======================================
| [ 46.660585][ C1] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129) 
| [   46.660957][    C1]
| [   46.661044][    C1]
| [   46.661044][    C1] stack backtrace:
[   46.661515][    C1] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   46.661895][    C1] Call Trace:
[   46.662031][    C1]  <IRQ>
[ 46.662119][ C1] dump_stack_lvl (lib/dump_stack.c:117) 
[ 46.662293][ C1] print_irq_inversion_bug.part.0 (kernel/locking/lockdep.c:4024) 
[ 46.662625][ C1] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 46.662801][ C1] ? __pfx_print_irq_inversion_bug.part.0 (kernel/locking/lockdep.c:4024) 
[ 46.663010][ C1] ? __pfx_usage_skip (kernel/locking/lockdep.c:2264) 
[ 46.663288][ C1] ? __pfx_usage_match (kernel/locking/lockdep.c:2256) 
[ 46.663456][ C1] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) 
[ 46.663660][ C1] mark_lock_irq (kernel/locking/lockdep.c:4244) 
[ 46.663945][ C1] ? __pfx_mark_lock_irq (kernel/locking/lockdep.c:4207) 
[ 46.664114][ C1] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 46.664407][ C1] ? save_trace (kernel/locking/lockdep.c:586) 
[ 46.664576][ C1] mark_lock (kernel/locking/lockdep.c:4678) 
[ 46.664715][ C1] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 46.664886][ C1] mark_usage (kernel/locking/lockdep.c:4567) 
[ 46.665131][ C1] __lock_acquire (kernel/locking/lockdep.c:5091) 
[ 46.665303][ C1] ? __pfx_validate_chain (kernel/locking/lockdep.c:3825) 
[ 46.665471][ C1] ? __pfx_addrconf_rs_timer (net/ipv6/addrconf.c:4016) 
[ 46.665645][ C1] lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) 
[ 46.665812][ C1] ? addrconf_rs_timer (net/ipv6/addrconf.c:4023) 
[ 46.666099][ C1] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) 
[ 46.666266][ C1] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 52)) 
[ 46.666434][ C1] ? addrconf_rs_timer (net/ipv6/addrconf.c:4023) 
[ 46.666606][ C1] ? lock_acquire (kernel/locking/lockdep.c:5727) 
[ 46.666894][ C1] ? addrconf_rs_timer (net/ipv6/addrconf.c:4023) 
[ 46.667061][ C1] _raw_write_lock (./include/linux/rwlock_api_smp.h:210 kernel/locking/spinlock.c:300) 
[ 46.667234][ C1] ? addrconf_rs_timer (net/ipv6/addrconf.c:4023) 
[ 46.667403][ C1] addrconf_rs_timer (net/ipv6/addrconf.c:4023) 
[ 46.667575][ C1] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) 
[ 46.667826][ C1] ? __pfx_addrconf_rs_timer (net/ipv6/addrconf.c:4016) 
[ 46.667995][ C1] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1783) 
[ 46.668168][ C1] ? lock_acquire (kernel/locking/lockdep.c:5727) 
[ 46.668559][ C1] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1783) 
[ 46.668736][ C1] ? __pfx_addrconf_rs_timer (net/ipv6/addrconf.c:4016) 
[ 46.668905][ C1] call_timer_fn (kernel/time/timer.c:1793) 
[ 46.669073][ C1] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1783) 
[ 46.669243][ C1] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1783) 
[ 46.669533][ C1] ? __pfx_call_timer_fn (kernel/time/timer.c:1770) 
[ 46.669709][ C1] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) 
