======================================
| [ 80.936284][ C0] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129)
| [ 80.936486][ C0]
| [ 80.936567][ C0]
| [ 80.936567][ C0] stack backtrace:
[ 80.937222][ C0] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 80.937584][ C0] Call Trace:
[ 80.937713][ C0]
[ 80.937797][ C0] dump_stack_lvl (lib/dump_stack.c:117)
[ 80.937963][ C0] print_irq_inversion_bug.part.0 (kernel/locking/lockdep.c:4024)
[ 80.938164][ C0] ? __pfx_print_irq_inversion_bug.part.0 (kernel/locking/lockdep.c:4024)
[ 80.938366][ C0] ? __pfx_usage_skip (kernel/locking/lockdep.c:2264)
[ 80.938635][ C0] ? __pfx_usage_match (kernel/locking/lockdep.c:2256)
[ 80.938798][ C0] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26)
[ 80.938963][ C0] mark_lock_irq (kernel/locking/lockdep.c:4244)
[ 80.939126][ C0] ? __pfx_mark_lock_irq (kernel/locking/lockdep.c:4207)
[ 80.939396][ C0] ? stack_trace_save (kernel/stacktrace.c:123)
[ 80.939561][ C0] ? save_trace (kernel/locking/lockdep.c:586)
[ 80.939725][ C0] mark_lock (kernel/locking/lockdep.c:4678)
[ 80.939848][ C0] mark_usage (kernel/locking/lockdep.c:4567)
[ 80.939973][ C0] __lock_acquire (kernel/locking/lockdep.c:5091)
[ 80.940244][ C0] lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756)
[ 80.940406][ C0] ? ipv6_get_lladdr (net/ipv6/addrconf.c:1911 net/ipv6/addrconf.c:1934)
[ 80.940573][ C0] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719)
[ 80.940735][ C0] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 52))
[ 80.941004][ C0] ? ipv6_get_lladdr (net/ipv6/addrconf.c:1911 net/ipv6/addrconf.c:1934)
[ 80.941167][ C0] ? lock_acquire (kernel/locking/lockdep.c:5727)
[ 80.941328][ C0] ? ipv6_get_lladdr (net/ipv6/addrconf.c:1911 net/ipv6/addrconf.c:1934)
[ 80.941489][ C0] _raw_read_lock_bh (./include/linux/rwlock_api_smp.h:177 kernel/locking/spinlock.c:252)
[ 80.941762][ C0] ? ipv6_get_lladdr (net/ipv6/addrconf.c:1911 net/ipv6/addrconf.c:1934)
[ 80.941924][ C0] ipv6_get_lladdr (net/ipv6/addrconf.c:1911 net/ipv6/addrconf.c:1934)
[ 80.942086][ C0] ndisc_send_ns (net/ipv6/ndisc.c:658)
[ 80.942254][ C0] ? __pfx_ndisc_send_ns (net/ipv6/ndisc.c:653)
[ 80.942416][ C0] ? __ipv6_chk_addr_and_flags (net/ipv6/addrconf.c:2009)
[ 80.942726][ C0] ndisc_solicit (net/ipv6/ndisc.c:736)
[ 80.942888][ C0] ? __pfx_ndisc_solicit (net/ipv6/ndisc.c:736)
[ 80.943050][ C0] ? neigh_probe (net/core/neighbour.c:1074)
[ 80.943213][ C0] neigh_probe (net/core/neighbour.c:1075)
[ 80.943443][ C0] __neigh_event_send (net/core/neighbour.c:1242)
[ 80.943608][ C0] neigh_resolve_output (net/core/neighbour.c:1547)
[ 80.943772][ C0] ? __local_bh_enable_ip (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:77 kernel/softirq.c:387)
[ 80.943934][ C0] ? ___neigh_create (net/core/neighbour.c:722 (discriminator 9))
[ 80.944205][ C0] ip6_finish_output2 (./include/net/neighbour.h:542 net/ipv6/ip6_output.c:137)
[ 80.944367][ C0] ip6_finish_output (net/ipv6/ip6_output.c:211 net/ipv6/ip6_output.c:222)
[ 80.944529][ C0] ip6_output (./include/linux/netfilter.h:303 net/ipv6/ip6_output.c:243)
[ 80.944654][ C0] ? __pfx_ip6_output (net/ipv6/ip6_output.c:230)
[ 80.944815][ C0] ? ip6_dst_mtu_maybe_forward.constprop.0 (./include/linux/rcupdate.h:339 ./include/linux/rcupdate.h:814 ./include/net/ip6_route.h:336)
[ 80.945125][ C0] 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)
[ 80.945287][ C0] ? ip6_route_input (./include/linux/skbuff.h:1163 net/ipv6/route.c:2594)
[ 80.945451][ C0] ? __pfx_ip6_forward (net/ipv6/ip6_output.c:494)
