====================================== | [ 43.223590][ C1] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129) | [ 43.223910][ C1] | [ 43.223994][ C1] | [ 43.223994][ C1] stack backtrace: [ 43.224457][ C1] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 43.224946][ C1] Call Trace: [ 43.225072][ C1] [ 43.225170][ C1] dump_stack_lvl (lib/dump_stack.c:117) [ 43.225343][ C1] print_irq_inversion_bug.part.0 (kernel/locking/lockdep.c:4024) [ 43.225664][ C1] ? __pfx_print_irq_inversion_bug.part.0 (kernel/locking/lockdep.c:4024) [ 43.225892][ C1] ? __pfx_usage_skip (kernel/locking/lockdep.c:2264) [ 43.226061][ C1] ? __pfx_usage_match (kernel/locking/lockdep.c:2256) [ 43.226228][ C1] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) [ 43.226525][ C1] mark_lock_irq (kernel/locking/lockdep.c:4244) [ 43.226693][ C1] ? __pfx_mark_lock_irq (kernel/locking/lockdep.c:4207) [ 43.226861][ C1] ? stack_trace_save (kernel/stacktrace.c:123) [ 43.227031][ C1] ? save_trace (kernel/locking/lockdep.c:586) [ 43.227337][ C1] mark_lock (kernel/locking/lockdep.c:4678) [ 43.227466][ C1] mark_usage (kernel/locking/lockdep.c:4567) [ 43.227598][ C1] __lock_acquire (kernel/locking/lockdep.c:5091) [ 43.227776][ C1] lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) [ 43.227944][ C1] ? ipv6_get_lladdr (net/ipv6/addrconf.c:1911 net/ipv6/addrconf.c:1934) [ 43.228116][ C1] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) [ 43.228288][ C1] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 52)) [ 43.228456][ C1] ? ipv6_get_lladdr (net/ipv6/addrconf.c:1911 net/ipv6/addrconf.c:1934) [ 43.228622][ C1] ? lock_acquire (kernel/locking/lockdep.c:5727) [ 43.228901][ C1] ? ipv6_get_lladdr (net/ipv6/addrconf.c:1911 net/ipv6/addrconf.c:1934) [ 43.229070][ C1] _raw_read_lock_bh (./include/linux/rwlock_api_smp.h:177 kernel/locking/spinlock.c:252) [ 43.229239][ C1] ? ipv6_get_lladdr (net/ipv6/addrconf.c:1911 net/ipv6/addrconf.c:1934) [ 43.229407][ C1] ipv6_get_lladdr (net/ipv6/addrconf.c:1911 net/ipv6/addrconf.c:1934) [ 43.229688][ C1] ndisc_send_ns (net/ipv6/ndisc.c:658) [ 43.229863][ C1] ? __pfx_ndisc_send_ns (net/ipv6/ndisc.c:653) [ 43.230031][ C1] ? __ipv6_chk_addr_and_flags (net/ipv6/addrconf.c:2009) [ 43.230240][ C1] ndisc_solicit (net/ipv6/ndisc.c:736) [ 43.230521][ C1] ? __pfx_ndisc_solicit (net/ipv6/ndisc.c:736) [ 43.230691][ C1] ? neigh_probe (net/core/neighbour.c:1074) [ 43.230860][ C1] neigh_probe (net/core/neighbour.c:1075) [ 43.230987][ C1] __neigh_event_send (net/core/neighbour.c:1242) [ 43.231154][ C1] ? do_raw_write_lock (kernel/locking/spinlock_debug.c:188 kernel/locking/spinlock_debug.c:210) [ 43.231444][ C1] ? __pfx_do_raw_write_lock (kernel/locking/spinlock_debug.c:209) [ 43.231617][ C1] neigh_resolve_output (net/core/neighbour.c:1547) [ 43.231785][ C1] ? __local_bh_enable_ip (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:77 