[ 46.669841][ C1] __run_timers (kernel/time/timer.c:1845 kernel/time/timer.c:2418) 
[ 46.670050][ C1] ? __pfx_addrconf_rs_timer (net/ipv6/addrconf.c:4016) 
[ 46.670334][ C1] ? __pfx___run_timers (kernel/time/timer.c:2389) 
[ 46.670513][ C1] ? do_raw_spin_lock (./arch/x86/include/asm/atomic.h:115 ./include/linux/atomic/atomic-arch-fallback.h:2170 ./include/linux/atomic/atomic-instrumented.h:1302 ./include/asm-generic/qspinlock.h:111 kernel/locking/spinlock_debug.c:116) 
[ 46.670689][ C1] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 46.670856][ C1] ? lock_acquire (kernel/locking/lockdep.c:5727) 
[ 46.671144][ C1] ? run_timer_softirq (kernel/time/timer.c:2429 kernel/time/timer.c:2422 kernel/time/timer.c:2438 kernel/time/timer.c:2448) 
[ 46.671315][ C1] run_timer_softirq (kernel/time/timer.c:2430 kernel/time/timer.c:2422 kernel/time/timer.c:2438 kernel/time/timer.c:2448) 
[ 46.671483][ C1] __do_softirq (kernel/softirq.c:554) 
[ 46.671703][ C1] irq_exit_rcu (kernel/softirq.c:428 kernel/softirq.c:633 kernel/softirq.c:645) 
[ 46.671864][ C1] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1043 arch/x86/kernel/apic/apic.c:1043) 
[   46.672145][    C1]  </IRQ>
[   46.672233][    C1]  <TASK>
[ 46.672321][ C1] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 46.672532][ C1] RIP: 0010:rcu_is_watching (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/context_tracking.h:122 kernel/rcu/tree.c:700) 
[ 46.672732][ C1] Code: 90 90 90 90 90 f3 0f 1e fa 53 65 ff 05 3c 73 6c 5f 65 48 8b 1d 44 c5 6a 5f 48 8d bb e0 84 03 00 48 b8 00 00 00 00 00 fc ff df <48> 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0
All code
========
   0:	90                   	nop
   1:	90                   	nop
   2:	90                   	nop
   3:	90                   	nop
   4:	90                   	nop
   5:	f3 0f 1e fa          	endbr64
   9:	53                   	push   %rbx
   a:	65 ff 05 3c 73 6c 5f 	incl   %gs:0x5f6c733c(%rip)        # 0x5f6c734d
  11:	65 48 8b 1d 44 c5 6a 	mov    %gs:0x5f6ac544(%rip),%rbx        # 0x5f6ac55d
  18:	5f 
  19:	48 8d bb e0 84 03 00 	lea    0x384e0(%rbx),%rdi
  20:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  27:	fc ff df 
  2a:*	48 89 fa             	mov    %rdi,%rdx		<-- trapping instruction
  2d:	48 c1 ea 03          	shr    $0x3,%rdx
  31:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
  35:	48 89 f8             	mov    %rdi,%rax
  38:	83 e0 07             	and    $0x7,%eax
  3b:	83 c0 03             	add    $0x3,%eax
  3e:	38 d0                	cmp    %dl,%al

Code starting with the faulting instruction
===========================================
   0:	48 89 fa             	mov    %rdi,%rdx
   3:	48 c1 ea 03          	shr    $0x3,%rdx
   7:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   b:	48 89 f8             	mov    %rdi,%rax
   e:	83 e0 07             	and    $0x7,%eax
  11:	83 c0 03             	add    $0x3,%eax
  14:	38 d0                	cmp    %dl,%al
[   46.673440][    C1] RSP: 0018:ffffc90000bcf0d8 EFLAGS: 00000282
[   46.673781][    C1] RAX: dffffc0000000000 RBX: ffff888036080000 RCX: 0000000000000001
