======================================
| [ 37.793715][ C0] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129)
| [ 37.793947][ C0]
| [ 37.794029][ C0]
| [ 37.794029][ C0] stack backtrace:
[ 37.794558][ C0] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 37.794908][ C0] Call Trace:
[ 37.795130][ C0]
[ 37.795213][ C0] dump_stack_lvl (lib/dump_stack.c:117)
[ 37.795375][ C0] print_irq_inversion_bug.part.0 (kernel/locking/lockdep.c:4024)
[ 37.795575][ C0] ? __pfx_print_irq_inversion_bug.part.0 (kernel/locking/lockdep.c:4024)
[ 37.795780][ C0] ? __pfx_usage_skip (kernel/locking/lockdep.c:2264)
[ 37.795948][ C0] ? __pfx_usage_match (kernel/locking/lockdep.c:2256)
[ 37.796110][ C0] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26)
[ 37.796272][ C0] mark_lock_irq (kernel/locking/lockdep.c:4244)
[ 37.796431][ C0] ? __pfx_mark_lock_irq (kernel/locking/lockdep.c:4207)
[ 37.796797][ C0] ? stack_trace_save (kernel/stacktrace.c:123)
[ 37.796964][ C0] ? save_trace (kernel/locking/lockdep.c:586)
[ 37.797129][ C0] mark_lock (kernel/locking/lockdep.c:4678)
[ 37.797252][ C0] mark_usage (kernel/locking/lockdep.c:4567)
[ 37.797372][ C0] __lock_acquire (kernel/locking/lockdep.c:5091)
[ 37.797753][ C0] lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756)
[ 37.797922][ C0] ? ipv6_get_lladdr (net/ipv6/addrconf.c:1911 net/ipv6/addrconf.c:1934)
[ 37.798081][ C0] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719)
[ 37.798240][ C0] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 52))
[ 37.798497][ C0] ? ipv6_get_lladdr (net/ipv6/addrconf.c:1911 net/ipv6/addrconf.c:1934)
[ 37.798657][ C0] ? lock_acquire (kernel/locking/lockdep.c:5727)
[ 37.798815][ C0] ? ipv6_get_lladdr (net/ipv6/addrconf.c:1911 net/ipv6/addrconf.c:1934)
[ 37.798972][ C0] _raw_read_lock_bh (./include/linux/rwlock_api_smp.h:177 kernel/locking/spinlock.c:252)
[ 37.799256][ C0] ? ipv6_get_lladdr (net/ipv6/addrconf.c:1911 net/ipv6/addrconf.c:1934)
[ 37.799413][ C0] ipv6_get_lladdr (net/ipv6/addrconf.c:1911 net/ipv6/addrconf.c:1934)
[ 37.799569][ C0] ndisc_send_ns (net/ipv6/ndisc.c:658)
[ 37.799729][ C0] ? __pfx_ndisc_send_ns (net/ipv6/ndisc.c:653)
[ 37.799889][ C0] ? __ipv6_chk_addr_and_flags (net/ipv6/addrconf.c:2009)
[ 37.800086][ C0] ndisc_solicit (net/ipv6/ndisc.c:736)
[ 37.800280][ C0] ? __pfx_ndisc_solicit (net/ipv6/ndisc.c:736)
[ 37.800451][ C0] ? neigh_probe (net/core/neighbour.c:1074)
[ 37.800626][ C0] neigh_probe (net/core/neighbour.c:1075)
[ 37.800753][ C0] neigh_timer_handler (net/core/neighbour.c:1163)
[ 37.800934][ C0] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1783)
[ 37.801102][ C0] ? __pfx_neigh_timer_handler (net/core/neighbour.c:1083)
[ 37.801259][ C0] call_timer_fn (kernel/time/timer.c:1793)
[ 37.801516][ C0] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1783)
[ 37.801671][ C0] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1783)
[ 37.801844][ C0] ? __pfx_call_timer_fn (kernel/time/timer.c:1770)
[ 37.802000][ C0] ? 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)
[ 37.802274][ C0] ? mark_held_locks (kernel/locking/lockdep.c:4274)
[ 37.802432][ C0] __run_timers (kernel/time/timer.c:1845 kernel/time/timer.c:2418)
