======================================
| [ 44.877789][ C3] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129)
| [ 44.878057][ C3]
| [ 44.878166][ C3]
| [ 44.878166][ C3] stack backtrace:
[ 44.878908][ C3] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 44.879390][ C3] Call Trace:
[ 44.879553][ C3]
[ 44.879674][ C3] dump_stack_lvl (lib/dump_stack.c:117)
[ 44.880043][ C3] print_irq_inversion_bug.part.0 (kernel/locking/lockdep.c:4024)
[ 44.880315][ C3] ? __pfx_print_irq_inversion_bug.part.0 (kernel/locking/lockdep.c:4024)
[ 44.880586][ C3] ? __pfx_usage_skip (kernel/locking/lockdep.c:2264)
[ 44.880942][ C3] ? __pfx_usage_match (kernel/locking/lockdep.c:2256)
[ 44.881156][ C3] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26)
[ 44.881376][ C3] mark_lock_irq (kernel/locking/lockdep.c:4244)
[ 44.881598][ C3] ? __pfx_mark_lock_irq (kernel/locking/lockdep.c:4207)
[ 44.881749][ C3] ? stack_trace_save (kernel/stacktrace.c:123)
[ 44.881978][ C3] ? add_chain_cache (kernel/locking/lockdep.c:3730)
[ 44.882121][ C3] ? save_trace (kernel/locking/lockdep.c:586)
[ 44.882263][ C3] mark_lock (kernel/locking/lockdep.c:4678)
[ 44.882371][ C3] mark_usage (kernel/locking/lockdep.c:4567)
[ 44.882564][ C3] __lock_acquire (kernel/locking/lockdep.c:5091)
[ 44.882707][ C3] ? __lock_acquire (kernel/locking/lockdep.c:5137)
[ 44.882847][ C3] ? __pfx_br_forward_delay_timer_expired (net/bridge/br_stp_timer.c:80) bridge
[ 44.883095][ C3] lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756)
[ 44.883325][ C3] ? br_forward_delay_timer_expired (net/bridge/br_stp_timer.c:87) bridge
[ 44.883538][ C3] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719)
[ 44.883678][ C3] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 52))
[ 44.883819][ C3] ? br_forward_delay_timer_expired (net/bridge/br_stp_timer.c:87) bridge
[ 44.884116][ C3] ? lock_acquire (kernel/locking/lockdep.c:5727)
[ 44.884257][ C3] ? br_forward_delay_timer_expired (net/bridge/br_stp_timer.c:87) bridge
[ 44.884470][ C3] _raw_spin_lock (./include/linux/spinlock_api_smp.h:134 kernel/locking/spinlock.c:154)
[ 44.884617][ C3] ? br_forward_delay_timer_expired (net/bridge/br_stp_timer.c:87) bridge
[ 44.884912][ C3] br_forward_delay_timer_expired (net/bridge/br_stp_timer.c:87) bridge
[ 44.885125][ C3] ? __pfx_br_forward_delay_timer_expired (net/bridge/br_stp_timer.c:80) bridge
[ 44.885370][ C3] call_timer_fn (kernel/time/timer.c:1793)
[ 44.885594][ C3] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1783)
[ 44.885734][ C3] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1783)
[ 44.885874][ C3] ? __pfx_call_timer_fn (kernel/time/timer.c:1770)
[ 44.886019][ C3] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3))
[ 44.886134][ C3] __run_timers (kernel/time/timer.c:1845 kernel/time/timer.c:2418)
[ 44.886360][ C3] ? __pfx_br_forward_delay_timer_expired (net/bridge/br_stp_timer.c:80) bridge
[ 44.886607][ C3] ? __pfx___run_timers (kernel/time/timer.c:2389)
[ 44.886750][ C3] ? 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)
[ 44.886975][ C3] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114)
[ 44.887115][ C3] ? lock_acquire (kernel/locking/lockdep.c:5727)
[ 44.887255][ C3] ? run_timer_softirq (kernel/time/timer.c:2429 kernel/time/timer.c:2422 kernel/time/timer.c:2438 kernel/time/timer.c:2448)
[ 44.887402][ C3] run_timer_softirq (kernel/time/timer.c:2430 kernel/time/timer.c:2422 kernel/time/timer.c:2438 kernel/time/timer.c:2448)
[ 44.887546][ C3] __do_softirq (kernel/softirq.c:554)
[ 44.887772][ C3] irq_exit_rcu (kernel/softirq.c:428 kernel/softirq.c:633 kernel/softirq.c:645)
[ 44.887879][ C3] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1043 arch/x86/kernel/apic/apic.c:1043)
[ 44.888020][ C3]
[ 44.888093][ C3]
[ 44.888167][ C3] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702)
[ 44.888434][ C3] RIP: 0010:__d_lookup_rcu (fs/dcache.c:2171)
[ 44.888581][ C3] Code: 04 24 e8 13 1a f5 ff 48 8b 04 24 eb aa 66 66 2e 0f 1f 84 00 00 00 00 00 66 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 <66> 0f 1f 00 0f 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 41 57 41
All code
========
0: 04 24 add $0x24,%al
