panic: maddr rwlock 0xffff800001588860: enter read deadlock Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *365215 33368 0 0 0x4000000 0 syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff83325ab2) at panic+0x1cf sys/kern/subr_prf.c:198 rw_do_enter_read(ffff800001588860,0) at rw_do_enter_read+0x435 sys/kern/kern_rwlock.c:379 in6_hasmulti(fffffd806b6522f0,ffff800001588800) at in6_hasmulti+0x41 in6_lookupmulti sys/netinet6/in6.c:-1 [inline] in6_hasmulti(fffffd806b6522f0,ffff800001588800) at in6_hasmulti+0x41 sys/netinet6/in6.c:1150 ip6_output(fffffd806b652200,ffffffff839adbf8,0,0,ffff80003c9f2fe0,0) at ip6_output+0x1369 sys/netinet6/ip6_output.c:507 mld6_sendpkt(ffff800001596680,84,ffff80003c9f3078) at mld6_sendpkt+0x364 sys/netinet6/mld6.c:499 mld6_stop_listening(ffff800001596680,ffff800001588800) at mld6_stop_listening+0x125 sys/netinet6/mld6.c:168 in6_delmulti(ffff800001596680) at in6_delmulti+0xb1 sys/netinet6/in6.c:1118 in6_purgeaddr(ffff800001599c00) at in6_purgeaddr+0x1d5 in6_leavegroup sys/netinet6/in6.c:1181 [inline] in6_purgeaddr(ffff800001599c00) at in6_purgeaddr+0x1d5 sys/netinet6/in6.c:916 ifnewlladdr(ffff800001588800) at ifnewlladdr+0x1f3 sys/net/if.c:3640 ifioctl(ffff8000015b1390,8020691f,ffff80003c9f33b0,ffff80003c9522c8) at ifioctl+0x2ccc sys/net/if.c:2456 sys_ioctl(ffff80003c9522c8,ffff80003c9f3580,ffff80003c9f34d0) at sys_ioctl+0x660 sys/kern/sys_generic.c:-1 syscall(ffff80003c9f3580) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c9f3580) at syscall+0x962 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x40457fb99a0, count: 1 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> ddb> set $lines = 0 ddb> set $maxwidth = 0 ddb> show panic *cpu0: maddr rwlock 0xffff800001588860: enter read deadlock ddb> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff83325ab2) at panic+0x1cf sys/kern/subr_prf.c:198 rw_do_enter_read(ffff800001588860,0) at rw_do_enter_read+0x435 sys/kern/kern_rwlock.c:379 in6_hasmulti(fffffd806b6522f0,ffff800001588800) at in6_hasmulti+0x41 in6_lookupmulti sys/netinet6/in6.c:-1 [inline] in6_hasmulti(fffffd806b6522f0,ffff800001588800) at in6_hasmulti+0x41 sys/netinet6/in6.c:1150 ip6_output(fffffd806b652200,ffffffff839adbf8,0,0,ffff80003c9f2fe0,0) at ip6_output+0x1369 sys/netinet6/ip6_output.c:507 mld6_sendpkt(ffff800001596680,84,ffff80003c9f3078) at mld6_sendpkt+0x364 sys/netinet6/mld6.c:499 mld6_stop_listening(ffff800001596680,ffff800001588800) at mld6_stop_listening+0x125 sys/netinet6/mld6.c:168 in6_delmulti(ffff800001596680) at in6_delmulti+0xb1 sys/netinet6/in6.c:1118 in6_purgeaddr(ffff800001599c00) at in6_purgeaddr+0x1d5 in6_leavegroup sys/netinet6/in6.c:1181 [inline] in6_purgeaddr(ffff800001599c00) at in6_purgeaddr+0x1d5 sys/netinet6/in6.c:916 ifnewlladdr(ffff800001588800) at ifnewlladdr+0x1f3 sys/net/if.c:3640 ifioctl(ffff8000015b1390,8020691f,ffff80003c9f33b0,ffff80003c9522c8) at ifioctl+0x2ccc sys/net/if.c:2456 sys_ioctl(ffff80003c9522c8,ffff80003c9f3580,ffff80003c9f34d0) at sys_ioctl+0x660 sys/kern/sys_generic.c:-1 