uvm_fault(0xffffffff82838608, 0x10, 0, 1) -> e kernel: page fault trap, code=0 Stopped at nd6_dad_duplicated+0x28: movq 0x10(%r14),%r13 TID PID UID PRFLAGS PFLAGS CPU COMMAND *107513 62286 0 0x14000 0x200 0K softnet nd6_dad_duplicated(0) at nd6_dad_duplicated+0x28 sys/netinet6/nd6_nbr.c:1265 nd6_ns_input(fffffd8070b76300,28,18) at nd6_ns_input+0xdd4 nd6_dad_ns_input sys/netinet6/nd6_nbr.c:1342 [inline] nd6_ns_input(fffffd8070b76300,28,18) at nd6_ns_input+0xdd4 sys/netinet6/nd6_nbr.c:301 icmp6_input(ffff8000211675a8,ffff8000211675b4,3a,18) at icmp6_input+0xabe sys/netinet6/icmp6.c:686 ip_deliver(ffff8000211675a8,ffff8000211675b4,3a,18) at ip_deliver+0x322 sys/netinet/ip_input.c:658 ip6_input_if(ffff8000211675a8,ffff8000211675b4,29,0,ffff8000006ae000) at ip6_input_if+0x978 ipv6_input(ffff8000006ae000,fffffd806694fe00) at ipv6_input+0x48 sys/netinet6/ip6_input.c:171 if_input_local(ffff8000006ae000,fffffd806694fe00,18) at if_input_local+0x136 sys/net/if.c:778 loinput(ffff8000006ae000,fffffd806694fe00) at loinput+0x4d sys/net/if_loop.c:238 if_input_process(ffff8000006ae000,ffff8000211676e8) at if_input_process+0xd2 sys/net/if.c:843 ifiq_process(ffff8000006ae450) at ifiq_process+0x80 sys/net/ifq.c:773 taskq_thread(ffff80000002c000) at taskq_thread+0xe6 sys/kern/kern_task.c:449 end trace frame: 0x0, count: 4 https://www.openbsd.org/ddb.html describes the minimum info required in bug reports. Insufficient info makes it difficult to find and fix bugs. ddb{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic *cpu0: uvm_fault(0xffffffff82838608, 0x10, 0, 1) -> e ddb{0}> trace nd6_dad_duplicated(0) at nd6_dad_duplicated+0x28 sys/netinet6/nd6_nbr.c:1265 nd6_ns_input(fffffd8070b76300,28,18) at nd6_ns_input+0xdd4 nd6_dad_ns_input sys/netinet6/nd6_nbr.c:1342 [inline] nd6_ns_input(fffffd8070b76300,28,18) at nd6_ns_input+0xdd4 sys/netinet6/nd6_nbr.c:301 icmp6_input(ffff8000211675a8,ffff8000211675b4,3a,18) at icmp6_input+0xabe sys/netinet6/icmp6.c:686 ip_deliver(ffff8000211675a8,ffff8000211675b4,3a,18) at ip_deliver+0x322 sys/netinet/ip_input.c:658 ip6_input_if(ffff8000211675a8,ffff8000211675b4,29,0,ffff8000006ae000) at ip6_input_if+0x978 ipv6_input(ffff8000006ae000,fffffd806694fe00) at ipv6_input+0x48 sys/netinet6/ip6_input.c:171 if_input_local(ffff8000006ae000,fffffd806694fe00,18) at if_input_local+0x136 sys/net/if.c:778 loinput(ffff8000006ae000,fffffd806694fe00) at loinput+0x4d sys/net/if_loop.c:238 if_input_process(ffff8000006ae000,ffff8000211676e8) at if_input_process+0xd2 sys/net/if.c:843 ifiq_process(ffff8000006ae450) at ifiq_process+0x80 sys/net/ifq.c:773 taskq_thread(ffff80000002c000) at taskq_thread+0xe6 sys/kern/kern_task.c:449 end trace frame: 0x0, count: -11 ddb{0}> show registers rdi 0 rsi 0 rbp 