uvm_fault(0xffffffff829fcb88, 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 *224078 19011 0 0x14000 0x200 0K softnet nd6_dad_duplicated(0) at nd6_dad_duplicated+0x28 sys/netinet6/nd6_nbr.c:1265 nd6_ns_input(fffffd8079537000,28,18) at nd6_ns_input+0xdd4 nd6_dad_ns_input sys/netinet6/nd6_nbr.c:1342 [inline] nd6_ns_input(fffffd8079537000,28,18) at nd6_ns_input+0xdd4 sys/netinet6/nd6_nbr.c:301 icmp6_input(ffff800021167048,ffff800021167054,3a,18) at icmp6_input+0xabe sys/netinet6/icmp6.c:686 ip_deliver(ffff800021167048,ffff800021167054,3a,18) at ip_deliver+0x322 sys/netinet/ip_input.c:658 ip6_input_if(ffff800021167048,ffff800021167054,29,0,ffff8000006ae000) at ip6_input_if+0x978 ipv6_input(ffff8000006ae000,fffffd807946ae00) at ipv6_input+0x48 sys/netinet6/ip6_input.c:171 if_input_local(ffff8000006ae000,fffffd807946ae00,18) at if_input_local+0x136 sys/net/if.c:778 loinput(ffff8000006ae000,fffffd807946ae00) at loinput+0x4d sys/net/if_loop.c:238 if_input_process(ffff8000006ae000,ffff800021167188) 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(0xffffffff829fcb88, 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(fffffd8079537000,28,18) at nd6_ns_input+0xdd4 nd6_dad_ns_input sys/netinet6/nd6_nbr.c:1342 [inline] nd6_ns_input(fffffd8079537000,28,18) at nd6_ns_input+0xdd4 sys/netinet6/nd6_nbr.c:301 icmp6_input(ffff800021167048,ffff800021167054,3a,18) at icmp6_input+0xabe sys/netinet6/icmp6.c:686 ip_deliver(ffff800021167048,ffff800021167054,3a,18) at ip_deliver+0x322 sys/netinet/ip_input.c:658 ip6_input_if(ffff800021167048,ffff800021167054,29,0,ffff8000006ae000) at ip6_input_if+0x978 ipv6_input(ffff8000006ae000,fffffd807946ae00) at ipv6_input+0x48 sys/netinet6/ip6_input.c:171 if_input_local(ffff8000006ae000,fffffd807946ae00,18) at if_input_local+0x136 sys/net/if.c:778 loinput(ffff8000006ae000,fffffd807946ae00) at loinput+0x4d sys/net/if_loop.c:238 if_input_process(ffff8000006ae000,ffff800021167188) 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 0xffff800021166be0 rbx 0 rdx 0 rcx 0x7 rax 0xffff8000211482a0 r8 0xffffffff81188f6c nd6_ns_input+0x3bc r9 0x1 r10 0x6f0f86e561e75034 r11 0xcc736ebd9e15cb35 r12 0 r13 0x3 r14 0 r15 0xffff800000d37d00 rip 0xffffffff8118b798 nd6_dad_duplicated+0x28 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800021166b60 ss 0x10 nd6_dad_duplicated+0x28: movq 0x10(%r14),%r13 ddb{0}> show proc PROC (softnet) pid=224078 stat=onproc flags process=14000 proc=200 pri=32, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff800021148000,0xffff8000211487f0 process=0xffff8000ffffd8f0 user=0xffff800021162000, vmspace=0xffffffff829fcb88 estcpu=0, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 91966 108713 51331 0 2 0 syz-executor.0 91966 234709 51331 0 2 0x4000000 syz-executor.0 90284 176498 72773 0 2 0x2 syz-executor.1 51331 172952 72773 0 2 0x482 syz-executor.0 6643 469699 1 0 3 0x100083 ttyin getty 32464 64212 0 0 3 0x14200 acct acct 2797 181178 0 0 3 0x14280 nfsidl nfsio 44601 269243 0 0 3 0x14280 nfsidl nfsio 38838 148766 0 0 3 0x14280 nfsidl nfsio 18272 51871 