syscall(ffff80003c9f3580) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c9f3580) at syscall+0x962 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x40457fb99a0, count: -14 ddb> show registers rdi 0 rsi 0x1 rbp 0xffff80003c9f2cf0 rbx 0xffff800001588800 rdx 0xffff80000157a880 rcx 0 rax 0xffff80003c9522c8 r8 0x101010101010101 r9 0x8080808080808080 r10 0x843676b57568d893 r11 0x437be255b3bd51c8 r12 0 r13 0xffff80003c9522cc r14 0 r15 0x1 rip 0xffffffff82215455 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80003c9f2ce0 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb> show proc PROC (syz-executor) tid=365215 pid=33368 tcnt=2 stat=onproc flags process=0 proc=4000000 runpri=32, usrpri=81, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80003c953788,0xffff80003a52fa20 process=0xffff8000ffff9218 user=0xffff80003c9ee000, vmspace=0xfffffd800a5a4748 estcpu=31, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 37009 71140 32362 0 2 0 syz-executor 37009 295692 32362 0 3 0x4000080 kqpoll syz-executor 2857 89462 99273 0 2 0 syz-executor 2857 268338 99273 0 3 0x4000080 fsleep syz-executor 37219 145307 72433 0 2 0 syz-executor 37219 23699 72433 0 3 0x4000080 fsleep syz-executor 75326 310392 98140 60929 3 0x90 nanoslp syz-executor 75326 306138 98140 60929 3 0x4000090 ttyout syz-executor 75326 226403 98140 60929 3 0x4000090 fsleep syz-executor 33368 131686 10526 0 2 0 syz-executor *33368 365215 10526 0 7 0x4000000 syz-executor 50938 134584 10583 0 2 0xc80 syz-executor 50938 351297 10583 0 3 0x4000080 kqread syz-executor 50938 358918 10583 0 3 0x4000080 fsleep syz-executor 69510 187400 1 0 3 0x100083 ttyin getty 32362 152524 23908 0 3 0x82 nanoslp syz-executor 45080 270670 0 0 3 0x14200 acct acct 19827 109313 23908 0 2 0x2 syz-executor 55015 284082 0 0 3 0x14280 nfsidl nfsio 54259 160734 0 0 3 0x14280 nfsidl nfsio 86635 431709 0 0 3 0x14280 nfsidl nfsio 69394 442975 0 0 3 0x14280 nfsidl nfsio 4027 180658 0 0 3 0x14280 nfsidl nfsio 80492 208093 0 0 3 0x14280 nfsidl nfsio 69858 125540 0 0 3 0x14280 nfsidl nfsio 80152 326522 0 0 3 0x14280 nfsidl nfsio 46815 55477 0 0 3 0x14280 nfsidl nfsio 63026 176690 0 0 3 0x14280 nfsidl nfsio 88393 502719 0 0 3 0x14280 nfsidl nfsio 26685 366182 0 0 3 0x14280 nfsidl nfsio 67333 381255 0 0 3 0x14280 nfsidl nfsio 68852 382834 0 0 3 0x14280 nfsidl nfsio 54697 295372 0 0 3 0x14280 nfsidl nfsio 92220 253652 0 0 3 0x14280 nfsidl nfsio 64562 407653 0 0 3 0x14280 nfsidl nfsio 87480 117094 0 0 3 0x14280 nfsidl nfsio 32370 255353 0 0 3 0x14280 nfsidl nfsio 80656 96140 0 0 3 0x14280 nfsidl nfsio 9962 389944 23908 0 2 0x2 syz-executor 10526 60158 23908 0 2 0xc82 syz-executor 99273 113939 23908 0 2 0xc82 syz-executor 72433 239421 23908 0 2 0xc82 syz-executor 98140 67064 23908 0 2 0xc82 syz-executor 10583 378398 23908 0 2 0xc82 syz-executor 23908 323869 19263 0 3 0x82 kqread syz-executor 19263 458271 19849 0 3 0x10008a sigsusp ksh 19849 216994 2057 0 3 0x98 kqread sshd-session 2057 415484 88341 0 3 0x92 kqread sshd-session 88341 261905 1 0 3 0x88 kqread sshd 13784 15332 7997 73 3 0x1100090 kqread syslogd 7997 