======================================
| [ 38.301007][ C3] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129)
| [ 38.301218][ C3]
| [ 38.301308][ C3]
| [ 38.301308][ C3] stack backtrace:
[ 38.301887][ C3] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 38.302267][ C3] Call Trace:
[ 38.302397][ C3]
[ 38.302486][ C3] dump_stack_lvl (lib/dump_stack.c:117)
[ 38.302662][ C3] print_irq_inversion_bug.part.0 (kernel/locking/lockdep.c:4024)
[ 38.302878][ C3] ? __pfx_print_irq_inversion_bug.part.0 (kernel/locking/lockdep.c:4024)
[ 38.303204][ C3] ? __pfx_usage_skip (kernel/locking/lockdep.c:2264)
[ 38.303373][ C3] ? __pfx_usage_match (kernel/locking/lockdep.c:2256)
[ 38.303543][ C3] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26)
[ 38.303720][ C3] mark_lock_irq (kernel/locking/lockdep.c:4244)
[ 38.304010][ C3] ? __pfx_mark_lock_irq (kernel/locking/lockdep.c:4207)
[ 38.304179][ C3] ? stack_trace_save (kernel/stacktrace.c:123)
[ 38.304352][ C3] ? save_trace (kernel/locking/lockdep.c:586)
[ 38.304527][ C3] mark_lock (kernel/locking/lockdep.c:4678)
[ 38.304881][ C3] mark_usage (kernel/locking/lockdep.c:4567)
[ 38.305018][ C3] __lock_acquire (kernel/locking/lockdep.c:5091)
[ 38.305190][ C3] lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756)
[ 38.305361][ C3] ? ipv6_get_lladdr (net/ipv6/addrconf.c:1911 net/ipv6/addrconf.c:1934)
[ 38.305533][ C3] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719)
[ 38.305814][ C3] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 52))
[ 38.305983][ C3] ? ipv6_get_lladdr (net/ipv6/addrconf.c:1911 net/ipv6/addrconf.c:1934)
[ 38.306154][ C3] ? lock_acquire (kernel/locking/lockdep.c:5727)
[ 38.306330][ C3] ? ipv6_get_lladdr (net/ipv6/addrconf.c:1911 net/ipv6/addrconf.c:1934)
[ 38.306619][ C3] _raw_read_lock_bh (./include/linux/rwlock_api_smp.h:177 kernel/locking/spinlock.c:252)
[ 38.306790][ C3] ? ipv6_get_lladdr (net/ipv6/addrconf.c:1911 net/ipv6/addrconf.c:1934)
[ 38.306959][ C3] ipv6_get_lladdr (net/ipv6/addrconf.c:1911 net/ipv6/addrconf.c:1934)
[ 38.307129][ C3] ndisc_send_ns (net/ipv6/ndisc.c:658)
[ 38.307302][ C3] ? __pfx_ndisc_send_ns (net/ipv6/ndisc.c:653)
[ 38.307471][ C3] ? __ipv6_chk_addr_and_flags (net/ipv6/addrconf.c:2009)
[ 38.307686][ C3] ndisc_solicit (net/ipv6/ndisc.c:736)
[ 38.307857][ C3] ? __pfx_ndisc_solicit (net/ipv6/ndisc.c:736)
[ 38.308141][ C3] ? neigh_probe (net/core/neighbour.c:1074)
[ 38.308313][ C3] neigh_probe (net/core/neighbour.c:1075)
[ 38.308444][ C3] __neigh_event_send (net/core/neighbour.c:1242)
[ 38.308616][ C3] neigh_resolve_output (net/core/neighbour.c:1547)
[ 38.308786][ C3] ? __local_bh_enable_ip (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:77 kernel/softirq.c:387)
[ 38.309067][ C3] ? ___neigh_create (net/core/neighbour.c:722 (discriminator 9))
[ 38.309242][ C3] ip6_finish_output2 (./include/net/neighbour.h:542 net/ipv6/ip6_output.c:137)
[ 38.309410][ C3] ip6_finish_output (net/ipv6/ip6_output.c:211 net/ipv6/ip6_output.c:222)
[ 38.309585][ C3] ip6_output (./include/linux/netfilter.h:303 net/ipv6/ip6_output.c:243)
[ 38.309826][ C3] ? __pfx_ip6_output (net/ipv6/ip6_output.c:230)