0 0 3 0x14280 nfsidl nfsio 85044 8715 0 0 3 0x14280 nfsidl nfsio 14783 182344 0 0 3 0x14280 nfsidl nfsio 60709 257654 0 0 3 0x14280 nfsidl nfsio 10348 356507 0 0 3 0x14280 nfsidl nfsio 24350 312706 0 0 3 0x14280 nfsidl nfsio 8860 423374 0 0 3 0x14280 nfsidl nfsio 53253 303414 0 0 3 0x14280 nfsidl nfsio 92418 365534 0 0 3 0x14280 nfsidl nfsio 29807 346788 0 0 3 0x14280 nfsidl nfsio 10612 420112 0 0 3 0x14280 nfsidl nfsio 37602 47943 0 0 3 0x14280 nfsidl nfsio 97892 291700 0 0 3 0x14280 nfsidl nfsio 56182 469520 0 0 3 0x14280 nfsidl nfsio 99313 345165 0 0 3 0x14280 nfsidl nfsio 50182 513935 0 0 3 0x14280 nfsidl nfsio 19097 238596 0 0 3 0x14280 nfsidl nfsio 72035 57523 0 0 3 0x14200 bored sosplice 72773 193119 70540 0 3 0x82 nanoslp syz-fuzzer 72773 1552 70540 0 3 0x4000082 nanoslp syz-fuzzer 72773 294014 70540 0 3 0x4000082 thrsleep syz-fuzzer 72773 106148 70540 0 3 0x4000082 thrsleep syz-fuzzer 72773 22224 70540 0 3 0x4000082 thrsleep syz-fuzzer 72773 346546 70540 0 3 0x4000082 thrsleep syz-fuzzer 72773 323337 70540 0 3 0x4000082 kqread syz-fuzzer 72773 15360 70540 0 3 0x4000082 thrsleep syz-fuzzer 72773 190204 70540 0 3 0x4000082 thrsleep syz-fuzzer 70540 452157 54241 0 3 0x10008a sigsusp ksh 54241 292865 75181 0 3 0x9a kqread sshd 75181 380971 1 0 3 0x88 kqread sshd 30098 344444 35391 74 3 0x100092 bpf pflogd 35391 18389 1 0 3 0x80 netio pflogd 45449 53369 91449 73 3 0x100090 kqread syslogd 91449 143163 1 0 3 0x100082 netio syslogd 81554 46127 1 0 3 0x100080 kqread resolvd 29271 360206 72402 77 3 0x100092 kqread dhcpleased 4185 46517 72402 77 3 0x100092 kqread dhcpleased 72402 36288 1 0 3 0x80 kqread dhcpleased 25852 41762 0 0 3 0x14200 bored smr 35408 78301 0 0 2 0x14200 zerothread 42581 511741 0 0 3 0x14200 aiodoned aiodoned 7751 199290 0 0 3 0x14200 syncer update 87883 345703 0 0 3 0x14200 cleaner cleaner 51319 287756 0 0 3 0x14200 reaper reaper 70589 305756 0 0 3 0x14200 pgdaemon pagedaemon 12257 242671 0 0 3 0x14200 bored viomb 35265 119931 0 0 3 0x40014200 acpi0 acpi0 85373 155275 0 0 7 0x40014200 idle1 *19011 224078 0 0 7 0x14200 softnet 12719 466510 0 0 2 0x14200 systqmp 4885 394043 0 0 3 0x14200 bored systq 51912 318489 0 0 3 0x40014200 bored softclock 42916 458800 0 0 3 0x40014200 idle0 1 427986 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 90284 (syz-executor.1) thread 0xffff8000fffec2a8 (176498) exclusive rrwlock inode r = 0 (0xfffffd8061757d58) #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 (0xfffffd806e0b44e0) #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 19011 (softnet) thread 0xffff8000211482a0 (224078) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82983db8) #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 (0xffffffff827f2760) #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 10168 6451K 7488K 78643K 125288 0 pcb 14 20K 23K 78643K 5392 0 rtable 133 25K 28K 78643K 7886 0 ifaddr 72 24K 28K 78643K 3057 0 sysctl 2 0K 2K 78643K 8 0 counters 46 34K 35K 78643K 882 0 ioctlops 0 0K 4K 78643K 7919 0 iov 0 0K 24K 78643K 2686 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 