======================================
| [ 72.793462][ C3] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129)
| [ 72.793681][ C3]
| [ 72.793766][ C3]
| [ 72.793766][ C3] stack backtrace:
[ 72.794233][ C3] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 72.794760][ C3] Call Trace:
[ 72.794890][ C3]
[ 72.794977][ C3] dump_stack_lvl (lib/dump_stack.c:117)
[ 72.795153][ C3] print_irq_inversion_bug.part.0 (kernel/locking/lockdep.c:4024)
[ 72.795366][ C3] ? __pfx_print_irq_inversion_bug.part.0 (kernel/locking/lockdep.c:4024)
[ 72.795697][ C3] ? __pfx_usage_skip (kernel/locking/lockdep.c:2264)
[ 72.795867][ C3] ? __pfx_usage_match (kernel/locking/lockdep.c:2256)
[ 72.796035][ C3] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26)
[ 72.796212][ C3] mark_lock_irq (kernel/locking/lockdep.c:4244)
[ 72.796509][ C3] ? __pfx_mark_lock_irq (kernel/locking/lockdep.c:4207)
[ 72.796678][ C3] ? stack_trace_save (kernel/stacktrace.c:123)
[ 72.796852][ C3] ? save_trace (kernel/locking/lockdep.c:586)
[ 72.797029][ C3] mark_lock (kernel/locking/lockdep.c:4678)
[ 72.797158][ C3] mark_usage (kernel/locking/lockdep.c:4567)
[ 72.797398][ C3] __lock_acquire (kernel/locking/lockdep.c:5091)
[ 72.797570][ C3] lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756)
[ 72.797739][ C3] ? ipv6_get_lladdr (net/ipv6/addrconf.c:1911 net/ipv6/addrconf.c:1934)
[ 72.797912][ C3] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719)
[ 72.798194][ C3] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 52))
[ 72.798376][ C3] ? ipv6_get_lladdr (net/ipv6/addrconf.c:1911 net/ipv6/addrconf.c:1934)
[ 72.798573][ C3] ? lock_acquire (kernel/locking/lockdep.c:5727)
[ 72.798742][ C3] ? ipv6_get_lladdr (net/ipv6/addrconf.c:1911 net/ipv6/addrconf.c:1934)
[ 72.798911][ C3] _raw_read_lock_bh (./include/linux/rwlock_api_smp.h:177 kernel/locking/spinlock.c:252)
[ 72.799081][ C3] ? ipv6_get_lladdr (net/ipv6/addrconf.c:1911 net/ipv6/addrconf.c:1934)
[ 72.799248][ C3] ipv6_get_lladdr (net/ipv6/addrconf.c:1911 net/ipv6/addrconf.c:1934)
[ 72.799416][ C3] ndisc_send_ns (net/ipv6/ndisc.c:658)
[ 72.799591][ C3] ? __pfx_ndisc_send_ns (net/ipv6/ndisc.c:653)
[ 72.799983][ C3] ? __ipv6_chk_addr_and_flags (net/ipv6/addrconf.c:2009)
[ 72.800195][ C3] ndisc_solicit (net/ipv6/ndisc.c:736)
[ 72.800365][ C3] ? __pfx_ndisc_solicit (net/ipv6/ndisc.c:736)
[ 72.800534][ C3] ? neigh_probe (net/core/neighbour.c:1074)
[ 72.800815][ C3] neigh_probe (net/core/neighbour.c:1075)
[ 72.800942][ C3] __neigh_event_send (net/core/neighbour.c:1242)
[ 72.801112][ C3] neigh_resolve_output (net/core/neighbour.c:1547)
[ 72.801286][ C3] ? __local_bh_enable_ip (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:77 kernel/softirq.c:387)
[ 72.801565][ C3] ? ___neigh_create (net/core/neighbour.c:722 (discriminator 9))
[ 72.801735][ C3] ip6_finish_output2 (./include/net/neighbour.h:542 net/ipv6/ip6_output.c:137)
[ 72.801918][ C3] ip6_finish_output (net/ipv6/ip6_output.c:211 net/ipv6/ip6_output.c:222)
[ 72.802087][ C3] ip6_output (./include/linux/netfilter.h:303 net/ipv6/ip6_output.c:243)
[ 72.802215][ C3] ? __pfx_ip6_output (net/ipv6/ip6_output.c:230)
[ 72.802520][ C3] ? ip6_dst_mtu_maybe_forward.constprop.0 (./include/linux/rcupdate.h:339 ./include/linux/rcupdate.h:814 ./include/net/ip6_route.h:336)
[ 72.802734][ 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)
[ 72.802919][ C3] ? ip6_route_input (./include/linux/skbuff.h:1163 net/ipv6/route.c:2594)