0xffff800021167140 rbx 0 rdx 0 rcx 0x7 rax 0xffff800021148000 r8 0xffffffff81aa0c0c nd6_ns_input+0x3bc r9 0x1 r10 0x950ee829acefd1a0 r11 0x13c9a68dfafc34ec r12 0 r13 0x4003 __ALIGN_SIZE+0x3003 r14 0 r15 0xffff800000c34700 rip 0xffffffff81aa3438 nd6_dad_duplicated+0x28 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff8000211670c0 ss 0x10 nd6_dad_duplicated+0x28: movq 0x10(%r14),%r13 ddb{0}> show proc PROC (softnet) pid=107513 stat=onproc flags process=14000 proc=200 pri=32, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff800021148540,0xffff8000211482b0 process=0xffff8000ffffd0a0 user=0xffff800021162000, vmspace=0xffffffff82838608 estcpu=0, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 44811 241052 21082 0 2 0 syz-executor.0 44811 289637 21082 0 2 0x4000000 syz-executor.0 74630 445789 31657 0 2 0x2 syz-executor.1 76643 195417 0 0 3 0x14280 nfsidl nfsio 83004 329218 0 0 3 0x14280 nfsidl nfsio 51889 240368 0 0 3 0x14280 nfsidl nfsio 10995 294983 0 0 3 0x14280 nfsidl nfsio 1155 8591 0 0 3 0x14280 nfsidl nfsio 65154 92922 0 0 3 0x14280 nfsidl nfsio 3053 26302 0 0 3 0x14280 nfsidl nfsio 25911 83581 0 0 3 0x14280 nfsidl nfsio 68970 467203 0 0 3 0x14280 nfsidl nfsio 61508 466867 0 0 3 0x14280 nfsidl nfsio 22497 138747 0 0 3 0x14280 nfsidl nfsio 84247 90806 0 0 3 0x14280 nfsidl nfsio 63882 309214 0 0 3 0x14280 nfsidl nfsio 21926 62174 0 0 3 0x14280 nfsidl nfsio 37166 380138 0 0 3 0x14280 nfsidl nfsio 35360 202950 0 0 3 0x14280 nfsidl nfsio 25688 177552 0 0 3 0x14280 nfsidl nfsio 3554 361071 0 0 3 0x14280 nfsidl nfsio 95511 467582 0 0 3 0x14280 nfsidl nfsio 46948 114032 0 0 3 0x14280 nfsidl nfsio 21082 248599 31657 0 2 0x482 syz-executor.0 55394 63771 1 0 3 0x100083 ttyin getty 92628 181140 0 0 3 0x14200 acct acct 482 471735 0 0 3 0x14200 bored sosplice 31657 345688 64334 0 3 0x82 kqread syz-fuzzer 31657 99736 64334 0 3 0x4000082 nanoslp syz-fuzzer 31657 755 64334 0 3 0x4000082 thrsleep syz-fuzzer 31657 198779 64334 0 3 0x4000082 thrsleep syz-fuzzer 31657 451367 64334 0 3 0x4000082 thrsleep syz-fuzzer 31657 252038 64334 0 3 0x4000082 thrsleep syz-fuzzer 31657 522122 64334 0 3 0x4000082 thrsleep syz-fuzzer 31657 281210 64334 0 3 0x4000082 nanoslp syz-fuzzer 64334 354198 60286 0 3 0x10008a sigsusp ksh 60286 35661 95154 0 3 0x9a kqread sshd 95154 209048 1 0 3 0x88 kqread sshd 49124 327934 91862 74 3 0x100092 bpf pflogd 91862 103587 1 0 3 0x80 netio pflogd 68461 46826 43157 73 3 0x100090 kqread syslogd 43157 223522 1 0 3 0x100082 netio syslogd 31592 264329 1 0 3 0x100080 kqread resolvd 84550 186855 72898 77 3 0x100092 kqread dhcpleased 14772 497363 72898 77 3 0x100092 kqread dhcpleased 72898 189557 1 0 3 0x80 kqread dhcpleased 42630 429017 0 0 3 0x14200 bored smr 97497 410193 0 0 2 0x14200 zerothread 