panic() at panic+0x15c sys/kern/subr_prf.c:207 ifa_update_broadaddr(ffff800000ab3000,ffff800000a93b00,ffff800014d2fd90) at ifa_update_broadaddr+0x61 sys/net/if.c:2970 in_ioctl(80206913,ffff800014d2fd80,ffff800000ab3000,1) at in_ioctl+0x463 sys/netinet/in.c:299 ifioctl(fffffd803e26c780,80206913,ffff800014d2fd80,ffff8000ffff33d8) at ifioctl+0xb34 sys/net/if.c:2202 sys_ioctl(ffff8000ffff33d8,ffff800014d2fe98,ffff800014d2fee0) at sys_ioctl+0x5b9 syscall(ffff800014d2ff60) at syscall+0x507 sys/arch/amd64/amd64/trap.c:555 Xsyscall(6,0,ffffffffffffff36,0,3,61a0357a010) at Xsyscall+0x128 end of kernel end trace frame: 0x61c108d1910, 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(ffff800000ab3000,ffff800000a93b00,ffff800014d2fd90) at ifa_update_broadaddr+0x61 sys/net/if.c:2970 in_ioctl(80206913,ffff800014d2fd80,ffff800000ab3000,1) at in_ioctl+0x463 sys/netinet/in.c:299 ifioctl(fffffd803e26c780,80206913,ffff800014d2fd80,ffff8000ffff33d8) at ifioctl+0xb34 sys/net/if.c:2202 sys_ioctl(ffff8000ffff33d8,ffff800014d2fe98,ffff800014d2fee0) at sys_ioctl+0x5b9 syscall(ffff800014d2ff60) at syscall+0x507 sys/arch/amd64/amd64/trap.c:555 Xsyscall(6,0,ffffffffffffff36,0,3,61a0357a010) at Xsyscall+0x128 end of kernel end trace frame: 0x61c108d1910, count: -8 ddb> show registers rdi 0xffffffff82076537 db_enter+0x17 rsi 0x490c __ALIGN_SIZE+0x390c rbp 0xffff800014d2fb20 rbx 0xffff800014d2fbd0 rdx 0x490d __ALIGN_SIZE+0x390d rcx 0xffff800017b45000 rax 0xffff800017b45000 r8 0xffff800014d2fae0 r9 0x1 r10 0xffff800000aafec0 r11 0xfd15a7f4ee9c9b4d r12 0x3000000008 r13 0xffff800014d2fb30 r14 0x100 r15 0x1 rip 0xffffffff82076538 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff800014d2fb10 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb> show proc PROC (syz-executor.0) pid=343118 stat=onproc flags process=0 proc=4000000 pri=73, usrpri=73, nice=20 forw=0xffffffffffffffff, list=0xffff8000ffff3650,0xffffffff82565f08 process=0xffff8000ffff70f0 user=0xffff800014d2b000, vmspace=0xfffffd803f014bb0 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 96840 518346 43342 0 2 0 syz-executor.0 *96840 343118 43342 0 7 0x4000000 syz-executor.0 72239 385548 29018 0 2 0x482 syz-executor.1 43342 334659 29018 0 2 0x482 syz-executor.0 44027 327322 0 0 3 0x14200 bored sosplice 29018 371149 20964 0 3 0x82 thrsleep syz-fuzzer 29018 456978 20964 0 3 0x4000082 thrsleep syz-fuzzer 29018 447926 20964 0 3 0x4000082 thrsleep syz-fuzzer 29018 449086 20964 0 3 0x4000082 thrsleep syz-fuzzer 29018 351873 20964 0 3 0x4000082 kqread syz-fuzzer 29018 159097 20964 0 3 0x4000082 thrsleep syz-fuzzer 29018 509345 20964 0 3 0x4000082 thrsleep syz-fuzzer 29018 187988 20964 0 3 0x4000082 thrsleep syz-fuzzer 20964 339009 35683 0 3 0x10008a pause ksh 35683 279557 55361 0 3 0x92 select sshd 36057 492739 1 0 3 0x100083 ttyin getty 55361 99744 1 0 3 0x80 select sshd 27908 141464 95292 73 3 0x100090 kqread syslogd 95292 136825 1 0 3 0x100082 netio syslogd 31003 41671 1 77 3 0x100090 poll dhclient 72775 12119 1 0 3 0x80 poll dhclient 14194 160454 0 0 2 0x14200 zerothread 67126 491510 0 0 3 0x14200 aiodoned aiodoned 19128 50255 0 0 3 0x14200 syncer update 67933 6917 0 0 3 0x14200 cleaner cleaner 29409 490262 0 0 3 0x14200 reaper reaper 83449 345711 0 0 3 0x14200 pgdaemon pagedaemon 69929 208824 0 0 3 0x14200 bored crynlk 5439 166874 0 0 3 0x14200 bored crypto 54755 329675 0 0 3 0x40014200 acpi0 acpi0 58416 176340 0 0 3 0x14200 bored softnet 80308 81315 0 0 3 0x14200 bored systqmp 93176 430694 0 0 3 0x14200 