[   46.674036][    C1] RDX: ffffffffa0aa9459 RSI: ffff8880077fcff0 RDI: ffff8880360b84e0
[   46.674301][    C1] RBP: 00007ff5e7b800e8 R08: 0000000000000000 R09: ffff8880077fcff0
[   46.674557][    C1] R10: 1ffff92000179dd6 R11: ffffc90000bcf199 R12: 00007ff5e7b800e8
[   46.674828][    C1] R13: 0000000000000000 R14: ffff8880077fc5c0 R15: 0000000000092c40
[ 46.675084][ C1] ? __is_insn_slot_addr (./include/linux/rcupdate.h:329 ./include/linux/rcupdate.h:781 kernel/kprobes.c:301) 
[ 46.675368][ C1] __is_insn_slot_addr (./include/linux/rcupdate.h:782 kernel/kprobes.c:301) 
[ 46.675546][ C1] kernel_text_address (kernel/extable.c:123 kernel/extable.c:94) 
[ 46.675756][ C1] __kernel_text_address (kernel/extable.c:79) 
[ 46.675929][ C1] unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) 
[ 46.676102][ C1] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) 
[ 46.676422][ C1] arch_stack_walk (arch/x86/kernel/stacktrace.c:26) 
[ 46.676597][ C1] stack_trace_save (kernel/stacktrace.c:123) 
[ 46.676765][ C1] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 46.676935][ C1] ? find_held_lock (kernel/locking/lockdep.c:5244) 
[ 46.677228][ C1] kasan_save_stack (mm/kasan/common.c:48) 
[ 46.677403][ C1] ? kasan_save_stack (mm/kasan/common.c:48) 
[ 46.677573][ C1] ? kasan_save_track (./arch/x86/include/asm/current.h:49 mm/kasan/common.c:60 mm/kasan/common.c:69) 
[ 46.677739][ C1] ? __kasan_slab_alloc (mm/kasan/common.c:341) 
[ 46.678020][ C1] ? kmem_cache_alloc (./include/linux/kasan.h:201 mm/slub.c:3798 mm/slub.c:3845 mm/slub.c:3852) 
[ 46.678190][ C1] ? __alloc_object (mm/kmemleak.c:466 mm/kmemleak.c:645) 
[ 46.678358][ C1] ? __create_object (mm/kmemleak.c:750) 
[ 46.678526][ C1] ? __kmalloc (./include/linux/kmemleak.h:42 mm/slub.c:3802 mm/slub.c:3845 mm/slub.c:3965 mm/slub.c:3979) 
[ 46.678806][ C1] ? p9_fcall_init (net/9p/client.c:232) 
[ 46.678982][ C1] ? p9_tag_alloc (net/9p/client.c:297) 
[ 46.679148][ C1] ? p9_client_prepare_req (net/9p/client.c:641) 
[ 46.679316][ C1] ? p9_client_rpc (net/9p/client.c:688 (discriminator 4)) 
[ 46.679481][ C1] ? p9_client_clunk (net/9p/client.c:1438 (discriminator 3)) 
[ 46.679647][ C1] ? v9fs_dentry_release (fs/9p/vfs_dentry.c:54) 
[ 46.679815][ C1] ? __dentry_kill (fs/dcache.c:608) 
[ 46.679998][ C1] ? dput.part.0 (fs/dcache.c:845) 
[ 46.680164][ C1] ? walk_component (fs/namei.c:562 fs/namei.c:1027 fs/namei.c:2009) 
[ 46.680443][ C1] ? link_path_walk.part.0.constprop.0 (fs/namei.c:2328) 
[ 46.680656][ C1] ? path_openat (fs/namei.c:3795) 
[ 46.680830][ C1] ? do_filp_open (fs/namei.c:3826) 
[ 46.681000][ C1] ? do_sys_openat2 (fs/open.c:1406) 
[ 46.681282][ C1] ? __x64_sys_openat (fs/open.c:1432) 
[ 46.681449][ C1] ? do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 46.681617][ C1] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129) 
[ 46.681826][ C1] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4300 kernel/locking/lockdep.c:4359) 
[ 46.682258][ C1] ? get_partial_node.part.0 (mm/slub.c:2623) 
[ 46.682436][ C1] ? ___slab_alloc (mm/slub.c:2583 mm/slub.c:2701 mm/slub.c:3505) 
