panic() at panic+0x15c sys/kern/subr_prf.c:207 ifa_update_broadaddr(ffff800000ac6800,ffff800000abec00,ffff800017971830) at ifa_update_broadaddr+0x61 sys/net/if.c:2970 in_ioctl(80206913,ffff800017971820,ffff800000ac6800,1) at in_ioctl+0x463 sys/netinet/in.c:299 ifioctl(fffffd80363dbd88,80206913,ffff800017971820,ffff800015934018) at ifioctl+0xb34 sys/net/if.c:2202 sys_ioctl(ffff800015934018,ffff800017971938,ffff800017971980) at sys_ioctl+0x5b9 syscall(ffff800017971a00) at syscall+0x507 sys/arch/amd64/amd64/trap.c:555 Xsyscall(6,0,ffffffffffffff36,0,3,bef34f69010) at Xsyscall+0x128 end of kernel end trace frame: 0xbf21438ef30, count: 7 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 ifa_update_broadaddr does not support dynamic length ddb> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic() at panic+0x15c sys/kern/subr_prf.c:207 ifa_update_broadaddr(ffff800000ac6800,ffff800000abec00,ffff800017971830) at ifa_update_broadaddr+0x61 sys/net/if.c:2970 in_ioctl(80206913,ffff800017971820,ffff800000ac6800,1) at in_ioctl+0x463 sys/netinet/in.c:299 ifioctl(fffffd80363dbd88,80206913,ffff800017971820,ffff800015934018) at ifioctl+0xb34 sys/net/if.c:2202 sys_ioctl(ffff800015934018,ffff800017971938,ffff800017971980) at sys_ioctl+0x5b9 syscall(ffff800017971a00) at syscall+0x507 sys/arch/amd64/amd64/trap.c:555 Xsyscall(6,0,ffffffffffffff36,0,3,bef34f69010) at Xsyscall+0x128 end of kernel end trace frame: 0xbf21438ef30, count: -8 ddb> show registers rdi 0xffffffff81a751a7 db_enter+0x17 rsi 0x1acad acpi_pdirpa+0x6b15 rbp 0xffff8000179715c0 rbx 0xffff800017971670 rdx 0x1acae acpi_pdirpa+0x6b16 rcx 0xffff800017758000 rax 0xffff800017758000 r8 0xffff800017971580 r9 0x1 r10 0xffff800000aa5dc0 r11 0x1dfe396193c14dba r12 0x3000000008 r13 0xffff8000179715d0 r14 0x100 r15 0x1 rip 0xffffffff81a751a8 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff8000179715b0 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb> show proc PROC (syz-executor.1) pid=514422 stat=onproc flags process=0 proc=4000000 pri=86, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff800015934290,0xffffffff825707f0 process=0xffff8000ffff6d90 user=0xffff80001796c000, vmspace=0xfffffd803f014000 estcpu=36, cpticks=9, pctcpu=0.0 user=0, sys=8, intr=1 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 98042 113824 80150 0 2 0 syz-executor.1 *98042 514422 80150 0 7 0x4000000 syz-executor.1 80150 399952 1331 0 2 0x482 syz-executor.1 26770 473239 0 0 3 0x14200 acct acct 14631 179262 1331 0 2 0x482 syz-executor.0 29797 31988 0 0 3 0x14200 bored sosplice 1331 273118 79134 0 3 0x82 thrsleep syz-fuzzer 1331 512510 79134 0 3 0x4000082 thrsleep syz-fuzzer 1331 494235 79134 0 3 0x4000082 thrsleep syz-fuzzer 1331 75333 79134 0 3 0x4000082 thrsleep syz-fuzzer 1331 299945 79134 0 3 0x4000082 thrsleep syz-fuzzer 1331 496744 79134 0 3 0x4000082 kqread syz-fuzzer 1331 73010 79134 0 3 0x4000082 thrsleep syz-fuzzer 79134 355631 54710 0 3 0x10008a pause ksh 