5 0 vnodes 1537 97K 97K 78643K 32716 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 182 0 VM map 2 1K 1K 78643K 2 0 sem 10 1K 1K 78643K 17 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12598 0 file desc 5 13K 25K 78643K 30691 0 sigio 0 0K 0K 78643K 1727 0 proc 75 87K 111K 78643K 3608 0 subproc 26 1K 2K 78643K 1052 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 2272 0 in_multi 19 1K 2K 78643K 3284 0 ether_multi 1 0K 0K 78643K 558 0 mrt 5 0K 0K 78643K 142 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 265 1182K 1182K 78643K 265 0 exec 0 0K 2K 78643K 5887 0 pfkey data 0 0K 1K 78643K 84 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 606 1535K 1539K 78643K 375815 0 UVM aobj 131 4K 4K 78643K 134 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 2271 0 NDP 8 0K 0K 78643K 798 0 temp 104 4226K 8310K 78643K 310022 0 kqueue 13 20K 28K 78643K 1393 0 SYN cache 2 16K 16K 78643K 2 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 2273 0 2270 31 30 1 5 0 8 0 rtentry 112 2079 0 2056 2 0 2 2 0 8 0 unpcb 128 30402 0 30387 256 253 3 9 0 8 2 syncache 296 82 0 82 25 25 0 1 0 8 0 tcpqe 32 35 0 35 12 12 0 1 0 8 0 tcpcb 736 10893 0 10889 424 417 7 19 0 8 6 arp 120 262 0 258 1 0 1 1 0 8 0 inpcb 304 34465 0 34454 530 524 6 14 0 8 5 rttmr 72 26 0 26 6 6 0 1 0 8 0 nd6 48 494 0 491 3 2 1 1 0 8 0 pkpcb 40 291 0 291 30 30 0 1 0 8 0 kcovpl 48 79 0 77 1 0 1 1 0 8 0 ppxss 1248 114 0 114 21 21 0 1 0 8 0 pfstscr 40 88 0 88 5 5 0 1 0 8 0 pffrag 232 612 0 610 27 26 1 1 0 482 0 pffrnode 88 612 0 610 27 26 1 1 0 8 0 pffrent 40 8217 0 8215 30 29 1 1 0 8 0 pfosfp 40 1444 0 1018 5 0 5 5 0 8 0 pfosfpen 112 1444 0 726 21 0 21 21 0 8 0 pfrktable 1344 799 0 770 11 8 3 3 0 8 0 pftag 88 6 0 0 1 0 1 1 0 8 0 pfqueue 264 9 0 0 1 0 1 1 0 8 0 pfstitem 24 100 0 95 1 0 1 1 0 8 0 pfstkey 112 224 0 219 1 0 1 1 0 8 0 pfstate 320 177 0 172 3 2 1 3 0 8 0 pfsrctr 152 15 0 15 1 1 0 1 0 8 0 pfrule 1360 1163 0 1027 15 3 12 12 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 9646 0 9537 66 56 10 15 0 8 2 art_table 32 9647 0 9537 2 0 2 2 0 8 0 art_node 16 2073 0 2053 1 0 1 1 0 8 0 sysvmsgpl 40 43 0 3 1 0 1 1 0 8 0 semupl 112 6 0 6 1 1 0 1 0 8 0 semapl 112 8 0 0 1 0 1 1 0 8 0 shmpl 112 131 0 3 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 41596 0 40100 96 2 94 94 0 8 0 ffsino 272 41596 0 40100 100 0 100 100 0 8 0 nchpl 144 80437 0 78838 62 2 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 293005 0 293004 9 8 1 1 0 8 0 percpumem 16 453 0 418 1 0 1 1 0 8 0 vcpupl 2048 180 0 1 23 0 23 23 0 8 0 vmpool 560 275 0 96 15 2 13 13 0 8 0 pfiaddrpl 120 241 0 192 3 1 2 2 0 8 0 scsiplug 72 27 0 27 8 8 0 1 0 8 0 scxspl 216 250042 0 250042 29 28 1 6 0 8 1 plimitpl 152 2633 0 2624 1 0 1 1 0 8 0 sigapl 424 30736 0 30682 7 0 7 7 0 8 0 futexpl 64 315548 0 315548 13 12 1 1 0 8 1 knotepl 112 224 0 0 4 0 4 4 0 8 0 kqueuepl 216 6999 0 6987 182 178 4 12 0 8 3 pipepl 336 8013 0 8003 260 253 7 7 0 8 6 fdescpl 496 30699 0 30681 3 0 3 3 0 8 0 filepl 152 229296 0 229185 437 425 12 16 0 8 7 lockfpl 104 8794 0 8791 17 