142cb5b810 R14: 0000000000040000 R15: 0000000000000000
| [   11.431014][  T174] softirqs last disabled at (437255): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   11.431017][  T174] Preemption disabled at:
| [   11.431017][  T174] vprintk_emit (kernel/printk/printk.c:2471)
| [   11.431026][  T174] Tainted: [W]=WARN
[   11.431027][  T174] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.431029][  T174] Call Trace:
[   11.431031][  T174]  <TASK>
[   11.431033][  T174]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   11.431039][  T174]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   11.431041][  T174]  __might_resched.cold (kernel/sched/core.c:9234)
[   11.431046][  T174]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   11.431050][  T174]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   11.431056][  T174]  __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))
[   11.431058][  T174]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.431065][  T174]  ? 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)
[   11.431068][  T174]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.431071][  T174]  put_chars (drivers/char/virtio_console.c:1176)
[   11.431075][  T174]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   11.431076][  T174]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   11.431081][  T174]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   11.431086][  T174]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   11.431089][  T174]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.431091][  T174]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.431096][  T174]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   11.431100][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.431103][  T174]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.431108][  T174]  console_emit_next_record (kernel/printk/printk.c:3183)
[   11.431112][  T174]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   11.431117][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.431119][  T174]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.431123][  T174]  console_flush_one_record (kernel/printk/printk.c:3268)
[   11.431128][  T174]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   11.431130][  T174]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.431136][  T174]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   11.431139][  T174]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   11.431141][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.431143][  T174]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   11.431147][  T174]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   11.431149][  T174]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   11.431152][  T174]  vprintk_emit (kernel/printk/printk.c:2479)
[   11.431156][  T174]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   11.431162][  T174]  _printk (kernel/printk/printk.c:2504)
[   11.431165][  T174]  ? snapshot_read.cold (user.c:?)
[   11.431169][  T174]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   11.431173][  T174]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   11.431179][  T174]  register_console (kernel/printk/printk.c:4212 (discriminator 7))
[   11.431182][  T174]  ? get_init_console_seq.constprop.0.isra.0 (kernel/printk/printk.c:4018)
[   11.431184][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.431189][  T174] enabled_store (drivers/net/netconsole.c:1039) netconsole
[   11.431192][  T174]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   11.431196][  T174]  ? netconsole_write_ext (drivers/net/netconsole.c:2504) netconsole
[   11.431198][  T174]  ? down_write_killable_nested (./arch/x86/include/asm/atomic64_64.h:20)
[   11.431201][  T174]  ? __kmalloc_cache_noprof (mm/slub.c:4986 (discriminator 1) mm/slub.c:5559 (discriminator 1))
[   11.431203][  T174]  ? configfs_write_iter (./include/linux/slab.h:991 (discriminator 1) fs/configfs/file.c:187 (discriminator 1) fs/configfs/file.c:227 (discriminator 1))
[   11.431208][  T174]  ? netconsole_write_ext (drivers/net/netconsole.c:2504) netconsole
[   11.431210][  T174]  configfs_write_iter (fs/configfs/file.c:207 fs/configfs/file.c:229)
[   11.431212][  T174]  ? configfs_bin_write_iter (fs/configfs/file.c:287 (discriminator 1))
[   11.431215][  T174]  new_sync_write (fs/read_write.c:595)
[   11.431219][  T174]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.431222][  T174]  ? new_sync_read (./include/linux/ioprio.h:41)
[   11.431225][  T174]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.431227][  T174]  ? ksys_write (fs/read_write.c:739)
[   11.431234][  T174]  vfs_write (fs/read_write.c:687)
[   11.431239][  T174]  ksys_write (fs/read_write.c:739)
[   11.431242][  T174]  ? __ia32_sys_read (fs/read_write.c:723)
[   11.431245][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.431248][  T174]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   11.431251][  T174]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   11.431254][  T174]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.431256][  T174] RIP: 0033:0x7fadc83fc312
[   11.431260][  T174] Code: 08 0f 85 71 41 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 f3 0f 1e fa 55 bf 01 00
All code
========
   0:	08 0f                	or     %cl,(%rdi)
   2:	85 71 41             	test   %esi,0x41(%rcx)
   5:	ff                   	(bad)
   6:	ff 49 89             	decl   -0x77(%rcx)
   9:	fb                   	sti
   a:	48 89 f0             	mov    %rsi,%rax
   d:	48 89 d7             	mov    %rdx,%rdi
  10:	48 89 ce             	mov    %rcx,%rsi
  13:	4c 89 c2             	mov    %r8,%rdx
  16:	4d 89 ca             	mov    %r9,%r10
  19:	4c 8b 44 24 08       	mov    0x8(%rsp),%r8
  1e:	4c 8b 4c 24 10       	mov    0x10(%rsp),%r9
  23:	4c 89 5c 24 08       	mov    %r11,0x8(%rsp)
  28:	0f 05                	syscall
  2a:*	c3                   	ret		<-- trapping instruction
  2b:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  32:	00 00 00 
  35:	0f 1f 00             	nopl   (%rax)
  38:	f3 0f 1e fa          	endbr64
  3c:	55                   	push   %rbp
  3d:	bf                   	.byte 0xbf
  3e:	01 00                	add    %eax,(%rax)

Code starting with the faulting instruction
===========================================
   0:	c3                   	ret
   1:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
   8:	00 00 00 
   b:	0f 1f 00             	nopl   (%rax)
   e:	f3 0f 1e fa          	endbr64
  12:	55                   	push   %rbp
  13:	bf                   	.byte 0xbf
  14:	01 00                	add    %eax,(%rax)
[   11.431262][  T174] RSP: 002b:00007fffe96cb018 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   11.431265][  T174] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fadc83fc312
[   11.431266][  T174] RDX: 0000000000000001 RSI: 00005581b0406f10 RDI: 0000000000000010
[   11.431267][  T174] RBP: 00007fffe96cb040 R08: 0000000000000000 R09: 0000000000000000
[   11.431268][  T174] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fadc8269390
[   11.431269][  T174] R13: 00005581b0406f10 R14: 0000000000000010 R15: 00007fadc81f50d0
| [   12.430903][  T174] softirqs last disabled at (455831): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   12.430906][  T174] Preemption disabled at:
| [   12.430907][  T174] vprintk_emit (kernel/printk/printk.c:2471)
| [   12.430916][  T174] Tainted: [W]=WARN
[   12.430917][  T174] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.430919][  T174] Call Trace:
[   12.430921][  T174]  <TASK>
[   12.430923][  T174]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   12.430929][  T174]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   12.430931][  T174]  __might_resched.cold (kernel/sched/core.c:9234)
[   12.430936][  T174]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   12.430940][  T174]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   12.430948][  T174]  __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))
[   12.430952][  T174]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.430960][  T174]  ? 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)
[   12.430963][  T174]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.430967][  T174]  put_chars (drivers/char/virtio_console.c:1176)
[   12.430970][  T174]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   12.430972][  T174]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   12.430976][  T174]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   12.430980][  T174]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   12.430985][  T174]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   12.430988][  T174]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.430990][  T174]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.430995][  T174]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   12.430999][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.431001][  T174]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.431006][  T174]  console_emit_next_record (kernel/printk/printk.c:3183)
[   12.431010][  T174]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   12.431015][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.431017][  T174]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.431021][  T174]  console_flush_one_record (kernel/printk/printk.c:3268)
[   12.431026][  T174]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   12.431028][  T174]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.431034][  T174]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   12.431037][  T174]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   12.431040][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.431042][  T174]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   12.431046][  T174]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   12.431048][  T174]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   12.431051][  T174]  vprintk_emit (kernel/printk/printk.c:2479)
[   12.431054][  T174]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   12.431056][  T174]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   12.431058][  T174]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   12.431060][  T174]  ? enabled_store (./include/linux/console.h:573 drivers/net/netconsole.c:1037) netconsole
[   12.431063][  T174]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.431067][  T174]  _printk (kernel/printk/printk.c:2504)
[   12.431071][  T174]  ? snapshot_read.cold (user.c:?)