54710 418321 47793 0 3 0x92 select sshd 17035 397557 1 0 3 0x100083 ttyin getty 47793 17659 1 0 3 0x80 select sshd 18396 508456 93109 73 3 0x100090 kqread syslogd 93109 318294 1 0 3 0x100082 netio syslogd 2862 213312 1 77 3 0x100090 poll dhclient 58934 389445 1 0 3 0x80 poll dhclient 35252 221040 0 0 2 0x14200 zerothread 62108 234370 0 0 3 0x14200 aiodoned aiodoned 72462 486952 0 0 3 0x14200 syncer update 24740 189621 0 0 3 0x14200 cleaner cleaner 52477 167552 0 0 3 0x14200 reaper reaper 94777 496728 0 0 3 0x14200 pgdaemon pagedaemon 64686 119330 0 0 3 0x14200 bored crynlk 33161 166773 0 0 3 0x14200 bored crypto 85881 40515 0 0 3 0x40014200 acpi0 acpi0 42314 26121 0 0 3 0x14200 bored softnet 78269 426174 0 0 3 0x14200 bored systqmp 99842 30052 0 0 3 0x14200 bored systq 59337 470515 0 0 2 0x40014200 softclock 24595 280832 0 0 3 0x40014200 idle0 82664 453544 0 0 3 0x14200 bored smr 1 25371 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 Kern Lim devbuf 9560 6371K 7429K 78643K 13718 0 0 pcb 13 10K 12K 78643K 267 0 0 rtable 101 8K 8K 78643K 1003 0 0 ifaddr 79 15K 16K 78643K 250 0 0 counters 19 16K 16K 78643K 19 0 0 ioctlops 0 0K 2K 78643K 73 0 0 iov 0 0K 24K 78643K 579 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1228 77K 78K 78643K 2318 0 0 UFS quota 1 32K 32K 78643K 1 0 0 UFS mount 5 36K 36K 78643K 5 0 0 shm 2 1K 5K 78643K 17 0 0 VM map 11 2K 2K 78643K 12 0 0 sem 12 1K 1K 78643K 186 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1793 195K 288K 78643K 12645 0 0 file desc 5 13K 25K 78643K 1153 0 0 sigio 0 0K 0K 78643K 26 0 0 proc 49 38K 54K 78643K 744 0 0 subproc 32 2K 2K 78643K 157 0 0 NFS srvsock 1 0K 0K 78643K 1 0 0 NFS daemon 1 16K 16K 78643K 1 0 0 ip_moptions 0 0K 0K 78643K 86 0 0 in_multi 23 1K 2K 78643K 168 0 0 ether_multi 1 0K 0K 78643K 12 0 0 mrt 1 0K 0K 78643K 6 0 0 ISOFS mount 1 32K 32K 78643K 1 0 0 MSDOSFS mount 1 16K 16K 78643K 1 0 0 ttys 66 291K 291K 78643K 66 0 0 exec 0 0K 1K 78643K 424 0 0 pagedep 1 8K 8K 78643K 1 0 0 inodedep 1 32K 32K 78643K 1 0 0 newblk 1 0K 0K 78643K 1 0 0 VM swap 7 26K 26K 78643K 7 0 0 UVM amap 123 120K 120K 78643K 3699 0 0 UVM aobj 70 3K 3K 78643K 79 0 0 memdesc 1 4K 4K 78643K 1 0 0 crypto data 1 1K 1K 78643K 1 0 0 ip6_options 0 0K 0K 78643K 257 0 0 NDP 19 0K 0K 78643K 80 0 0 temp 219 3540K 3615K 78643K 35195 0 0 kqueue 0 0K 0K 78643K 14 0 0 SYN cache 2 16K 16K 78643K 2 0 0 ddb> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle arp 64 43 0 39 1 0 1 1 0 8 0 rtpcb 80 122 0 120 1 0 1 1 0 8 0 rtentry 112 187 0 151 2 0 2 2 0 8 0 unpcb 120 559 0 551 1 0 1 1 0 8 0 syncache 264 12 0 12 4 4 0 1 0 8 0 tcpqe 32 29 0 29 1 1 0 1 0 8 0 tcpcb 544 1044 0 1040 16 15 1 15 0 8 0 ipq 40 2 0 2 1 1 0 1 0 8 0 ipqe 40 4 0 4 1 1 0 1 0 8 0 inpcb 280 3099 0 3091 12 9 3 9 0 8 2 rttmr 72 1 0 1 1 1 0 1 0 8 0 ip6q 72 2 0 2 1 1 0 1 0 8 0 ip6af 40 6 0 6 1 1 0 1 0 8 0 nd6 48 20 0 18 2 1 1 1 0 8 0 pkpcb 40 10 0 10 3 2 1 1 0 8 1 ppxss 1128 19 0 19 4 3 1 1 0 8 1 art_heap8 4096 6 0 