kernel/softirq.c:387) [ 43.231952][ C1] ? ___neigh_create (net/core/neighbour.c:722 (discriminator 9)) [ 43.232123][ C1] ip6_finish_output2 (./include/net/neighbour.h:542 net/ipv6/ip6_output.c:137) [ 43.232296][ C1] ip6_finish_output (net/ipv6/ip6_output.c:211 net/ipv6/ip6_output.c:222) [ 43.232464][ C1] ? __pfx_flow_hash_from_keys (net/core/flow_dissector.c:1789) [ 43.232634][ C1] ip6_output (./include/linux/netfilter.h:303 net/ipv6/ip6_output.c:243) [ 43.232878][ C1] ? __pfx_ip6_output (net/ipv6/ip6_output.c:230) [ 43.233045][ C1] ? ip6_make_flowlabel.constprop.0 (./include/linux/skbuff.h:1482 ./include/linux/skbuff.h:1497 ./include/linux/skbuff.h:1594 ./include/net/ipv6.h:973) ip6_tunnel [ 43.233301][ C1] ? __pfx_ip6_make_flowlabel.constprop.0 (./include/net/ipv6.h:956) ip6_tunnel [ 43.233557][ C1] ? ip6_local_out (net/ipv6/output_core.c:154) [ 43.233839][ C1] ip6tunnel_xmit.constprop.0 (./include/net/ip6_tunnel.h:163) ip6_tunnel [ 43.234055][ C1] ip6_tnl_xmit (net/ipv6/ip6_tunnel.c:1279) ip6_tunnel [ 43.234270][ C1] ? __kasan_kmalloc (mm/kasan/common.c:391) [ 43.234555][ C1] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) [ 43.234725][ C1] ? sk_getsockopt (net/core/sock.c:1940 (discriminator 2)) [ 43.234894][ C1] ? __pfx_ip6_tnl_xmit (net/ipv6/ip6_tunnel.c:1085) ip6_tunnel [ 43.235115][ C1] ? pskb_expand_head (./arch/x86/include/asm/atomic.h:28 ./include/linux/atomic/atomic-arch-fallback.h:503 ./include/linux/atomic/atomic-instrumented.h:68 net/core/skbuff.c:2267) [ 43.235401][ C1] ? __pfx_pskb_expand_head (net/core/skbuff.c:2202) [ 43.235573][ C1] ? __ipv6_chk_addr_and_flags (./include/linux/rcupdate.h:339 ./include/linux/rcupdate.h:814 net/ipv6/addrconf.c:2007) [ 43.235782][ C1] ? __gre6_xmit (net/ipv6/ip6_gre.c:812) ip6_gre [ 43.235954][ C1] __gre6_xmit (net/ipv6/ip6_gre.c:812) ip6_gre [ 43.236241][ C1] ? __pfx___gre6_xmit (net/ipv6/ip6_gre.c:747) ip6_gre [ 43.236457][ C1] ip6gre_tunnel_xmit (net/ipv6/ip6_gre.c:838 net/ipv6/ip6_gre.c:919) ip6_gre [ 43.236674][ C1] ? __pfx_ip6gre_tunnel_xmit (net/ipv6/ip6_gre.c:905) ip6_gre [ 43.236886][ C1] ? find_held_lock (kernel/locking/lockdep.c:5244) [ 43.237053][ C1] ? __lock_release (kernel/locking/lockdep.c:5430) [ 43.237220][ C1] ? dev_queue_xmit_nit (./include/linux/rcupdate.h:339 ./include/linux/rcupdate.h:814 net/core/dev.c:2332) [ 43.237390][ C1] ? dev_queue_xmit_nit (./include/linux/rcupdate.h:339 ./include/linux/rcupdate.h:814 net/core/dev.c:2332) [ 43.237565][ C1] ? __pfx_qdisc_pkt_len_init (net/core/dev.c:3712) [ 43.237845][ C1] ? dev_queue_xmit_nit (./include/linux/rcupdate.h:339 ./include/linux/rcupdate.h:814 net/core/dev.c:2332) [ 43.238013][ C1] dev_hard_start_xmit (./include/linux/netdevice.h:4875 ./include/linux/netdevice.h:4889 net/core/dev.c:3563 net/core/dev.c:3579) [ 43.238182][ C1] ? validate_xmit_skb.constprop.0 (net/core/dev.c:3634) [ 43.238391][ C1] __dev_queue_xmit (net/core/dev.h:167 net/core/dev.c:4373) [ 43.238689][ C1] ? do_raw_write_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/qrwlock.h:98 kernel/locking/spinlock_debug.c:211) [ 43.238859][ C1] ? __pfx_do_raw_write_lock (kernel/locking/spinlock_debug.c:209) [ 43.239028][ C1] ? __pfx___dev_queue_xmit (net/core/dev.c:4281) [ 43.239198][ C1] ? ___neigh_create (net/core/neighbour.c:722 (discriminator 9)) [ 43.239480][ C1] ? ___neigh_create (net/core/neighbour.c:722 (discriminator 9)) [ 43.239650][ C1] ip_finish_output2 (./include/net/neighbour.h:542 net/ipv4/ip_output.c:235) [ 43.239824][ C1] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4292 kernel/locking/lockdep.c:4359) [ 43.240037][ C1] ? __pfx_ip_finish_output2 (net/ipv4/ip_output.c:199) [ 43.240316][ C1] ? __ip_finish_output (./include/linux/skbuff.h:1645 ./include/linux/skbuff.h:4961 net/ipv4/ip_output.c:307 net/ipv4/ip_output.c:295) [ 43.240485][ C1] ip_output (./include/linux/netfilter.h:303 net/ipv4/ip_output.c:433) [ 43.240616][ C1] ? __pfx_ip_output (net/ipv4/ip_output.c:427) [ 43.240783][ C1] ? pskb_expand_head (./arch/x86/include/asm/atomic.h:28 ./include/linux/atomic/atomic-arch-fallback.h:503 ./include/linux/atomic/atomic-instrumented.h:68 net/core/skbuff.c:2267) [ 43.240950][ C1] ? ip_route_input_noref (net/ipv4/route.c:2489) [ 43.241119][ C1] NF_HOOK.constprop.0 (./include/linux/netfilter.h:314) [ 43.241290][ C1] ? __pfx_NF_HOOK.constprop.0 (./include/linux/netfilter.h:308) [ 43.241460][ C1] ? ip_forward (net/ipv4/ip_forward.c:144) [ 43.241630][ C1] ip_rcv (./include/net/dst.h:460 ./include/net/dst.h:458 net/ipv4/ip_input.c:449 ./include/linux/netfilter.h:314 ./include/linux/netfilter.h:308 net/ipv4/ip_input.c:569) [ 43.241873][ C1] ? __pfx_ip_rcv (net/ipv4/ip_input.c:562) [ 43.242042][ C1] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) [ 43.242218][ C1] ? process_backlog (./include/linux/rcupdate.h:329 ./include/linux/rcupdate.h:781 net/core/dev.c:6046) [ 43.242387][ C1] ? __pfx_ip_rcv (net/ipv4/ip_input.c:562) [ 43.242554][ C1] __netif_receive_skb_one_core (net/core/dev.c:5604 (discriminator 4)) [ 43.242872][ C1] ? __pfx___netif_receive_skb_one_core (net/core/dev.c:5597) [ 43.243080][ C1] ? process_backlog (./include/linux/rcupdate.h:329 ./include/linux/rcupdate.h:781 net/core/dev.c:6046) [ 43.243248][ C1] ? lock_acquire (kernel/locking/lockdep.c:5727) [ 43.243526][ C1] ? process_backlog (./include/linux/rcupdate.h:329 ./include/linux/rcupdate.h:781 net/core/dev.c:6046) [ 43.243694][ C1] process_backlog (./include/linux/rcupdate.h:810 net/core/dev.c:6048) [ 43.243868][ C1] ? __pfx___lock_release (kernel/locking/lockdep.c:5406) [ 43.244037][ C1] __napi_poll.constprop.0 (net/core/dev.c:6701) [ 43.244209][ C1] net_rx_action (net/core/dev.c:6770 net/core/dev.c:6886) [ 43.244608][ C1] ? __pfx_net_rx_action (net/core/dev.c:6850) [ 43.244776][ C1] ? 