296881 1 0 3 0x100082 sbwait syslogd 38909 110033 1 0 3 0x100080 kqread resolvd 20397 464274 47514 77 3 0x100092 kqread dhcpleased 22637 135882 47514 77 3 0x100092 kqread dhcpleased 47514 333206 1 0 3 0x80 kqread dhcpleased 45219 397926 0 0 3 0x14200 bored smr 2944 266791 0 0 2 0x14200 zerothread 14040 7174 0 0 3 0x14200 aiodoned aiodoned 87681 510314 0 0 3 0x14200 syncer update 30357 433925 0 0 3 0x14200 cleaner cleaner 78507 220844 0 0 3 0x14200 reaper reaper 52965 470690 0 0 3 0x14200 pgdaemon pagedaemon 39903 30659 0 0 3 0x14200 bored viomb 41518 84359 0 0 3 0x40014200 acpi0 acpi0 87050 458942 0 0 3 0x14200 bored softnet0 44796 365274 0 0 2 0x14200 systqmp 57606 375331 0 0 3 0x14200 bored systq 22543 451903 0 0 2 0x40014200 softclock 90935 402958 0 0 3 0x40014200 idle0 1 353509 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb> show all locks No such command ddb> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 11052 12280K 12645K 166960K 13104 0 pcb 19 16K 18K 166960K 221 0 rtable 215 10K 10K 166960K 496 0 pf 32 13K 16K 166960K 108 0 ifaddr 38 6K 7K 166960K 73 0 ifgroup 46 2K 2K 166960K 97 0 sysctl 1 1K 9K 166960K 8 0 counters 32 17K 18K 166960K 94 0 ioctlops 0 0K 4K 166960K 313 0 iov 0 0K 24K 166960K 28 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1376 87K 87K 166960K 1958 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 8 0 VM map 2 1K 1K 166960K 2 0 sem 17 5K 7K 166960K 30 0 dirhash 12 2K 2K 166960K 36 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 16 57K 85K 166960K 633 0 sigio 0 0K 0K 166960K 10 0 proc 60 59K 108K 166960K 570 0 subproc 72 4K 4K 166960K 90 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 71 0 in_multi 88 6K 7K 166960K 151 0 ether_multi 2 0K 0K 166960K 6 0 mrt 1 0K 0K 166960K 2 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 91 413K 413K 166960K 91 0 exec 0 0K 1K 166960K 595 0 fusefs mount 1 32K 32K 166960K 1 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 213 150K 167K 166960K 7395 0 UVM aobj 84 10K 10K 166960K 97 0 pinsyscall 37 74K 91K 166960K 1782 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 31 0 NDP 10 0K 2K 166960K 49 0 temp 54 8666K 8922K 166960K 21502 0 kqueue 19 25K 28K 166960K 122 0 SYN cache 2 8K 16K 166960K 3 0 ddb> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle rtpcb 120 75 0 71 1 0 1 1 0 8 0 rtentry 136 144 0 58 4 0 4 4 0 8 0 unpcb 144 485 0 467 4 0 4 4 0 8 3 syncache 336 8 0 8 1 0 1 1 0 8 1 tcpqe 32 1 0 1 1 0 1 1 0 8 1 tcpcb 736 333 0 327 10 0 10 10 0 8 9 arp 96 24 0 9 1 0 1 1 0 8 0 ipq 40 1 0 0 1 0 1 1 0 8 0 ipqe 40 1 0 0 1 0 1 1 0 8 0 inpcb 328 780 0 766 10 0 10 10 0 8 8 ip6q 72 7 0 4 1 0 1 1 0 8 0 ip6af 40 11 0 8 1 0 1 1 0 8 0 nd6 112 33 0 12 1 0 1 1 0 8 0 pkpcb 40 1 0 1 1 0 1 1 0 8 1 kcovpl 48 10 0 2 1 0 1 1 0 8 0 ppxss 1072 56 0 56 1 0 1 1 0 8 1 pppxif 1416 1 0 1 1 0 1 1 0 8 1 pfrktable 1344 3 0 1 1 0 1 1 0 8 0 pfanchor 1288 5 0 0 1 0 1 1 0 8 0 pftag 88 2 0 0 1 0 1 1 0 8 0 pfstitem 24 2 0 0 1 0 1 1 0 8 0 pfstkey 128 3 0 1 1 0 1 1 0 8 0 pfstate 384 2 0 1 1 0 1 1 0 8 0 pfrule 1344 15 0 6 1 0 1 1 0 8 