panic() at panic+0x15c sys/kern/subr_prf.c:207 ifa_update_broadaddr(ffff800000a8d000,ffff800000a9d200,ffff8000149385e0) at ifa_update_broadaddr+0x61 sys/net/if.c:2970 in_ioctl(80206913,ffff8000149385d0,ffff800000a8d000,1) at in_ioctl+0x463 sys/netinet/in.c:299 ifioctl(fffffd803700f180,80206913,ffff8000149385d0,ffff8000ffff3160) at ifioctl+0xb34 sys/net/if.c:2202 sys_ioctl(ffff8000ffff3160,ffff8000149386e8,ffff800014938730) at sys_ioctl+0x5b9 syscall(ffff8000149387b0) at syscall+0x507 sys/arch/amd64/amd64/trap.c:555 Xsyscall(6,0,ffffffffffffff36,0,3,205e4224010) at Xsyscall+0x128 end of kernel end trace frame: 0x208c67f8f60, 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(ffff800000a8d000,ffff800000a9d200,ffff8000149385e0) at ifa_update_broadaddr+0x61 sys/net/if.c:2970 in_ioctl(80206913,ffff8000149385d0,ffff800000a8d000,1) at in_ioctl+0x463 sys/netinet/in.c:299 ifioctl(fffffd803700f180,80206913,ffff8000149385d0,ffff8000ffff3160) at ifioctl+0xb34 sys/net/if.c:2202 sys_ioctl(ffff8000ffff3160,ffff8000149386e8,ffff800014938730) at sys_ioctl+0x5b9 syscall(ffff8000149387b0) at syscall+0x507 sys/arch/amd64/amd64/trap.c:555 Xsyscall(6,0,ffffffffffffff36,0,3,205e4224010) at Xsyscall+0x128 end of kernel end trace frame: 0x208c67f8f60, count: -8 ddb> show registers rdi 0xffffffff81073db7 db_enter+0x17 rsi 0x1a3b5 acpi_pdirpa+0x621d rbp 0xffff800014938370 rbx 0xffff800014938420 rdx 0x1a3b6 acpi_pdirpa+0x621e rcx 0xffff800015943000 rax 0xffff800015943000 r8 0xffff800014938330 r9 0x1 r10 0xffff800000a62000 r11 0x1a47a4532ce8e823 r12 0x3000000008 r13 0xffff800014938380 r14 0x100 r15 0x1 rip 0xffffffff81073db8 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff800014938360 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb> show proc PROC (syz-executor.1) pid=126580 stat=onproc flags process=0 proc=4000000 pri=86, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff8000ffff38c8,0xffffffff82588aa8 process=0xffff8000ffff66d0 user=0xffff800014933000, vmspace=0xfffffd803f014dd0 estcpu=36, cpticks=9, pctcpu=0.0 user=0, sys=9, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 11494 211205 58183 0 2 0 syz-executor.1 *11494 126580 58183 0 7 0x4000000 syz-executor.1 15249 246978 58522 0 2 0x480 syz-executor.0 15249 341942 58522 0 3 0x4000080 ttyout syz-executor.0 15249 191664 58522 0 3 0x4000080 fsleep syz-executor.0 58183 258258 99862 0 2 0x482 syz-executor.1 58522 408299 99862 0 2 0x482 syz-executor.0 27007 22939 0 0 3 0x14200 bored sosplice 99862 365612 33293 0 3 0x82 thrsleep syz-fuzzer 99862 486766 33293 0 3 0x4000082 thrsleep syz-fuzzer 99862 508745 33293 0 2 0x4000482 syz-fuzzer 99862 345471 33293 0 3 0x4000082 thrsleep syz-fuzzer 99862 491912 33293 0 3 0x4000082 thrsleep syz-fuzzer 99862 303379 33293 0 3 0x4000082 kqread syz-fuzzer 99862 280036 33293 0 3 