[ 38.309997][ C3] ? ip6_dst_mtu_maybe_forward.constprop.0 (./include/linux/rcupdate.h:339 ./include/linux/rcupdate.h:814 ./include/net/ip6_route.h:336)
[ 38.310209][ C3] ip6_forward (./include/net/dst.h:450 net/ipv6/ip6_output.c:472 ./include/linux/netfilter.h:314 ./include/linux/netfilter.h:308 net/ipv6/ip6_output.c:660)
[ 38.310379][ C3] ? ip6_route_input (./include/linux/skbuff.h:1163 net/ipv6/route.c:2594)
[ 38.310662][ C3] ? __pfx_ip6_forward (net/ipv6/ip6_output.c:494)
[ 38.310840][ C3] ? ip6_rcv_core (./include/linux/skbuff.h:3202 net/ipv6/ip6_input.c:291)
[ 38.311010][ C3] ? ipv6_rcv (./include/net/dst.h:460 ./include/net/dst.h:458 net/ipv6/ip6_input.c:79 ./include/linux/netfilter.h:314 ./include/linux/netfilter.h:308 net/ipv6/ip6_input.c:310)
[ 38.311139][ C3] ipv6_rcv (./include/net/dst.h:460 ./include/net/dst.h:458 net/ipv6/ip6_input.c:79 ./include/linux/netfilter.h:314 ./include/linux/netfilter.h:308 net/ipv6/ip6_input.c:310)
[ 38.311271][ C3] ? __pfx_ipv6_rcv (net/ipv6/ip6_input.c:304)
[ 38.311556][ C3] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756)
[ 38.311725][ C3] ? netif_receive_skb_internal (./include/linux/rcupdate.h:329 (discriminator 16) ./include/linux/rcupdate.h:781 (discriminator 16) net/core/dev.c:5791 (discriminator 16))
[ 38.311939][ C3] ? __pfx_ipv6_rcv (net/ipv6/ip6_input.c:304)
[ 38.312108][ C3] __netif_receive_skb_one_core (net/core/dev.c:5597)
[ 38.312320][ C3] ? __pfx___netif_receive_skb_one_core (net/core/dev.c:5597)
[ 38.312531][ C3] ? netif_receive_skb_internal (./include/linux/rcupdate.h:329 (discriminator 16) ./include/linux/rcupdate.h:781 (discriminator 16) net/core/dev.c:5791 (discriminator 16))
[ 38.312748][ C3] ? lock_acquire (kernel/locking/lockdep.c:5727)
[ 38.312917][ C3] ? netif_receive_skb_internal (./include/linux/rcupdate.h:329 (discriminator 16) ./include/linux/rcupdate.h:781 (discriminator 16) net/core/dev.c:5791 (discriminator 16))
[ 38.313241][ C3] netif_receive_skb_internal (net/core/dev.c:5804)
[ 38.313409][ C3] ? __pfx_netif_receive_skb_internal (net/core/dev.c:5783)
[ 38.313619][ C3] ? br_handle_vlan (./arch/x86/include/asm/bitops.h:206 ./arch/x86/include/asm/bitops.h:238 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 net/bridge/br_private.h:754 net/bridge/br_vlan.c:505) bridge
[ 38.313950][ C3] netif_receive_skb (net/core/dev.c:5864)
[ 38.314119][ C3] br_handle_frame_finish (net/bridge/br_input.c:216) bridge
[ 38.314367][ C3] ? __pfx_br_handle_frame_finish (net/bridge/br_input.c:75) bridge
[ 38.314617][ C3] ? ip6_input_finish (./include/linux/rcupdate.h:339 ./include/linux/rcupdate.h:814 net/ipv6/ip6_input.c:484)
[ 38.314899][ C3] ? ip6_protocol_deliver_rcu (net/ipv6/ip6_input.c:438 (discriminator 5))
[ 38.315109][ C3] br_handle_frame (net/bridge/br_input.c:417) bridge
[ 38.315315][ C3] ? __pfx_br_handle_frame (net/bridge/br_input.c:321) bridge
[ 38.315561][ C3] __netif_receive_skb_core.constprop.0 (net/core/dev.c:5498)
[ 38.315887][ C3] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3))
[ 38.316018][ C3] ? __lock_acquire (kernel/locking/lockdep.c:5137)
