uvm_fault(0xffffffff82839fb8, 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 128794 6174 0 0x2 0 0 syz-executor.0 *327140 67452 0 0x14000 0x200 1K softnet nd6_dad_duplicated(0) at nd6_dad_duplicated+0x28 sys/netinet6/nd6_nbr.c:1265 nd6_ns_input(fffffd8068513000,28,18) at nd6_ns_input+0xdd4 nd6_dad_ns_input sys/netinet6/nd6_nbr.c:1342 [inline] nd6_ns_input(fffffd8068513000,28,18) at nd6_ns_input+0xdd4 sys/netinet6/nd6_nbr.c:301 icmp6_input(ffff800021167d08,ffff800021167d14,3a,18) at icmp6_input+0xabe sys/netinet6/icmp6.c:686 ip_deliver(ffff800021167d08,ffff800021167d14,3a,18) at ip_deliver+0x322 sys/netinet/ip_input.c:658 ip6_input_if(ffff800021167d08,ffff800021167d14,29,0,ffff8000006ae000) at ip6_input_if+0x978 ipv6_input(ffff8000006ae000,fffffd8076d20500) at ipv6_input+0x48 sys/netinet6/ip6_input.c:171 if_input_local(ffff8000006ae000,fffffd8076d20500,18) at if_input_local+0x136 sys/net/if.c:778 loinput(ffff8000006ae000,fffffd8076d20500) at loinput+0x4d sys/net/if_loop.c:238 if_input_process(ffff8000006ae000,ffff800021167e48) 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{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic *cpu1: uvm_fault(0xffffffff82839fb8, 0x10, 0, 1) -> e ddb{1}> trace nd6_dad_duplicated(0) at nd6_dad_duplicated+0x28 sys/netinet6/nd6_nbr.c:1265 nd6_ns_input(fffffd8068513000,28,18) at nd6_ns_input+0xdd4 nd6_dad_ns_input sys/netinet6/nd6_nbr.c:1342 [inline] nd6_ns_input(fffffd8068513000,28,18) at nd6_ns_input+0xdd4 sys/netinet6/nd6_nbr.c:301 icmp6_input(ffff800021167d08,ffff800021167d14,3a,18) at icmp6_input+0xabe sys/netinet6/icmp6.c:686 ip_deliver(ffff800021167d08,ffff800021167d14,3a,18) at ip_deliver+0x322 sys/netinet/ip_input.c:658 ip6_input_if(ffff800021167d08,ffff800021167d14,29,0,ffff8000006ae000) at ip6_input_if+0x978 ipv6_input(ffff8000006ae000,fffffd8076d20500) at ipv6_input+0x48 sys/netinet6/ip6_input.c:171 if_input_local(ffff8000006ae000,fffffd8076d20500,18) at if_input_local+0x136 sys/net/if.c:778 loinput(ffff8000006ae000,fffffd8076d20500) at loinput+0x4d sys/net/if_loop.c:238 if_input_process(ffff8000006ae000,ffff800021167e48) 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{1}> show registers rdi 0 rsi 0 rbp 0xffff8000211678a0 rbx 0 rdx 0 rcx 0x7 rax 0xffff800021148000 r8 0xffffffff8116ca3c nd6_ns_input+0x3bc r9 0x1 r10 0xf181fb4c136aa8b7 r11 0x797244d82a39e01 r12 0 r13 0x3 r14 0 r15 0xffff800000b9ca00 rip 0xffffffff8116f268 nd6_dad_duplicated+0x28 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800021167820 ss 0x10 nd6_dad_duplicated+0x28: movq 0x10(%r14),%r13 ddb{1}> show proc PROC (softnet) pid=327140 stat=onproc flags process=14000 proc=200 pri=32, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff800021148540,0xffff8000211482b0 process=0xffff8000ffffc428 