0x4000082 thrsleep syz-fuzzer 33293 505792 79708 0 3 0x10008a pause ksh 79708 114068 26732 0 3 0x92 select sshd 26732 122572 1 0 3 0x80 select sshd 46198 343242 3871 73 3 0x100090 kqread syslogd 3871 55642 1 0 3 0x100082 netio syslogd 66284 130043 1 77 3 0x100090 poll dhclient 35912 300031 1 0 3 0x80 poll dhclient 80901 41259 0 0 2 0x14200 zerothread 77385 135706 0 0 3 0x14200 aiodoned aiodoned 6832 23067 0 0 3 0x14200 syncer update 88903 427242 0 0 3 0x14200 cleaner cleaner 2411 504097 0 0 3 0x14200 reaper reaper 47843 414084 0 0 3 0x14200 pgdaemon pagedaemon 36923 72324 0 0 3 0x14200 bored crynlk 66544 292386 0 0 3 0x14200 bored crypto 25546 355216 0 0 3 0x40014200 acpi0 acpi0 78096 324039 0 0 3 0x14200 bored softnet 14046 493457 0 0 3 0x14200 bored systqmp 35921 128291 0 0 3 0x14200 bored systq 42016 469401 0 0 3 0x40014200 bored softclock 98139 464660 0 0 3 0x40014200 idle0 10009 294592 0 0 3 0x14200 bored smr 1 110261 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 9530 6361K 7053K 78643K 14138 0 0 pcb 13 8K 8K 78643K 232 0 0 rtable 95 7K 7K 78643K 658 0 0 ifaddr 64 13K 14K 78643K 209 0 0 counters 19 16K 16K 78643K 19 0 0 ioctlops 0 0K 2K 78643K 94 0 0 iov 0 0K 24K 78643K 611 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1211 76K 77K 78643K 2649 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 23 0 0 VM map 2 0K 0K 78643K 8 0 0 sem 12 1K 1K 78643K 387 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1793 195K 288K 78643K 12645 0 0 file desc 6 17K 25K 78643K 1655 0 0 sigio 0 0K 0K 78643K 28 0 0 proc 49 38K 55K 78643K 707 0 0 subproc 32 2K 2K 78643K 119 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 149 0 0 in_multi 22 1K 2K 78643K 133 0 0 ether_multi 1 0K 0K 78643K 10 0 0 mrt 0 0K 0K 78643K 7 0 0 ISOFS mount 1 32K 32K 78643K 1 0 0 MSDOSFS mount 1 16K 16K 78643K 1 0 0 ttys 72 318K 318K 78643K 72 0 0 exec 0 0K 1K 78643K 386 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 97 21K 30K 78643K 4841 0 0 UVM aobj 79 3K 3K 78643K 89 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 198 0 0 NDP 15 0K 0K 78643K 64 0 0 temp 190 3532K 4161K 78643K 34291 0 0 kqueue 0 0K 0K 78643K 10 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 16 0 12 1 0 1 1 0 8 0 rtpcb 80 183 0 181 1 0 1 1 0 8 0 rtentry 112 98 0 64 2 0 2 2 0 8 0 unpcb 120 4095 0 4086 5 3 2 2 0 8 1 syncache 264 7 0 7 3 3 0 1 0 8 0 sackhl 24 1 0 1 1 1 0 1 0 8 0 tcpqe 32 6807 0 6807 2 2 0 1 0 8 0 tcpcb 544 457 0 452 2 1 1 2 0 8 0 ipq 40 4 0 4 2 2 0 1 0 8 0 ipqe 40 8 0 8 2 2 0 1 0 8 0 inpcb 280 1474 0 1465 6 4 2 3 0 8 1 rttmr 72 1 0 1 1 1 0 1 0 8 0 nd6 48 14 0 12 1 0 1 1 0 8 0 pkpcb 40 6 0 6 2 2 0 1 0 8 0 ppxss 1128 21 0 21 3 3 0 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 445 0 272 17 6 11 14 0 8 0 art_table 32 446 0 272 2 0 2 2 0 8 0 art_node 16 95 0 64 1 0 1 1 0 8 