======================================
| [ 48.496038][ C3] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129)
| [ 48.496318][ C3]
| [ 48.496393][ C3]
| [ 48.496393][ C3] stack backtrace:
[ 48.496808][ C3] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 48.497268][ C3] Call Trace:
[ 48.497399][ C3]
[ 48.497475][ C3] dump_stack_lvl (lib/dump_stack.c:117)
[ 48.497737][ C3] print_irq_inversion_bug.part.0 (kernel/locking/lockdep.c:4024)
[ 48.497934][ C3] ? __pfx_print_irq_inversion_bug.part.0 (kernel/locking/lockdep.c:4024)
[ 48.498132][ C3] ? __pfx_usage_skip (kernel/locking/lockdep.c:2264)
[ 48.498287][ C3] ? __pfx_usage_match (kernel/locking/lockdep.c:2256)
[ 48.498629][ C3] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26)
[ 48.498791][ C3] mark_lock_irq (kernel/locking/lockdep.c:4244)
[ 48.498946][ C3] ? __pfx_mark_lock_irq (kernel/locking/lockdep.c:4207)
[ 48.499102][ C3] ? stack_trace_save (kernel/stacktrace.c:123)
[ 48.499271][ C3] ? add_chain_cache (kernel/locking/lockdep.c:3730)
[ 48.499425][ C3] ? save_trace (kernel/locking/lockdep.c:586)
[ 48.499583][ C3] mark_lock (kernel/locking/lockdep.c:4678)
[ 48.499702][ C3] mark_usage (kernel/locking/lockdep.c:4567)
[ 48.499820][ C3] __lock_acquire (kernel/locking/lockdep.c:5091)
[ 48.499978][ C3] ? __lock_acquire (kernel/locking/lockdep.c:5137)
[ 48.500135][ C3] ? __pfx_br_forward_delay_timer_expired (net/bridge/br_stp_timer.c:80) bridge
[ 48.500403][ C3] lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756)
[ 48.500560][ C3] ? br_forward_delay_timer_expired (net/bridge/br_stp_timer.c:87) bridge
[ 48.500881][ C3] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719)
[ 48.501039][ C3] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 52))
[ 48.501199][ C3] ? br_forward_delay_timer_expired (net/bridge/br_stp_timer.c:87) bridge
[ 48.501425][ C3] ? lock_acquire (kernel/locking/lockdep.c:5727)
[ 48.501672][ C3] ? br_forward_delay_timer_expired (net/bridge/br_stp_timer.c:87) bridge
[ 48.501898][ C3] _raw_spin_lock (./include/linux/spinlock_api_smp.h:134 kernel/locking/spinlock.c:154)
[ 48.502046][ C3] ? br_forward_delay_timer_expired (net/bridge/br_stp_timer.c:87) bridge
[ 48.502284][ C3] br_forward_delay_timer_expired (net/bridge/br_stp_timer.c:87) bridge
[ 48.502512][ C3] ? __pfx_br_forward_delay_timer_expired (net/bridge/br_stp_timer.c:80) bridge
[ 48.502780][ C3] call_timer_fn (kernel/time/timer.c:1793)
[ 48.502948][ C3] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1783)
[ 48.503106][ C3] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1783)
[ 48.503263][ C3] ? __pfx_call_timer_fn (kernel/time/timer.c:1770)
[ 48.503421][ C3] ? 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)
[ 48.503570][ C3] ? mark_held_locks (kernel/locking/lockdep.c:4274)
[ 48.503821][ C3] __run_timers (kernel/time/timer.c:1845 kernel/time/timer.c:2418)
[ 48.503974][ C3] ? __pfx_br_forward_delay_timer_expired (net/bridge/br_stp_timer.c:80) bridge
[ 48.504251][ C3] ? __pfx___run_timers (kernel/time/timer.c:2389)
