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 *418703 5584 0 0x14000 0x200 0K softnet nd6_dad_duplicated(0) at nd6_dad_duplicated+0x28 sys/netinet6/nd6_nbr.c:1265 nd6_ns_input(fffffd807f019800,28,18) at nd6_ns_input+0xdd4 nd6_dad_ns_input sys/netinet6/nd6_nbr.c:1342 [inline] nd6_ns_input(fffffd807f019800,28,18) at nd6_ns_input+0xdd4 sys/netinet6/nd6_nbr.c:301 icmp6_input(ffff800021167198,ffff8000211671a4,3a,18) at icmp6_input+0xabe sys/netinet6/icmp6.c:686 ip_deliver(ffff800021167198,ffff8000211671a4,3a,18) at ip_deliver+0x322 sys/netinet/ip_input.c:658 ip6_input_if(ffff800021167198,ffff8000211671a4,29,0,ffff8000006ae000) at ip6_input_if+0x978 ipv6_input(ffff8000006ae000,fffffd806eef5800) at ipv6_input+0x48 sys/netinet6/ip6_input.c:171 if_input_local(ffff8000006ae000,fffffd806eef5800,18) at if_input_local+0x136 sys/net/if.c:778 loinput(ffff8000006ae000,fffffd806eef5800) at loinput+0x4d sys/net/if_loop.c:238 if_input_process(ffff8000006ae000,ffff8000211672d8) 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(fffffd807f019800,28,18) at nd6_ns_input+0xdd4 nd6_dad_ns_input sys/netinet6/nd6_nbr.c:1342 [inline] nd6_ns_input(fffffd807f019800,28,18) at nd6_ns_input+0xdd4 sys/netinet6/nd6_nbr.c:301 icmp6_input(ffff800021167198,ffff8000211671a4,3a,18) at icmp6_input+0xabe sys/netinet6/icmp6.c:686 ip_deliver(ffff800021167198,ffff8000211671a4,3a,18) at ip_deliver+0x322 sys/netinet/ip_input.c:658 ip6_input_if(ffff800021167198,ffff8000211671a4,29,0,ffff8000006ae000) at ip6_input_if+0x978 ipv6_input(ffff8000006ae000,fffffd806eef5800) at ipv6_input+0x48 sys/netinet6/ip6_input.c:171 if_input_local(ffff8000006ae000,fffffd806eef5800,18) at if_input_local+0x136 sys/net/if.c:778 loinput(ffff8000006ae000,fffffd806eef5800) at loinput+0x4d sys/net/if_loop.c:238 if_input_process(ffff8000006ae000,ffff8000211672d8) 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 0xffff800021166d30 rbx 0 rdx 0 rcx 0x7 rax 0xffff800021148d20 r8 0xffffffff810060fc nd6_ns_input+0x3bc r9 0x1 r10 0x2c1e951b4e3818c5 r11 0x59c1be6b1f8947c0 r12 0 r13 0x2 r14 0 r15 0xffff800000ba7600 rip 0xffffffff81008928 nd6_dad_duplicated+0x28 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800021166cb0 ss 0x10 nd6_dad_duplicated+0x28: movq 0x10(%r14),%r13 ddb{0}> show proc PROC (softnet) pid=418703 stat=onproc flags process=14000 proc=200 pri=32, usrpri=51, nice=20 forw=0xffffffffffffffff, list=0xffff800021149260,0xffff800021148010 process=0xffff8000ffffc000 user=0xffff800021162000, vmspace=0xffffffff829033d8 estcpu=1, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 48577 351112 77578 0 2 0 syz-executor.1 48577 428826 77578 0 2 0x4000000 syz-executor.1 53964 59031 1 0 3 0x82 nanoslp getty 61501 461085 81907 0 2 0x2 syz-executor.0 77578 326520 81907 0 3 0x82 nanoslp syz-executor.1 83462 469232 0 0 3 0x14200 acct acct 37901 12170 0 0 3 0x14280 nfsidl nfsio 63564 415154 0 0 3 0x14280 nfsidl nfsio 15593 114505 0 0 