[ 72.803092][ C3] ? __pfx_ip6_forward (net/ipv6/ip6_output.c:494)
[ 72.803376][ C3] ? ip6_rcv_core (./include/linux/skbuff.h:3202 net/ipv6/ip6_input.c:291)
[ 72.803546][ 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)
[ 72.803673][ 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)
[ 72.803800][ C3] ? __pfx_ipv6_rcv (net/ipv6/ip6_input.c:304)
[ 72.803968][ C3] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756)
[ 72.804137][ 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))
[ 72.804347][ C3] ? __pfx_ipv6_rcv (net/ipv6/ip6_input.c:304)
[ 72.804522][ C3] __netif_receive_skb_one_core (net/core/dev.c:5597)
[ 72.804848][ C3] ? __pfx___netif_receive_skb_one_core (net/core/dev.c:5597)
[ 72.805067][ 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))
[ 72.805280][ C3] ? lock_acquire (kernel/locking/lockdep.c:5727)
[ 72.805450][ 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))
[ 72.805777][ C3] netif_receive_skb_internal (net/core/dev.c:5804)
[ 72.805948][ C3] ? __pfx_netif_receive_skb_internal (net/core/dev.c:5783)
[ 72.806167][ 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
[ 72.806385][ C3] netif_receive_skb (net/core/dev.c:5864)
[ 72.806699][ C3] br_handle_frame_finish (net/bridge/br_input.c:216) bridge
[ 72.806948][ C3] ? __pfx_br_handle_frame_finish (net/bridge/br_input.c:75) bridge
[ 72.807193][ C3] ? ip6_input_finish (./include/linux/rcupdate.h:339 ./include/linux/rcupdate.h:814 net/ipv6/ip6_input.c:484)
[ 72.807497][ C3] ? ip6_protocol_deliver_rcu (net/ipv6/ip6_input.c:438 (discriminator 5))
[ 72.807714][ C3] br_handle_frame (net/bridge/br_input.c:417) bridge
[ 72.807953][ C3] ? __pfx_br_handle_frame (net/bridge/br_input.c:321) bridge
[ 72.808200][ C3] __netif_receive_skb_core.constprop.0 (net/core/dev.c:5498)
[ 72.808537][ C3] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3))
[ 72.808665][ C3] ? __lock_acquire (kernel/locking/lockdep.c:5137)
[ 72.808836][ C3] ? __pfx___netif_receive_skb_core.constprop.0 (net/core/dev.c:5391)
[ 72.809058][ C3] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756)
[ 72.809342][ C3] ? process_backlog (./include/linux/rcupdate.h:329 ./include/linux/rcupdate.h:781 net/core/dev.c:6046)
[ 72.809513][ C3] __netif_receive_skb_one_core (net/core/dev.c:5603)
[ 72.809729][ C3] ? __pfx___netif_receive_skb_one_core (net/core/dev.c:5597)
[ 72.809942][ C3] ? process_backlog (./include/linux/rcupdate.h:329 ./include/linux/rcupdate.h:781 net/core/dev.c:6046)
[ 72.810236][ C3] ? lock_acquire (kernel/locking/lockdep.c:5727)
[ 72.810408][ C3] ? process_backlog (./include/linux/rcupdate.h:329 ./include/linux/rcupdate.h:781 net/core/dev.c:6046)
[ 72.810605][ C3] process_backlog (./include/linux/rcupdate.h:810 net/core/dev.c:6048)
[ 72.810776][ C3] ? find_held_lock (kernel/locking/lockdep.c:5244)
[ 72.810948][ C3] __napi_poll.constprop.0 (net/core/dev.c:6701)
[ 72.811123][ C3] net_rx_action (net/core/dev.c:6770 net/core/dev.c:6886)
[ 72.811307][ C3] ? __pfx_net_rx_action (net/core/dev.c:6850)
[ 72.811478][ C3] ? usage_skip (kernel/locking/lockdep.c:2295 kernel/locking/lockdep.c:2263)
[ 72.811763][ C3] ? mark_held_locks (kernel/locking/lockdep.c:4274)
[ 72.811947][ C3] __do_softirq (kernel/softirq.c:554)
[ 72.812118][ C3] ? __neigh_event_send (./include/linux/bottom_half.h:33 net/core/neighbour.c:1245)
[ 72.812292][ C3] do_softirq (kernel/softirq.c:455 kernel/softirq.c:442)
[ 72.812420][ C3]