0 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 624 0 218 31 0 31 31 0 8 5 art_table 40 626 0 218 5 0 5 5 0 8 0 art_node 32 143 0 65 1 0 1 1 0 8 0 sysvmsgpl 40 2 0 2 1 0 1 1 0 8 1 semapl 112 20 0 5 1 0 1 1 0 8 0 shmpl 112 90 0 12 3 0 3 3 0 8 0 dirhash 1024 33 0 16 3 0 3 3 0 8 0 dino2pl 256 2632 0 1131 95 0 95 95 0 8 0 ffsino 256 2632 0 1131 95 0 95 95 0 8 0 nchpl 144 3480 0 1786 64 0 64 64 0 8 0 rtmask 32 4 0 4 1 0 1 1 0 8 1 vnodes 216 3011 0 0 168 0 168 168 0 8 0 namei 1024 12263 0 12263 2 0 2 2 0 8 2 vcpupl 3904 3 0 0 1 0 1 1 0 8 0 vmpool 808 4 0 1 1 0 1 1 0 8 0 pfiaddrpl 120 1 0 0 1 0 1 1 0 8 0 kstatmem 264 56 0 36 2 0 2 2 0 8 0 scsiplug 72 10 0 10 1 0 1 1 0 8 1 scxspl 216 11368 0 11368 8 0 8 8 1 8 8 plimitpl 152 300 0 283 1 0 1 1 0 8 0 sigapl 424 943 0 881 8 0 8 8 0 8 0 knotepl 120 20246 0 20187 16 5 11 16 0 8 8 kqueuepl 184 374 0 360 7 0 7 7 0 8 6 pipepl 304 255 0 228 5 0 5 5 0 8 2 fdescpl 448 909 0 881 4 0 4 4 0 8 0 filepl 120 5986 0 5762 16 1 15 16 0 8 6 lockfpl 104 305 0 303 2 0 2 2 0 8 1 lockfspl 48 74 0 72 1 0 1 1 0 8 0 sessionpl 144 27 0 19 1 0 1 1 0 8 0 pgrppl 48 44 0 28 1 0 1 1 0 8 0 ucredpl 104 909 0 896 1 0 1 1 0 8 0 zombiepl 144 881 0 881 1 0 1 1 0 8 1 processpl 1152 943 0 881 5 0 5 5 0 8 0 procpl 664 1666 0 1596 7 0 7 7 0 8 0 sosppl 176 6 0 6 1 0 1 1 0 8 1 sockpl 552 1356 0 1320 10 0 10 10 0 8 5 mcl64k 65536 15 0 14 1 0 1 1 0 8 0 mcl16k 16384 1 0 1 1 0 1 1 0 8 1 mcl12k 12288 1 0 1 1 0 1 1 0 8 1 mcl8k 8192 19 0 18 1 0 1 1 0 8 0 mcl4k 4096 3112 0 3061 15 0 15 15 0 8 8 mcl2k 2048 967 0 960 3 0 3 3 0 8 1 mtagpl 96 19 0 4 1 0 1 1 0 8 0 mbufpl 256 9881 0 9685 17 0 17 17 0 8 4 bufpl 280 3602 0 121 249 0 249 249 0 8 0 anonpl 24 142309 0 139231 56 0 56 56 0 187 28 amapchunkpl 152 24037 0 23615 35 0 35 35 0 158 15 amappl16 200 2621 0 2588 23 11 12 16 0 8 8 amappl15 192 2 0 2 1 0 1 1 0 8 1 amappl14 184 3 0 3 1 0 1 1 0 8 1 amappl13 176 430 0 429 1 0 1 1 0 8 0 amappl12 168 1270 0 1233 2 0 2 2 0 8 0 amappl11 160 7 0 7 1 0 1 1 0 8 1 amappl10 152 43 0 33 1 0 1 1 0 8 0 amappl9 144 258 0 257 1 0 1 1 0 8 0 amappl8 136 120 0 119 1 0 1 1 0 8 0 amappl7 128 85 0 83 1 0 1 1 0 8 0 amappl6 120 301 0 290 1 0 1 1 0 8 0 amappl5 112 69 0 61 1 0 1 1 0 8 0 amappl4 104 403 0 381 1 0 1 1 0 8 0 amappl3 96 3990 0 3910 3 0 3 3 0 8 0 amappl2 88 1046 0 973 2 0 2 2 0 8 0 amappl1 80 11729 0 11197 13 0 13 13 0 8 1 amappl 88 6559 0 6414 5 0 5 5 0 92 0 uvmvnodes 80 113 0 0 3 0 3 3 0 8 0 dma65536 65536 1 0 1 1 0 1 1 0 8 1 dma4096 4096 1 0 1 1 0 1 1 0 8 1 dma2048 2048 1 0 1 1 0 1 1 0 8 1 dma1024 1024 1 0 0 1 0 1 1 0 8 0 dma256 256 7 0 7 1 0 1 1 0 8 1 dma128 128 255 0 255 1 0 1 1 0 8 1 dma64 64 6 0 6 1 0 1 1 0 8 1 dma32 32 7 0 7 1 0 1 1 0 8 1 dma16 16 19 0 18 1 0 1 1 0 8 0 aobjpl 72 96 0 13 2 0 2 2 0 8 0 uaddrrnd 24 909 0 881 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 909 0 881 1 0 1 1 0 8 0 vmmpekpl 168 9195 0 9161 2 0 2 2 0 8 0 vmmpepl 168 64919 0 63197 93 0 93 93 0 357 11 vmsppl 368 908 0 881 4 0 4 4 0 8 1 rwobjpl 40 19717 0 18702 13 0 13 13 0 8 2 pdppl 4096 1833 0 1767 103 33 70 77 0 8 4 pvpl 32 397670 0 388236 