5 3 1 2 3 0 8 1 art_heap4 256 714 0 536 20 8 12 15 0 8 0 art_table 32 720 0 541 2 0 2 2 0 8 0 art_node 16 186 0 153 1 0 1 1 0 8 0 semupl 112 2 0 2 1 1 0 1 0 8 0 semapl 112 180 0 170 1 0 1 1 0 8 0 shmpl 112 77 0 9 2 0 2 2 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 3147 0 1757 46 0 46 46 0 8 0 ffsino 240 3147 0 1757 83 0 83 83 0 8 0 nchpl 144 5175 0 3563 60 0 60 60 0 8 0 uvmvnodes 72 4001 0 0 73 0 73 73 0 8 0 vnodes 208 4001 0 0 211 0 211 211 0 8 0 namei 1024 16311 0 16311 3 2 1 1 0 8 1 vcpupl 1984 9 0 0 2 0 2 2 0 8 0 vmpool 520 10 0 1 1 0 1 1 0 8 0 scxspl 192 19767 0 19767 14 12 2 7 0 8 2 plimitpl 152 138 0 131 1 0 1 1 0 8 0 sigapl 432 1303 0 1290 2 0 2 2 0 8 0 futexpl 56 34889 0 34889 2 1 1 1 0 8 1 knotepl 112 369 0 350 1 0 1 1 0 8 0 kqueuepl 104 651 0 649 4 3 1 4 0 8 0 pipepl 112 782 0 763 4 3 1 2 0 8 0 fdescpl 424 1304 0 1290 2 0 2 2 0 8 0 filepl 120 11626 0 11530 14 9 5 11 0 8 2 lockfpl 104 366 0 365 1 0 1 1 0 8 0 lockfspl 48 133 0 132 1 0 1 1 0 8 0 sessionpl 112 24 0 14 1 0 1 1 0 8 0 pgrppl 48 38 0 28 1 0 1 1 0 8 0 ucredpl 96 1133 0 1126 1 0 1 1 0 8 0 zombiepl 144 1290 0 1289 2 1 1 1 0 8 0 processpl 864 1320 0 1289 4 0 4 4 0 8 0 procpl 632 2649 0 2611 4 0 4 4 0 8 0 sosppl 128 16 0 16 5 4 1 1 0 8 1 sockpl 384 3809 0 3791 21 16 5 14 0 8 3 mcl64k 65536 790 0 790 61 43 18 29 0 8 18 mcl16k 16384 12 0 12 4 3 1 1 0 8 1 mcl12k 12288 27 0 27 4 3 1 1 0 8 1 mcl9k 9216 26 0 26 2 1 1 1 0 8 1 mcl8k 8192 56 0 56 2 1 1 1 0 8 1 mcl4k 4096 129 0 129 3 2 1 1 0 8 1 mcl2k2 2112 8 0 8 4 3 1 1 0 8 1 mcl2k 2048 67744 0 67708 11 5 6 9 0 8 1 mtagpl 80 43 0 39 2 1 1 1 0 8 0 mbufpl 256 116509 0 116434 48 35 13 23 0 8 7 bufpl 256 11327 0 5108 389 0 389 389 0 8 0 anonpl 16 180353 0 162429 106 24 82 86 0 62 5 amapchunkpl 152 7605 0 7458 30 23 7 19 0 158 0 amappl16 192 8168 0 7107 86 29 57 60 0 8 3 amappl15 184 19 0 17 1 0 1 1 0 8 0 amappl14 176 116 0 111 2 1 1 1 0 8 0 amappl13 168 130 0 130 1 1 0 1 0 8 0 amappl12 160 84 0 81 1 0 1 1 0 8 0 amappl11 152 66 0 55 1 0 1 1 0 8 0 amappl10 144 707 0 703 1 0 1 1 0 8 0 amappl9 136 698 0 692 1 0 1 1 0 8 0 amappl8 128 317 0 286 2 0 2 2 0 8 0 amappl7 120 753 0 745 1 0 1 1 0 8 0 amappl6 112 76 0 65 1 0 1 1 0 8 0 amappl5 104 400 0 390 1 0 1 1 0 8 0 amappl4 96 1614 0 1589 1 0 1 1 0 8 0 amappl3 88 197 0 192 1 0 1 1 0 8 0 amappl2 80 9199 0 9127 4 2 2 3 0 8 0 amappl1 72 33298 0 32889 27 18 9 20 0 8 0 amappl 80 3002 0 2952 2 0 2 2 0 84 0 dma4096 4096 1 0 1 1 1 0 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 17 0 17 1 1 0 1 0 8 0 aobjpl 64 78 0 9 2 0 2 2 0 8 0 uaddrrnd 24 1314 0 1290 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1314 0 1290 1 0 1 1 0 8 0 vmmpekpl 168 12661 0 12630 2 0 2 2 0 8 0 vmmpepl 168 165109 0 162969 209 76 133 133 0 357 34 vmsppl 272 1303 0 1290 3 2 1 2 0 8 0 pdppl 4096 2634 0 2591 7 1 6 6 0 8 0 pvpl 32 512573 0 492325 302 95 207 297 0 265 34 pmappl 200 1313 0 1291 2 0 2 2 0 8 0 extentpl 40 41 0 26 1 0 1 1 0 8 0 phpool 112 658 0 120 16 0 16 16 0 8 0