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 *523994 51870 0 0x14000 0x200 0K softnet nd6_dad_duplicated(0) at nd6_dad_duplicated+0x28 sys/netinet6/nd6_nbr.c:1265 nd6_ns_input(fffffd8064d42c00,28,18) at nd6_ns_input+0xdd4 nd6_dad_ns_input sys/netinet6/nd6_nbr.c:1342 [inline] nd6_ns_input(fffffd8064d42c00,28,18) at nd6_ns_input+0xdd4 sys/netinet6/nd6_nbr.c:301 icmp6_input(ffff800021167088,ffff800021167094,3a,18) at icmp6_input+0xabe sys/netinet6/icmp6.c:686 ip_deliver(ffff800021167088,ffff800021167094,3a,18) at ip_deliver+0x322 sys/netinet/ip_input.c:658 ip6_input_if(ffff800021167088,ffff800021167094,29,0,ffff8000006ae000) at ip6_input_if+0x978 ipv6_input(ffff8000006ae000,fffffd8064d42d00) at ipv6_input+0x48 sys/netinet6/ip6_input.c:171 if_input_local(ffff8000006ae000,fffffd8064d42d00,18) at if_input_local+0x136 sys/net/if.c:778 loinput(ffff8000006ae000,fffffd8064d42d00) at loinput+0x4d sys/net/if_loop.c:238 if_input_process(ffff8000006ae000,ffff8000211671c8) 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(fffffd8064d42c00,28,18) at nd6_ns_input+0xdd4 nd6_dad_ns_input sys/netinet6/nd6_nbr.c:1342 [inline] nd6_ns_input(fffffd8064d42c00,28,18) at nd6_ns_input+0xdd4 sys/netinet6/nd6_nbr.c:301 icmp6_input(ffff800021167088,ffff800021167094,3a,18) at icmp6_input+0xabe sys/netinet6/icmp6.c:686 ip_deliver(ffff800021167088,ffff800021167094,3a,18) at ip_deliver+0x322 sys/netinet/ip_input.c:658 ip6_input_if(ffff800021167088,ffff800021167094,29,0,ffff8000006ae000) at ip6_input_if+0x978 ipv6_input(ffff8000006ae000,fffffd8064d42d00) at ipv6_input+0x48 sys/netinet6/ip6_input.c:171 if_input_local(ffff8000006ae000,fffffd8064d42d00,18) at if_input_local+0x136 sys/net/if.c:778 loinput(ffff8000006ae000,fffffd8064d42d00) at loinput+0x4d sys/net/if_loop.c:238 if_input_process(ffff8000006ae000,ffff8000211671c8) 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 0xffff800021166c20 rbx 0 rdx 0 rcx 0x7 rax 0xffff8000211482a0 r8 0xffffffff81aa0c0c nd6_ns_input+0x3bc r9 0x1 r10 0xe08df6f38031c03e r11 0x995d62ba096ce561 r12 0 r13 0x2 r14 0 r15 0xffff800000c95e00 rip 0xffffffff81aa3438 nd6_dad_duplicated+0x28 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800021166ba0 ss 0x10 nd6_dad_duplicated+0x28: movq 0x10(%r14),%r13 ddb{0}> show proc PROC (softnet) pid=523994 stat=onproc flags process=14000 proc=200 pri=32, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff800021148000,0xffff800021148550 process=0xffff8000ffffd8f0 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 30152 161654 87446 0 2 0 syz-executor.1 30152 377201 87446 0 2 0x4000000 syz-executor.1 46652 119094 1 0 3 0x100083 ttyin getty 94233 478685 5919 0 2 0x2 syz-executor.0 87446 439928 5919 0 3 0x82 nanoslp syz-executor.1 93431 89586 0 0 3 0x14200 acct acct 21873 303393 0 0 3 0x14280 nfsidl nfsio 95322 293558 0 0 3 0x14280 nfsidl nfsio 32337 509142 0 0 3 0x14280 nfsidl nfsio 28390 323867 