16 1 4 0 8 0 lockfspl 48 2552 0 2549 1 0 1 1 0 8 0 sessionpl 144 98 0 87 1 0 1 1 0 8 0 pgrppl 48 214 0 203 1 0 1 1 0 8 0 ucredpl 96 25554 0 25539 1 0 1 1 0 8 0 zombiepl 144 30682 0 30682 4 3 1 1 0 8 1 processpl 1064 30736 0 30682 4 0 4 4 0 8 0 procpl 672 78163 0 78100 82 76 6 8 0 8 0 srpgc 96 26 0 26 10 10 0 1 0 8 0 sosppl 168 229 0 229 45 44 1 1 0 8 1 sockpl 480 67499 0 67470 1357 1337 20 34 0 8 16 mcl64k 65536 19 0 0 3 0 3 3 0 8 0 mcl16k 16384 13 0 0 2 0 2 2 0 8 0 mcl12k 12288 17 0 0 2 0 2 2 0 8 0 mcl9k 9216 13 0 0 1 0 1 1 0 8 0 mcl8k 8192 23 0 0 3 1 2 3 0 8 0 mcl4k 4096 15 0 0 2 0 2 2 0 8 0 mcl2k2 2112 6 0 0 1 0 1 1 0 8 0 mcl2k 2048 502 0 0 21 5 16 21 0 8 0 mtagpl 96 2022 0 0 13 0 13 13 0 8 0 mbufpl 256 18115 0 0 1100 0 1100 1100 0 8 0 bufpl 280 58243 0 51914 453 0 453 453 0 8 0 anonpl 24 8671924 0 8651506 678 541 137 161 0 186 0 amapchunkpl 152 935913 0 935168 245 214 31 43 0 158 0 amappl16 200 90162 0 89319 418 367 51 58 0 8 0 amappl15 192 6595 0 6588 1 0 1 1 0 8 0 amappl14 184 4384 0 4384 2 2 0 1 0 8 0 amappl13 176 2922 0 2921 1 0 1 1 0 8 0 amappl12 168 4289 0 4285 1 0 1 1 0 8 0 amappl11 160 2979 0 2961 1 0 1 1 0 8 0 amappl10 152 2540 0 2534 1 0 1 1 0 8 0 amappl9 144 6393 0 6388 1 0 1 1 0 8 0 amappl8 136 5326 0 5209 5 0 5 5 0 8 0 amappl7 128 3834 0 3825 1 0 1 1 0 8 0 amappl6 120 6502 0 6484 1 0 1 1 0 8 0 amappl5 112 26042 0 26016 1 0 1 1 0 8 0 amappl4 104 9548 0 9516 1 0 1 1 0 8 0 amappl3 96 7549 0 7527 1 0 1 1 0 8 0 amappl2 88 36612 0 36526 3 1 2 2 0 8 0 amappl1 80 512216 0 511768 19 9 10 13 0 8 0 amappl 88 373460 0 373154 11 3 8 8 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 64 133 0 3 3 0 3 3 0 8 0 uaddrrnd 24 30974 0 30777 2 0 2 2 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 30974 0 30777 2 0 2 2 0 8 0 vmmpekpl 168 188381 0 188331 3 0 3 3 0 8 0 vmmpepl 168 2772641 0 2770018 1291 1141 150 152 0 357 26 vmsppl 368 30973 0 30777 19 1 18 18 0 8 0 rwobjpl 56 650312 0 648434 121 92 29 31 0 8 0 pdppl 4096 61956 0 61733 307 82 225 226 0 8 2 pvpl 32 14658099 0 14637582 985 796 189 245 0 265 0 pmappl 224 30973 0 30777 16 4 12 12 0 8 0 extentpl 40 58 0 40 1 0 1 1 0 8 0 phpool 112 2457 0 830 47 0 47 47 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(fffffd8079537000,28,18) at nd6_ns_input+0xdd4 nd6_dad_ns_input sys/netinet6/nd6_nbr.c:1342 [inline] nd6_ns_input(fffffd8079537000,28,18) at nd6_ns_input+0xdd4 sys/netinet6/nd6_nbr.c:301 icmp6_input(ffff800021167048,ffff800021167054,3a,18) at icmp6_input+0xabe sys/netinet6/icmp6.c:686 ip_deliver(ffff800021167048,ffff800021167054,3a,18) at ip_deliver+0x322 sys/netinet/ip_input.c:658 ip6_input_if(ffff800021167048,ffff800021167054,29,0,ffff8000006ae000) at ip6_input_if+0x978 ipv6_input(ffff8000006ae000,fffffd807946ae00) at ipv6_input+0x48 sys/netinet6/ip6_input.c:171 if_input_local(ffff8000006ae000,fffffd807946ae00,18) at if_input_local+0x136 sys/net/if.c:778 loinput(ffff8000006ae000,fffffd807946ae00) at loinput+0x4d sys/net/if_loop.c:238 if_input_process(ffff8000006ae000,ffff800021167188) 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