====================================== | [ 72.622586][ C1] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129) | [ 72.622796][ C1] | [ 72.622881][ C1] | [ 72.622881][ C1] stack backtrace: [ 72.623449][ C1] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 72.623821][ C1] Call Trace: [ 72.624059][ C1] [ 72.624153][ C1] dump_stack_lvl (lib/dump_stack.c:117) [ 72.624325][ C1] print_irq_inversion_bug.part.0 (kernel/locking/lockdep.c:4024) [ 72.624536][ C1] ? __pfx_print_irq_inversion_bug.part.0 (kernel/locking/lockdep.c:4024) [ 72.624858][ C1] ? __pfx_usage_skip (kernel/locking/lockdep.c:2264) [ 72.625025][ C1] ? __pfx_usage_match (kernel/locking/lockdep.c:2256) [ 72.625192][ C1] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) [ 72.625361][ C1] mark_lock_irq (kernel/locking/lockdep.c:4244) [ 72.625663][ C1] ? __pfx_mark_lock_irq (kernel/locking/lockdep.c:4207) [ 72.625834][ C1] ? stack_trace_save (kernel/stacktrace.c:123) [ 72.626005][ C1] ? save_trace (kernel/locking/lockdep.c:586) [ 72.626175][ C1] mark_lock (kernel/locking/lockdep.c:4678) [ 72.626302][ C1] mark_usage (kernel/locking/lockdep.c:4567) [ 72.626430][ C1] __lock_acquire (kernel/locking/lockdep.c:5091) [ 72.626602][ C1] lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) [ 72.626771][ C1] ? ipv6_get_lladdr (net/ipv6/addrconf.c:1911 net/ipv6/addrconf.c:1934) [ 72.626940][ C1] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) [ 72.627219][ C1] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 52)) [ 72.627390][ C1] ? ipv6_get_lladdr (net/ipv6/addrconf.c:1911 net/ipv6/addrconf.c:1934) [ 72.627557][ C1] ? lock_acquire (kernel/locking/lockdep.c:5727) [ 72.627725][ C1] ? ipv6_get_lladdr (net/ipv6/addrconf.c:1911 net/ipv6/addrconf.c:1934) [ 72.627893][ C1] _raw_read_lock_bh (./include/linux/rwlock_api_smp.h:177 kernel/locking/spinlock.c:252) [ 72.628173][ C1] ? ipv6_get_lladdr (net/ipv6/addrconf.c:1911 net/ipv6/addrconf.c:1934) [ 72.628340][ C1] ipv6_get_lladdr (net/ipv6/addrconf.c:1911 net/ipv6/addrconf.c:1934) [ 72.628508][ C1] ndisc_send_ns (net/ipv6/ndisc.c:658) [ 72.628675][ C1] ? __pfx_ndisc_send_ns (net/ipv6/ndisc.c:653) [ 72.628956][ C1] ? __ipv6_chk_addr_and_flags (net/ipv6/addrconf.c:2009) [ 72.629176][ C1] ndisc_solicit (net/ipv6/ndisc.c:736) [ 72.629344][ C1] ? __pfx_ndisc_solicit (net/ipv6/ndisc.c:736) [ 72.629512][ C1] ? neigh_probe (net/core/neighbour.c:1074) [ 72.629794][ C1] neigh_probe (net/core/neighbour.c:1075) [ 72.629924][ C1] __neigh_event_send (net/core/neighbour.c:1242) [ 72.630094][ C1] neigh_resolve_output (net/core/neighbour.c:1547) [ 72.630261][ C1] ? __local_bh_enable_ip (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:77 kernel/softirq.c:387) [ 72.630554][ C1] ? ___neigh_create (net/core/neighbour.c:722 (discriminator 9)) [ 72.630726][ C1] ip6_finish_output2 (./include/net/neighbour.h:542 net/ipv6/ip6_output.c:137) [ 72.630895][ C1] ip6_finish_output (net/ipv6/ip6_output.c:211 net/ipv6/ip6_output.c:222) [ 72.631063][ C1] ip6_output (./include/linux/netfilter.h:303 net/ipv6/ip6_output.c:243) [ 72.631190][ C1] ? __pfx_ip6_output (net/ipv6/ip6_output.c:230) [ 72.631358][ C1] ? ip6_dst_mtu_maybe_forward.constprop.0 (./include/linux/rcupdate.h:339 ./include/linux/rcupdate.h:814 ./include/net/ip6_route.h:336) [ 72.631568][ C1] 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) [ 72.631736][ C1] ? ip6_route_input (./include/linux/skbuff.h:1163 net/ipv6/route.c:2594) [ 72.631906][ C1] ? __pfx_ip6_forward (net/ipv6/ip6_output.c:494) [ 72.632077][ C1] ? ip6_rcv_core (./include/linux/skbuff.h:3202 net/ipv6/ip6_input.c:291) [ 72.632255][ C1] ? 