[   12.431074][  T174]  ? __mutex_unlock_slowpath (./include/linux/preempt.h:500 kernel/locking/mutex.c:999)
[   12.431078][  T174]  ? __mutex_unlock_slowpath (./include/linux/preempt.h:500 (discriminator 1) kernel/locking/mutex.c:999 (discriminator 1))
[   12.431083][  T174]  ? __mutex_unlock_slowpath (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:4480 kernel/locking/mutex.c:1021)
[   12.431087][  T174] netconsole_print_banner (drivers/net/netconsole.c:729 (discriminator 1)) netconsole
[   12.431091][  T174] enabled_store.cold (drivers/net/netconsole.c:1054) netconsole
[   12.431094][  T174]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   12.431098][  T174]  ? netconsole_write_ext (drivers/net/netconsole.c:2504) netconsole
[   12.431100][  T174]  ? down_write_killable_nested (./arch/x86/include/asm/atomic64_64.h:20)
[   12.431102][  T174]  ? __kmalloc_cache_noprof (mm/slub.c:4986 (discriminator 1) mm/slub.c:5559 (discriminator 1))
[   12.431105][  T174]  ? configfs_write_iter (./include/linux/slab.h:991 (discriminator 1) fs/configfs/file.c:187 (discriminator 1) fs/configfs/file.c:227 (discriminator 1))
[   12.431109][  T174]  ? netconsole_write_ext (drivers/net/netconsole.c:2504) netconsole
[   12.431111][  T174]  configfs_write_iter (fs/configfs/file.c:207 fs/configfs/file.c:229)
[   12.431113][  T174]  ? configfs_bin_write_iter (fs/configfs/file.c:287 (discriminator 1))
[   12.431116][  T174]  new_sync_write (fs/read_write.c:595)
[   12.431120][  T174]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.431123][  T174]  ? new_sync_read (./include/linux/ioprio.h:41)
[   12.431127][  T174]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.431129][  T174]  ? ksys_write (fs/read_write.c:739)
[   12.431135][  T174]  vfs_write (fs/read_write.c:687)
[   12.431140][  T174]  ksys_write (fs/read_write.c:739)
[   12.431142][  T174]  ? __ia32_sys_read (fs/read_write.c:723)
[   12.431145][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.431149][  T174]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   12.431151][  T174]  ? common_interrupt (arch/x86/kernel/irq.c:273 (discriminator 18))
[   12.431154][  T174]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.431157][  T174] RIP: 0033:0x7fadc83fc312
[   12.431161][  T174] Code: 08 0f 85 71 41 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 f3 0f 1e fa 55 bf 01 00
All code
========
   0:	08 0f                	or     %cl,(%rdi)
   2:	85 71 41             	test   %esi,0x41(%rcx)
   5:	ff                   	(bad)
   6:	ff 49 89             	decl   -0x77(%rcx)
   9:	fb                   	sti
   a:	48 89 f0             	mov    %rsi,%rax
   d:	48 89 d7             	mov    %rdx,%rdi
  10:	48 89 ce             	mov    %rcx,%rsi
  13:	4c 89 c2             	mov    %r8,%rdx
  16:	4d 89 ca             	mov    %r9,%r10
  19:	4c 8b 44 24 08       	mov    0x8(%rsp),%r8
  1e:	4c 8b 4c 24 10       	mov    0x10(%rsp),%r9
  23:	4c 89 5c 24 08       	mov    %r11,0x8(%rsp)
  28:	0f 05                	syscall
  2a:*	c3                   	ret		<-- trapping instruction
  2b:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  32:	00 00 00 
  35:	0f 1f 00             	nopl   (%rax)
  38:	f3 0f 1e fa          	endbr64
  3c:	55                   	push   %rbp
  3d:	bf                   	.byte 0xbf
  3e:	01 00                	add    %eax,(%rax)

Code starting with the faulting instruction
===========================================
   0:	c3                   	ret
   1:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
   8:	00 00 00 
   b:	0f 1f 00             	nopl   (%rax)
   e:	f3 0f 1e fa          	endbr64
  12:	55                   	push   %rbp
  13:	bf                   	.byte 0xbf
  14:	01 00                	add    %eax,(%rax)
[   12.431163][  T174] RSP: 002b:00007fffe96cb018 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   12.431166][  T174] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fadc83fc312
[   12.431168][  T174] RDX: 0000000000000001 RSI: 00005581b0406f10 RDI: 000000000000000b
[   12.431169][  T174] RBP: 00007fffe96cb040 R08: 0000000000000000 R09: 0000000000000000
[   12.431170][  T174] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fadc8269390
[   12.431171][  T174] R13: 00005581b0406f10 R14: 000000000000000b R15: 00007fadc81f50d0
| [   13.501041][  T174] softirqs last disabled at (475527): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   13.501044][  T174] Preemption disabled at:
| [   13.501045][  T174] vprintk_emit (kernel/printk/printk.c:2471)
| [   13.501054][  T174] Tainted: [W]=WARN
[   13.501055][  T174] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.501056][  T174] Call Trace:
[   13.501058][  T174]  <TASK>
[   13.501060][  T174]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   13.501066][  T174]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   13.501067][  T174]  __might_resched.cold (kernel/sched/core.c:9234)
[   13.501072][  T174]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   13.501076][  T174]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   13.501082][  T174]  __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))
[   13.501085][  T174]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   13.501091][  T174]  ? 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)
[   13.501094][  T174]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   13.501098][  T174]  put_chars (drivers/char/virtio_console.c:1176)
[   13.501101][  T174]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   13.501103][  T174]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   13.501106][  T174]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   13.501110][  T174]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   13.501114][  T174]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   13.501118][  T174]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.501119][  T174]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.501124][  T174]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   13.501127][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.501129][  T174]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   13.501133][  T174]  console_emit_next_record (kernel/printk/printk.c:3183)
[   13.501137][  T174]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   13.501142][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.501144][  T174]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   13.501148][  T174]  console_flush_one_record (kernel/printk/printk.c:3268)
[   13.501152][  T174]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   13.501154][  T174]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.501159][  T174]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   13.501162][  T174]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   13.501164][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.501166][  T174]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   13.501170][  T174]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   13.501172][  T174]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   13.501175][  T174]  vprintk_emit (kernel/printk/printk.c:2479)
[   13.501178][  T174]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   13.501181][  T174]  ? _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)
[   13.501186][  T174]  devkmsg_emit.constprop.0 (kernel/printk/printk.c:733)
[   13.501190][  T174]  ? vprintk_emit.cold (kernel/printk/printk.c:2449)
[   13.501194][  T174]  ? __kmalloc_noprof (mm/slub.c:5415 mm/slub.c:5439)
[   13.501196][  T174]  ? idr_get_free (??:?)