0 0 3 0x14280 nfsidl nfsio 653 482586 0 0 3 0x14280 nfsidl nfsio 32611 102390 0 0 3 0x14280 nfsidl nfsio 99686 244707 0 0 3 0x14280 nfsidl nfsio 87284 243869 0 0 3 0x14280 nfsidl nfsio 70995 11590 0 0 3 0x14280 nfsidl nfsio 40850 187274 0 0 3 0x14280 nfsidl nfsio 94175 506342 0 0 3 0x14280 nfsidl nfsio 39412 19227 0 0 3 0x14280 nfsidl nfsio 35919 409171 0 0 3 0x14280 nfsidl nfsio 50026 45652 0 0 3 0x14280 nfsidl nfsio 65708 69726 0 0 3 0x14280 nfsidl nfsio 80900 241531 0 0 3 0x14280 nfsidl nfsio 55395 343220 0 0 3 0x14280 nfsidl nfsio 67289 382738 0 0 3 0x14280 nfsidl nfsio 45202 431965 0 0 3 0x14280 nfsidl nfsio 18463 460187 0 0 3 0x14280 nfsidl nfsio 6510 221376 0 0 3 0x14200 bored sosplice 5919 47573 65543 0 3 0x82 thrsleep syz-fuzzer 5919 427174 65543 0 3 0x4000082 nanoslp syz-fuzzer 5919 447163 65543 0 3 0x4000082 thrsleep syz-fuzzer 5919 465615 65543 0 3 0x4000082 kqread syz-fuzzer 5919 390485 65543 0 3 0x4000082 thrsleep syz-fuzzer 5919 352246 65543 0 3 0x4000082 thrsleep syz-fuzzer 5919 395387 65543 0 3 0x4000082 thrsleep syz-fuzzer 5919 374660 65543 0 3 0x4000082 nanoslp syz-fuzzer 65543 224007 68868 0 3 0x10008a sigsusp ksh 68868 62781 98876 0 3 0x9a kqread sshd 98876 170276 1 0 3 0x88 kqread sshd 94547 359995 58391 74 3 0x100092 bpf pflogd 58391 28557 1 0 3 0x80 netio pflogd 25050 137038 58494 73 3 0x100090 kqread syslogd 58494 256379 1 0 3 0x100082 netio syslogd 91753 516923 1 0 3 0x100080 kqread resolvd 41265 509252 37237 77 3 0x100092 kqread dhcpleased 48062 357684 37237 77 3 0x100092 kqread dhcpleased 37237 253583 1 0 3 0x80 kqread dhcpleased 36773 52679 0 0 3 0x14200 bored smr 14859 18951 0 0 2 0x14200 zerothread 23772 411074 0 0 3 0x14200 aiodoned aiodoned 76039 343341 0 0 3 0x14200 syncer update 36617 406580 0 0 3 0x14200 cleaner cleaner 85760 487966 0 0 3 0x14200 reaper reaper 29648 51760 0 0 3 0x14200 pgdaemon pagedaemon 89076 511305 0 0 3 0x14200 bored viomb 45231 301466 0 0 3 0x40014200 acpi0 acpi0 80020 67523 0 0 7 0x40014200 idle1 *51870 523994 0 0 7 0x14200 softnet 25638 79284 0 0 2 0x14200 systqmp 61913 106464 0 0 3 0x14200 bored systq 47295 499343 0 0 3 0x40014200 bored softclock 51641 367889 0 0 3 0x40014200 idle0 1 282277 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 94233 (syz-executor.0) thread 0xffff800022a8cfc0 (478685) exclusive rrwlock inode r = 0 (0xfffffd80691e6f80) #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 (0xfffffd806f6f2700) #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 51870 (softnet) thread 0xffff8000211482a0 (523994) 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 10147 6587K 6966K 78643K 21586 0 pcb 14 8K 8K 78643K 954 0 rtable 154 31K 33K 78643K 2877 0 ifaddr 81 23K 24K 78643K 1004 0 sysctl 3 1K 1K 78643K 5 0 counters 44 34K 34K 78643K 336 0 ioctlops 0 0K 4K 78643K 2698 0 iov 0 0K 32K 78643K 596 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 5 0 vnodes 1209 76K 