[ 48.504404][ 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)
[ 48.504651][ C3] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114)
[ 48.504802][ C3] ? lock_acquire (kernel/locking/lockdep.c:5727)
[ 48.504951][ C3] ? run_timer_softirq (kernel/time/timer.c:2429 kernel/time/timer.c:2422 kernel/time/timer.c:2438 kernel/time/timer.c:2448)
[ 48.505106][ C3] run_timer_softirq (kernel/time/timer.c:2430 kernel/time/timer.c:2422 kernel/time/timer.c:2438 kernel/time/timer.c:2448)
[ 48.505256][ C3] __do_softirq (kernel/softirq.c:554)
[ 48.505405][ C3] irq_exit_rcu (kernel/softirq.c:428 kernel/softirq.c:633 kernel/softirq.c:645)
[ 48.505524][ C3] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1043 arch/x86/kernel/apic/apic.c:1043)
[ 48.505676][ C3]
[ 48.505753][ C3]
[ 48.505833][ C3] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702)
[ 48.506022][ C3] RIP: 0010:_raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194)
[ 48.506221][ C3] Code: 10 e8 11 39 9b fd 48 89 ef e8 49 a9 9b fd 81 e3 00 02 00 00 75 1d 9c 58 f6 c4 02 75 29 48 85 db 74 01 fb 65 ff 0d f5 ae ef 71 <74> 0e 5b 5d c3 cc cc cc cc e8 3f a3 be fd eb dc 0f 1f 44 00 00 5b
All code
========
0: 10 e8 adc %ch,%al
2: 11 39 adc %edi,(%rcx)
4: 9b fwait
5: fd std
6: 48 89 ef mov %rbp,%rdi
9: e8 49 a9 9b fd call 0xfffffffffd9ba957
e: 81 e3 00 02 00 00 and $0x200,%ebx
14: 75 1d jne 0x33
16: 9c pushf
17: 58 pop %rax
18: f6 c4 02 test $0x2,%ah
1b: 75 29 jne 0x46
1d: 48 85 db test %rbx,%rbx
20: 74 01 je 0x23
22: fb sti
23: 65 ff 0d f5 ae ef 71 decl %gs:0x71efaef5(%rip) # 0x71efaf1f
2a:* 74 0e je 0x3a <-- trapping instruction
2c: 5b pop %rbx
2d: 5d pop %rbp
2e: c3 ret
2f: cc int3
30: cc int3
31: cc int3
32: cc int3
33: e8 3f a3 be fd call 0xfffffffffdbea377
38: eb dc jmp 0x16
3a: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1)
3f: 5b pop %rbx
Code starting with the faulting instruction
===========================================
0: 74 0e je 0x10
2: 5b pop %rbx
3: 5d pop %rbp
4: c3 ret
5: cc int3
6: cc int3
7: cc int3
8: cc int3
9: e8 3f a3 be fd call 0xfffffffffdbea34d
e: eb dc jmp 0xffffffffffffffec
10: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1)
15: 5b pop %rbx
[ 48.506871][ C3] RSP: 0018:ffffc900005df688 EFLAGS: 00000286
[ 48.507057][ C3] RAX: 0000000000000006 RBX: 0000000000000200 RCX: 1ffffffff2268271
[ 48.507294][ C3] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff8e141921
[ 48.507523][ C3] RBP: ffffffff8f52a240 R08: 0000000000000001 R09: fffffbfff2263caf
[ 48.507748][ C3] R10: ffffffff9131e57f R11: ffffc900005df319 R12: 0000000000000000
[ 48.507978][ C3] R13: 0000000000000246 R14: ffff8880010424c0 R15: 0000000000000000
[ 48.508207][ C3] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194)
[ 48.508398][ C3] delete_object_full (mm/kmemleak.c:817)
[ 48.508549][ C3] kfree (./include/linux/kmemleak.h:48 mm/slub.c:2072 mm/slub.c:4280 mm/slub.c:4390)
[ 48.508758][ C3] ? p9_client_walk (net/9p/client.c:1201)
[ 48.508908][ C3] ? p9_req_put (net/9p/client.c:410)
[ 48.509062][ C3] p9_client_walk (net/9p/client.c:1201)