[   13.501201][  T174]  ? devkmsg_write (./include/linux/slab.h:995 kernel/printk/printk.c:762)
[   13.501203][  T174]  ? _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)
[   13.501205][  T174]  devkmsg_write.cold (kernel/printk/printk.c:796)
[   13.501208][  T174]  ? vprintk_default (kernel/printk/printk.c:2494)
[   13.501210][  T174]  ? cp_old_stat (fs/stat.c:406 (discriminator 3))
[   13.501214][  T174]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   13.501217][  T174]  ? vprintk_default (kernel/printk/printk.c:2494)
[   13.501219][  T174]  new_sync_write (fs/read_write.c:595)
[   13.501224][  T174]  ? new_sync_read (./include/linux/ioprio.h:41)
[   13.501228][  T174]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   13.501233][  T174]  ? __fget_files (./include/linux/rcupdate.h:882 fs/file.c:1100)
[   13.501238][  T174]  vfs_write (fs/read_write.c:687)
[   13.501242][  T174]  ksys_write (fs/read_write.c:739)
[   13.501245][  T174]  ? __ia32_sys_read (fs/read_write.c:723)
[   13.501247][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.501251][  T174]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   13.501253][  T174]  ? irq_exit_rcu (kernel/softirq.c:786)
[   13.501256][  T174]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   13.501258][  T174] RIP: 0033:0x7fadc83fc312
[   13.501262][  T174] Code: 08 0f 85 71 41 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 f3 0f 1e fa 55 bf 01 00
All code
========
   0:	08 0f                	or     %cl,(%rdi)
   2:	85 71 41             	test   %esi,0x41(%rcx)
   5:	ff                   	(bad)
   6:	ff 49 89             	decl   -0x77(%rcx)
   9:	fb                   	sti
   a:	48 89 f0             	mov    %rsi,%rax
   d:	48 89 d7             	mov    %rdx,%rdi
  10:	48 89 ce             	mov    %rcx,%rsi
  13:	4c 89 c2             	mov    %r8,%rdx
  16:	4d 89 ca             	mov    %r9,%r10
  19:	4c 8b 44 24 08       	mov    0x8(%rsp),%r8
  1e:	4c 8b 4c 24 10       	mov    0x10(%rsp),%r9
  23:	4c 89 5c 24 08       	mov    %r11,0x8(%rsp)
  28:	0f 05                	syscall
  2a:*	c3                   	ret		<-- trapping instruction
  2b:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  32:	00 00 00 
  35:	0f 1f 00             	nopl   (%rax)
  38:	f3 0f 1e fa          	endbr64
  3c:	55                   	push   %rbp
  3d:	bf                   	.byte 0xbf
  3e:	01 00                	add    %eax,(%rax)

Code starting with the faulting instruction
===========================================
   0:	c3                   	ret
   1:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
   8:	00 00 00 
   b:	0f 1f 00             	nopl   (%rax)
   e:	f3 0f 1e fa          	endbr64
  12:	55                   	push   %rbp
  13:	bf                   	.byte 0xbf
  14:	01 00                	add    %eax,(%rax)
[   13.501264][  T174] RSP: 002b:00007fffe96cb018 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   13.501267][  T174] RAX: ffffffffffffffda RBX: 00000000000002ee RCX: 00007fadc83fc312
[   13.501268][  T174] RDX: 00000000000002ee RSI: 00005581b0406f10 RDI: 000000000000000b
[   13.501269][  T174] RBP: 00007fffe96cb040 R08: 0000000000000000 R09: 0000000000000000
[   13.501270][  T174] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fadc8269390
[   13.501271][  T174] R13: 00005581b0406f10 R14: 000000000000000b R15: 00007fadc81f50d0
| [   14.892573][  T174] softirqs last disabled at (517631): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   14.892576][  T174] Preemption disabled at:
| [   14.892577][  T174] vprintk_emit (kernel/printk/printk.c:2471)
| [   14.892586][  T174] Tainted: [W]=WARN
[   14.892587][  T174] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   14.892589][  T174] Call Trace:
[   14.892591][  T174]  <TASK>
[   14.892592][  T174]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   14.892599][  T174]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   14.892601][  T174]  __might_resched.cold (kernel/sched/core.c:9234)
[   14.892606][  T174]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   14.892610][  T174]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   14.892617][  T174]  __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))
[   14.892620][  T174]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   14.892626][  T174]  ? 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)
[   14.892629][  T174]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   14.892633][  T174]  put_chars (drivers/char/virtio_console.c:1176)
[   14.892637][  T174]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   14.892639][  T174]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   14.892642][  T174]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   14.892646][  T174]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   14.892651][  T174]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   14.892654][  T174]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.892656][  T174]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.892661][  T174]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   14.892664][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.892667][  T174]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   14.892671][  T174]  console_emit_next_record (kernel/printk/printk.c:3183)
[   14.892675][  T174]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   14.892680][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.892682][  T174]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   14.892686][  T174]  console_flush_one_record (kernel/printk/printk.c:3268)
[   14.892690][  T174]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   14.892693][  T174]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.892698][  T174]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   14.892701][  T174]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   14.892703][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.892705][  T174]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   14.892709][  T174]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   14.892711][  T174]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   14.892714][  T174]  vprintk_emit (kernel/printk/printk.c:2479)
[   14.892717][  T174]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   14.892720][  T174]  ? _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)
[   14.892725][  T174]  devkmsg_emit.constprop.0 (kernel/printk/printk.c:733)
[   14.892730][  T174]  ? vprintk_emit.cold (kernel/printk/printk.c:2449)
[   14.892734][  T174]  ? __kmalloc_noprof (mm/slub.c:5415 mm/slub.c:5439)
[   14.892742][  T174]  ? idr_get_free (??:?)