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) [ 43.244945][ C1] __do_softirq (kernel/softirq.c:554) [ 43.245129][ C1] ? __dev_queue_xmit (./include/linux/rcupdate.h:339 ./include/linux/rcupdate.h:849 net/core/dev.c:4399) [ 43.245410][ C1] do_softirq (kernel/softirq.c:455 kernel/softirq.c:442) [ 43.245542][ C1] [ 43.245632][ C1] [ 43.245718][ C1] __local_bh_enable_ip (kernel/softirq.c:382) [ 43.245886][ C1] ? __dev_queue_xmit (./include/linux/rcupdate.h:339 ./include/linux/rcupdate.h:849 net/core/dev.c:4399) [ 43.246161][ C1] __dev_queue_xmit (net/core/dev.c:4400) [ 43.246330][ C1] ? packet_parse_headers (./include/linux/skbuff.h:3028 net/packet/af_packet.c:1944) [ 43.246497][ C1] ? packet_parse_headers (./include/linux/skbuff.h:3028 net/packet/af_packet.c:1944) [ 43.246666][ C1] ? __pfx_sock_alloc_send_pskb (net/core/sock.c:2767) [ 43.246838][ C1] ? __pfx___dev_queue_xmit (net/core/dev.c:4281) [ 43.247117][ C1] ? dev_get_by_index (./include/linux/rcupdate.h:339 ./include/linux/rcupdate.h:814 net/core/dev.c:888) [ 43.247285][ C1] packet_snd (net/packet/af_packet.c:3081) [ 43.247454][ C1] ? __pfx___lock_release (kernel/locking/lockdep.c:5406) [ 43.247620][ C1] ? __pfx_packet_snd (net/packet/af_packet.c:2944) [ 43.247898][ C1] ? __might_fault (mm/memory.c:6216 mm/memory.c:6209) [ 43.248065][ C1] ? trace_raw_output_mmap_lock_acquire_returned (./include/trace/events/mmap_lock.h:52 (discriminator 2)) [ 43.248314][ C1] ? __might_fault (mm/memory.c:6216 mm/memory.c:6209) [ 43.248486][ C1] __sys_sendto (net/socket.c:730 net/socket.c:745 net/socket.c:2191) [ 43.248770][ C1] ? __pfx___sys_sendto (net/socket.c:2161) [ 43.248941][ C1] ? sock_ioctl (net/socket.c:1344) [ 43.249109][ C1] ? __might_fault (mm/memory.c:6216 mm/memory.c:6209) [ 43.249277][ C1] ? trace_rseq_update (./include/trace/events/rseq.h:11 (discriminator 52)) [ 43.249558][ C1] ? __rseq_handle_notify_resume (kernel/rseq.c:316) [ 43.249771][ C1] ? __pfx___rseq_handle_notify_resume (kernel/rseq.c:316) [ 43.249980][ C1] __x64_sys_sendto (net/socket.c:2199) [ 43.250148][ C1] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4300 kernel/locking/lockdep.c:4359) [ 43.250472][ C1] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 43.250645][ C1] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129) [ 43.250854][ C1] RIP: 0033:0x7f352058a85a [ 43.251030][ C1] 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 [ 43.251624][ C1] RSP: 002b:00007ffe40862028 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 43.251996][ C1] RAX: ffffffffffffffda RBX: 00000000283c49d0 RCX: 00007f352058a85a [ 43.252253][ C1] RDX: 0000000000000062 RSI: 00000000283c45c2 RDI: 0000000000000005 [ 43.252505][ C1] RBP: 00000000283c45c2 R08: 00007ffe40862030 R09: 0000000000000014 [ 43.252877][ C1] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 Finger prints: dump_stack_lvl:mark_lock_irq:mark_lock:mark_usage