[ 46.682603][ C1] ? fs_reclaim_acquire (mm/page_alloc.c:3715 mm/page_alloc.c:3706) 
[ 46.682772][ C1] ? __alloc_object (mm/kmemleak.c:466 mm/kmemleak.c:645) 
[ 46.683054][ C1] ? __pfx___lock_release (kernel/locking/lockdep.c:5406) 
[ 46.683226][ C1] kasan_save_track (./arch/x86/include/asm/current.h:49 mm/kasan/common.c:60 mm/kasan/common.c:69) 
[ 46.683394][ C1] __kasan_slab_alloc (mm/kasan/common.c:341) 
[ 46.683566][ C1] kmem_cache_alloc (./include/linux/kasan.h:201 mm/slub.c:3798 mm/slub.c:3845 mm/slub.c:3852) 
[ 46.683864][ C1] ? p9_fcall_init (net/9p/client.c:232) 
[ 46.684039][ C1] __alloc_object (mm/kmemleak.c:466 mm/kmemleak.c:645) 
[ 46.684207][ C1] ? p9_fcall_init (net/9p/client.c:232) 
[ 46.684372][ C1] __create_object (mm/kmemleak.c:750) 
[ 46.684542][ C1] ? p9_fcall_init (net/9p/client.c:232) 
[ 46.684708][ C1] __kmalloc (./include/linux/kmemleak.h:42 mm/slub.c:3802 mm/slub.c:3845 mm/slub.c:3965 mm/slub.c:3979) 
[ 46.684865][ C1] p9_fcall_init (net/9p/client.c:232) 
[ 46.685035][ C1] p9_tag_alloc (net/9p/client.c:297) 
[ 46.685203][ C1] ? __pfx_p9_tag_alloc (net/9p/client.c:277) 
[ 46.685489][ C1] ? validate_chain (./include/linux/hash.h:78 kernel/locking/lockdep.c:3759 kernel/locking/lockdep.c:3782 kernel/locking/lockdep.c:3837) 
[ 46.685673][ C1] ? hlock_class (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 kernel/locking/lockdep.c:228) 
[ 46.685844][ C1] p9_client_prepare_req (net/9p/client.c:641) 
[ 46.686011][ C1] ? hlock_class (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 kernel/locking/lockdep.c:228) 
[ 46.686288][ C1] ? __pfx_p9_client_prepare_req (net/9p/client.c:625) 
[ 46.686504][ C1] ? __lock_acquire (kernel/locking/lockdep.c:5137) 
[ 46.686676][ C1] p9_client_rpc (net/9p/client.c:688 (discriminator 4)) 
[ 46.686845][ C1] ? __pfx_p9_client_rpc (net/9p/client.c:672) 
[ 46.687125][ C1] ? __lock_release (kernel/locking/lockdep.c:5430) 
[ 46.687291][ C1] ? list_lru_add (mm/list_lru.c:106) 
[ 46.687474][ C1] ? __pfx___lock_release (kernel/locking/lockdep.c:5406) 
[ 46.687648][ C1] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) 
[ 46.687928][ C1] ? find_held_lock (kernel/locking/lockdep.c:5244) 
[ 46.688097][ C1] ? __lock_release (kernel/locking/lockdep.c:5430) 
[ 46.688276][ C1] ? __pfx___lock_release (kernel/locking/lockdep.c:5406) 
[ 46.688444][ C1] p9_client_clunk (net/9p/client.c:1438 (discriminator 3)) 
[ 46.688732][ C1] v9fs_dentry_release (fs/9p/vfs_dentry.c:54) 
[ 46.688902][ C1] __dentry_kill (fs/dcache.c:608) 
[ 46.689078][ C1] ? __pfx_kfree_link (fs/libfs.c:1573) 
[ 46.689248][ C1] dput.part.0 (fs/dcache.c:845) 
[ 46.689416][ C1] walk_component (fs/namei.c:562 fs/namei.c:1027 fs/namei.c:2009) 
[ 46.689596][ C1] link_path_walk.part.0.constprop.0 (fs/namei.c:2328) 
[ 46.689806][ C1] ? __pfx_link_path_walk.part.0.constprop.0 (fs/namei.c:2249) 
[ 46.690053][ C1] path_openat (fs/namei.c:3795) 
[ 46.690334][ C1] ? __pfx_path_openat (fs/namei.c:3781) 
[ 46.690524][ C1] ? __lock_acquire (kernel/locking/lockdep.c:5137) 