[   14.892747][  T174]  ? devkmsg_write (./include/linux/slab.h:995 kernel/printk/printk.c:762)
[   14.892750][  T174]  ? _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)
[   14.892753][  T174]  devkmsg_write.cold (kernel/printk/printk.c:796)
[   14.892756][  T174]  ? vprintk_default (kernel/printk/printk.c:2494)
[   14.892758][  T174]  ? cp_old_stat (fs/stat.c:406 (discriminator 3))
[   14.892761][  T174]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   14.892764][  T174]  ? vprintk_default (kernel/printk/printk.c:2494)
[   14.892767][  T174]  new_sync_write (fs/read_write.c:595)
[   14.892772][  T174]  ? new_sync_read (./include/linux/ioprio.h:41)
[   14.892776][  T174]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   14.892781][  T174]  ? __fget_files (./include/linux/rcupdate.h:882 fs/file.c:1100)
[   14.892785][  T174]  vfs_write (fs/read_write.c:687)
[   14.892789][  T174]  ksys_write (fs/read_write.c:739)
[   14.892792][  T174]  ? __ia32_sys_read (fs/read_write.c:723)
[   14.892795][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.892798][  T174]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   14.892801][  T174]  ? irq_exit_rcu (kernel/softirq.c:786)
[   14.892803][  T174]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   14.892806][  T174] RIP: 0033:0x7fadc83fc312
[   14.892810][  T174] Code: 08 0f 85 71 41 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 f3 0f 1e fa 55 bf 01 00
All code
========
   0:	08 0f                	or     %cl,(%rdi)
   2:	85 71 41             	test   %esi,0x41(%rcx)
   5:	ff                   	(bad)
   6:	ff 49 89             	decl   -0x77(%rcx)
   9:	fb                   	sti
   a:	48 89 f0             	mov    %rsi,%rax
   d:	48 89 d7             	mov    %rdx,%rdi
  10:	48 89 ce             	mov    %rcx,%rsi
  13:	4c 89 c2             	mov    %r8,%rdx
  16:	4d 89 ca             	mov    %r9,%r10
  19:	4c 8b 44 24 08       	mov    0x8(%rsp),%r8
  1e:	4c 8b 4c 24 10       	mov    0x10(%rsp),%r9
  23:	4c 89 5c 24 08       	mov    %r11,0x8(%rsp)
  28:	0f 05                	syscall
  2a:*	c3                   	ret		<-- trapping instruction
  2b:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  32:	00 00 00 
  35:	0f 1f 00             	nopl   (%rax)
  38:	f3 0f 1e fa          	endbr64
  3c:	55                   	push   %rbp
  3d:	bf                   	.byte 0xbf
  3e:	01 00                	add    %eax,(%rax)

Code starting with the faulting instruction
===========================================
   0:	c3                   	ret
   1:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
   8:	00 00 00 
   b:	0f 1f 00             	nopl   (%rax)
   e:	f3 0f 1e fa          	endbr64
  12:	55                   	push   %rbp
  13:	bf                   	.byte 0xbf
  14:	01 00                	add    %eax,(%rax)
[   14.892812][  T174] RSP: 002b:00007fffe96cb018 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   14.892815][  T174] RAX: ffffffffffffffda RBX: 00000000000002ee RCX: 00007fadc83fc312
[   14.892817][  T174] RDX: 00000000000002ee RSI: 00005581b0406f10 RDI: 000000000000000b
[   14.892818][  T174] RBP: 00007fffe96cb040 R08: 0000000000000000 R09: 0000000000000000
[   14.892819][  T174] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fadc8269390
[   14.892820][  T174] R13: 00005581b0406f10 R14: 000000000000000b R15: 00007fadc81f50d0
| [   15.955136][  T174] softirqs last disabled at (551951): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   15.955139][  T174] Preemption disabled at:
| [   15.955140][  T174] vprintk_emit (kernel/printk/printk.c:2471)
| [   15.955150][  T174] Tainted: [W]=WARN
[   15.955151][  T174] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.955153][  T174] Call Trace:
[   15.955155][  T174]  <TASK>
[   15.955157][  T174]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   15.955163][  T174]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   15.955165][  T174]  __might_resched.cold (kernel/sched/core.c:9234)
[   15.955169][  T174]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   15.955174][  T174]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   15.955180][  T174]  __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))
[   15.955183][  T174]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   15.955190][  T174]  ? 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)
[   15.955193][  T174]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   15.955197][  T174]  put_chars (drivers/char/virtio_console.c:1176)
[   15.955200][  T174]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   15.955202][  T174]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   15.955206][  T174]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   15.955209][  T174]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   15.955214][  T174]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   15.955218][  T174]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.955220][  T174]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.955224][  T174]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   15.955228][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.955230][  T174]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   15.955235][  T174]  console_emit_next_record (kernel/printk/printk.c:3183)
[   15.955242][  T174]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   15.955247][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.955249][  T174]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   15.955253][  T174]  console_flush_one_record (kernel/printk/printk.c:3268)
[   15.955257][  T174]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   15.955259][  T174]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.955265][  T174]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   15.955268][  T174]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   15.955270][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.955272][  T174]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   15.955276][  T174]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   15.955278][  T174]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   15.955281][  T174]  vprintk_emit (kernel/printk/printk.c:2479)
[   15.955284][  T174]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   15.955287][  T174]  ? _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)
[   15.955292][  T174]  devkmsg_emit.constprop.0 (kernel/printk/printk.c:733)
[   15.955296][  T174]  ? vprintk_emit.cold (kernel/printk/printk.c:2449)
[   15.955302][  T174]  ? __kmalloc_noprof (mm/slub.c:5415 mm/slub.c:5439)
[   15.955305][  T174]  ? idr_get_free (??:?)