[ 80.945618][ C0] ? ip6_rcv_core (./include/linux/skbuff.h:3202 net/ipv6/ip6_input.c:291)
[ 80.945889][ C0] ? 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)
[ 80.946011][ C0] 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)
[ 80.946133][ C0] ? __pfx_ipv6_rcv (net/ipv6/ip6_input.c:304)
[ 80.946295][ C0] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756)
[ 80.946563][ C0] ? 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))
[ 80.946765][ C0] ? __pfx_ipv6_rcv (net/ipv6/ip6_input.c:304)
[ 80.946929][ C0] __netif_receive_skb_one_core (net/core/dev.c:5597)
[ 80.947132][ C0] ? __pfx___netif_receive_skb_one_core (net/core/dev.c:5597)
[ 80.947442][ C0] ? 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))
[ 80.947642][ C0] ? lock_acquire (kernel/locking/lockdep.c:5727)
[ 80.947803][ C0] ? 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))
[ 80.948005][ C0] netif_receive_skb_internal (net/core/dev.c:5804)
[ 80.948280][ C0] ? __pfx_netif_receive_skb_internal (net/core/dev.c:5783)
[ 80.948486][ C0] ? fdb_find_rcu (./include/linux/rhashtable.h:648 (discriminator 3) net/bridge/br_fdb.c:223 (discriminator 3))
[ 80.948651][ C0] netif_receive_skb (net/core/dev.c:5864)
[ 80.948813][ C0] br_handle_frame_finish (net/bridge/br_input.c:216)
[ 80.948975][ C0] ? __pfx_br_handle_frame_finish (net/bridge/br_input.c:75)
[ 80.949176][ C0] ? ip6_input_finish (./include/linux/rcupdate.h:339 ./include/linux/rcupdate.h:814 net/ipv6/ip6_input.c:484)
[ 80.949340][ C0] ? ip6_protocol_deliver_rcu (net/ipv6/ip6_input.c:438 (discriminator 5))
[ 80.949756][ C0] br_handle_frame (net/bridge/br_input.c:417)
[ 80.949919][ C0] ? __pfx_br_handle_frame (net/bridge/br_input.c:321)
[ 80.950084][ C0] __netif_receive_skb_core.constprop.0 (net/core/dev.c:5498)
[ 80.950285][ C0] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3))
[ 80.950409][ C0] ? __lock_acquire (kernel/locking/lockdep.c:5137)
[ 80.950684][ C0] ? __pfx___netif_receive_skb_core.constprop.0 (net/core/dev.c:5391)
[ 80.950887][ C0] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756)
[ 80.951048][ C0] ? process_backlog (./include/linux/rcupdate.h:329 ./include/linux/rcupdate.h:781 net/core/dev.c:6046)
[ 80.951210][ C0] __netif_receive_skb_one_core (net/core/dev.c:5603)
[ 80.951520][ C0] ? __pfx___netif_receive_skb_one_core (net/core/dev.c:5597)
[ 80.951728][ C0] ? process_backlog (./include/linux/rcupdate.h:329 ./include/linux/rcupdate.h:781 net/core/dev.c:6046)
[ 80.951906][ C0] ? lock_acquire (kernel/locking/lockdep.c:5727)
[ 80.952175][ C0] ? process_backlog (./include/linux/rcupdate.h:329 ./include/linux/rcupdate.h:781 net/core/dev.c:6046)
[ 80.952339][ C0] process_backlog (./include/linux/rcupdate.h:810 net/core/dev.c:6048)
[ 80.952501][ C0] ? find_held_lock (kernel/locking/lockdep.c:5244)
[ 80.952663][ C0] __napi_poll.constprop.0 (net/core/dev.c:6701)
[ 80.952834][ C0] net_rx_action (net/core/dev.c:6770 net/core/dev.c:6886)
[ 80.953105][ C0] ? __pfx_net_rx_action (net/core/dev.c:6850)
[ 80.953269][ C0] ? usage_skip (kernel/locking/lockdep.c:2295 kernel/locking/lockdep.c:2263)
[ 80.953431][ C0] ? mark_held_locks (kernel/locking/lockdep.c:4274)
[ 80.953595][ C0] __do_softirq (kernel/softirq.c:554)
[ 80.953865][ C0] ? __neigh_event_send (./include/linux/bottom_half.h:33 net/core/neighbour.c:1245)
[ 80.954027][ C0] do_softirq (kernel/softirq.c:455 kernel/softirq.c:442)
[ 80.954150][ C0]
[ 80.954233][ C0]