3 0x14280 nfsidl nfsio 23999 38130 0 0 3 0x14280 nfsidl nfsio 83317 315826 0 0 3 0x14280 nfsidl nfsio 53183 302969 0 0 3 0x14280 nfsidl nfsio 97149 506437 0 0 3 0x14280 nfsidl nfsio 16400 84487 0 0 3 0x14280 nfsidl nfsio 75437 127347 0 0 3 0x14280 nfsidl nfsio 39492 504865 0 0 3 0x14280 nfsidl nfsio 82835 243604 0 0 3 0x14280 nfsidl nfsio 34603 116139 0 0 3 0x14280 nfsidl nfsio 47429 475193 0 0 3 0x14280 nfsidl nfsio 30634 383119 0 0 3 0x14280 nfsidl nfsio 54907 413203 0 0 3 0x14280 nfsidl nfsio 40207 102193 0 0 3 0x14280 nfsidl nfsio 41452 30348 0 0 3 0x14280 nfsidl nfsio 44973 43191 0 0 3 0x14280 nfsidl nfsio 94020 195172 0 0 3 0x14280 nfsidl nfsio 59949 387349 0 0 3 0x14280 nfsidl nfsio 91471 482351 0 0 3 0x14200 bored sosplice 81907 40567 7881 0 3 0x82 thrsleep syz-fuzzer 81907 487124 7881 0 3 0x4000082 nanoslp syz-fuzzer 81907 43538 7881 0 3 0x4000082 thrsleep syz-fuzzer 81907 443864 7881 0 3 0x4000082 thrsleep syz-fuzzer 81907 131074 7881 0 3 0x4000082 thrsleep syz-fuzzer 81907 87911 7881 0 3 0x4000082 thrsleep syz-fuzzer 81907 326879 7881 0 3 0x4000082 nanoslp syz-fuzzer 81907 274098 7881 0 3 0x4000082 kqread syz-fuzzer 7881 462288 58957 0 3 0x10008a sigsusp ksh 58957 13594 72342 0 3 0x9a kqread sshd 72342 161628 1 0 3 0x88 kqread sshd 68013 108340 85643 74 3 0x100092 bpf pflogd 85643 474929 1 0 3 0x80 netio pflogd 38281 361482 44675 73 3 0x100090 kqread syslogd 44675 328932 1 0 3 0x100082 netio syslogd 73222 226156 1 0 3 0x100080 kqread resolvd 84989 108083 0 0 3 0x14200 bored smr 49135 523873 0 0 2 0x14200 zerothread 90625 342415 0 0 3 0x14200 aiodoned aiodoned 74816 436378 0 0 3 0x14200 syncer update 92471 142486 0 0 3 0x14200 cleaner cleaner 38683 346597 0 0 3 0x14200 reaper reaper 6240 222692 0 0 3 0x14200 pgdaemon pagedaemon 80201 439420 0 0 3 0x14200 bored viomb 45727 405692 0 0 3 0x40014200 acpi0 acpi0 61174 9702 0 0 7 0x40014200 idle1 * 5584 418703 0 0 7 0x14200 softnet 36476 443746 0 0 2 0x14200 systqmp 63504 152038 0 0 3 0x14200 bored systq 30781 267230 0 0 2 0x40014200 softclock 81789 240395 0 0 3 0x40014200 idle0 1 401892 0 0 3 0x80082 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 61501 (syz-executor.0) thread 0xffff8000234807e0 (461085) exclusive rrwlock inode r = 0 (0xfffffd805f1f52c8) #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 (0xfffffd806e186d58) #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 5584 (softnet) thread 0xffff800021148d20 (418703) 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 10137 6461K 6969K 78643K 18467 0 pcb 14 8K 8K 78643K 1273 0 rtable 167 29K 30K 78643K 3658 0 ifaddr 84 23K 24K 78643K 1325 0 sysctl 2 0K 1K 78643K 4 0 counters 44 34K 34K 78643K 430 0 ioctlops 0 0K 4K 78643K 3101 0 iov 0 0K 24K 78643K 791 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 5 0 vnodes 1251 79K 79K 78643K 5787 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 121 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 