[   15.955309][  T174]  ? devkmsg_write (./include/linux/slab.h:995 kernel/printk/printk.c:762)
[   15.955312][  T174]  ? _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)
[   15.955314][  T174]  devkmsg_write.cold (kernel/printk/printk.c:796)
[   15.955317][  T174]  ? vprintk_default (kernel/printk/printk.c:2494)
[   15.955319][  T174]  ? cp_old_stat (fs/stat.c:406 (discriminator 3))
[   15.955323][  T174]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   15.955326][  T174]  ? vprintk_default (kernel/printk/printk.c:2494)
[   15.955328][  T174]  new_sync_write (fs/read_write.c:595)
[   15.955333][  T174]  ? new_sync_read (./include/linux/ioprio.h:41)
[   15.955338][  T174]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   15.955343][  T174]  ? __fget_files (./include/linux/rcupdate.h:882 fs/file.c:1100)
[   15.955347][  T174]  vfs_write (fs/read_write.c:687)
[   15.955351][  T174]  ksys_write (fs/read_write.c:739)
[   15.955354][  T174]  ? __ia32_sys_read (fs/read_write.c:723)
[   15.955356][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.955360][  T174]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   15.955362][  T174]  ? irq_exit_rcu (kernel/softirq.c:786)
[   15.955365][  T174]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   15.955368][  T174] RIP: 0033:0x7fadc83fc312
[   15.955372][  T174] Code: 08 0f 85 71 41 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 f3 0f 1e fa 55 bf 01 00
All code
========
   0:	08 0f                	or     %cl,(%rdi)
   2:	85 71 41             	test   %esi,0x41(%rcx)
   5:	ff                   	(bad)
   6:	ff 49 89             	decl   -0x77(%rcx)
   9:	fb                   	sti
   a:	48 89 f0             	mov    %rsi,%rax
   d:	48 89 d7             	mov    %rdx,%rdi
  10:	48 89 ce             	mov    %rcx,%rsi
  13:	4c 89 c2             	mov    %r8,%rdx
  16:	4d 89 ca             	mov    %r9,%r10
  19:	4c 8b 44 24 08       	mov    0x8(%rsp),%r8
  1e:	4c 8b 4c 24 10       	mov    0x10(%rsp),%r9
  23:	4c 89 5c 24 08       	mov    %r11,0x8(%rsp)
  28:	0f 05                	syscall
  2a:*	c3                   	ret		<-- trapping instruction
  2b:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  32:	00 00 00 
  35:	0f 1f 00             	nopl   (%rax)
  38:	f3 0f 1e fa          	endbr64
  3c:	55                   	push   %rbp
  3d:	bf                   	.byte 0xbf
  3e:	01 00                	add    %eax,(%rax)

Code starting with the faulting instruction
===========================================
   0:	c3                   	ret
   1:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
   8:	00 00 00 
   b:	0f 1f 00             	nopl   (%rax)
   e:	f3 0f 1e fa          	endbr64
  12:	55                   	push   %rbp
  13:	bf                   	.byte 0xbf
  14:	01 00                	add    %eax,(%rax)
[   15.955374][  T174] RSP: 002b:00007fffe96cb018 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   15.955377][  T174] RAX: ffffffffffffffda RBX: 00000000000002ee RCX: 00007fadc83fc312
[   15.955379][  T174] RDX: 00000000000002ee RSI: 00005581b0406f10 RDI: 000000000000000b
[   15.955380][  T174] RBP: 00007fffe96cb040 R08: 0000000000000000 R09: 0000000000000000
[   15.955381][  T174] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fadc8269390
[   15.955382][  T174] R13: 00005581b0406f10 R14: 000000000000000b R15: 00007fadc81f50d0
| [   17.337667][  T174] softirqs last disabled at (586221): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   17.337669][  T174] Preemption disabled at:
| [   17.337670][  T174] vprintk_emit (kernel/printk/printk.c:2471)
| [   17.337680][  T174] Tainted: [W]=WARN
[   17.337681][  T174] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   17.337683][  T174] Call Trace:
[   17.337685][  T174]  <TASK>
[   17.337686][  T174]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   17.337692][  T174]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   17.337694][  T174]  __might_resched.cold (kernel/sched/core.c:9234)
[   17.337699][  T174]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   17.337704][  T174]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   17.337710][  T174]  __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))
[   17.337713][  T174]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   17.337719][  T174]  ? 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)
[   17.337722][  T174]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   17.337726][  T174]  put_chars (drivers/char/virtio_console.c:1176)
[   17.337729][  T174]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   17.337731][  T174]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   17.337741][  T174]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   17.337745][  T174]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   17.337750][  T174]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   17.337754][  T174]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   17.337756][  T174]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   17.337761][  T174]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   17.337765][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.337767][  T174]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   17.337771][  T174]  console_emit_next_record (kernel/printk/printk.c:3183)
[   17.337775][  T174]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   17.337780][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.337782][  T174]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   17.337786][  T174]  console_flush_one_record (kernel/printk/printk.c:3268)
[   17.337791][  T174]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   17.337793][  T174]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   17.337798][  T174]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   17.337802][  T174]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   17.337804][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.337806][  T174]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   17.337810][  T174]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   17.337811][  T174]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   17.337814][  T174]  vprintk_emit (kernel/printk/printk.c:2479)
[   17.337818][  T174]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   17.337821][  T174]  ? _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)
[   17.337826][  T174]  devkmsg_emit.constprop.0 (kernel/printk/printk.c:733)
[   17.337830][  T174]  ? vprintk_emit.cold (kernel/printk/printk.c:2449)
[   17.337834][  T174]  ? __kmalloc_noprof (mm/slub.c:5415 mm/slub.c:5439)
[   17.337837][  T174]  ? idr_get_free (??:?)