[ 80.954315][ C0] __local_bh_enable_ip (kernel/softirq.c:382)
[ 80.954584][ C0] __neigh_event_send (net/core/neighbour.c:1246)
[ 80.954750][ C0] neigh_resolve_output (net/core/neighbour.c:1547)
[ 80.954911][ C0] ? __local_bh_enable_ip (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:77 kernel/softirq.c:387)
[ 80.955073][ C0] ? ___neigh_create (net/core/neighbour.c:722 (discriminator 9))
[ 80.955238][ C0] ip6_finish_output2 (./include/net/neighbour.h:542 net/ipv6/ip6_output.c:137)
[ 80.955507][ C0] ip6_finish_output (net/ipv6/ip6_output.c:211 net/ipv6/ip6_output.c:222)
[ 80.955669][ C0] ip6_output (./include/linux/netfilter.h:303 net/ipv6/ip6_output.c:243)
[ 80.955790][ C0] ? __pfx___ip6_make_skb (net/ipv6/ip6_output.c:1873)
[ 80.955952][ C0] ? __pfx_ip6_output (net/ipv6/ip6_output.c:230)
[ 80.956232][ C0] ? ip6_local_out (net/ipv6/output_core.c:154)
[ 80.956403][ C0] ip6_send_skb (net/ipv6/ip6_output.c:1956)
[ 80.956566][ C0] rawv6_push_pending_frames (net/ipv6/raw.c:512)
[ 80.956732][ C0] ? __pfx_raw6_getfrag (net/ipv6/raw.c:711)
[ 80.957000][ C0] ? ip6_append_data (net/ipv6/ip6_output.c:1835)
[ 80.957161][ C0] ? __pfx_rawv6_push_pending_frames (net/ipv6/raw.c:512)
[ 80.957363][ C0] rawv6_sendmsg (net/ipv6/raw.c:926)
[ 80.957524][ C0] ? __pfx_validate_chain (kernel/locking/lockdep.c:3825)
[ 80.957798][ C0] ? __pfx_rawv6_sendmsg (net/ipv6/raw.c:741)
[ 80.957961][ C0] ? __lock_acquire (kernel/locking/lockdep.c:5137)
[ 80.958124][ 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)
[ 80.958286][ C0] ? find_held_lock (kernel/locking/lockdep.c:5244)
[ 80.958448][ C0] ? __might_fault (mm/memory.c:6216 mm/memory.c:6209)
[ 80.958717][ C0] ? lock_acquire (kernel/locking/lockdep.c:5727)
[ 80.958883][ C0] ? __might_fault (mm/memory.c:6216 mm/memory.c:6209)
[ 80.959044][ C0] ? __might_fault (mm/memory.c:6216 mm/memory.c:6209)
[ 80.959206][ C0] ? __sys_sendto (net/socket.c:730 net/socket.c:745 net/socket.c:2191)
[ 80.959475][ C0] __sys_sendto (net/socket.c:730 net/socket.c:745 net/socket.c:2191)
[ 80.959639][ C0] ? __pfx___sys_sendto (net/socket.c:2161)
[ 80.959801][ C0] ? find_held_lock (kernel/locking/lockdep.c:5244)
[ 80.959967][ C0] ? __might_fault (mm/memory.c:6216 mm/memory.c:6209)
[ 80.960237][ C0] ? lock_acquire (kernel/locking/lockdep.c:5727)
[ 80.960399][ C0] ? __might_fault (mm/memory.c:6216 mm/memory.c:6209)
[ 80.960569][ C0] ? trace_rseq_update (./include/trace/events/rseq.h:11 (discriminator 52))
[ 80.960732][ C0] ? __rseq_handle_notify_resume (kernel/rseq.c:316)
[ 80.961040][ C0] ? __pfx___rseq_handle_notify_resume (kernel/rseq.c:316)
[ 80.961248][ C0] __x64_sys_sendto (net/socket.c:2199)
[ 80.961411][ C0] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4300 kernel/locking/lockdep.c:4359)
[ 80.961613][ C0] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83)
[ 80.961892][ C0] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129)
[ 80.962093][ C0] RIP: 0033:0x7f4635bc785a
[ 80.962259][ C0] 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
[ 80.963058][ C0] RSP: 002b:00007ffc3ce991b8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[ 80.963308][ C0] RAX: ffffffffffffffda RBX: 0000000000000038 RCX: 00007f4635bc785a
[ 80.963662][ C0] RDX: 0000000000000040 RSI: 000000000faae340 RDI: 0000000000000005
[ 80.963904][ C0] RBP: 00007ffc3ce99240 R08: 0000000000418574 R09: 000000000000001c
[ 80.964150][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000419ac0
Finger prints:
dump_stack_lvl:mark_lock_irq:mark_lock:mark_usage