2: e8 13 1a f5 ff call 0xfffffffffff51a1a
7: 48 8b 04 24 mov (%rsp),%rax
b: eb aa jmp 0xffffffffffffffb7
d: 66 66 2e 0f 1f 84 00 data16 cs nopw 0x0(%rax,%rax,1)
14: 00 00 00 00
18: 66 90 xchg %ax,%ax
1a: 90 nop
1b: 90 nop
1c: 90 nop
1d: 90 nop
1e: 90 nop
1f: 90 nop
20: 90 nop
21: 90 nop
22: 90 nop
23: 90 nop
24: 90 nop
25: 90 nop
26: 90 nop
27: 90 nop
28: 90 nop
29: 90 nop
2a:* 66 0f 1f 00 nopw (%rax) <-- trapping instruction
2e: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1)
33: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax
3a: fc ff df
3d: 41 57 push %r15
3f: 41 rex.B
Code starting with the faulting instruction
===========================================
0: 66 0f 1f 00 nopw (%rax)
4: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1)
9: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax
10: fc ff df
13: 41 57 push %r15
15: 41 rex.B
[ 44.889171][ C3] RSP: 0018:ffffc9000075f9e0 EFLAGS: 00000202
[ 44.889352][ C3] RAX: 0000000000000000 RBX: ffff888006544665 RCX: 00000000b41335e0
[ 44.889563][ C3] RDX: ffffc9000075fc74 RSI: ffffc9000075fc40 RDI: ffff8880015ccba0
[ 44.889864][ C3] RBP: ffffc9000075fc30 R08: 0000000000000000 R09: 8080808080808080
[ 44.890076][ C3] R10: fefefefefefefeff R11: d0918a8dd08d9e89 R12: ffffc9000075fc80
[ 44.890290][ C3] R13: ffff8880015ccba0 R14: ffffc9000075fc68 R15: 0000000000000003
[ 44.890588][ C3] lookup_fast (fs/namei.c:1627)
[ 44.890696][ C3] walk_component (fs/namei.c:2000)
[ 44.890836][ C3] link_path_walk.part.0.constprop.0 (fs/namei.c:2331)
[ 44.891017][ C3] ? __pfx_link_path_walk.part.0.constprop.0 (fs/namei.c:2249)
[ 44.891280][ C3] path_openat (fs/namei.c:3795)
[ 44.891422][ C3] ? __pfx_path_openat (fs/namei.c:3781)
[ 44.891574][ C3] ? __lock_acquire (kernel/locking/lockdep.c:5137)
[ 44.891722][ C3] do_filp_open (fs/namei.c:3826)
[ 44.891946][ C3] ? __pfx_do_filp_open (fs/namei.c:3820)
[ 44.892087][ C3] ? find_held_lock (kernel/locking/lockdep.c:5244)
[ 44.892229][ C3] ? 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)
[ 44.892368][ C3] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114)
[ 44.892599][ C3] ? alloc_fd (fs/file.c:555 (discriminator 10))
[ 44.892708][ C3] ? 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)
[ 44.892850][ C3] ? _raw_spin_unlock (./arch/x86/include/asm/preempt.h:94 ./include/linux/spinlock_api_smp.h:143 kernel/locking/spinlock.c:186)
[ 44.892990][ C3] ? alloc_fd (fs/file.c:555 (discriminator 10))
[ 44.893099][ C3] do_sys_openat2 (fs/open.c:1406)
[ 44.893324][ C3] ? __pfx_do_sys_openat2 (fs/open.c:1392)
[ 44.893465][ C3] ? __pfx___do_sys_newfstatat (fs/stat.c:464)
[ 44.893609][ C3] __x64_sys_openat (fs/open.c:1432)
[ 44.893755][ C3] ? __pfx___x64_sys_openat (fs/open.c:1432)
[ 44.893986][ C3] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83)
[ 44.894128][ C3] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129)
[ 44.894303][ C3] RIP: 0033:0x7f35a68a152c
[ 44.894448][ C3] Code: 24 18 31 c0 41 83 e2 40 75 44 89 f0 25 00 00 41 00 3d 00 00 41 00 74 36 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 44 48 8b 54 24 18 64 48 2b 14 25 28 00 00 00
All code
========
0: 24 18 and $0x18,%al
2: 31 c0 xor %eax,%eax
4: 41 83 e2 40 and $0x40,%r10d
8: 75 44 jne 0x4e
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 36 je 0x4e
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 44 ja 0x76
32: 48 8b 54 24 18 mov 0x18(%rsp),%rdx
37: 64 48 2b 14 25 28 00 sub %fs:0x28,%rdx
3e: 00 00
Code starting with the faulting instruction
===========================================
0: 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax
6: 77 44 ja 0x4c
8: 48 8b 54 24 18 mov 0x18(%rsp),%rdx
d: 64 48 2b 14 25 28 00 sub %fs:0x28,%rdx
14: 00 00
[ 44.895037][ C3] RSP: 002b:00007fffe0b5b220 EFLAGS: 00000287 ORIG_RAX: 0000000000000101
[ 44.895338][ C3] RAX: ffffffffffffffda RBX: 00007fffe0b5d400 RCX: 00007f35a68a152c
[ 44.895547][ C3] RDX: 0000000000090800 RSI: 00000000004711e7 RDI: 00000000ffffff9c
[ 44.895757][ C3] RBP: 00007fffe0b629bb R08: 0000000000090800 R09: 00000000004711e7
[ 44.896051][ C3] R10: 0000000000000000 R11: 0000000000000287 R12: 0000000000000006
Finger prints:
dump_stack_lvl:mark_lock_irq:mark_lock:mark_usage