[   17.337841][  T174]  ? devkmsg_write (./include/linux/slab.h:995 kernel/printk/printk.c:762)
[   17.337844][  T174]  ? _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)
[   17.337846][  T174]  devkmsg_write.cold (kernel/printk/printk.c:796)
[   17.337849][  T174]  ? vprintk_default (kernel/printk/printk.c:2494)
[   17.337851][  T174]  ? cp_old_stat (fs/stat.c:406 (discriminator 3))
[   17.337855][  T174]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   17.337858][  T174]  ? vprintk_default (kernel/printk/printk.c:2494)
[   17.337860][  T174]  new_sync_write (fs/read_write.c:595)
[   17.337866][  T174]  ? new_sync_read (./include/linux/ioprio.h:41)
[   17.337870][  T174]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   17.337875][  T174]  ? __fget_files (./include/linux/rcupdate.h:882 fs/file.c:1100)
[   17.337879][  T174]  vfs_write (fs/read_write.c:687)
[   17.337883][  T174]  ksys_write (fs/read_write.c:739)
[   17.337886][  T174]  ? __ia32_sys_read (fs/read_write.c:723)
[   17.337889][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.337892][  T174]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   17.337895][  T174]  ? irq_exit_rcu (kernel/softirq.c:786)
[   17.337898][  T174]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   17.337901][  T174] RIP: 0033:0x7fadc83fc312
[   17.337905][  T174] Code: 08 0f 85 71 41 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 f3 0f 1e fa 55 bf 01 00
All code
========
   0:	08 0f                	or     %cl,(%rdi)
   2:	85 71 41             	test   %esi,0x41(%rcx)
   5:	ff                   	(bad)
   6:	ff 49 89             	decl   -0x77(%rcx)
   9:	fb                   	sti
   a:	48 89 f0             	mov    %rsi,%rax
   d:	48 89 d7             	mov    %rdx,%rdi
  10:	48 89 ce             	mov    %rcx,%rsi
  13:	4c 89 c2             	mov    %r8,%rdx
  16:	4d 89 ca             	mov    %r9,%r10
  19:	4c 8b 44 24 08       	mov    0x8(%rsp),%r8
  1e:	4c 8b 4c 24 10       	mov    0x10(%rsp),%r9
  23:	4c 89 5c 24 08       	mov    %r11,0x8(%rsp)
  28:	0f 05                	syscall
  2a:*	c3                   	ret		<-- trapping instruction
  2b:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  32:	00 00 00 
  35:	0f 1f 00             	nopl   (%rax)
  38:	f3 0f 1e fa          	endbr64
  3c:	55                   	push   %rbp
  3d:	bf                   	.byte 0xbf
  3e:	01 00                	add    %eax,(%rax)

Code starting with the faulting instruction
===========================================
   0:	c3                   	ret
   1:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
   8:	00 00 00 
   b:	0f 1f 00             	nopl   (%rax)
   e:	f3 0f 1e fa          	endbr64
  12:	55                   	push   %rbp
  13:	bf                   	.byte 0xbf
  14:	01 00                	add    %eax,(%rax)
[   17.337906][  T174] RSP: 002b:00007fffe96cb018 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   17.337910][  T174] RAX: ffffffffffffffda RBX: 0000000000000316 RCX: 00007fadc83fc312
[   17.337911][  T174] RDX: 0000000000000316 RSI: 00005581b0406f10 RDI: 000000000000000b
[   17.337912][  T174] RBP: 00007fffe96cb040 R08: 0000000000000000 R09: 0000000000000000
[   17.337913][  T174] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fadc8269390
[   17.337914][  T174] R13: 00005581b0406f10 R14: 000000000000000b R15: 00007fadc81f50d0
| [   18.456387][  T174] softirqs last disabled at (715365): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   18.456390][  T174] Preemption disabled at:
| [   18.456390][  T174] vprintk_emit (kernel/printk/printk.c:2471)
| [   18.456399][  T174] Tainted: [W]=WARN
[   18.456400][  T174] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   18.456403][  T174] Call Trace:
[   18.456404][  T174]  <TASK>
[   18.456406][  T174]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   18.456412][  T174]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   18.456414][  T174]  __might_resched.cold (kernel/sched/core.c:9234)
[   18.456418][  T174]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   18.456423][  T174]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   18.456429][  T174]  __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))
[   18.456431][  T174]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   18.456438][  T174]  ? 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)
[   18.456441][  T174]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   18.456445][  T174]  put_chars (drivers/char/virtio_console.c:1176)
[   18.456448][  T174]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   18.456450][  T174]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   18.456454][  T174]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   18.456457][  T174]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   18.456462][  T174]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   18.456465][  T174]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   18.456467][  T174]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   18.456471][  T174]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   18.456475][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   18.456477][  T174]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   18.456481][  T174]  console_emit_next_record (kernel/printk/printk.c:3183)
[   18.456485][  T174]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   18.456490][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   18.456492][  T174]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   18.456495][  T174]  console_flush_one_record (kernel/printk/printk.c:3268)
[   18.456500][  T174]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   18.456502][  T174]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   18.456507][  T174]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   18.456510][  T174]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   18.456512][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   18.456514][  T174]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   18.456517][  T174]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   18.456519][  T174]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   18.456522][  T174]  vprintk_emit (kernel/printk/printk.c:2479)
[   18.456525][  T174]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   18.456528][  T174]  ? _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)
[   18.456533][  T174]  devkmsg_emit.constprop.0 (kernel/printk/printk.c:733)
[   18.456537][  T174]  ? vprintk_emit.cold (kernel/printk/printk.c:2449)
[   18.456541][  T174]  ? __kmalloc_noprof (mm/slub.c:5415 mm/slub.c:5439)
[   18.456543][  T174]  ? idr_get_free (??:?)
