uvm_fault(0xffffffff829033d8, 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 *368741 60157 0 0x14000 0x200 0K softnet nd6_dad_duplicated(0) at nd6_dad_duplicated+0x28 sys/netinet6/nd6_nbr.c:1265 nd6_ns_input(fffffd8068f98900,28,18) at nd6_ns_input+0xdd4 nd6_dad_ns_input sys/netinet6/nd6_nbr.c:1342 [inline] nd6_ns_input(fffffd8068f98900,28,18) at nd6_ns_input+0xdd4 sys/netinet6/nd6_nbr.c:301 icmp6_input(ffff8000211670c8,ffff8000211670d4,3a,18) at icmp6_input+0xabe sys/netinet6/icmp6.c:686 ip_deliver(ffff8000211670c8,ffff8000211670d4,3a,18) at ip_deliver+0x322 sys/netinet/ip_input.c:658 ip6_input_if(ffff8000211670c8,ffff8000211670d4,29,0,ffff8000006ae000) at ip6_input_if+0x978 ipv6_input(ffff8000006ae000,fffffd8076ad5600) at ipv6_input+0x48 sys/netinet6/ip6_input.c:171 if_input_local(ffff8000006ae000,fffffd8076ad5600,18) at if_input_local+0x136 sys/net/if.c:778 loinput(ffff8000006ae000,fffffd8076ad5600) at loinput+0x4d sys/net/if_loop.c:238 if_input_process(ffff8000006ae000,ffff800021167208) 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(0xffffffff829033d8, 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(fffffd8068f98900,28,18) at nd6_ns_input+0xdd4 nd6_dad_ns_input sys/netinet6/nd6_nbr.c:1342 [inline] nd6_ns_input(fffffd8068f98900,28,18) at nd6_ns_input+0xdd4 sys/netinet6/nd6_nbr.c:301 icmp6_input(ffff8000211670c8,ffff8000211670d4,3a,18) at icmp6_input+0xabe sys/netinet6/icmp6.c:686 ip_deliver(ffff8000211670c8,ffff8000211670d4,3a,18) at ip_deliver+0x322 sys/netinet/ip_input.c:658 ip6_input_if(ffff8000211670c8,ffff8000211670d4,29,0,ffff8000006ae000) at ip6_input_if+0x978 ipv6_input(ffff8000006ae000,fffffd8076ad5600) at ipv6_input+0x48 sys/netinet6/ip6_input.c:171 if_input_local(ffff8000006ae000,fffffd8076ad5600,18) at if_input_local+0x136 sys/net/if.c:778 loinput(ffff8000006ae000,fffffd8076ad5600) at loinput+0x4d sys/net/if_loop.c:238 if_input_process(ffff8000006ae000,ffff800021167208) 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 0xffff800021166c60 rbx 0 rdx 0 rcx 0x7 rax 0xffff8000211487e0 r8 0xffffffff810060fc nd6_ns_input+0x3bc r9 0x1 r10 0x717e2c7acaded30d r11 0x7f6b8e7e4d7845b1 r12 0 r13 0x2 r14 0 r15 0xffff800000bf3b00 rip 0xffffffff81008928 nd6_dad_duplicated+0x28 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800021166be0 ss 0x10 nd6_dad_duplicated+0x28: movq 0x10(%r14),%r13 ddb{0}> show proc PROC (softnet) pid=368741 stat=onproc flags process=14000 proc=200 pri=32, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff800021148a80,0xffff800021148550 process=0xffff8000ffffcc78 user=0xffff800021162000, vmspace=0xffffffff829033d8 estcpu=0, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 86958 185945 30471 0 2 0 syz-executor.1 86958 283195 30471 0 2 0x4000000 syz-executor.1 41672 239667 0 0 3 0x14280 nfsidl nfsio 38569 350946 0 0 3 0x14280 nfsidl nfsio 66007 352649 0 0 3 0x14280 nfsidl nfsio 88425 263284 0 0 3 0x14280 nfsidl nfsio 25994 31020 0 0 3 0x14280 nfsidl nfsio 64544 473297 0 0 3 0x14280 nfsidl nfsio 85321 388710 0 0 3 0x14280 nfsidl nfsio 42561 152363 0 0 3 0x14280 nfsidl nfsio 63053 