[ 38.316190][ C3] ? __pfx___netif_receive_skb_core.constprop.0 (net/core/dev.c:5391)
[ 38.316403][ C3] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756)
[ 38.316688][ C3] ? process_backlog (./include/linux/rcupdate.h:329 ./include/linux/rcupdate.h:781 net/core/dev.c:6046)
[ 38.316857][ C3] __netif_receive_skb_one_core (net/core/dev.c:5603)
[ 38.317068][ C3] ? __pfx___netif_receive_skb_one_core (net/core/dev.c:5597)
[ 38.317277][ C3] ? process_backlog (./include/linux/rcupdate.h:329 ./include/linux/rcupdate.h:781 net/core/dev.c:6046)
[ 38.317444][ C3] ? lock_acquire (kernel/locking/lockdep.c:5727)
[ 38.317615][ C3] ? process_backlog (./include/linux/rcupdate.h:329 ./include/linux/rcupdate.h:781 net/core/dev.c:6046)
[ 38.317791][ C3] process_backlog (./include/linux/rcupdate.h:810 net/core/dev.c:6048)
[ 38.317961][ C3] ? find_held_lock (kernel/locking/lockdep.c:5244)
[ 38.318358][ C3] __napi_poll.constprop.0 (net/core/dev.c:6701)
[ 38.318531][ C3] net_rx_action (net/core/dev.c:6770 net/core/dev.c:6886)
[ 38.318703][ C3] ? __pfx_net_rx_action (net/core/dev.c:6850)
[ 38.318872][ C3] ? usage_skip (kernel/locking/lockdep.c:2295 kernel/locking/lockdep.c:2263)
[ 38.319154][ C3] ? mark_held_locks (kernel/locking/lockdep.c:4274)
[ 38.319325][ C3] __do_softirq (kernel/softirq.c:554)
[ 38.319500][ C3] ? __neigh_event_send (./include/linux/bottom_half.h:33 net/core/neighbour.c:1245)
[ 38.319672][ C3] do_softirq (kernel/softirq.c:455 kernel/softirq.c:442)
[ 38.319800][ C3]
[ 38.320000][ C3]
[ 38.320085][ C3] __local_bh_enable_ip (kernel/softirq.c:382)
[ 38.320254][ C3] __neigh_event_send (net/core/neighbour.c:1246)
[ 38.320424][ C3] neigh_resolve_output (net/core/neighbour.c:1547)
[ 38.320592][ C3] ? __local_bh_enable_ip (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:77 kernel/softirq.c:387)
[ 38.320871][ C3] ? ___neigh_create (net/core/neighbour.c:722 (discriminator 9))
[ 38.321047][ C3] ip6_finish_output2 (./include/net/neighbour.h:542 net/ipv6/ip6_output.c:137)
[ 38.321217][ C3] ip6_finish_output (net/ipv6/ip6_output.c:211 net/ipv6/ip6_output.c:222)
[ 38.321388][ C3] ip6_output (./include/linux/netfilter.h:303 net/ipv6/ip6_output.c:243)
[ 38.321632][ C3] ? __pfx_ip6_output (net/ipv6/ip6_output.c:230)
[ 38.321801][ C3] ? vrf_l3_out (drivers/net/vrf.c:1035) vrf
[ 38.321985][ C3] ? ip6_local_out (net/ipv6/output_core.c:154)
[ 38.322159][ C3] ip6_send_skb (net/ipv6/ip6_output.c:1956)
[ 38.322328][ C3] rawv6_push_pending_frames (net/ipv6/raw.c:512)
[ 38.322499][ C3] ? __pfx_raw6_getfrag (net/ipv6/raw.c:711)
[ 38.322674][ C3] ? ip6_append_data (net/ipv6/ip6_output.c:1835)
[ 38.322844][ C3] ? __pfx_rawv6_push_pending_frames (net/ipv6/raw.c:512)
[ 38.323057][ C3] rawv6_sendmsg (net/ipv6/raw.c:926)
[ 38.323338][ C3] ? __pfx_validate_chain (kernel/locking/lockdep.c:3825)
[ 38.323510][ C3] ? __pfx_rawv6_sendmsg (net/ipv6/raw.c:741)
[ 38.323683][ C3] ? __lock_acquire (kernel/locking/lockdep.c:5137)
[ 38.323855][ C3] ? find_held_lock (kernel/locking/lockdep.c:5244)
[ 38.324137][ C3] ? __might_fault (mm/memory.c:6216 mm/memory.c:6209)
[ 38.324313][ C3] ? lock_acquire (kernel/locking/lockdep.c:5727)
