panic() at panic+0x15c sys/kern/subr_prf.c:207 ifa_update_broadaddr(ffff800000b62000,ffff800000b2b500,ffff800016985350) at ifa_update_broadaddr+0x61 sys/net/if.c:2970 in_ioctl(80206913,ffff800016985340,ffff800000b62000,1) at in_ioctl+0x463 sys/netinet/in.c:299 ifioctl(fffffd80363cc488,80206913,ffff800016985340,ffff800015949b40) at ifioctl+0xb34 sys/net/if.c:2202 sys_ioctl(ffff800015949b40,ffff800016985458,ffff8000169854a0) at sys_ioctl+0x5b9 syscall(ffff800016985520) at syscall+0x507 sys/arch/amd64/amd64/trap.c:555 Xsyscall(6,0,ffffffffffffff36,0,3,fa5201dd010) at Xsyscall+0x128 end of kernel end trace frame: 0xfa72d4bd1a0, 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(ffff800000b62000,ffff800000b2b500,ffff800016985350) at ifa_update_broadaddr+0x61 sys/net/if.c:2970 in_ioctl(80206913,ffff800016985340,ffff800000b62000,1) at in_ioctl+0x463 sys/netinet/in.c:299 ifioctl(fffffd80363cc488,80206913,ffff800016985340,ffff800015949b40) at ifioctl+0xb34 sys/net/if.c:2202 sys_ioctl(ffff800015949b40,ffff800016985458,ffff8000169854a0) at sys_ioctl+0x5b9 syscall(ffff800016985520) at syscall+0x507 sys/arch/amd64/amd64/trap.c:555 Xsyscall(6,0,ffffffffffffff36,0,3,fa5201dd010) at Xsyscall+0x128 end of kernel end trace frame: 0xfa72d4bd1a0, count: -8 ddb> show registers rdi 0xffffffff8199afa7 db_enter+0x17 rsi 0x3160 __ALIGN_SIZE+0x2160 rbp 0xffff8000169850e0 rbx 0xffff800016985190 rdx 0x3161 __ALIGN_SIZE+0x2161 rcx 0xffff800015978000 rax 0xffff800015978000 r8 0xffff8000169850a0 r9 0x1 r10 0xffff800000a6fc40 r11 0xfdcba21e0891a69 r12 0x3000000008 r13 0xffff8000169850f0 r14 0x100 r15 0x1 rip 0xffffffff8199afa8 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff8000169850d0 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb> show proc PROC (syz-executor.1) pid=484696 stat=onproc flags process=0 proc=4000000 pri=83, usrpri=83, nice=20 forw=0xffffffffffffffff, list=0xffff800015948290,0xffffffff8255de78 process=0xffff8000ffff7450 user=0xffff800016980000, vmspace=0xfffffd803f013000 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 83934 464647 51325 0 2 0 syz-executor.1 *83934 484696 51325 0 7 0x4000000 syz-executor.1 3306 206101 39330 0 3 0x82 nanosleep syz-executor.0 51325 324770 39330 0 3 0x82 nanosleep syz-executor.1 96386 475635 1 0 3 0x100083 ttyin getty 42274 340868 0 0 3 0x14200 bored sosplice 39330 298160 6603 0 3 0x82 thrsleep syz-fuzzer 39330 189739 6603 0 3 0x4000082 thrsleep syz-fuzzer 39330 189754 6603 0 3 0x4000082 thrsleep syz-fuzzer 39330 291999 6603 0 3 0x4000082 thrsleep syz-fuzzer 39330 56063 6603 0 3 0x4000082 thrsleep syz-fuzzer 39330 138925 6603 0 3 0x4000082 kqread syz-fuzzer 39330 143713 6603 0 3 0x4000082 thrsleep syz-fuzzer 39330 100491 6603 0 3 0x4000082 thrsleep syz-fuzzer 6603 108808 15524 0 3 0x10008a pause ksh 15524 105359 87762 0 3 0x92 select sshd 87762 385665 1 