[ 48.509222][ C3] ? __pfx_p9_client_walk (net/9p/client.c:1143)
[ 48.509472][ C3] ? d_alloc_parallel (./arch/x86/include/asm/bitops.h:94 ./arch/x86/include/asm/bitops.h:112 ./include/asm-generic/bitops/instrumented-lock.h:43 ./include/linux/bit_spinlock.h:80 ./include/linux/list_bl.h:153 fs/dcache.c:2556)
[ 48.509626][ C3] ? v9fs_fid_lookup_with_uid (fs/9p/fid.c:181)
[ 48.509783][ C3] ? v9fs_vfs_lookup.part.0 (fs/9p/vfs_inode.c:676)
[ 48.509934][ C3] v9fs_vfs_lookup.part.0 (fs/9p/vfs_inode.c:676)
[ 48.510269][ C3] ? __pfx_v9fs_vfs_lookup.part.0 (fs/9p/vfs_inode.c:649)
[ 48.510455][ C3] ? lockdep_init_map_type (kernel/locking/lockdep.c:4892)
[ 48.510613][ C3] __lookup_slow (fs/namei.c:1692)
[ 48.510773][ C3] ? __pfx___lookup_slow (fs/namei.c:1668)
[ 48.511023][ C3] ? walk_component (fs/namei.c:1709 fs/namei.c:2004)
[ 48.511178][ C3] walk_component (./include/linux/fs.h:808 fs/namei.c:1710 fs/namei.c:2004)
[ 48.511335][ C3] link_path_walk.part.0.constprop.0 (fs/namei.c:2331)
[ 48.511529][ C3] ? __pfx_link_path_walk.part.0.constprop.0 (fs/namei.c:2249)
[ 48.511817][ C3] path_openat (fs/namei.c:3795)
[ 48.511978][ C3] ? __pfx_path_openat (fs/namei.c:3781)
[ 48.512133][ C3] ? __lock_acquire (kernel/locking/lockdep.c:5137)
[ 48.512291][ C3] do_filp_open (fs/namei.c:3826)
[ 48.512536][ C3] ? __pfx_do_filp_open (fs/namei.c:3820)
[ 48.512692][ C3] ? find_held_lock (kernel/locking/lockdep.c:5244)
[ 48.512846][ 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)
[ 48.512997][ C3] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114)
[ 48.513149][ C3] ? alloc_fd (fs/file.c:555 (discriminator 10))
[ 48.513354][ 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)
[ 48.513508][ C3] ? _raw_spin_unlock (./arch/x86/include/asm/preempt.h:94 ./include/linux/spinlock_api_smp.h:143 kernel/locking/spinlock.c:186)
[ 48.513673][ C3] ? alloc_fd (fs/file.c:555 (discriminator 10))
[ 48.513790][ C3] do_sys_openat2 (fs/open.c:1406)
[ 48.514042][ C3] ? vfs_fstatat (fs/stat.c:308)
[ 48.514202][ C3] ? __pfx_do_sys_openat2 (fs/open.c:1392)
[ 48.514350][ C3] ? __pfx___do_sys_newfstatat (fs/stat.c:464)
[ 48.514500][ C3] __x64_sys_openat (fs/open.c:1432)
[ 48.514648][ C3] ? __pfx___x64_sys_openat (fs/open.c:1432)
[ 48.514885][ C3] ? __pfx_do_faccessat (fs/open.c:465)
[ 48.515040][ C3] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83)
[ 48.515196][ C3] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129)
[ 48.515383][ C3] RIP: 0033:0x7fd1dba890e8
[ 48.515629][ C3] 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
[ 48.516268][ C3] RSP: 002b:00007ffeca215558 EFLAGS: 00000287 ORIG_RAX: 0000000000000101
[ 48.516504][ C3] RAX: ffffffffffffffda RBX: 00007ffeca2157df RCX: 00007fd1dba890e8
[ 48.516732][ C3] RDX: 0000000000080000 RSI: 00007ffeca2155d0 RDI: 00000000ffffff9c
[ 48.517060][ C3] RBP: 00007ffeca2155c0 R08: 0000000000080000 R09: 00007ffeca2155d0
[ 48.517285][ C3] R10: 0000000000000000 R11: 0000000000000287 R12: 00007ffeca2155d7
Finger prints:
dump_stack_lvl:mark_lock_irq:mark_lock:mark_usage