[   18.456547][  T174]  ? devkmsg_write (./include/linux/slab.h:995 kernel/printk/printk.c:762)
[   18.456550][  T174]  ? _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)
[   18.456552][  T174]  devkmsg_write.cold (kernel/printk/printk.c:796)
[   18.456555][  T174]  ? vprintk_default (kernel/printk/printk.c:2494)
[   18.456557][  T174]  ? cp_old_stat (fs/stat.c:406 (discriminator 3))
[   18.456560][  T174]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   18.456563][  T174]  ? vprintk_default (kernel/printk/printk.c:2494)
[   18.456565][  T174]  new_sync_write (fs/read_write.c:595)
[   18.456570][  T174]  ? new_sync_read (./include/linux/ioprio.h:41)
[   18.456574][  T174]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   18.456579][  T174]  ? __fget_files (./include/linux/rcupdate.h:882 fs/file.c:1100)
[   18.456583][  T174]  vfs_write (fs/read_write.c:687)
[   18.456587][  T174]  ksys_write (fs/read_write.c:739)
[   18.456589][  T174]  ? __ia32_sys_read (fs/read_write.c:723)
[   18.456592][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   18.456595][  T174]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   18.456598][  T174]  ? irq_exit_rcu (kernel/softirq.c:786)
[   18.456601][  T174]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   18.456603][  T174] RIP: 0033:0x7fadc83fc312
[   18.456608][  T174] Code: 08 0f 85 71 41 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 f3 0f 1e fa 55 bf 01 00
All code
========
   0:	08 0f                	or     %cl,(%rdi)
   2:	85 71 41             	test   %esi,0x41(%rcx)
   5:	ff                   	(bad)
   6:	ff 49 89             	decl   -0x77(%rcx)
   9:	fb                   	sti
   a:	48 89 f0             	mov    %rsi,%rax
   d:	48 89 d7             	mov    %rdx,%rdi
  10:	48 89 ce             	mov    %rcx,%rsi
  13:	4c 89 c2             	mov    %r8,%rdx
  16:	4d 89 ca             	mov    %r9,%r10
  19:	4c 8b 44 24 08       	mov    0x8(%rsp),%r8
  1e:	4c 8b 4c 24 10       	mov    0x10(%rsp),%r9
  23:	4c 89 5c 24 08       	mov    %r11,0x8(%rsp)
  28:	0f 05                	syscall
  2a:*	c3                   	ret		<-- trapping instruction
  2b:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  32:	00 00 00 
  35:	0f 1f 00             	nopl   (%rax)
  38:	f3 0f 1e fa          	endbr64
  3c:	55                   	push   %rbp
  3d:	bf                   	.byte 0xbf
  3e:	01 00                	add    %eax,(%rax)

Code starting with the faulting instruction
===========================================
   0:	c3                   	ret
   1:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
   8:	00 00 00 
   b:	0f 1f 00             	nopl   (%rax)
   e:	f3 0f 1e fa          	endbr64
  12:	55                   	push   %rbp
  13:	bf                   	.byte 0xbf
  14:	01 00                	add    %eax,(%rax)
[   18.456610][  T174] RSP: 002b:00007fffe96cb018 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   18.456613][  T174] RAX: ffffffffffffffda RBX: 0000000000000316 RCX: 00007fadc83fc312
[   18.456614][  T174] RDX: 0000000000000316 RSI: 00005581b0406f10 RDI: 000000000000000b
[   18.456615][  T174] RBP: 00007fffe96cb040 R08: 0000000000000000 R09: 0000000000000000
[   18.456616][  T174] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fadc8269390
[   18.456617][  T174] R13: 00005581b0406f10 R14: 000000000000000b R15: 00007fadc81f50d0
| [   19.819088][  T174] softirqs last disabled at (747405): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   19.819091][  T174] Preemption disabled at:
| [   19.819092][  T174] vprintk_emit (kernel/printk/printk.c:2471)
| [   19.819102][  T174] Tainted: [W]=WARN
[   19.819103][  T174] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.819105][  T174] Call Trace:
[   19.819107][  T174]  <TASK>
[   19.819109][  T174]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   19.819115][  T174]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   19.819117][  T174]  __might_resched.cold (kernel/sched/core.c:9234)
[   19.819122][  T174]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   19.819126][  T174]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   19.819132][  T174]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   19.819135][  T174]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   19.819142][  T174]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   19.819145][  T174]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   19.819149][  T174]  put_chars (drivers/char/virtio_console.c:1176)
[   19.819152][  T174]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   19.819154][  T174]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   19.819158][  T174]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   19.819162][  T174]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   19.819167][  T174]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   19.819171][  T174]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   19.819173][  T174]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   19.819177][  T174]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   19.819181][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.819183][  T174]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   19.819188][  T174]  console_emit_next_record (kernel/printk/printk.c:3183)
[   19.819192][  T174]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   19.819197][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.819199][  T174]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   19.819203][  T174]  console_flush_one_record (kernel/printk/printk.c:3268)
[   19.819208][  T174]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   19.819210][  T174]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   19.819215][  T174]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   19.819219][  T174]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   19.819221][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.819223][  T174]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   19.819227][  T174]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   19.819229][  T174]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   19.819232][  T174]  vprintk_emit (kernel/printk/printk.c:2479)
[   19.819235][  T174]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   19.819238][  T174]  ? _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)
[   19.819244][  T174]  devkmsg_emit.constprop.0 (kernel/printk/printk.c:733)
[   19.819248][  T174]  ? vprintk_emit.cold (kernel/printk/printk.c:2449)
[   19.819252][  T174]  ? __kmalloc_noprof (mm/slub.c:5415 mm/slub.c:5439)
[   19.819254][  T174]  ? idr_get_free (??:?)
[   19.819259][  T174]  ? devkmsg_write (./include/linux/slab.h:995 kernel/printk/printk.c:762)
[   19.819262][  T174]  ? _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)
[   19.819264][  T174]  devkmsg_write.cold (kernel/printk/printk.c:796)
[   19.819267][  T174]  ? vprintk_default (kernel/printk/printk.c:2494)
[   19.819269][  T174]  ? cp_old_stat (fs/stat.c:406 (discriminator 3))
[   19.819273][  T174]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   19.819276][  T174]  ? vprintk_default (kernel/printk/printk.c:2494)
[   19.819278][  T174]  new_sync_write (fs/read_write.c:595)
[   19.819284][  T174]  ? new_sync_read (./include/linux/ioprio.h:41)
[   19.819289][  T174]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   19.819294][  T174]  ? __fget_files (./include/linux/rcupdate.h:882 fs/file.c:1100)
[   19.819298][  T174]  vfs_write (fs/read_write.c:687)
[   19.819305][  T174]  ksys_write (fs/read_write.c:739)
[   19.819308][  T174]  ? __ia32_sys_read (fs/read_write.c:723)
[   19.819311][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.819314][  T174]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   19.819317][  T174]  ? irq_exit_rcu (kernel/softirq.c:786)
[   19.819320][  T174]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   19.819323][  T174] RIP: 0033:0x7fadc83fc312
[   19.819327][  T174] Code: 08 0f 85 71 41 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 f3 0f 1e fa 55 bf 01 00
All code
========
   0:	08 0f                	or     %cl,(%rdi)
   2:	85 71 41             	test   %esi,0x41(%rcx)