user=0xffff800021162000, vmspace=0xffffffff82839fb8 estcpu=0, cpticks=1, pctcpu=0.1 user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 22803 158700 69701 0 2 0 syz-executor.1 22803 146096 69701 0 2 0x4000000 syz-executor.1 6174 128794 98202 0 7 0x2 syz-executor.0 40854 189943 1 0 3 0x100083 ttyin getty 69701 229381 98202 0 3 0x82 nanoslp syz-executor.1 76050 4996 0 0 3 0x14280 nfsidl nfsio 11674 265541 0 0 3 0x14280 nfsidl nfsio 91935 29782 0 0 3 0x14280 nfsidl nfsio 49924 463648 0 0 3 0x14280 nfsidl nfsio 7261 154714 0 0 3 0x14280 nfsidl nfsio 21128 84546 0 0 3 0x14280 nfsidl nfsio 87936 467214 0 0 3 0x14280 nfsidl nfsio 57336 67622 0 0 3 0x14280 nfsidl nfsio 51279 77397 0 0 3 0x14280 nfsidl nfsio 29040 489559 0 0 3 0x14280 nfsidl nfsio 40507 264219 0 0 3 0x14280 nfsidl nfsio 24160 341409 0 0 3 0x14280 nfsidl nfsio 57678 507035 0 0 3 0x14280 nfsidl nfsio 77580 422425 0 0 3 0x14280 nfsidl nfsio 78416 388632 0 0 3 0x14280 nfsidl nfsio 98696 40868 0 0 3 0x14280 nfsidl nfsio 42762 206094 0 0 3 0x14280 nfsidl nfsio 60960 273675 0 0 3 0x14280 nfsidl nfsio 47895 432990 0 0 3 0x14280 nfsidl nfsio 58678 364527 0 0 3 0x14280 nfsidl nfsio 62177 326466 0 0 3 0x14200 acct acct 13334 178819 0 0 3 0x14200 bored sosplice 98202 275062 34078 0 3 0x82 thrsleep syz-fuzzer 98202 438338 34078 0 3 0x4000082 nanoslp syz-fuzzer 98202 231106 34078 0 2 0x4000002 syz-fuzzer 98202 493572 34078 0 3 0x4000082 thrsleep syz-fuzzer 98202 143751 34078 0 3 0x4000082 thrsleep syz-fuzzer 98202 447205 34078 0 2 0x4000082 syz-fuzzer 98202 181030 34078 0 3 0x4000082 thrsleep syz-fuzzer 98202 245615 34078 0 3 0x4000082 thrsleep syz-fuzzer 34078 206728 11897 0 3 0x10008a sigsusp ksh 11897 419282 58892 0 2 0x12 sshd 58892 185473 1 0 3 0x88 kqread sshd 4769 305308 55633 74 3 0x100092 bpf pflogd 55633 47030 1 0 3 0x80 netio pflogd 29496 397065 665 73 3 0x100090 kqread syslogd 665 136149 1 0 3 0x100082 netio syslogd 13875 40057 1 0 3 0x100080 kqread resolvd 81548 287626 443 77 3 0x100092 kqread dhcpleased 83258 280685 443 77 3 0x100092 kqread dhcpleased 443 43409 1 0 3 0x80 kqread dhcpleased 65869 362342 0 0 3 0x14200 bored smr 24850 333953 0 0 3 0x14200 pgzero zerothread 45548 493005 0 0 3 0x14200 aiodoned aiodoned 13954 300842 0 0 3 0x14200 syncer update 8709 174818 0 0 3 0x14200 cleaner cleaner 37606 146474 0 0 3 0x14200 reaper reaper 16866 323845 0 0 3 0x14200 pgdaemon pagedaemon 36264 448190 0 0 3 0x14200 bored viomb 75169 482194 0 0 3 0x40014200 acpi0 acpi0 82373 397506 0 0 3 0x40014200 idle1 *67452 327140 0 0 7 0x14200 softnet 99452 362262 0 0 2 0x14200 systqmp 35031 169658 0 0 3 0x14200 bored systq 16576 165692 0 0 3 0x40014200 bored softclock 96260 359400 0 0 3 0x40014200 idle0 1 329646 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 67452 (softnet) thread 0xffff800021148000 (327140) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82977ae0) #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 (0xffffffff827f2540) #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{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10157 6458K 6905K 78643K 23584 0 pcb 14 18K 20K 78643K 1340 0 rtable 145 15K 17K 78643K 2982 0 ifaddr 70 18K 18K 78643K 1025 0 sysctl 2 0K 2K 78643K 5 0 counters 44 34K 34K 78643K 248 0 ioctlops 0 0K 8K 78643K 2845 0 iov 0 0K 24K 78643K 1067 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 5 0 vnodes 1394 88K 88K 78643K 5351 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 97 0 VM map 2 1K 1K 78643K 2 0 sem 10 0K 0K 78643K 10 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12598 0 file desc 5 13K 25K 78643K 7852 0 sigio 0 0K 0K 78643K 215 0 proc 73 87K 111K 78643K 1254 0 subproc 26 1K 1K 78643K 312 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 377 0 in_multi 34 2K 2K 78643K 753 0 ether_multi 1 0K 0K 78643K 122 0 mrt 4 0K 0K 78643K 62 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 229 1023K 1023K 78643K 229 0 exec 0 0K 2K 78643K 1584 0 pfkey data 0 0K 1K 78643K 78 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 281 204K 206K 78643K 103206 0 UVM aobj 131 7K 7K 78643K 140 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 1451 0 NDP 7 0K 0K 78643K 199 0 temp 103 4232K 4330K 78643K 97897 0 kqueue 12 18K 31K 78643K 354 0 SYN cache 2 8K 16K 78643K 3 0 ddb{1}> 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 120 718 0 715 14 13 1 3 0 8 0 rtentry 112 568 0 532 3 1 2 2 0 8 0 unpcb 128 4204 0 4189 59 58 1 9 0 8 0 syncache 296 18 0 18 6 6 0 1 0 8 0 tcpcb 736 4544 0 4539 129 128 1 15 0 8 0 arp 120 92 0 86 1 0 1 1 0 8 0 inpcb 304 12421 0 12411 138 137 1 11 0 8 0 rttmr 72 16 0 16 6 6 0 1 0 8 0 nd6 48 124 0 118 2 1 1 1 0 8 0 pkpcb 40 160 0 160 7 7 0 1 0 8 0 kcovpl 48 24 0 22 1 0 1 1 0 8 0 ppxss 1248 15 0 15 5 5 0 1 0 8 0 pfstscr 40 25 0 25 5 5 0 1 0 8 0 pffrag 232 128 0 128 6 6 0 1 0 482 0 pffrnode 88 128 0 128 6 6 0 1 0 8 0 pffrent 40 4778 0 4778 10 10 0 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 600 0 578 4 2 2 3 0 8 0 pftag 88 2 0 0 1 0 1 1 0 8 0 pfqueue 264 8 0 8 2 2 0 1 0 8 0 pfstitem 24 50 0 48 1 0 1 1 0 8 0 pfstkey 112 84 0 82 1 0 1 1 0 8 0 pfstate 320 65 0 63 3 2 1 3 0 8 0 pfrule 1360 863 0 784 8 1 7 7 0 8 0 art_heap8 4096 4 0 3 3 2 1 3 0 8 0 art_heap4 256 2784 0 2603 31 19 12 14 0 8 0 art_table 32 2788 0 2606 4 2 2 2 0 8 0 art_node 16 566 0 534 1 0 1 1 0 8 0 sysvmsgpl 40 20 0 5 1 0 1 1 0 8 0 semupl 112 3 0 3 1 1 0 1 0 8 0 semapl 112 8 0 0 1 0 1 1 0 8 0 shmpl 112 137 0 9 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 11100 0 9674 92 2 90 90 0 8 0 ffsino 272 11100 0 9674 98 2 96 96 0 8 0 nchpl 144 21477 0 19876 61 1 60 