76K 78643K 4913 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 74 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 833 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12598 0 file desc 5 13K 25K 78643K 9328 0 sigio 1 0K 0K 78643K 386 0 proc 71 87K 111K 78643K 1666 0 subproc 26 1K 1K 78643K 470 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 624 0 in_multi 16 1K 2K 78643K 960 0 ether_multi 1 0K 0K 78643K 122 0 mrt 2 0K 0K 78643K 27 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 85 387K 387K 78643K 85 0 exec 0 0K 2K 78643K 1747 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 403 744K 748K 78643K 114383 0 UVM aobj 131 11K 11K 78643K 148 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 969 0 NDP 7 0K 0K 78643K 265 0 temp 109 4244K 4308K 78643K 199519 0 kqueue 14 22K 28K 78643K 614 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 120 748 0 745 1 0 1 1 0 8 0 rtentry 112 782 0 760 2 0 2 2 0 8 0 unpcb 128 3946 0 3931 10 8 2 2 0 8 1 syncache 296 46 0 46 13 13 0 1 0 8 0 tcpqe 32 19 14 19 2 2 0 1 0 8 0 tcpcb 736 2324 0 2306 27 25 2 3 0 8 0 arp 120 134 0 128 1 0 1 1 0 8 0 inpcb 304 6633 0 6618 20 18 2 2 0 8 0 rttmr 72 3 0 3 3 3 0 1 0 8 0 nd6 48 173 0 172 1 0 1 1 0 8 0 pkpcb 40 51 0 51 17 16 1 1 0 8 1 kcovpl 48 36 0 34 1 0 1 1 0 8 0 ppxss 1248 24 0 24 19 19 0 1 0 8 0 pfstscr 40 10 0 10 4 4 0 1 0 8 0 pffrag 232 58 0 57 9 8 1 1 0 482 0 pffrnode 88 58 0 57 9 8 1 1 0 8 0 pffrent 40 592 0 591 11 10 1 1 0 8 0 pfosfp 40 1430 0 1006 5 0 5 5 0 8 0 pfosfpen 112 1430 0 715 21 0 21 21 0 8 0 pfrktable 1344 254 0 214 9 5 4 4 0 8 0 pftag 88 20 0 13 1 0 1 1 0 8 0 pfqueue 264 10 0 2 1 0 1 1 0 8 0 pfstitem 24 38 0 36 1 0 1 1 0 8 0 pfstkey 112 52 0 50 1 0 1 1 0 8 0 pfstate 320 46 0 44 2 1 1 2 0 8 0 pfsrctr 152 6 0 6 1 1 0 1 0 8 0 pfrule 1360 665 0 520 15 2 13 13 0 8 0 art_heap8 4096 9 0 7 6 4 2 3 0 8 0 art_heap4 256 3531 0 3428 36 27 9 15 0 8 2 art_table 32 3540 0 3435 2 0 2 2 0 8 0 art_node 16 777 0 755 1 0 1 1 0 8 0 sysvmsgpl 40 30 0 13 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 831 0 821 1 0 1 1 0 8 0 shmpl 112 145 0 17 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 12766 0 11344 90 0 90 90 0 8 0 ffsino 272 12766 0 11344 95 0 95 95 0 8 0 nchpl 144 24844 0 24426 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 74876 0 74875 15 14 1 1 0 8 0 percpumem 16 180 0 146 1 0 1 1 0 8 0 vcpupl 2048 72 0 0 9 0 9 9 0 8 0 vmpool 560 99 0 27 6 0 6 6 0 8 0 pfiaddrpl 120 121 0 72 2 0 2 2 0 8 0 scsiplug 72 1 0 1 1 1 0 1 0 8 0 scxspl 216 79231 0 79231 30 29 1 8 0 8 1 plimitpl 152 565 0 556 1 0 1 1 0 8 0 sigapl 424 9523 0 9469 15 8 7 7 0 8 0 futexpl 64 125877 0 125877 16 15 1 1 0 8 1 knotepl 112 186 0 0 3 0 3 3 0 8 0 kqueuepl 216 1515 0 1502 2 1 1 2 0 8 0 pipepl 336 8268 0 8258 14 12 2 3 0 8 1 fdescpl 496 9466 0 9448 3 0 3 3 0 8 0 filepl 152 58736 0 58625 39 33 6 6 0 8 1 lockfpl 104 1988 0 1985 1 0 1 1 0 8 0 lockfspl 48 654 0 651 1 