83111 222524 0 0 3 0x14200 aiodoned aiodoned 15165 37887 0 0 3 0x14200 syncer update 38339 325302 0 0 3 0x14200 cleaner cleaner 15137 73417 0 0 3 0x14200 reaper reaper 38766 458709 0 0 3 0x14200 pgdaemon pagedaemon 6553 176172 0 0 3 0x14200 bored viomb 3846 488718 0 0 3 0x40014200 acpi0 acpi0 26047 59134 0 0 7 0x40014200 idle1 *62286 107513 0 0 7 0x14200 softnet 31676 315296 0 0 2 0x14200 systqmp 5633 469192 0 0 3 0x14200 bored systq 9572 492407 0 0 3 0x40014200 bored softclock 82665 99641 0 0 3 0x40014200 idle0 1 76187 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 74630 (syz-executor.1) thread 0xffff8000212517a0 (445789) exclusive rrwlock inode r = 0 (0xfffffd80669c2f80) #0 witness_lock+0x4b0 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4b0 sys/kern/subr_witness.c:1182 #1 rw_enter+0x3e2 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0x8b sys/kern/kern_rwlock.c:461 #3 VOP_LOCK+0x87 sys/kern/vfs_vops.c:534 #4 ufs_ihashins+0x42 sys/ufs/ufs/ufs_ihash.c:140 #5 ffs_vget+0x141 sys/ufs/ffs/ffs_vfsops.c:1347 #6 ffs_inode_alloc+0x1c3 sys/ufs/ffs/ffs_alloc.c:394 #7 ufs_mkdir+0xf4 sys/ufs/ufs/ufs_vnops.c:1162 #8 VOP_MKDIR+0xbf sys/kern/vfs_vops.c:404 #9 domkdirat+0x121 sys/kern/vfs_syscalls.c:3065 #10 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] #10 syscall+0x489 sys/arch/amd64/amd64/trap.c:585 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd80669c2b40) #0 witness_lock+0x4b0 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4b0 sys/kern/subr_witness.c:1182 #1 rw_enter+0x3e2 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0x8b sys/kern/kern_rwlock.c:461 #3 VOP_LOCK+0x87 sys/kern/vfs_vops.c:534 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:579 #5 vfs_lookup+0xdd sys/kern/vfs_lookup.c:413 #6 namei+0x55a sys/kern/vfs_lookup.c:245 #7 domkdirat+0x75 sys/kern/vfs_syscalls.c:3050 #8 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] #8 syscall+0x489 sys/arch/amd64/amd64/trap.c:585 #9 Xsyscall+0x128 Process 62286 (softnet) thread 0xffff800021148000 (107513) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff829eed80) #0 witness_lock+0x4b0 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4b0 sys/kern/subr_witness.c:1182 #1 kpageflttrap+0x229 sys/arch/amd64/amd64/trap.c:274 #2 kerntrap+0xef sys/arch/amd64/amd64/trap.c:318 #3 alltraps_kern_meltdown+0x7b #4 nd6_dad_duplicated+0x28 sys/netinet6/nd6_nbr.c:1265 #5 nd6_ns_input+0xdd4 nd6_dad_ns_input sys/netinet6/nd6_nbr.c:1342 [inline] #5 nd6_ns_input+0xdd4 sys/netinet6/nd6_nbr.c:301 #6 icmp6_input+0xabe sys/netinet6/icmp6.c:686 #7 ip_deliver+0x322 sys/netinet/ip_input.c:658 #8 ip6_input_if+0x978 #9 ipv6_input+0x48 sys/netinet6/ip6_input.c:171 #10 if_input_local+0x136 sys/net/if.c:778 #11 loinput+0x4d sys/net/if_loop.c:238 #12 if_input_process+0xd2 sys/net/if.c:843 #13 ifiq_process+0x80 sys/net/ifq.c:773 #14 taskq_thread+0xe6 sys/kern/kern_task.c:449 #15 proc_trampoline+0x1c exclusive rwlock netlock r = 0 (0xffffffff827a03f0) #0 witness_lock+0x4b0 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4b0 sys/kern/subr_witness.c:1182 #1 if_input_process+0xa1 sys/net/if.c:843 #2 ifiq_process+0x80 sys/net/ifq.c:773 #3 taskq_thread+0xe6 sys/kern/kern_task.c:449 #4 proc_trampoline+0x1c shared rwlock softnet r = 0 (0xffff80000002c070) #0 witness_lock+0x4b0 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4b0 sys/kern/subr_witness.c:1182 #1 taskq_thread+0xcb sys/kern/kern_task.c:445 #2 proc_trampoline+0x1c ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10139 6453K 7149K 78643K 21394 0 pcb 14 8K 8K 78643K 1024 0 rtable 122 20K 22K 78643K 2377 0 ifaddr 70 20K 22K 78643K 1003 0 sysctl 3 1K 1K 78643K 5 0 counters 44 34K 34K 78643K 366 0 ioctlops 0 0K 5K 78643K 2685 0 iov 0 0K 28K 78643K 562 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 5 0 vnodes 1212 76K 77K 78643K 4858 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 9K 78643K 121 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 934 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12598 0 file desc 5 13K 25K 78643K 9617 0 sigio 0 0K 0K 78643K 77 0 proc 79 88K 111K 78643K 1578 0 subproc 26 1K 1K 78643K 422 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 684 0 in_multi 26 1K 2K 78643K 1110 0 ether_multi 1 0K 0K 78643K 166 0 mrt 2 0K 0K 78643K 61 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 91 413K 413K 78643K 91 0 exec 0 0K 2K 78643K 1686 0 pfkey data 0 0K 0K 78643K 2 0 tdb 3 0K 0K 78643K 3 0 pagedep 1 8K 8K 78643K 1 0 inodedep 1 32K 32K 78643K 1 0 newblk 1 0K 0K 78643K 1 0 VM swap 7 26K 26K 78643K 7 0 UVM amap 420 810K 812K 78643K 120727 0 UVM aobj 131 6K 6K 78643K 146 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 1115 0 NDP 7 0K 0K 78643K 283 0 temp 105 4236K 8332K 78643K 178342 0 kqueue 12 18K 32K 78643K 866 0 SYN cache 2 8K 16K 78643K 3 0 ddb{0}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle plcache 128 22 0 0 1 0 1 1 0 8 0 rtpcb 120 571 0 568 1 0 1 1 0 8 0 rtentry 112 740 0 712 2 0 2 2 0 8 0 unpcb 128 5730 0 5715 11 10 1 2 0 8 0 syncache 296 54 0 54 16 16 0 1 0 8 0 tcpqe 32 129 15 129 6 6 0 1 0 8 0 tcpcb 736 7971 0 7961 65 62 3 6 0 8 1 arp 120 108 0 102 1 0 1 1 0 8 0 inpcb 304 12494 0 12480 17 15 2 3 0 8 0 rttmr 72 16 0 16 12 12 0 1 0 8 0 nd6 48 164 0 160 4 3 1 1 0 8 0 pkpcb 40 56 0 56 18 18 0 1 0 8 0 kcovpl 48 32 0 30 1 0 1 1 0 8 0 ppxss 1248 32 0 32 18 18 0 1 0 8 0 pfstscr 40 11 0 11 6 6 0 1 0 8 0 pffrag 232 86 0 85 11 10 1 1 0 482 0 pffrnode 88 86 0 85 11 10 1 1 0 8 0 pffrent 40 940 0 939 11 10 1 1 0 