[ 37.802589][ C0] ? __pfx_neigh_timer_handler (net/core/neighbour.c:1083)
[ 37.802746][ C0] ? __pfx___run_timers (kernel/time/timer.c:2389)
[ 37.802908][ C0] ? 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)
[ 37.803067][ C0] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114)
[ 37.803227][ C0] ? lock_acquire (kernel/locking/lockdep.c:5727)
[ 37.803394][ C0] ? run_timer_softirq (kernel/time/timer.c:2429 kernel/time/timer.c:2422 kernel/time/timer.c:2438 kernel/time/timer.c:2448)
[ 37.803553][ C0] run_timer_softirq (kernel/time/timer.c:2430 kernel/time/timer.c:2422 kernel/time/timer.c:2438 kernel/time/timer.c:2448)
[ 37.803710][ C0] __do_softirq (kernel/softirq.c:554)
[ 37.803868][ C0] irq_exit_rcu (kernel/softirq.c:428 kernel/softirq.c:633 kernel/softirq.c:645)
[ 37.803990][ C0] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1043 arch/x86/kernel/apic/apic.c:1043)
[ 37.804148][ C0]
[ 37.804235][ C0]
[ 37.804419][ C0] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702)
[ 37.804617][ C0] RIP: 0010:_raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194)
[ 37.804827][ C0] Code: 10 e8 21 49 9b fd 48 89 ef e8 59 b9 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 05 bf 2f 79 <74> 0e 5b 5d c3 cc cc cc cc e8 4f b3 be fd eb dc 0f 1f 44 00 00 5b
All code
========
0: 10 e8 adc %ch,%al
2: 21 49 9b and %ecx,-0x65(%rcx)
5: fd std
6: 48 89 ef mov %rbp,%rdi
9: e8 59 b9 9b fd call 0xfffffffffd9bb967
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 05 bf 2f 79 decl %gs:0x792fbf05(%rip) # 0x792fbf2f
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 4f b3 be fd call 0xfffffffffdbeb387
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 4f b3 be fd call 0xfffffffffdbeb35d
e: eb dc jmp 0xffffffffffffffec
10: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1)
15: 5b pop %rbx
[ 37.805510][ C0] RSP: 0018:ffffc9000069f578 EFLAGS: 00000286
[ 37.805719][ C0] RAX: 0000000000000002 RBX: 0000000000000200 RCX: 1ffffffff13e596e
[ 37.805971][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff86d40911
[ 37.806208][ C0] RBP: ffff888001041080 R08: 0000000000000001 R09: fffffbfff13e38a9
[ 37.806442][ C0] R10: ffffffff89f1c54f R11: 0000000000001000 R12: ffff8880070cc000
[ 37.806678][ C0] R13: 0000000000000000 R14: ffffc9000069f5c8 R15: ffff888006e31000
[ 37.806930][ C0] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194)
[ 37.807143][ C0] qlist_free_all (mm/kasan/quarantine.c:174)
[ 37.807435][ C0] ? p9pdu_vreadf (./include/linux/slab.h:632 net/9p/protocol.c:313)
[ 37.807594][ C0] kasan_quarantine_reduce (./include/linux/srcu.h:285 mm/kasan/quarantine.c:287)
[ 37.807752][ C0] __kasan_slab_alloc (mm/kasan/common.c:322)
[ 37.807912][ C0] __kmalloc (mm/slub.c:3799 mm/slub.c:3845 mm/slub.c:3965 mm/slub.c:3979)
[ 37.808067][ C0] p9pdu_vreadf (./include/linux/slab.h:632 net/9p/protocol.c:313)
[ 37.808362][ C0] ? trace_9p_client_res (./include/trace/events/9p.h:146 (discriminator 52))
[ 37.808534][ C0] ? p9_client_rpc (net/9p/client.c:755)
[ 37.808712][ C0] ? __pfx_p9pdu_vreadf (net/9p/protocol.c:260)
[ 37.808891][ C0] ? __pfx_p9_client_rpc (net/9p/client.c:672)