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) [ 72.632381][ C1] 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) [ 72.632507][ C1] ? __pfx_ipv6_rcv (net/ipv6/ip6_input.c:304) [ 72.632677][ C1] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) [ 72.632959][ C1] ? 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)) [ 72.633169][ C1] ? __pfx_ipv6_rcv (net/ipv6/ip6_input.c:304) [ 72.633336][ C1] __netif_receive_skb_one_core (net/core/dev.c:5597) [ 72.633663][ C1] ? __pfx___netif_receive_skb_one_core (net/core/dev.c:5597) [ 72.633882][ C1] ? 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)) [ 72.634092][ C1] ? lock_acquire (kernel/locking/lockdep.c:5727) [ 72.634261][ C1] ? 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)) [ 72.634470][ C1] netif_receive_skb_internal (net/core/dev.c:5804) [ 72.634639][ C1] ? __pfx_netif_receive_skb_internal (net/core/dev.c:5783) [ 72.634849][ C1] ? 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 [ 72.635061][ C1] netif_receive_skb (net/core/dev.c:5864) [ 72.635520][ C1] br_handle_frame_finish (net/bridge/br_input.c:216) bridge [ 72.635776][ C1] ? __pfx_br_handle_frame_finish (net/bridge/br_input.c:75) bridge [ 72.636021][ C1] ? ip6_input_finish (./include/linux/rcupdate.h:339 ./include/linux/rcupdate.h:814 net/ipv6/ip6_input.c:484) [ 72.636190][ C1] ? ip6_protocol_deliver_rcu (net/ipv6/ip6_input.c:438 (discriminator 5)) [ 72.636515][ C1] br_handle_frame (net/bridge/br_input.c:417) bridge [ 72.636719][ C1] ? __pfx_br_handle_frame (net/bridge/br_input.c:321) bridge [ 72.636962][ C1] __netif_receive_skb_core.constprop.0 (net/core/dev.c:5498) [ 72.637289][ C1] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 72.637418][ C1] ? __lock_acquire (kernel/locking/lockdep.c:5137) [ 72.637589][ C1] ? __pfx___netif_receive_skb_core.constprop.0 (net/core/dev.c:5391) [ 72.637800][ C1] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) [ 72.638089][ C1] ? process_backlog (./include/linux/rcupdate.h:329 ./include/linux/rcupdate.h:781 net/core/dev.c:6046) [ 72.638260][ C1] __netif_receive_skb_one_core (net/core/dev.c:5603) [ 72.638471][ C1] ? __pfx___netif_receive_skb_one_core (net/core/dev.c:5597) [ 72.638681][ C1] ? process_backlog (./include/linux/rcupdate.h:329 ./include/linux/rcupdate.h:781 net/core/dev.c:6046) [ 72.638964][ C1] ? lock_acquire (kernel/locking/lockdep.c:5727) [ 72.639134][ C1] ? process_backlog (./include/linux/rcupdate.h:329 ./include/linux/rcupdate.h:781 net/core/dev.c:6046) [ 72.639305][ C1] process_backlog (./include/linux/rcupdate.h:810 net/core/dev.c:6048) [ 72.639474][ C1] ? find_held_lock (kernel/locking/lockdep.c:5244) [ 72.639769][ C1] __napi_poll.constprop.0 (net/core/dev.c:6701) [ 72.639942][ C1] net_rx_action (net/core/dev.c:6770 net/core/dev.c:6886) [ 72.640116][ C1] ? __pfx_net_rx_action (net/core/dev.c:6850) [ 72.640287][ C1] ? usage_skip (kernel/locking/lockdep.c:2295 kernel/locking/lockdep.c:2263) [ 72.640463][ C1] ? mark_held_locks (kernel/locking/lockdep.c:4274) [ 72.640749][ C1] __do_softirq (kernel/softirq.c:554) [ 72.640919][ C1] ? __neigh_event_send (./include/linux/bottom_half.h:33 net/core/neighbour.c:1245) [ 72.641088][ C1] do_softirq (kernel/softirq.c:455 kernel/softirq.c:442) [ 72.641217][ C1] [ 72.641305][ C1] [ 72.641390][ C1] __local_bh_enable_ip (kernel/softirq.c:382) [ 72.641561][ C1] __neigh_event_send (net/core/neighbour.c:1246) [ 72.641732][ C1] neigh_resolve_output (net/core/neighbour.c:1547) [ 72.641904][ C1] ? __local_bh_enable_ip (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:77 kernel/softirq.c:387) [ 72.642185][ C1] ? ___neigh_create (net/core/neighbour.c:722 (discriminator 9)) [ 72.642355][ C1] ip6_finish_output2 (./include/net/neighbour.h:542 net/ipv6/ip6_output.c:137) [ 72.642526][ C1] ip6_finish_output (net/ipv6/ip6_output.c:211 net/ipv6/ip6_output.c:222) [ 72.642699][ C1] ip6_output (./include/linux/netfilter.h:303 net/ipv6/ip6_output.c:243) [ 72.642827][ C1] ? __pfx_ip6_output (net/ipv6/ip6_output.c:230) [ 72.643115][ C1] ? vrf_l3_out (drivers/net/vrf.c:1035) vrf [ 72.643298][ C1] ? ip6_local_out (net/ipv6/output_core.c:154) [ 72.643469][ C1] ip6_send_skb (net/ipv6/ip6_output.c:1956) [ 72.643641][ C1] rawv6_push_pending_frames (net/ipv6/raw.c:512) [ 72.643922][ C1] ? __pfx_raw6_getfrag (net/ipv6/raw.c:711) [ 72.644092][ C1] ? ip6_append_data (net/ipv6/ip6_output.c:1835) [ 72.644260][ C1] ? __pfx_rawv6_push_pending_frames (net/ipv6/raw.c:512) [ 72.644473][ C1] rawv6_sendmsg (net/ipv6/raw.c:926) [ 72.644753][ C1] ? __pfx_validate_chain (kernel/locking/lockdep.c:3825) [ 72.644925][ C1] ? __pfx_rawv6_sendmsg (net/ipv6/raw.c:741) [ 72.645094][ C1] ? __lock_acquire (kernel/locking/lockdep.c:5137) [ 72.645271][ 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) [ 72.645586][ C1] ? find_held_lock (kernel/locking/lockdep.c:5244) [ 72.645758][ C1] ? __might_fault (mm/memory.c:6216 mm/memory.c:6209) [ 72.645931][ C1] ? lock_acquire (kernel/locking/lockdep.c:5727) [ 72.646101][ C1] ? __might_fault (mm/memory.c:6216 mm/memory.c:6209) [ 72.646269][ C1] ? __might_fault (mm/memory.c:6216 mm/memory.c:6209) [ 72.646437][ C1] ? __sys_sendto (net/socket.c:730 net/socket.c:745 net/socket.c:2191) [ 72.646607][ C1] __sys_sendto (net/socket.c:730 net/socket.c:745 net/socket.c:2191) [ 72.646782][ C1] ? __pfx___sys_sendto (net/socket.c:2161) [ 72.646952][ C1] ? find_held_lock (kernel/locking/lockdep.c:5244) [ 72.647244][ C1] ? __might_fault (mm/memory.c:6216 mm/memory.c:6209) [ 72.647412][ C1] ? lock_acquire (kernel/locking/lockdep.c:5727) [ 72.647580][ C1] ? __might_fault (mm/memory.c:6216 mm/memory.c:6209) [ 72.647750][ C1] ? trace_rseq_update (./include/trace/events/rseq.h:11 (discriminator 52)) [ 72.648032][ C1] ? __rseq_handle_notify_resume (kernel/rseq.c:316) [ 72.648244][ C1] ? __pfx___rseq_handle_notify_resume (kernel/rseq.c:316) [ 72.648454][ C1] __x64_sys_sendto (net/socket.c:2199) [ 72.648622][ C1] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4300 kernel/locking/lockdep.c:4359) [ 72.649065][ C1] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 72.649234][ C1] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129) [ 72.649446][ C1] RIP: 0033:0x7fa28bd3c85a [ 72.649629][ 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 [ 72.650340][ C1] RSP: 002b:00007ffdee61ae88 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 72.650720][ C1] RAX: ffffffffffffffda RBX: 0000000000000038 RCX: 00007fa28bd3c85a [ 72.650974][ C1] RDX: 0000000000000040 RSI: 00000000235de340 RDI: 0000000000000005 [ 72.651227][ C1] RBP: 00007ffdee61af10 R08: 0000000000418574 R09: 000000000000001c [ 72.651479][ C1] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000419ac0 Finger prints: dump_stack_lvl:mark_lock_irq:mark_lock:mark_usage