191683 0 0 3 0x14280 nfsidl nfsio 18368 466153 0 0 3 0x14280 nfsidl nfsio 571 359852 0 0 3 0x14280 nfsidl nfsio 41855 122411 0 0 3 0x14280 nfsidl nfsio 47727 41509 0 0 3 0x14280 nfsidl nfsio 37904 8576 0 0 3 0x14280 nfsidl nfsio 54698 326545 0 0 3 0x14280 nfsidl nfsio 76895 260298 0 0 3 0x14280 nfsidl nfsio 10637 118930 0 0 3 0x14280 nfsidl nfsio 95658 134255 0 0 3 0x14280 nfsidl nfsio 16123 54098 0 0 3 0x14280 nfsidl nfsio 40423 204671 0 0 3 0x14280 nfsidl nfsio 30471 49167 39876 0 2 0x482 syz-executor.1 19379 286818 39876 0 2 0x2 syz-executor.0 91790 188099 1 0 3 0x100083 ttyin getty 5198 21708 0 0 3 0x14200 bored sosplice 39876 345495 32810 0 3 0x82 thrsleep syz-fuzzer 39876 417017 32810 0 3 0x4000082 nanoslp syz-fuzzer 39876 421845 32810 0 3 0x4000082 nanoslp syz-fuzzer 39876 340691 32810 0 3 0x4000082 thrsleep syz-fuzzer 39876 162434 32810 0 3 0x4000082 thrsleep syz-fuzzer 39876 21006 32810 0 3 0x4000082 thrsleep syz-fuzzer 39876 56074 32810 0 3 0x4000082 thrsleep syz-fuzzer 39876 130136 32810 0 3 0x4000082 kqread syz-fuzzer 32810 326931 15622 0 3 0x10008a sigsusp ksh 15622 185520 48984 0 3 0x9a kqread sshd 48984 73428 1 0 3 0x88 kqread sshd 30592 95518 57647 74 3 0x100092 bpf pflogd 57647 350231 1 0 3 0x80 netio pflogd 30588 446339 25381 73 3 0x100090 kqread syslogd 25381 23838 1 0 3 0x100082 netio syslogd 94957 36391 1 0 3 0x100080 kqread resolvd 46710 234251 61001 77 3 0x100092 kqread dhcpleased 24622 217639 61001 77 3 0x100092 kqread dhcpleased 61001 516519 1 0 3 0x80 kqread dhcpleased 86072 178456 0 0 3 0x14200 bored smr 38069 493686 0 0 2 0x14200 zerothread 68327 99054 0 0 3 0x14200 aiodoned aiodoned 33178 88246 0 0 3 0x14200 syncer update 74816 78890 0 0 3 0x14200 cleaner cleaner 71848 3219 0 0 3 0x14200 reaper reaper 60338 135333 0 0 3 0x14200 pgdaemon pagedaemon 80295 328182 0 0 3 0x14200 bored viomb 86187 47333 0 0 3 0x40014200 acpi0 acpi0 43355 109319 0 0 7 0x40014200 idle1 *60157 368741 0 0 7 0x14200 softnet 83960 325343 0 0 2 0x14200 systqmp 73948 128395 0 0 3 0x14200 bored systq 56392 433680 0 0 3 0x40014200 bored softclock 3455 430086 0 0 3 0x40014200 idle0 1 510851 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 19379 (syz-executor.0) thread 0xffff8000ffff67f0 (286818) exclusive rrwlock inode r = 0 (0xfffffd806e0c65f8) #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 vget+0x1eb sys/kern/vfs_subr.c:677 #6 ufs_ihashget+0x121 sys/ufs/ufs/ufs_ihash.c:119 #7 ffs_vget+0x7c sys/ufs/ffs/ffs_vfsops.c:1318 #8 ufs_lookup+0x145f sys/ufs/ufs/ufs_lookup.c:487 #9 VOP_LOOKUP+0x58 sys/kern/vfs_vops.c:85 #10 vfs_lookup+0x737 sys/kern/vfs_lookup.c:561 #11 namei+0x55a sys/kern/vfs_lookup.c:245 #12 dounlinkat+0x99 sys/kern/vfs_syscalls.c:1849 #13 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] #13 syscall+0x489 sys/arch/amd64/amd64/trap.c:585 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806873b2c0) #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 dounlinkat+0x99 sys/kern/vfs_syscalls.c:1849 #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 60157 (softnet) thread 0xffff8000211487e0 (368741) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff828be3e0) #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 (0xffffffff827ff110) #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 10132 6451K 6691K 78643K 11977 0 pcb 14 8K 8K 78643K 535 0 rtable 86 18K 22K 78643K 1407 0 ifaddr 58 15K 18K 78643K 534 0 sysctl 3 1K 1K 78643K 3 0 counters 44 34K 34K 78643K 188 0 ioctlops 0 0K 4K 78643K 1956 0 iov 0 0K 24K 78643K 254 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 4 0 vnodes 1252 79K 79K 78643K 2335 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 37 0 VM map 2 1K 1K 78643K 2 0 sem 12 1K 1K 78643K 185 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12598 0 file desc 5 13K 25K 78643K 3951 0 sigio 0 0K 0K 78643K 32 0 proc 71 87K 111K 78643K 1000 0 subproc 66 4K 4K 78643K 594 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 346 0 in_multi 9 0K 2K 78643K 601 0 ether_multi 1 0K 0K 78643K 97 0 mrt 3 0K 0K 78643K 29 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 67 307K 307K 78643K 67 0 exec 0 0K 2K 78643K 1085 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 322 324K 324K 78643K 49407 0 UVM aobj 116 8K 8K 78643K 122 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 1K 78643K 516 0 NDP 7 0K 0K 78643K 141 0 temp 94 4212K 4276K 78643K 93461 0 kqueue 12 18K 26K 78643K 325 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 120 211 0 208 1 0 1 1 0 8 0 rtentry 112 398 0 385 4 2 2 2 0 8 0 unpcb 128 4414 0 4399 6 5 1 2 0 8 0 syncache 296 12 0 12 6 6 0 1 0 8 0 tcpqe 32 3 0 3 3 3 0 1 0 8 0 tcpcb 736 1106 0 1098 21 19 2 4 0 8 1 arp 120 55 0 52 1 0 1 1 0 8 0 inpcb 304 3347 0 3336 17 15 2 2 0 8 1 rttmr 72 7 0 7 3 2 1 1 0 8 1 nd6 48 87 0 87 2 2 0 1 0 8 0 pkpcb 40 16 0 16 4 4 0 1 0 8 0 kcovpl 48 18 0 16 1 0 1 1 0 8 0 ppxss 1248 16 0 16 10 10 0 1 0 8 0 pfstscr 40 3 0 3 2 2 0 1 0 8 0 pffrag 232 41 0 39 5 4 1 1 0 482 0 pffrnode 88 41 0 39 5 4 1 1 0 8 0 pffrent 40 790 0 788 5 4 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 125 0 109 4 2 2 2 0 8 0 pftag 88 7 0 5 1 0 1 1 0 8 0 pfqueue 264 1 0 0 1 0 1 1 0 8 0 pfstitem 24 127 0 125 1 0 1 1 0 8 0 pfstkey 112 133 0 131 2 1 1 2 0 8 0 pfstate 320 130 0 128 5 4 1 5 0 8 0 pfrule 1360 219 0 181 8 4 4 4 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 2065 0 2003 29 20 9 13 0 8 5 art_table 32 2066 0 2003 2 0 2 2 0 8 0 art_node 16 393 0 382 1 0 1 1 0 8 0 sysvmsgpl 40 37 0 14 1 0 1 1 0 8 0 semupl 112 4 0 4 1 1 0 1 0 8 0 semapl 112 175 0 165 1 0 1 1 0 8 0 shmpl 112 119 0 6 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 6457 0 5028 91 1 90 90 0 8 0 ffsino 272 6457 0 5028 97 1 96 96 0 8 0 nchpl 144 12325 0 10723 61 0 61 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 38251 0 38251 5 4 1 1 0 8 1 percpumem 16 106 0 72 1 0 1 1 0 8 0 vcpupl 2048 33 0 0 5 0 5 5 0 8 0 vmpool 560 55 0 22 5 2 3 3 0 8 0 pfiaddrpl 120 42 0 28 4 3 1 1 0 8 0 scsiplug 72 2 0 2 2 2 0 1 0 8 0 scxspl 216 35594 0 35594 15 14 1 8 0 8 1 plimitpl 152 305 0 296 1 0 1 1 0 8 0 sigapl 424 4204 0 4151 10 3 7 7 0 8 1 futexpl 64 58212 0 58212 6 5 1 1 0 8 1 knotepl 112 92 0 0 3 0 3 3 0 8 0 kqueuepl 216 714 0 