0 sysvmsgpl 40 20 0 6 1 0 1 1 0 8 0 semapl 112 385 0 375 1 0 1 1 0 8 0 shmpl 112 87 0 10 3 0 3 3 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 4095 0 2709 46 0 46 46 0 8 0 ffsino 240 4095 0 2709 83 0 83 83 0 8 0 nchpl 144 6874 0 5263 61 0 61 61 0 8 0 uvmvnodes 72 5115 0 0 93 0 93 93 0 8 0 vnodes 208 5115 0 0 270 0 270 270 0 8 0 namei 1024 20781 0 20781 3 2 1 1 0 8 1 vmpool 520 6 0 6 3 3 0 1 0 8 0 scsiplug 64 3 0 3 3 3 0 1 0 8 0 scxspl 192 20412 0 20412 17 14 3 7 0 8 3 plimitpl 152 129 0 122 1 0 1 1 0 8 0 sigapl 432 1814 0 1800 2 0 2 2 0 8 0 futexpl 56 35530 0 35529 1 0 1 1 0 8 0 knotepl 112 445 0 426 4 3 1 3 0 8 0 kqueuepl 104 453 0 451 1 0 1 1 0 8 0 pipepl 112 956 0 937 4 3 1 2 0 8 0 fdescpl 424 1815 0 1801 2 0 2 2 0 8 0 filepl 120 15641 0 15538 11 6 5 6 0 8 1 lockfpl 104 1328 0 1323 1 0 1 1 0 8 0 lockfspl 48 356 0 353 1 0 1 1 0 8 0 sessionpl 112 25 0 15 1 0 1 1 0 8 0 pgrppl 48 37 0 27 1 0 1 1 0 8 0 ucredpl 96 1889 0 1882 1 0 1 1 0 8 0 zombiepl 144 1803 0 1802 3 2 1 1 0 8 0 processpl 864 1832 0 1802 4 0 4 4 0 8 0 procpl 632 3837 0 3798 4 0 4 4 0 8 0 sosppl 128 17 0 17 4 4 0 1 0 8 0 sockpl 384 5800 0 5780 15 9 6 7 0 8 3 mcl64k 65536 769 0 769 67 66 1 64 0 8 1 mcl16k 16384 6 0 6 4 4 0 1 0 8 0 mcl12k 12288 27 0 27 4 3 1 1 0 8 1 mcl9k 9216 9 0 9 6 5 1 1 0 8 1 mcl8k 8192 43 0 43 4 4 0 1 0 8 0 mcl4k 4096 140 0 140 2 1 1 1 0 8 1 mcl2k2 2112 18 0 18 8 7 1 1 0 8 1 mcl2k 2048 56211 0 56159 25 17 8 19 0 8 0 mtagpl 80 113 0 81 2 1 1 1 0 8 0 mbufpl 256 102937 0 102786 57 46 11 41 0 8 0 bufpl 256 10833 0 4996 366 0 366 366 0 8 0 anonpl 16 218754 0 204026 116 40 76 78 0 62 15 amapchunkpl 152 8844 0 8735 20 13 7 10 0 158 1 amappl16 192 10581 0 9731 106 54 52 55 0 8 8 amappl15 184 146 0 146 1 1 0 1 0 8 0 amappl14 176 684 0 679 2 1 1 1 0 8 0 amappl12 160 223 0 217 1 0 1 1 0 8 0 amappl11 152 63 0 52 1 0 1 1 0 8 0 amappl10 144 539 0 537 2 1 1 1 0 8 0 amappl9 136 638 0 632 1 0 1 1 0 8 0 amappl8 128 216 0 185 2 0 2 2 0 8 0 amappl7 120 581 0 576 1 0 1 1 0 8 0 amappl6 112 83 0 74 1 0 1 1 0 8 0 amappl5 104 379 0 368 1 0 1 1 0 8 0 amappl4 96 1517 0 1490 1 0 1 1 0 8 0 amappl3 88 1310 0 1300 1 0 1 1 0 8 0 amappl2 80 13602 0 13526 4 2 2 3 0 8 0 amappl1 72 41037 0 40611 31 22 9 20 0 8 0 amappl 80 4201 0 4163 1 0 1 1 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 dma64 64 259 0 259 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 88 0 10 2 0 2 2 0 8 0 uaddrrnd 24 1821 0 1800 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1821 0 1800 1 0 1 1 0 8 0 vmmpekpl 168 15479 0 15457 2 0 2 2 0 8 0 vmmpepl 168 221522 0 219510 216 117 99 135 0 357 9 vmsppl 272 1814 0 1800 4 3 1 2 0 8 0 pdppl 4096 3648 0 3612 6 1 5 6 0 8 0 pvpl 32 546701 0 528893 248 67 181 188 0 265 35 pmappl 200 1820 0 1806 1 0 1 1 0 8 0 extentpl 40 41 0 26 1 0 1 1 0 8 0 phpool 112 646 0 153 18 1 17 17 0 8 0