128 0 128 128 0 265 33 pmappl 216 912 0 882 2 0 2 2 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 394 0 33 11 0 11 11 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff83325ab2) at panic+0x1cf sys/kern/subr_prf.c:198 rw_do_enter_read(ffff800001588860,0) at rw_do_enter_read+0x435 sys/kern/kern_rwlock.c:379 in6_hasmulti(fffffd806b6522f0,ffff800001588800) at in6_hasmulti+0x41 in6_lookupmulti sys/netinet6/in6.c:-1 [inline] in6_hasmulti(fffffd806b6522f0,ffff800001588800) at in6_hasmulti+0x41 sys/netinet6/in6.c:1150 ip6_output(fffffd806b652200,ffffffff839adbf8,0,0,ffff80003c9f2fe0,0) at ip6_output+0x1369 sys/netinet6/ip6_output.c:507 mld6_sendpkt(ffff800001596680,84,ffff80003c9f3078) at mld6_sendpkt+0x364 sys/netinet6/mld6.c:499 mld6_stop_listening(ffff800001596680,ffff800001588800) at mld6_stop_listening+0x125 sys/netinet6/mld6.c:168 in6_delmulti(ffff800001596680) at in6_delmulti+0xb1 sys/netinet6/in6.c:1118 in6_purgeaddr(ffff800001599c00) at in6_purgeaddr+0x1d5 in6_leavegroup sys/netinet6/in6.c:1181 [inline] in6_purgeaddr(ffff800001599c00) at in6_purgeaddr+0x1d5 sys/netinet6/in6.c:916 ifnewlladdr(ffff800001588800) at ifnewlladdr+0x1f3 sys/net/if.c:3640 ifioctl(ffff8000015b1390,8020691f,ffff80003c9f33b0,ffff80003c9522c8) at ifioctl+0x2ccc sys/net/if.c:2456 sys_ioctl(ffff80003c9522c8,ffff80003c9f3580,ffff80003c9f34d0) at sys_ioctl+0x660 sys/kern/sys_generic.c:-1 syscall(ffff80003c9f3580) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c9f3580) at syscall+0x962 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x40457fb99a0, count: -14 ddb> machine ddbcpu 1 No such command ddb> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff83325ab2) at panic+0x1cf sys/kern/subr_prf.c:198 rw_do_enter_read(ffff800001588860,0) at rw_do_enter_read+0x435 sys/kern/kern_rwlock.c:379 in6_hasmulti(fffffd806b6522f0,ffff800001588800) at in6_hasmulti+0x41 in6_lookupmulti sys/netinet6/in6.c:-1 [inline] in6_hasmulti(fffffd806b6522f0,ffff800001588800) at in6_hasmulti+0x41 sys/netinet6/in6.c:1150 ip6_output(fffffd806b652200,ffffffff839adbf8,0,0,ffff80003c9f2fe0,0) at ip6_output+0x1369 sys/netinet6/ip6_output.c:507 mld6_sendpkt(ffff800001596680,84,ffff80003c9f3078) at mld6_sendpkt+0x364 sys/netinet6/mld6.c:499 mld6_stop_listening(ffff800001596680,ffff800001588800) at mld6_stop_listening+0x125 sys/netinet6/mld6.c:168 in6_delmulti(ffff800001596680) at in6_delmulti+0xb1 sys/netinet6/in6.c:1118 in6_purgeaddr(ffff800001599c00) at in6_purgeaddr+0x1d5 in6_leavegroup sys/netinet6/in6.c:1181 [inline] in6_purgeaddr(ffff800001599c00) at in6_purgeaddr+0x1d5 sys/netinet6/in6.c:916 ifnewlladdr(ffff800001588800) at ifnewlladdr+0x1f3 sys/net/if.c:3640 ifioctl(ffff8000015b1390,8020691f,ffff80003c9f33b0,ffff80003c9522c8) at ifioctl+0x2ccc sys/net/if.c:2456 sys_ioctl(ffff80003c9522c8,ffff80003c9f3580,ffff80003c9f34d0) at sys_ioctl+0x660 sys/kern/sys_generic.c:-1 syscall(ffff80003c9f3580) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c9f3580) at syscall+0x962 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x40457fb99a0, count: -14