702 2 1 1 2 0 8 0 pipepl 336 657 0 647 6 4 2 2 0 8 0 fdescpl 496 4147 0 4129 3 0 3 3 0 8 0 filepl 152 25199 0 25049 14 7 7 8 0 8 1 lockfpl 104 1152 0 1150 1 0 1 1 0 8 0 lockfspl 48 352 0 350 1 0 1 1 0 8 0 sessionpl 144 37 0 26 1 0 1 1 0 8 0 pgrppl 48 57 0 46 1 0 1 1 0 8 0 ucredpl 96 2920 0 2908 1 0 1 1 0 8 0 zombiepl 144 4151 0 4151 2 1 1 1 0 8 1 processpl 1064 4204 0 4151 4 0 4 4 0 8 0 procpl 672 9905 0 9844 13 7 6 6 0 8 0 srpgc 96 10 0 10 5 5 0 1 0 8 0 sosppl 168 58 0 58 17 16 1 1 0 8 1 sockpl 480 7998 0 7969 23 18 5 7 0 8 1 mcl64k 65536 10 0 0 2 0 2 2 0 8 0 mcl16k 16384 3 0 0 1 0 1 1 0 8 0 mcl12k 12288 17 0 0 2 0 2 2 0 8 0 mcl9k 9216 4 0 0 1 0 1 1 0 8 0 mcl8k 8192 8 0 0 1 0 1 1 0 8 0 mcl4k 4096 13 0 0 2 0 2 2 0 8 0 mcl2k2 2112 5 0 0 1 0 1 1 0 8 0 mcl2k 2048 196 0 0 22 1 21 22 0 8 0 mtagpl 96 13 0 0 1 0 1 1 0 8 0 mbufpl 256 752 0 0 35 0 35 35 0 8 0 bufpl 280 10906 0 4577 453 0 453 453 0 8 0 anonpl 24 1163042 0 1143533 224 102 122 139 0 186 1 amapchunkpl 152 123410 0 122717 94 65 29 42 0 158 1 amappl16 200 10668 0 9987 108 70 38 49 0 8 1 amappl15 192 485 0 481 1 0 1 1 0 8 0 amappl14 184 4 0 3 3 2 1 1 0 8 0 amappl13 176 708 0 707 1 0 1 1 0 8 0 amappl12 168 639 0 635 1 0 1 1 0 8 0 amappl11 160 800 0 781 1 0 1 1 0 8 0 amappl10 152 1054 0 1050 1 0 1 1 0 8 0 amappl9 144 254 0 250 1 0 1 1 0 8 0 amappl8 136 1159 0 1088 3 0 3 3 0 8 0 amappl7 128 545 0 535 1 0 1 1 0 8 0 amappl6 120 135 0 121 1 0 1 1 0 8 0 amappl5 112 4116 0 4088 1 0 1 1 0 8 0 amappl4 104 2078 0 2050 1 0 1 1 0 8 0 amappl3 96 1599 0 1578 1 0 1 1 0 8 0 amappl2 88 4990 0 4938 3 1 2 2 0 8 0 amappl1 80 72024 0 71582 13 3 10 13 0 8 0 amappl 88 48683 0 48486 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 64 121 0 6 2 0 2 2 0 8 0 uaddrrnd 24 4202 0 4151 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 4202 0 4151 1 0 1 1 0 8 0 vmmpekpl 168 29226 0 29192 2 0 2 2 0 8 0 vmmpepl 168 378692 0 376532 295 193 102 125 0 357 0 vmsppl 368 4201 0 4151 5 0 5 5 0 8 0 rwobjpl 56 88731 0 87209 39 16 23 25 0 8 0 pdppl 4096 8411 0 8335 126 46 80 80 0 8 4 pvpl 32 2073667 0 2052451 354 172 182 207 0 265 6 pmappl 224 4201 0 4151 6 2 4 4 0 8 1 extentpl 40 58 0 40 1 0 1 1 0 8 0 phpool 112 463 0 102 11 0 11 11 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(fffffd8068f98900,28,18) at nd6_ns_input+0xdd4 nd6_dad_ns_input sys/netinet6/nd6_nbr.c:1342 [inline] nd6_ns_input(fffffd8068f98900,28,18) at nd6_ns_input+0xdd4 sys/netinet6/nd6_nbr.c:301 icmp6_input(ffff8000211670c8,ffff8000211670d4,3a,18) at icmp6_input+0xabe sys/netinet6/icmp6.c:686 ip_deliver(ffff8000211670c8,ffff8000211670d4,3a,18) at ip_deliver+0x322 sys/netinet/ip_input.c:658 ip6_input_if(ffff8000211670c8,ffff8000211670d4,29,0,ffff8000006ae000) at ip6_input_if+0x978 ipv6_input(ffff8000006ae000,fffffd8076ad5600) at ipv6_input+0x48 sys/netinet6/ip6_input.c:171 if_input_local(ffff8000006ae000,fffffd8076ad5600,18) at if_input_local+0x136 sys/net/if.c:778 loinput(ffff8000006ae000,fffffd8076ad5600) at loinput+0x4d sys/net/if_loop.c:238 if_input_process(ffff8000006ae000,ffff800021167208) 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