0 3 0x80 select sshd 71707 308402 48735 73 3 0x100090 kqread syslogd 48735 9344 1 0 3 0x100082 netio syslogd 70059 121100 1 77 3 0x100090 poll dhclient 77158 137482 1 0 3 0x80 poll dhclient 71711 397261 0 0 2 0x14200 zerothread 42524 92230 0 0 3 0x14200 aiodoned aiodoned 13975 522474 0 0 3 0x14200 syncer update 10184 340900 0 0 3 0x14200 cleaner cleaner 43818 277226 0 0 3 0x14200 reaper reaper 26136 218201 0 0 3 0x14200 pgdaemon pagedaemon 58091 229525 0 0 3 0x14200 bored crynlk 78861 46055 0 0 3 0x14200 bored crypto 85275 280024 0 0 3 0x40014200 acpi0 acpi0 23605 487551 0 0 3 0x14200 bored softnet 99720 213343 0 0 3 0x14200 bored systqmp 88166 370738 0 0 3 0x14200 bored systq 10954 77745 0 0 2 0x40014200 softclock 30991 468944 0 0 3 0x40014200 idle0 47414 193554 0 0 3 0x14200 bored smr 1 196978 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 9643 6381K 8237K 78643K 22932 0 0 pcb 13 10K 12K 78643K 465 0 0 rtable 106 8K 8K 78643K 1760 0 0 ifaddr 80 16K 17K 78643K 389 0 0 counters 19 16K 16K 78643K 19 0 0 ioctlops 0 0K 2K 78643K 165 0 0 iov 0 0K 24K 78643K 519 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1231 77K 78K 78643K 5169 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 41 0 0 VM map 17 4K 4K 78643K 34 0 0 sem 12 0K 0K 78643K 606 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1793 195K 288K 78643K 12645 0 0 file desc 5 13K 25K 78643K 2185 0 0 sigio 0 0K 0K 78643K 176 0 0 proc 49 38K 55K 78643K 1141 0 0 subproc 32 2K 2K 78643K 295 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 166 0 0 in_multi 23 1K 2K 78643K 344 0 0 ether_multi 1 0K 0K 78643K 24 0 0 mrt 0 0K 0K 78643K 27 0 0 ISOFS mount 1 32K 32K 78643K 1 0 0 MSDOSFS mount 1 16K 16K 78643K 1 0 0 ttys 222 980K 980K 78643K 222 0 0 exec 0 0K 1K 78643K 640 0 0 pfkey data 0 0K 4K 78643K 4 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 133 152K 154K 78643K 6361 0 0 UVM aobj 130 8K 8K 78643K 145 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 517 0 0 NDP 20 0K 1K 78643K 133 0 0 temp 227 3544K 4179K 78643K 97781 0 0 kqueue 0 0K 0K 78643K 2 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 78 0 74 1 0 1 1 0 8 0 rtpcb 80 215 0 213 1 0 1 1 0 8 0 rtentry 112 364 0 328 2 0 2 2 0 8 0 unpcb 120 1793 0 1785 6 3 3 3 0 8 2 syncache 264 20 0 20 7 7 0 1 0 8 0 sackhl 24 1 0 1 1 1 0 1 0 8 0 tcpqe 32 127 0 127 4 4 0 1 0 8 0 tcpcb 544 1304 0 1299 16 15 1 15 0 8 0 ipq 40 15 0 15 4 4 0 1 0 8 0 ipqe 40 293 0 293 4 4 0 1 0 8 0 inpcb 280 3567 0 3559 17 15 2 9 0 8 1 rttmr 72 13 0 13 4 4 0 1 0 8 0 ip6q 72 1 0 1 1 1 0 1 0 8 0 ip6af 40 3 0 3 1 1 0 1 0 8 0 nd6 48 44 0 42 2 1 1 1 0 8 0 pkpcb 40 10 0 10 3 2 1 1 0 8 1 swfcl 56 2 0 0 1 0 1 1 0 8 0 ppxss 1128 35 0 35 10 9 1 1 0 8 1 art_heap8 4096 8 0 6 5 3 2 3 0 8 0 art_heap4 256 1555 0 1372 26 11 15 15 0 8 3 art_table 32 1563 0 1378 2 0 2 2 0 8 0 art_node 16 363 0 330 1 0 1 