[ 46.690747][ C1] do_filp_open (fs/namei.c:3826) 
[ 46.690932][ C1] ? __pfx_do_filp_open (fs/namei.c:3820) 
[ 46.691109][ C1] ? find_held_lock (kernel/locking/lockdep.c:5244) 
[ 46.691391][ C1] ? __pfx_kfree_link (fs/libfs.c:1573) 
[ 46.691582][ C1] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 46.691751][ C1] ? alloc_fd (fs/file.c:555 (discriminator 10)) 
[ 46.691881][ C1] ? do_raw_spin_unlock (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) 
[ 46.692161][ C1] ? _raw_spin_unlock (./arch/x86/include/asm/preempt.h:94 ./include/linux/spinlock_api_smp.h:143 kernel/locking/spinlock.c:186) 
[ 46.692329][ C1] ? alloc_fd (fs/file.c:555 (discriminator 10)) 
[ 46.692465][ C1] do_sys_openat2 (fs/open.c:1406) 
[ 46.692634][ C1] ? vfs_fstatat (fs/stat.c:308) 
[ 46.692816][ C1] ? __pfx_do_sys_openat2 (fs/open.c:1392) 
[ 46.693098][ C1] ? __pfx___do_sys_newfstatat (fs/stat.c:464) 
[ 46.693267][ C1] __x64_sys_openat (fs/open.c:1432) 
[ 46.693434][ C1] ? __pfx___x64_sys_openat (fs/open.c:1432) 
[ 46.693615][ C1] ? __pfx_do_faccessat (fs/open.c:465) 
[ 46.693899][ C1] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 46.694077][ C1] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129) 
[   46.694284][    C1] RIP: 0033:0x7ff5e7b800e8
[ 46.694459][ C1] Code: f9 41 89 f0 41 83 e2 40 75 30 89 f0 25 00 00 41 00 3d 00 00 41 00 74 22 44 89 c2 4c 89 ce bf 9c ff ff ff b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 77 30 c3 0f 1f 80 00 00 00 00 48 8d 44 24 08 c7
All code
========
   0:	f9                   	stc
   1:	41 89 f0             	mov    %esi,%r8d
   4:	41 83 e2 40          	and    $0x40,%r10d
   8:	75 30                	jne    0x3a
   a:	89 f0                	mov    %esi,%eax
   c:	25 00 00 41 00       	and    $0x410000,%eax
  11:	3d 00 00 41 00       	cmp    $0x410000,%eax
  16:	74 22                	je     0x3a
  18:	44 89 c2             	mov    %r8d,%edx
  1b:	4c 89 ce             	mov    %r9,%rsi
  1e:	bf 9c ff ff ff       	mov    $0xffffff9c,%edi
  23:	b8 01 01 00 00       	mov    $0x101,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 30                	ja     0x62
  32:	c3                   	ret
  33:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  3a:	48 8d 44 24 08       	lea    0x8(%rsp),%rax
  3f:	c7                   	.byte 0xc7

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 30                	ja     0x38
   8:	c3                   	ret
   9:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  10:	48 8d 44 24 08       	lea    0x8(%rsp),%rax
  15:	c7                   	.byte 0xc7
[   46.695077][    C1] RSP: 002b:00007fff968686e8 EFLAGS: 00000287 ORIG_RAX: 0000000000000101
[   46.695574][    C1] RAX: ffffffffffffffda RBX: 00007fff9686896f RCX: 00007ff5e7b800e8
[   46.695853][    C1] RDX: 0000000000080000 RSI: 00007fff96868760 RDI: 00000000ffffff9c
[   46.696103][    C1] RBP: 00007fff96868750 R08: 0000000000080000 R09: 00007fff96868760
[   46.696469][    C1] R10: 0000000000000000 R11: 0000000000000287 R12: 00007fff96868767


Finger prints:
dump_stack_lvl:mark_lock_irq:mark_lock:mark_usage