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 69259 0 69259 11 10 1 1 0 8 1 percpumem 16 136 0 102 1 0 1 1 0 8 0 vcpupl 2048 13 0 0 2 0 2 2 0 8 0 vmpool 560 28 0 15 2 1 1 1 0 8 0 pfiaddrpl 120 208 0 171 3 1 2 2 0 8 0 scsiplug 72 3 0 3 1 1 0 1 0 8 0 scxspl 216 66619 0 66619 22 21 1 8 0 8 1 plimitpl 152 656 0 647 1 0 1 1 0 8 0 sigapl 424 8061 0 8007 7 0 7 7 0 8 0 futexpl 64 59233 0 59233 7 6 1 1 0 8 1 knotepl 112 104 0 0 3 0 3 3 0 8 0 kqueuepl 216 1771 0 1763 49 48 1 6 0 8 0 pipepl 336 2377 0 2367 64 63 1 7 0 8 0 fdescpl 496 8023 0 8005 3 0 3 3 0 8 0 filepl 152 53583 0 53473 125 119 6 14 0 8 1 lockfpl 104 2510 0 2507 6 5 1 2 0 8 0 lockfspl 48 642 0 639 1 0 1 1 0 8 0 sessionpl 144 42 0 31 1 0 1 1 0 8 0 pgrppl 48 77 0 66 1 0 1 1 0 8 0 ucredpl 96 4834 0 4822 1 0 1 1 0 8 0 zombiepl 144 8007 0 8007 7 6 1 1 0 8 1 processpl 1064 8061 0 8007 4 0 4 4 0 8 0 procpl 672 24376 0 24314 23 17 6 7 0 8 0 srpgc 96 14 0 14 5 5 0 1 0 8 0 sosppl 168 32 0 32 11 11 0 1 0 8 0 sockpl 480 17513 0 17485 348 344 4 34 0 8 0 mcl64k 65536 31 0 0 3 1 2 3 0 8 0 mcl16k 16384 12 0 0 2 0 2 2 0 8 0 mcl12k 12288 33 0 0 2 0 2 2 0 8 0 mcl9k 9216 24 0 0 2 0 2 2 0 8 0 mcl8k 8192 31 0 0 4 2 2 3 0 8 0 mcl4k 4096 23 0 0 3 1 2 3 0 8 0 mcl2k2 2112 8 0 0 1 0 1 1 0 8 0 mcl2k 2048 297 0 0 29 8 21 29 0 8 0 mtagpl 96 229 0 0 4 0 4 4 0 8 0 mbufpl 256 3055 0 0 149 0 149 149 0 8 0 bufpl 280 17226 0 10897 453 0 453 453 0 8 0 anonpl 24 2355329 0 2340814 251 136 115 134 0 186 0 amapchunkpl 152 254763 0 254120 88 60 28 39 0 158 1 amappl16 200 21204 0 20607 156 124 32 45 0 8 0 amappl15 192 2242 0 2237 1 0 1 1 0 8 0 amappl14 184 1394 0 1394 1 1 0 1 0 8 0 amappl13 176 991 0 989 1 0 1 1 0 8 0 amappl12 168 84 0 84 1 1 0 1 0 8 0 amappl11 160 955 0 936 1 0 1 1 0 8 0 amappl10 152 835 0 830 1 0 1 1 0 8 0 amappl9 144 1720 0 1718 1 0 1 1 0 8 0 amappl8 136 2157 0 2104 2 0 2 2 0 8 0 amappl7 128 1559 0 1549 1 0 1 1 0 8 0 amappl6 120 1619 0 1608 1 0 1 1 0 8 0 amappl5 112 7054 0 7032 1 0 1 1 0 8 0 amappl4 104 3777 0 3749 1 0 1 1 0 8 0 amappl3 96 776 0 758 1 0 1 1 0 8 0 amappl2 88 9227 0 9183 3 1 2 2 0 8 0 amappl1 80 143608 0 143164 14 4 10 13 0 8 0 amappl 88 102389 0 102206 5 0 5 5 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 64 139 0 9 3 0 3 3 0 8 0 uaddrrnd 24 8051 0 8020 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 8051 0 8020 1 0 1 1 0 8 0 vmmpekpl 168 67137 0 67110 2 0 2 2 0 8 0 vmmpepl 168 738583 0 736687 395 305 90 116 0 357 0 vmsppl 368 8050 0 8020 4 1 3 3 0 8 0 rwobjpl 56 183071 0 181676 54 33 21 24 0 8 1 pdppl 4096 16110 0 16053 88 29 59 59 0 8 2 pvpl 32 3935577 0 3917511 434 255 179 237 0 265 0 pmappl 224 8050 0 8020 2 0 2 2 0 8 0 extentpl 40 58 0 40 1 0 1 1 0 8 0 phpool 112 726 0 271 14 0 14 14 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp x86_ipi_db(ffffffff827aaff0) 