[ 37.809048][ C0] p9pdu_readf (net/9p/protocol.c:696)
[ 37.809169][ C0] ? __pfx_p9pdu_readf (net/9p/protocol.c:696)
[ 37.809328][ C0] ? __pfx_v9fs_fid_find (fs/9p/fid.c:114)
[ 37.809486][ C0] ? __pfx_make_vfsgid (fs/mnt_idmapping.c:110)
[ 37.809742][ C0] ? v9fs_fid_add (fs/9p/fid.c:41)
[ 37.809911][ C0] p9_client_readlink (net/9p/client.c:2242)
[ 37.810069][ C0] v9fs_vfs_get_link_dotl (fs/9p/vfs_inode_dotl.c:822 fs/9p/vfs_inode_dotl.c:806)
[ 37.810229][ C0] ? __pfx_v9fs_vfs_get_link_dotl (fs/9p/vfs_inode_dotl.c:809)
[ 37.810527][ C0] ? __lookup_slow (fs/namei.c:1692)
[ 37.810684][ C0] pick_link (fs/namei.c:1808)
[ 37.810802][ C0] ? find_held_lock (kernel/locking/lockdep.c:5244)
[ 37.810976][ C0] step_into (fs/namei.c:1874)
[ 37.811095][ C0] ? __up_read (./arch/x86/include/asm/atomic64_64.h:79 ./include/linux/atomic/atomic-arch-fallback.h:2749 ./include/linux/atomic/atomic-long.h:184 ./include/linux/atomic/atomic-instrumented.h:3317 kernel/locking/rwsem.c:1347)
[ 37.811351][ C0] ? __pfx_step_into (fs/namei.c:1839)
[ 37.811508][ C0] ? walk_component (fs/namei.c:2005)
[ 37.811669][ C0] link_path_walk.part.0.constprop.0 (fs/namei.c:2331)
[ 37.811871][ C0] ? __pfx_link_path_walk.part.0.constprop.0 (fs/namei.c:2249)
[ 37.812166][ C0] path_openat (fs/namei.c:3795)
[ 37.812323][ C0] ? __pfx_path_openat (fs/namei.c:3781)
[ 37.812479][ C0] ? __lock_acquire (kernel/locking/lockdep.c:5137)
[ 37.812637][ C0] do_filp_open (fs/namei.c:3826)
[ 37.812798][ C0] ? __pfx_do_filp_open (fs/namei.c:3820)
[ 37.812954][ C0] ? find_held_lock (kernel/locking/lockdep.c:5244)
[ 37.813114][ C0] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114)
[ 37.813272][ C0] ? alloc_fd (fs/file.c:555 (discriminator 10))
[ 37.813391][ C0] ? 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)
[ 37.813647][ C0] ? _raw_spin_unlock (./arch/x86/include/asm/preempt.h:94 ./include/linux/spinlock_api_smp.h:143 kernel/locking/spinlock.c:186)
[ 37.813811][ C0] ? alloc_fd (fs/file.c:555 (discriminator 10))
[ 37.813931][ C0] do_sys_openat2 (fs/open.c:1406)
[ 37.814087][ C0] ? vfs_fstatat (fs/stat.c:308)
[ 37.814345][ C0] ? __pfx_do_sys_openat2 (fs/open.c:1392)
[ 37.814501][ C0] ? __pfx___do_sys_newfstatat (fs/stat.c:464)
[ 37.814659][ C0] __x64_sys_openat (fs/open.c:1432)
[ 37.814817][ C0] ? __pfx___x64_sys_openat (fs/open.c:1432)
[ 37.815076][ C0] ? __pfx_do_faccessat (fs/open.c:465)
[ 37.815236][ C0] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83)
[ 37.815393][ C0] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129)
[ 37.815588][ C0] RIP: 0033:0x7f509c6f50e8
[ 37.815873][ C0] 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
[ 37.816484][ C0] RSP: 002b:00007fff6bc5c1c8 EFLAGS: 00000287 ORIG_RAX: 0000000000000101
[ 37.816845][ C0] RAX: ffffffffffffffda RBX: 00007fff6bc5c45f RCX: 00007f509c6f50e8
[ 37.817101][ C0] RDX: 0000000000080000 RSI: 00007fff6bc5c240 RDI: 00000000ffffff9c
[ 37.817358][ C0] RBP: 00007fff6bc5c230 R08: 0000000000080000 R09: 00007fff6bc5c240
[ 37.817738][ C0] R10: 0000000000000000 R11: 0000000000000287 R12: 00007fff6bc5c247
Finger prints:
dump_stack_lvl:mark_lock_irq:mark_lock:mark_usage