[ 38.324481][ C3] ? __might_fault (mm/memory.c:6216 mm/memory.c:6209)
[ 38.324650][ C3] ? __might_fault (mm/memory.c:6216 mm/memory.c:6209)
[ 38.324934][ C3] ? __sys_sendto (net/socket.c:730 net/socket.c:745 net/socket.c:2191)
[ 38.325104][ C3] __sys_sendto (net/socket.c:730 net/socket.c:745 net/socket.c:2191)
[ 38.325272][ C3] ? __pfx___sys_sendto (net/socket.c:2161)
[ 38.325442][ C3] ? do_user_addr_fault (./include/linux/rcupdate.h:329 ./include/linux/rcupdate.h:781 ./include/linux/mm.h:700 arch/x86/mm/fault.c:1364)
[ 38.325724][ C3] ? reacquire_held_locks (kernel/locking/lockdep.c:5279)
[ 38.325896][ C3] ? __lock_release (kernel/locking/lockdep.c:5430)
[ 38.326071][ C3] ? do_user_addr_fault (./include/linux/rcupdate.h:339 ./include/linux/rcupdate.h:814 ./include/linux/mm.h:702 arch/x86/mm/fault.c:1364)
[ 38.326240][ C3] ? __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)
[ 38.326410][ C3] ? __pfx___up_read (kernel/locking/rwsem.c:1339)
[ 38.326695][ C3] ? do_user_addr_fault (./include/linux/rcupdate.h:339 ./include/linux/rcupdate.h:814 ./include/linux/mm.h:702 arch/x86/mm/fault.c:1364)
[ 38.326863][ C3] __x64_sys_sendto (net/socket.c:2199)
[ 38.327031][ C3] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4300 kernel/locking/lockdep.c:4359)
[ 38.327242][ C3] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83)
[ 38.327412][ C3] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129)
[ 38.327658][ C3] RIP: 0033:0x7f976f11f85a
[ 38.327846][ C3] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb b8 0f 1f 00 f3 0f 1e fa 41 89 ca 64 8b 04 25 18 00 00 00 85 c0 75 15 b8 2c 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 7e c3 0f 1f 44 00 00 41 54 48 83 ec 30 44 89
All code
========
0: d8 64 89 02 fsubs 0x2(%rcx,%rcx,4)
4: 48 c7 c0 ff ff ff ff mov $0xffffffffffffffff,%rax
b: eb b8 jmp 0xffffffffffffffc5
d: 0f 1f 00 nopl (%rax)
10: f3 0f 1e fa endbr64
14: 41 89 ca mov %ecx,%r10d
17: 64 8b 04 25 18 00 00 mov %fs:0x18,%eax
1e: 00
1f: 85 c0 test %eax,%eax
21: 75 15 jne 0x38
23: b8 2c 00 00 00 mov $0x2c,%eax
28: 0f 05 syscall
2a:* 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax <-- trapping instruction
30: 77 7e ja 0xb0
32: c3 ret
33: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1)
38: 41 54 push %r12
3a: 48 83 ec 30 sub $0x30,%rsp
3e: 44 rex.R
3f: 89 .byte 0x89
Code starting with the faulting instruction
===========================================
0: 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax
6: 77 7e ja 0x86
8: c3 ret
9: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1)
e: 41 54 push %r12
10: 48 83 ec 30 sub $0x30,%rsp
14: 44 rex.R
15: 89 .byte 0x89
[ 38.328561][ C3] RSP: 002b:00007ffde4609c88 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[ 38.328822][ C3] RAX: ffffffffffffffda RBX: 0000000000000038 RCX: 00007f976f11f85a
[ 38.329195][ C3] RDX: 0000000000000040 RSI: 0000000004d37340 RDI: 0000000000000005
[ 38.329448][ C3] RBP: 00007ffde4609d10 R08: 0000000000418574 R09: 000000000000001c
[ 38.329703][ C3] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000419ac0
Finger prints:
dump_stack_lvl:mark_lock_irq:mark_lock:mark_usage