1592 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12598 0 file desc 5 13K 25K 78643K 12202 0 sigio 0 0K 0K 78643K 105 0 proc 68 63K 111K 78643K 1899 0 subproc 66 4K 4K 78643K 1329 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 860 0 in_multi 26 1K 2K 78643K 1384 0 ether_multi 1 0K 0K 78643K 196 0 mrt 2 0K 0K 78643K 67 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 97 440K 440K 78643K 97 0 exec 0 0K 2K 78643K 2066 0 pfkey data 0 0K 1K 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 478 946K 947K 78643K 146496 0 UVM aobj 76 3K 3K 78643K 80 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 1402 0 NDP 7 0K 0K 78643K 354 0 temp 99 4224K 8320K 78643K 214845 0 kqueue 9 16K 39K 78643K 1964 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 1745 0 1744 1 0 1 1 0 8 0 rtentry 112 995 0 964 2 0 2 2 0 8 0 unpcb 128 19882 0 19874 37 35 2 2 0 8 1 syncache 296 39 0 39 19 19 0 1 0 8 0 tcpqe 32 86 11 86 2 2 0 1 0 8 0 tcpcb 736 3202 0 3193 42 40 2 3 0 8 0 arp 120 130 0 124 1 0 1 1 0 8 0 inpcb 304 10702 0 10693 32 30 2 3 0 8 1 rttmr 72 21 0 21 11 11 0 1 0 8 0 nd6 48 232 0 227 3 2 1 1 0 8 0 pkpcb 40 55 0 55 18 18 0 1 0 8 0 kcovpl 48 40 0 38 1 0 1 1 0 8 0 ppxss 1248 48 0 48 30 30 0 1 0 8 0 pfstscr 40 8 0 8 4 4 0 1 0 8 0 pffrag 232 110 0 110 11 11 0 1 0 482 0 pffrnode 88 110 0 110 11 11 0 1 0 8 0 pffrent 40 1760 0 1760 10 10 0 1 0 8 0 pfosfp 40 1434 0 1008 5 0 5 5 0 8 0 pfosfpen 112 1434 0 715 21 0 21 21 0 8 0 pfrktable 1344 463 0 429 13 10 3 3 0 8 0 pfpktdelay 88 206 0 206 7 7 0 5 0 8 0 pftag 88 40 0 32 3 2 1 1 0 8 0 pfqueue 264 12 0 8 5 4 1 1 0 8 0 pfstitem 24 25 0 23 1 0 1 1 0 8 0 pfstkey 112 45 0 43 1 0 1 1 0 8 0 pfstate 320 37 0 35 2 1 1 2 0 8 0 pfsrctr 152 19 0 19 1 1 0 1 0 8 0 pfrule 1360 810 0 647 16 2 14 14 0 8 0 art_heap8 4096 9 0 8 9 8 1 3 0 8 0 art_heap4 256 5230 0 5075 61 50 11 17 0 8 0 art_table 32 5239 0 5083 3 1 2 3 0 8 0 art_node 16 989 0 960 1 0 1 1 0 8 0 sysvmsgpl 40 30 0 12 1 0 1 1 0 8 0 semupl 112 2 0 2 1 1 0 1 0 8 0 semapl 112 1590 0 1580 1 0 1 1 0 8 0 shmpl 112 77 0 4 3 0 3 3 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 16486 0 15037 92 1 91 91 0 8 0 ffsino 272 16486 0 15037 99 1 98 98 0 8 0 nchpl 144 32824 0 32370 61 43 18 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 104765 0 104764 19 18 1 1 0 8 0 percpumem 16 227 0 193 1 0 1 1 0 8 0 vcpupl 2048 94 0 1 12 0 12 12 0 8 0 vmpool 560 134 0 41 8 1 7 7 0 8 0 pfiaddrpl 120 148 0 91 6 4 2 2 0 8 0 scsiplug 72 8 0 8 6 6 0 1 0 8 0 scxspl 216 109751 0 109751 43 42 1 8 0 8 1 plimitpl 152 848 0 840 1 0 1 1 0 8 0 sigapl 424 12387 0 12336 10 4 6 7 0 8 0 futexpl 64 191138 0 191138 21 20 1 1 0 8 1 knotepl 112 234 0 0 3 0 3 3 0 8 0 kqueuepl 216 4038 0 4025 32 31 1 2 0 8 0 pipepl 336 1697 0 1687 19 17 2 2 0 8 0 fdescpl 496 12326 0 12311 3 0 3 3 0 8 0 filepl 152 83172 0 83041 38 31 7 8 0 8 1 lockfpl 104 2385 0 2384 1 0 1 1 0 8 0 lockfspl 48 767 0 766 1 0 1 1 0 8 0 sessionpl 144 58 