   5:	ff                   	(bad)
   6:	ff 49 89             	decl   -0x77(%rcx)
   9:	fb                   	sti
   a:	48 89 f0             	mov    %rsi,%rax
   d:	48 89 d7             	mov    %rdx,%rdi
  10:	48 89 ce             	mov    %rcx,%rsi
  13:	4c 89 c2             	mov    %r8,%rdx
  16:	4d 89 ca             	mov    %r9,%r10
  19:	4c 8b 44 24 08       	mov    0x8(%rsp),%r8
  1e:	4c 8b 4c 24 10       	mov    0x10(%rsp),%r9
  23:	4c 89 5c 24 08       	mov    %r11,0x8(%rsp)
  28:	0f 05                	syscall
  2a:*	c3                   	ret		<-- trapping instruction
  2b:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  32:	00 00 00 
  35:	0f 1f 00             	nopl   (%rax)
  38:	f3 0f 1e fa          	endbr64
  3c:	55                   	push   %rbp
  3d:	bf                   	.byte 0xbf
  3e:	01 00                	add    %eax,(%rax)

Code starting with the faulting instruction
===========================================
   0:	c3                   	ret
   1:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
   8:	00 00 00 
   b:	0f 1f 00             	nopl   (%rax)
   e:	f3 0f 1e fa          	endbr64
  12:	55                   	push   %rbp
  13:	bf                   	.byte 0xbf
  14:	01 00                	add    %eax,(%rax)
[   19.819329][  T174] RSP: 002b:00007fffe96cb018 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   19.819332][  T174] RAX: ffffffffffffffda RBX: 0000000000000316 RCX: 00007fadc83fc312
[   19.819333][  T174] RDX: 0000000000000316 RSI: 00005581b0406f10 RDI: 000000000000000b
[   19.819335][  T174] RBP: 00007fffe96cb040 R08: 0000000000000000 R09: 0000000000000000
[   19.819336][  T174] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fadc8269390
[   19.819337][  T174] R13: 00005581b0406f10 R14: 000000000000000b R15: 00007fadc81f50d0
| [   24.331610][  T229] softirqs last disabled at (529178): release_sock (./include/linux/spinlock.h:353 net/core/sock.c:3858)
| [   24.331614][  T229] Preemption disabled at:
| [   24.331615][  T229] 0x0
| [   24.331626][  T229] Tainted: [W]=WARN
[   24.331627][  T229] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.331629][  T229] Call Trace:
[   24.331630][  T229]  <TASK>
[   24.331632][  T229]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   24.331639][  T229]  __might_resched.cold (kernel/sched/core.c:9234)
[   24.331643][  T229]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   24.331648][  T229]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   24.331653][  T229]  __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))
[   24.331656][  T229]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   24.331662][  T229]  ? 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)
[   24.331665][  T229]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   24.331669][  T229]  put_chars (drivers/char/virtio_console.c:1176)
[   24.331672][  T229]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   24.331676][  T229]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   24.331679][  T229]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   24.331682][  T229]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   24.331687][  T229]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   24.331690][  T229]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   24.331692][  T229]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.331694][  T229]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.331699][  T229]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   24.331700][  T229]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   24.331705][  T229]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   24.331709][  T229]  console_emit_next_record (kernel/printk/printk.c:3183)
[   24.331713][  T229]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   24.331718][  T229]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.331720][  T229]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   24.331725][  T229]  console_flush_one_record (kernel/printk/printk.c:3268)
[   24.331729][  T229]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   24.331731][  T229]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.331742][  T229]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   24.331746][  T229]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   24.331748][  T229]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.331750][  T229]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   24.331754][  T229]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   24.331756][  T229]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   24.331758][  T229]  vprintk_emit (kernel/printk/printk.c:2479)
[   24.331762][  T229]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   24.331765][  T229]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.331769][  T229]  _printk (kernel/printk/printk.c:2504)
[   24.331773][  T229]  ? snapshot_read.cold (user.c:?)
[   24.331776][  T229]  ? do_raw_spin_lock (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:1301 ./include/asm-generic/qspinlock.h:112 kernel/locking/spinlock_debug.c:116)
[   24.331778][  T229]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   24.331783][  T229]  ? do_raw_spin_lock (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:1301 ./include/asm-generic/qspinlock.h:112 kernel/locking/spinlock_debug.c:116)
[   24.331786][  T229]  do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4))
[   24.331790][  T229]  ? exit_notify (kernel/exit.c:780)
[   24.331791][  T229]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   24.331794][  T229]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   24.331796][  T229]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   24.331800][  T229]  do_group_exit (kernel/exit.c:1151)
[   24.331802][  T229]  ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4427 (discriminator 2))
[   24.331804][  T229]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   24.331807][  T229]  ? _raw_spin_unlock_irq (./include/linux/spinlock_api_smp.h:219 kernel/locking/spinlock.c:229)
[   24.331810][  T229]  ? _raw_spin_unlock_irq (./include/linux/spinlock_api_smp.h:220 (discriminator 1) kernel/locking/spinlock.c:229 (discriminator 1))
[   24.331811][  T229]  get_signal (kernel/signal.c:3039)
[   24.331815][  T229]  ? ____sys_recvmsg (net/socket.c:1151 (discriminator 3))
[   24.331820][  T229]  ? new_sync_read (./include/linux/ioprio.h:41)
[   24.331824][  T229]  ? ptrace_signal (./include/linux/signal.h:87)
[   24.331827][  T229]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   24.331831][  T229]  arch_do_signal_or_restart (arch/x86/kernel/signal.c:337)
[   24.331836][  T229]  ? __fget_files (./include/linux/rcupdate.h:882 fs/file.c:1100)
[   24.331839][  T229]  ? get_sigframe_size (arch/x86/kernel/signal.c:233)
[   24.331845][  T229]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.331847][  T229]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   24.331851][  T229]  exit_to_user_mode_loop (kernel/entry/common.c:66 kernel/entry/common.c:101)
[   24.331854][  T229]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.331857][  T229]  do_syscall_64 (./include/linux/irq-entry-common.h:207 ./include/linux/irq-entry-common.h:230 ./include/linux/entry-common.h:336 arch/x86/entry/syscall_64.c:89)
[   24.331860][  T229]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   24.331863][  T229]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   24.331865][  T229] RIP: 0033:0x7fd3e425c312
[   24.331867][  T229] Code: Unable to access opcode bytes at 0x7fd3e425c2e8.

Code starting with the faulting instruction
===========================================
[   24.331869][  T229] RSP: 002b:00007fd3e202fc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   24.331872][  T229] RAX: 0000000000019874 RBX: 0000000000020000 RCX: 00007fd3e425c312
[   24.331873][  T229] RDX: 0000000000020000 RSI: 00007fd3e39b4000 RDI: 000000000000000b
[   24.331874][  T229] RBP: 00007fd3e202fca0 R08: 0000000000000000 R09: 0000000000000000
[   24.331875][  T229] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fd3e39b4000


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