[ 72.812621][ C3]
[ 72.812707][ C3] __local_bh_enable_ip (kernel/softirq.c:382)
[ 72.812882][ C3] __neigh_event_send (net/core/neighbour.c:1246)
[ 72.813053][ C3] neigh_resolve_output (net/core/neighbour.c:1547)
[ 72.813224][ C3] ? __local_bh_enable_ip (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:77 kernel/softirq.c:387)
[ 72.813617][ C3] ? ___neigh_create (net/core/neighbour.c:722 (discriminator 9))
[ 72.813786][ C3] ip6_finish_output2 (./include/net/neighbour.h:542 net/ipv6/ip6_output.c:137)
[ 72.813957][ C3] ip6_finish_output (net/ipv6/ip6_output.c:211 net/ipv6/ip6_output.c:222)
[ 72.814127][ C3] ip6_output (./include/linux/netfilter.h:303 net/ipv6/ip6_output.c:243)
[ 72.814256][ C3] ? __pfx_ip6_output (net/ipv6/ip6_output.c:230)
[ 72.814558][ C3] ? vrf_l3_out (drivers/net/vrf.c:1035) vrf
[ 72.814752][ C3] ? ip6_local_out (net/ipv6/output_core.c:154)
[ 72.814930][ C3] ip6_send_skb (net/ipv6/ip6_output.c:1956)
[ 72.815100][ C3] rawv6_push_pending_frames (net/ipv6/raw.c:512)
[ 72.815394][ C3] ? __pfx_raw6_getfrag (net/ipv6/raw.c:711)
[ 72.815562][ C3] ? ip6_append_data (net/ipv6/ip6_output.c:1835)
[ 72.815731][ C3] ? __pfx_rawv6_push_pending_frames (net/ipv6/raw.c:512)
[ 72.815943][ C3] rawv6_sendmsg (net/ipv6/raw.c:926)
[ 72.816111][ C3] ? __pfx_validate_chain (kernel/locking/lockdep.c:3825)
[ 72.816290][ C3] ? __pfx_rawv6_sendmsg (net/ipv6/raw.c:741)
[ 72.816475][ C3] ? __lock_acquire (kernel/locking/lockdep.c:5137)
[ 72.816648][ C3] ? find_held_lock (kernel/locking/lockdep.c:5244)
[ 72.816928][ C3] ? __might_fault (mm/memory.c:6216 mm/memory.c:6209)
[ 72.817102][ C3] ? lock_acquire (kernel/locking/lockdep.c:5727)
[ 72.817271][ C3] ? __might_fault (mm/memory.c:6216 mm/memory.c:6209)
[ 72.817442][ C3] ? __might_fault (mm/memory.c:6216 mm/memory.c:6209)
[ 72.817725][ C3] ? __sys_sendto (net/socket.c:730 net/socket.c:745 net/socket.c:2191)
[ 72.817921][ C3] __sys_sendto (net/socket.c:730 net/socket.c:745 net/socket.c:2191)
[ 72.818103][ C3] ? __pfx___sys_sendto (net/socket.c:2161)
[ 72.818271][ 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)
[ 72.818473][ C3] ? reacquire_held_locks (kernel/locking/lockdep.c:5279)
[ 72.818759][ C3] ? __lock_release (kernel/locking/lockdep.c:5430)
[ 72.818927][ 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)
[ 72.819094][ 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)
[ 72.819262][ C3] ? __pfx___up_read (kernel/locking/rwsem.c:1339)
[ 72.819542][ 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)
[ 72.819717][ C3] __x64_sys_sendto (net/socket.c:2199)
[ 72.819886][ C3] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4300 kernel/locking/lockdep.c:4359)
[ 72.820094][ C3] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83)
[ 72.820376][ C3] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129)
[ 72.820587][ C3] RIP: 0033:0x7f9c339ee85a
[ 72.820762][ 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
[ 72.821477][ C3] RSP: 002b:00007fffeea6a918 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[ 72.821736][ C3] RAX: ffffffffffffffda RBX: 0000000000000038 RCX: 00007f9c339ee85a
[ 72.822002][ C3] RDX: 0000000000000040 RSI: 0000000023c8c340 RDI: 0000000000000005
[ 72.822261][ C3] RBP: 00007fffeea6a9a0 R08: 0000000000418574 R09: 000000000000001c
[ 72.822549][ C3] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000419ac0
Finger prints:
dump_stack_lvl:mark_lock_irq:mark_lock:mark_usage