0 49 1 0 1 1 0 8 0 pgrppl 48 112 0 103 1 0 1 1 0 8 0 ucredpl 96 9492 0 9483 1 0 1 1 0 8 0 zombiepl 144 12336 0 12336 6 5 1 1 0 8 1 processpl 1064 12387 0 12336 4 0 4 4 0 8 0 procpl 672 28053 0 27994 7 1 6 6 0 8 0 srpgc 96 24 0 24 12 12 0 1 0 8 0 sosppl 168 164 0 164 39 39 0 1 0 8 0 sockpl 480 32428 0 32410 93 88 5 8 0 8 2 mcl64k 65536 15 0 0 2 0 2 2 0 8 0 mcl16k 16384 5 0 0 1 0 1 1 0 8 0 mcl12k 12288 17 0 0 2 0 2 2 0 8 0 mcl9k 9216 6 0 0 1 0 1 1 0 8 0 mcl8k 8192 17 0 0 3 0 3 3 0 8 0 mcl4k 4096 20 0 0 3 1 2 3 0 8 0 mcl2k2 2112 4 0 0 1 0 1 1 0 8 0 mcl2k 2048 351 0 0 40 7 33 40 0 8 0 mtagpl 96 84 0 0 2 0 2 2 0 8 0 mbufpl 256 1296 0 0 51 2 49 51 0 8 0 bufpl 280 25675 0 19349 453 0 453 453 0 8 0 anonpl 24 3346662 0 3328830 301 185 116 135 0 186 2 amapchunkpl 152 363602 0 362953 296 267 29 41 0 158 2 amappl16 200 29198 0 28554 191 156 35 47 0 8 1 amappl15 192 2703 0 2698 1 0 1 1 0 8 0 amappl14 184 2021 0 2020 1 0 1 1 0 8 0 amappl13 176 1957 0 1956 1 0 1 1 0 8 0 amappl12 168 2837 0 2834 1 0 1 1 0 8 0 amappl11 160 980 0 968 1 0 1 1 0 8 0 amappl10 152 1267 0 1259 1 0 1 1 0 8 0 amappl9 144 980 0 975 1 0 1 1 0 8 0 amappl8 136 2152 0 2030 5 0 5 5 0 8 0 amappl7 128 1058 0 1051 1 0 1 1 0 8 0 amappl6 120 938 0 920 1 0 1 1 0 8 0 amappl5 112 9539 0 9516 1 0 1 1 0 8 0 amappl4 104 4032 0 4006 1 0 1 1 0 8 0 amappl3 96 4292 0 4273 1 0 1 1 0 8 0 amappl2 88 16073 0 16020 11 9 2 2 0 8 0 amappl1 80 202620 0 202219 15 5 10 13 0 8 0 amappl 88 145127 0 144900 7 1 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 79 0 4 2 0 2 2 0 8 0 uaddrrnd 24 12460 0 12352 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 12460 0 12352 1 0 1 1 0 8 0 vmmpekpl 168 70131 0 70086 3 0 3 3 0 8 0 vmmpepl 168 1100583 0 1098506 733 633 100 127 0 357 0 vmsppl 368 12459 0 12352 11 1 10 10 0 8 0 rwobjpl 56 245625 0 244122 55 33 22 25 0 8 0 pdppl 4096 24927 0 24797 225 93 132 133 0 8 2 pvpl 32 5999705 0 5979059 552 371 181 241 0 265 3 pmappl 224 12459 0 12352 10 3 7 7 0 8 0 extentpl 40 58 0 40 1 0 1 1 0 8 0 phpool 112 711 0 243 15 1 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(fffffd807f019800,28,18) at nd6_ns_input+0xdd4 nd6_dad_ns_input sys/netinet6/nd6_nbr.c:1342 [inline] nd6_ns_input(fffffd807f019800,28,18) at nd6_ns_input+0xdd4 sys/netinet6/nd6_nbr.c:301 icmp6_input(ffff800021167198,ffff8000211671a4,3a,18) at icmp6_input+0xabe sys/netinet6/icmp6.c:686 ip_deliver(ffff800021167198,ffff8000211671a4,3a,18) at ip_deliver+0x322 sys/netinet/ip_input.c:658 ip6_input_if(ffff800021167198,ffff8000211671a4,29,0,ffff8000006ae000) at ip6_input_if+0x978 ipv6_input(ffff8000006ae000,fffffd806eef5800) at ipv6_input+0x48 sys/netinet6/ip6_input.c:171 if_input_local(ffff8000006ae000,fffffd806eef5800,18) at if_input_local+0x136 sys/net/if.c:778 loinput(ffff8000006ae000,fffffd806eef5800) at loinput+0x4d sys/net/if_loop.c:238 if_input_process(ffff8000006ae000,ffff8000211672d8) 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