8 0 pfosfp 40 1428 0 1005 5 0 5 5 0 8 0 pfosfpen 112 1428 0 714 21 0 21 21 0 8 0 pfrktable 1344 107 0 89 7 5 2 2 0 8 0 pfpktdelay 88 8 0 8 1 1 0 1 0 8 0 pftag 88 16 0 14 4 3 1 1 0 8 0 pfstitem 24 52 0 50 1 0 1 1 0 8 0 pfstkey 112 72 0 70 1 0 1 1 0 8 0 pfstate 320 63 0 61 2 1 1 2 0 8 0 pfsrctr 152 5 0 5 1 1 0 1 0 8 0 pfrule 1360 347 0 278 7 1 6 6 0 8 0 art_heap8 4096 8 0 7 6 5 1 3 0 8 0 art_heap4 256 3568 0 3426 52 41 11 17 0 8 1 art_table 32 3576 0 3433 4 1 3 3 0 8 0 art_node 16 728 0 701 1 0 1 1 0 8 0 sysvmsgpl 40 39 0 10 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 930 0 920 1 0 1 1 0 8 0 shmpl 112 143 0 15 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 13531 0 12090 92 1 91 91 0 8 0 ffsino 272 13531 0 12090 98 1 97 97 0 8 0 nchpl 144 26583 0 26125 61 42 19 61 0 8 0 uvmvnodes 72 5926 0 0 108 0 108 108 0 8 0 vnodes 224 5926 0 0 349 0 349 349 0 8 0 namei 1024 80815 0 80814 11 10 1 1 0 8 0 percpumem 16 195 0 161 1 0 1 1 0 8 0 vcpupl 2048 82 0 2 11 0 11 11 0 8 0 vmpool 560 100 0 20 6 0 6 6 0 8 0 pfiaddrpl 120 42 0 23 1 0 1 1 0 8 0 scsiplug 72 10 0 10 8 8 0 1 0 8 0 scxspl 216 98427 0 98427 32 30 2 8 0 8 2 plimitpl 152 685 0 676 1 0 1 1 0 8 0 sigapl 424 9842 0 9788 15 8 7 7 0 8 1 futexpl 64 130692 0 130692 14 13 1 1 0 8 1 knotepl 112 172 0 0 4 1 3 3 0 8 0 kqueuepl 216 2537 0 2519 20 18 2 2 0 8 1 pipepl 336 1447 0 1437 8 6 2 3 0 8 0 fdescpl 496 9763 0 9745 3 0 3 3 0 8 0 filepl 152 57208 0 57099 26 20 6 7 0 8 1 lockfpl 104 1965 0 1963 1 0 1 1 0 8 0 lockfspl 48 636 0 634 1 0 1 1 0 8 0 sessionpl 144 49 0 38 1 0 1 1 0 8 0 pgrppl 48 79 0 68 1 0 1 1 0 8 0 ucredpl 96 6714 0 6699 1 0 1 1 0 8 0 zombiepl 144 9788 0 9788 3 2 1 1 0 8 1 processpl 1064 9842 0 9788 4 0 4 4 0 8 0 procpl 672 25225 0 25163 7 1 6 6 0 8 0 srpgc 96 10 0 10 5 5 0 1 0 8 0 sosppl 168 121 0 121 28 27 1 1 0 8 1 sockpl 480 18885 0 18853 62 56 6 8 0 8 2 mcl64k 65536 60 0 0 4 0 4 4 0 8 0 mcl16k 16384 18 0 0 3 1 2 3 0 8 0 mcl12k 12288 27 0 0 3 1 2 2 0 8 0 mcl9k 9216 17 0 0 2 0 2 2 0 8 0 mcl8k 8192 20 0 0 3 0 3 3 0 8 0 mcl4k 4096 18 0 0 3 0 3 3 0 8 0 mcl2k2 2112 10 0 0 1 0 1 1 0 8 0 mcl2k 2048 259 0 0 24 5 19 24 0 8 0 mtagpl 96 488 0 0 12 7 5 12 0 8 0 mbufpl 256 1249 0 0 75 1 74 74 0 8 0 bufpl 280 23831 0 17502 453 0 453 453 0 8 0 anonpl 24 2843380 0 2826243 348 232 116 137 0 186 0 amapchunkpl 152 302063 0 301387 213 178 35 42 0 158 7 amappl16 200 25422 0 24776 223 188 35 45 0 8 0 amappl15 192 1488 0 1481 1 0 1 1 0 8 0 amappl14 184 1337 0 1335 1 0 1 1 0 8 0 amappl13 176 746 0 744 1 0 1 1 0 8 0 amappl12 168 347 0 345 1 0 1 1 0 8 0 amappl11 160 2263 0 2245 1 0 1 1 0 8 0 amappl10 152 686 0 682 1 0 1 1 0 8 0 amappl9 144 2645 0 2640 1 0 1 1 0 8 0 amappl8 136 2884 0 2809 4 1 3 3 0 8 0 amappl7 128 2005 0 1996 1 0 1 1 0 8 0 amappl6 120 2575 0 