1 0 8 0 sysvmsgpl 40 12 0 8 1 0 1 1 0 8 0 semapl 112 604 0 594 1 0 1 1 0 8 0 shmpl 112 143 0 15 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 5082 0 3681 46 0 46 46 0 8 0 ffsino 240 5082 0 3681 83 0 83 83 0 8 0 nchpl 144 8653 0 8158 60 41 19 60 0 8 0 uvmvnodes 72 7729 0 0 141 0 141 141 0 8 0 vnodes 208 7729 0 0 407 0 407 407 0 8 0 namei 1024 32326 0 32326 4 3 1 1 0 8 1 vcpupl 1984 15 0 0 2 0 2 2 0 8 0 vmpool 520 32 0 17 2 1 1 1 0 8 0 scsiplug 64 6 0 6 3 2 1 1 0 8 1 scxspl 192 39091 0 39091 19 17 2 7 0 8 2 plimitpl 152 222 0 215 1 0 1 1 0 8 0 sigapl 432 2313 0 2300 2 0 2 2 0 8 0 futexpl 56 65883 0 65883 6 5 1 1 0 8 1 knotepl 112 666 0 647 1 0 1 1 0 8 0 kqueuepl 104 680 0 678 4 3 1 4 0 8 0 pipepl 112 2316 0 2297 10 8 2 2 0 8 1 fdescpl 424 2314 0 2300 2 0 2 2 0 8 0 filepl 120 24286 0 24190 42 32 10 11 0 8 7 lockfpl 104 2351 0 2350 1 0 1 1 0 8 0 lockfspl 48 498 0 497 1 0 1 1 0 8 0 sessionpl 112 34 0 24 1 0 1 1 0 8 0 pgrppl 48 400 0 390 1 0 1 1 0 8 0 ucredpl 96 4502 0 4495 1 0 1 1 0 8 0 zombiepl 144 2307 0 2306 1 0 1 1 0 8 0 processpl 864 2336 0 2306 4 0 4 4 0 8 0 procpl 632 4930 0 4892 4 0 4 4 0 8 0 sosppl 128 21 0 21 5 5 0 1 0 8 0 sockpl 384 5612 0 5594 48 38 10 14 0 8 8 mcl64k 65536 453 0 453 37 36 1 32 0 8 1 mcl16k 16384 32 0 32 8 7 1 1 0 8 1 mcl12k 12288 61 0 61 8 7 1 1 0 8 1 mcl9k 9216 32 0 32 9 8 1 1 0 8 1 mcl8k 8192 107 0 107 6 5 1 1 0 8 1 mcl4k 4096 232 0 232 6 5 1 1 0 8 1 mcl2k2 2112 12 0 12 7 6 1 1 0 8 1 mcl2k 2048 71457 0 71412 23 16 7 17 0 8 1 mtagpl 80 136 0 136 4 3 1 1 0 8 1 mbufpl 256 133423 0 133357 78 62 16 33 0 8 7 bufpl 256 17746 0 10003 485 0 485 485 0 8 0 anonpl 16 309733 0 291096 155 57 98 99 0 62 11 amapchunkpl 152 12760 0 12631 57 42 15 16 0 158 9 amappl16 192 13138 0 11992 144 85 59 69 0 8 1 amappl15 184 1514 0 1513 4 3 1 1 0 8 0 amappl14 176 309 0 300 1 0 1 1 0 8 0 amappl13 168 268 0 268 5 5 0 1 0 8 0 amappl12 160 161 0 158 1 0 1 1 0 8 0 amappl11 152 246 0 235 1 0 1 1 0 8 0 amappl10 144 137 0 136 2 1 1 1 0 8 0 amappl9 136 786 0 780 1 0 1 1 0 8 0 amappl8 128 333 0 295 3 1 2 2 0 8 0 amappl7 120 255 0 248 1 0 1 1 0 8 0 amappl6 112 247 0 233 1 0 1 1 0 8 0 amappl5 104 418 0 407 1 0 1 1 0 8 0 amappl4 96 2646 0 2619 1 0 1 1 0 8 0 amappl3 88 544 0 531 1 0 1 1 0 8 0 amappl2 80 17604 0 17531 3 1 2 3 0 8 0 amappl1 72 52369 0 51962 26 17 9 20 0 8 0 amappl 80 5394 0 5347 3 1 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 64 144 0 15 3 0 3 3 0 8 0 uaddrrnd 24 2346 0 2300 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 2346 0 2300 1 0 1 1 0 8 0 vmmpekpl 168 20552 0 20526 2 0 2 2 0 8 0 vmmpepl 168 288556 0 286265 290 147 143 144 0 357 36 vmsppl 272 2313 0 2300 4 3 1 2 0 8 0 pdppl 4096 4698 0 4649 8 1 7 7 0 8 0 pvpl 32 927116 0 906641 458 158 300 322 0 265 112 pmappl 200 2345 0 2317 3 1 2 2 0 8 0 extentpl 40 41 0 26 1 0 1 1 0 8 0 phpool 112 794 0 169 19 0 19 19 0 8 0