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 __mp_lock(ffffffff829778d8) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff829778d8) at __mp_lock+0x122 sys/kern/kern_lock.c:147 syscall(ffff800024691cd0) at syscall+0x3ef mi_syscall sys/sys/syscall_mi.h:93 [inline] syscall(ffff800024691cd0) at syscall+0x3ef sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffffaac0, count: 9 ddb{0}> trace x86_ipi_db(ffffffff827aaff0) 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 __mp_lock(ffffffff829778d8) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff829778d8) at __mp_lock+0x122 sys/kern/kern_lock.c:147 syscall(ffff800024691cd0) at syscall+0x3ef mi_syscall sys/sys/syscall_mi.h:93 [inline] syscall(ffff800024691cd0) at syscall+0x3ef sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffffaac0, count: -6 ddb{0}> machine ddbcpu 1 Stopped at nd6_dad_duplicated+0x28: movq 0x10(%r14),%r13 nd6_dad_duplicated(0) at nd6_dad_duplicated+0x28 sys/netinet6/nd6_nbr.c:1265 nd6_ns_input(fffffd8068513000,28,18) at nd6_ns_input+0xdd4 nd6_dad_ns_input sys/netinet6/nd6_nbr.c:1342 [inline] nd6_ns_input(fffffd8068513000,28,18) at nd6_ns_input+0xdd4 sys/netinet6/nd6_nbr.c:301 icmp6_input(ffff800021167d08,ffff800021167d14,3a,18) at icmp6_input+0xabe sys/netinet6/icmp6.c:686 ip_deliver(ffff800021167d08,ffff800021167d14,3a,18) at ip_deliver+0x322 sys/netinet/ip_input.c:658 ip6_input_if(ffff800021167d08,ffff800021167d14,29,0,ffff8000006ae000) at ip6_input_if+0x978 ipv6_input(ffff8000006ae000,fffffd8076d20500) at ipv6_input+0x48 sys/netinet6/ip6_input.c:171 if_input_local(ffff8000006ae000,fffffd8076d20500,18) at if_input_local+0x136 sys/net/if.c:778 loinput(ffff8000006ae000,fffffd8076d20500) at loinput+0x4d sys/net/if_loop.c:238 if_input_process(ffff8000006ae000,ffff800021167e48) 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 ddb{1}> trace nd6_dad_duplicated(0) at nd6_dad_duplicated+0x28 sys/netinet6/nd6_nbr.c:1265 nd6_ns_input(fffffd8068513000,28,18) at nd6_ns_input+0xdd4 nd6_dad_ns_input sys/netinet6/nd6_nbr.c:1342 [inline] nd6_ns_input(fffffd8068513000,28,18) at nd6_ns_input+0xdd4 sys/netinet6/nd6_nbr.c:301 icmp6_input(ffff800021167d08,ffff800021167d14,3a,18) at icmp6_input+0xabe sys/netinet6/icmp6.c:686 ip_deliver(ffff800021167d08,ffff800021167d14,3a,18) at ip_deliver+0x322 sys/netinet/ip_input.c:658 ip6_input_if(ffff800021167d08,ffff800021167d14,29,0,ffff8000006ae000) at ip6_input_if+0x978 ipv6_input(ffff8000006ae000,fffffd8076d20500) at ipv6_input+0x48 sys/netinet6/ip6_input.c:171 if_input_local(ffff8000006ae000,fffffd8076d20500,18) at if_input_local+0x136 sys/net/if.c:778 loinput(ffff8000006ae000,fffffd8076d20500) at loinput+0x4d sys/net/if_loop.c:238 if_input_process(ffff8000006ae000,ffff800021167e48) 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