2562 1 0 1 1 0 8 0 amappl5 112 6501 0 6470 1 0 1 1 0 8 0 amappl4 104 6955 0 6928 1 0 1 1 0 8 0 amappl3 96 1390 0 1365 1 0 1 1 0 8 0 amappl2 88 10694 0 10643 4 2 2 2 0 8 0 amappl1 80 170558 0 170116 13 3 10 13 0 8 0 amappl 88 119657 0 119426 6 0 6 6 0 92 0 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma1024 1024 1 0 0 1 0 1 1 0 8 0 dma256 256 6 0 6 1 1 0 1 0 8 0 dma128 128 253 0 253 1 1 0 1 0 8 0 dma64 64 6 0 6 1 1 0 1 0 8 0 dma32 32 7 0 7 1 1 0 1 0 8 0 dma16 16 18 0 17 1 0 1 1 0 8 0 aobjpl 64 145 0 15 3 0 3 3 0 8 0 uaddrrnd 24 9863 0 9765 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 9863 0 9765 1 0 1 1 0 8 0 vmmpekpl 168 64882 0 64836 3 0 3 3 0 8 0 vmmpepl 168 889964 0 887858 540 415 125 125 0 357 26 vmsppl 368 9862 0 9765 12 3 9 9 0 8 0 rwobjpl 56 211709 0 210182 66 43 23 25 0 8 1 pdppl 4096 19734 0 19610 186 59 127 127 0 8 3 pvpl 32 5050784 0 5030202 624 443 181 245 0 265 0 pmappl 224 9862 0 9765 7 1 6 6 0 8 0 extentpl 40 58 0 40 1 0 1 1 0 8 0 phpool 112 666 0 198 14 0 14 14 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace nd6_dad_duplicated(0) at nd6_dad_duplicated+0x28 sys/netinet6/nd6_nbr.c:1265 nd6_ns_input(fffffd8070b76300,28,18) at nd6_ns_input+0xdd4 nd6_dad_ns_input sys/netinet6/nd6_nbr.c:1342 [inline] nd6_ns_input(fffffd8070b76300,28,18) at nd6_ns_input+0xdd4 sys/netinet6/nd6_nbr.c:301 icmp6_input(ffff8000211675a8,ffff8000211675b4,3a,18) at icmp6_input+0xabe sys/netinet6/icmp6.c:686 ip_deliver(ffff8000211675a8,ffff8000211675b4,3a,18) at ip_deliver+0x322 sys/netinet/ip_input.c:658 ip6_input_if(ffff8000211675a8,ffff8000211675b4,29,0,ffff8000006ae000) at ip6_input_if+0x978 ipv6_input(ffff8000006ae000,fffffd806694fe00) at ipv6_input+0x48 sys/netinet6/ip6_input.c:171 if_input_local(ffff8000006ae000,fffffd806694fe00,18) at if_input_local+0x136 sys/net/if.c:778 loinput(ffff8000006ae000,fffffd806694fe00) at loinput+0x4d sys/net/if_loop.c:238 if_input_process(ffff8000006ae000,ffff8000211676e8) at if_input_process+0xd2 sys/net/if.c:843 ifiq_process(ffff8000006ae450) at ifiq_process+0x80 sys/net/ifq.c:773 taskq_thread(ffff80000002c000) at taskq_thread+0xe6 sys/kern/kern_task.c:449 end trace frame: 0x0, count: -11 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp x86_ipi_db(ffff800020d38ff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23 acpicpu_idle() at acpicpu_idle+0x2eb sys/dev/acpi/acpicpu.c:1206 sched_idle(ffff800020d38ff0) at sched_idle+0x417 sys/kern/kern_sched.c:178 end trace frame: 0x0, count: 10 ddb{1}> trace x86_ipi_db(ffff800020d38ff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23 acpicpu_idle() at acpicpu_idle+0x2eb sys/dev/acpi/acpicpu.c:1206 sched_idle(ffff800020d38ff0) at sched_idle+0x417 sys/kern/kern_sched.c:178 end trace frame: 0x0, count: -5