0 1 1 0 8 0 sessionpl 144 57 0 46 1 0 1 1 0 8 0 pgrppl 48 82 0 71 1 0 1 1 0 8 0 ucredpl 96 5773 0 5760 1 0 1 1 0 8 0 zombiepl 144 9469 0 9469 5 4 1 1 0 8 1 processpl 1064 9523 0 9469 4 0 4 4 0 8 0 procpl 672 22904 0 22842 8 2 6 6 0 8 0 srpgc 96 12 0 12 6 6 0 1 0 8 0 sosppl 168 82 0 82 23 23 0 1 0 8 0 sockpl 480 11400 0 11367 47 40 7 7 0 8 2 mcl64k 65536 22 0 0 3 1 2 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 7 0 0 1 0 1 1 0 8 0 mcl8k 8192 17 0 0 3 0 3 3 0 8 0 mcl4k 4096 23 0 0 3 0 3 3 0 8 0 mcl2k2 2112 6 0 0 1 0 1 1 0 8 0 mcl2k 2048 283 0 0 22 0 22 22 0 8 0 mtagpl 96 61 0 0 1 0 1 1 0 8 0 mbufpl 256 1087 0 0 30 1 29 29 0 8 0 bufpl 280 23292 0 16963 453 0 453 453 0 8 0 anonpl 24 2695418 0 2676906 342 225 117 137 0 186 0 amapchunkpl 152 283249 0 282559 123 93 30 42 0 158 0 amappl16 200 25094 0 24449 236 201 35 47 0 8 0 amappl15 192 1342 0 1336 1 0 1 1 0 8 0 amappl14 184 2884 0 2882 1 0 1 1 0 8 0 amappl13 176 1262 0 1261 1 0 1 1 0 8 0 amappl12 168 89 0 88 1 0 1 1 0 8 0 amappl11 160 1900 0 1879 1 0 1 1 0 8 0 amappl10 152 1867 0 1863 1 0 1 1 0 8 0 amappl9 144 628 0 623 1 0 1 1 0 8 0 amappl8 136 1907 0 1825 3 0 3 3 0 8 0 amappl7 128 1032 0 1024 1 0 1 1 0 8 0 amappl6 120 565 0 547 1 0 1 1 0 8 0 amappl5 112 8111 0 8081 1 0 1 1 0 8 0 amappl4 104 5624 0 5589 4 3 1 2 0 8 0 amappl3 96 1574 0 1551 1 0 1 1 0 8 0 amappl2 88 10781 0 10725 7 5 2 2 0 8 0 amappl1 80 163078 0 162634 13 3 10 13 0 8 0 amappl 88 113258 0 113032 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 64 147 0 17 3 0 3 3 0 8 0 uaddrrnd 24 9565 0 9475 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 9565 0 9475 1 0 1 1 0 8 0 vmmpekpl 168 84127 0 84085 4 1 3 3 0 8 0 vmmpepl 168 863149 0 860986 592 481 111 127 0 357 8 vmsppl 368 9564 0 9475 12 3 9 9 0 8 0 rwobjpl 56 200727 0 199197 69 46 23 26 0 8 0 pdppl 4096 19138 0 19022 181 63 118 118 0 8 2 pvpl 32 4634267 0 4613729 533 356 177 213 0 265 0 pmappl 224 9564 0 9475 6 0 6 6 0 8 0 extentpl 40 58 0 40 1 0 1 1 0 8 0 phpool 112 569 0 154 13 1 12 12 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(fffffd8064d42c00,28,18) at nd6_ns_input+0xdd4 nd6_dad_ns_input sys/netinet6/nd6_nbr.c:1342 [inline] nd6_ns_input(fffffd8064d42c00,28,18) at nd6_ns_input+0xdd4 sys/netinet6/nd6_nbr.c:301 icmp6_input(ffff800021167088,ffff800021167094,3a,18) at icmp6_input+0xabe sys/netinet6/icmp6.c:686 ip_deliver(ffff800021167088,ffff800021167094,3a,18) at ip_deliver+0x322 sys/netinet/ip_input.c:658 ip6_input_if(ffff800021167088,ffff800021167094,29,0,ffff8000006ae000) at ip6_input_if+0x978 ipv6_input(ffff8000006ae000,fffffd8064d42d00) at ipv6_input+0x48 sys/netinet6/ip6_input.c:171 if_input_local(ffff8000006ae000,fffffd8064d42d00,18) at if_input_local+0x136 sys/net/if.c:778 loinput(ffff8000006ae000,fffffd8064d42d00) at loinput+0x4d sys/net/if_loop.c:238 if_input_process(ffff8000006ae000,ffff8000211671c8) 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