bored systq 79080 435754 0 0 2 0x40014200 softclock 85993 327767 0 0 3 0x40014200 idle0 25376 190639 0 0 3 0x14200 bored smr 1 55531 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 9511 6595K 7109K 78643K 12644 0 0 pcb 13 12K 14K 78643K 131 0 0 rtable 103 4K 4K 78643K 412 0 0 ifaddr 54 12K 13K 78643K 110 0 0 counters 19 16K 16K 78643K 19 0 0 ioctlops 0 0K 2K 78643K 69 0 0 iov 0 0K 16K 78643K 76 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1222 77K 77K 78643K 1995 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 18 0 0 VM map 2 0K 0K 78643K 4 0 0 sem 12 0K 1K 78643K 309 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1793 195K 288K 78643K 12645 0 0 file desc 5 13K 25K 78643K 768 0 0 sigio 0 0K 0K 78643K 12 0 0 proc 49 38K 63K 78643K 486 0 0 subproc 32 2K 2K 78643K 68 0 0 NFS srvsock 1 0K 0K 78643K 1 0 0 NFS daemon 1 16K 16K 78643K 1 0 0 ip_moptions 0 0K 1K 78643K 1240 0 0 in_multi 29 1K 2K 78643K 349 0 0 ether_multi 1 0K 0K 78643K 6 0 0 mrt 0 0K 0K 78643K 5 0 0 ISOFS mount 1 32K 32K 78643K 1 0 0 MSDOSFS mount 1 16K 16K 78643K 1 0 0 ttys 60 265K 265K 78643K 60 0 0 exec 0 0K 1K 78643K 281 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 93 21K 30K 78643K 2676 0 0 UVM aobj 33 2K 2K 78643K 41 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 133 0 0 NDP 11 0K 0K 78643K 32 0 0 temp 162 3531K 3602K 78643K 16562 0 0 kqueue 0 0K 0K 78643K 15 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 10 0 6 1 0 1 1 0 8 0 rtpcb 80 106 0 104 1 0 1 1 0 8 0 rtentry 112 76 0 36 2 0 2 2 0 8 0 unpcb 120 810 0 799 3 2 1 2 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpqe 32 7578 0 7578 1 1 0 1 0 8 0 tcpcb 544 1045 0 1038 28 21 7 15 0 8 6 inpcb 280 2395 0 2387 20 13 7 13 0 8 6 rttmr 72 1 0 1 1 1 0 1 0 8 0 nd6 48 9 0 6 1 0 1 1 0 8 0 pkpcb 40 8 0 8 1 1 0 1 0 8 0 ppxss 1128 9 0 9 3 2 1 1 0 8 1 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 365 0 163 16 1 15 15 0 8 0 art_table 32 366 0 163 2 0 2 2 0 8 0 art_node 16 75 0 38 1 0 1 1 0 8 0 sysvmsgpl 40 20 0 11 1 0 1 1 0 8 0 semapl 112 300 0 290 1 0 1 1 0 8 0 shmpl 112 39 0 8 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 2537 0 1137 46 0 46 46 0 8 0 ffsino 240 2537 0 1137 83 0 83 83 0 8 0 nchpl 144 3901 0 2307 60 0 60 60 0 8 0 uvmvnodes 72 3171 0 0 58 0 58 58 0 8 0 vnodes 208 3171 0 0 167 0 167 167 0 8 0 namei 1024 11642 0 11642 3 2 1 1 0 8 1 vmpool 520 2 0 2 1 1 0 1 0 8 0 scxspl 192 10600 0 10600 11 8 3 7 0 8 3 plimitpl 152 81 0 74 1 0 1 1 0 8 0 sigapl 432 933 0 920 2 0 2 2 0 8 0 futexpl 56 21439 0 21439 1 0 1 1 0 8 1 knotepl 112 282 0 263 4 3 1 3 0 8 0 kqueuepl 104 434 0 432 7 5 2 4 0 8 1 pipepl 112 560 0 541 4 3 1 2 0 8 0 fdescpl 424 934 0 920 2 0 2 2 0 8 0 filepl 120 8370 0 8274 17 8 9 11 0 8 6 lockfpl 104 281 0 280 1 0 1 1 0 8 0 lockfspl 48 85 0 84 1 0 1 1 0 8 0 sessionpl 112 19 0 9 1 0 1 1 0 8 0 pgrppl 48 23 0 13 1 0 1 1 0 8 0 ucredpl 96 1009 0 1002 1 0 1 1 0 8 0 zombiepl 144 920 0 919 3 2 1 1 0 8 0 processpl 864 949 0 919 4 0 4 4 0 8 0 procpl 632 1908 0 1870 4 0 4 4 0 8 0 sosppl 128 10 0 10 2 1 1 1 0 8 1 sockpl 384 3331 0 3310 35 26 9 22 0 8 6 mcl64k 65536 21 0 21 4 3 1 1 0 8 1 mcl16k 16384 7 0 7 3 2 1 1 0 8 1 mcl12k 12288 18 0 18 2 1 1 1 0 8 1 mcl9k 9216 9 0 9 2 2 0 1 0 8 0 mcl8k 8192 23 0 23 1 0 1 1 0 8 1 mcl4k 4096 79 0 79 2 1 1 1 0 8 1 mcl2k2 2112 5 0 5 2 2 0 1 0 8 0 mcl2k 2048 52065 0 52019 26 19 7 21 0 8 0 mtagpl 80 39 0 25 2 1 1 1 0 8 0 mbufpl 256 90222 0 90084 17 7 10 12 0 8 1 bufpl 256 7743 0 2612 321 0 321 321 0 8 0 anonpl 16 93443 0 78523 92 16 76 76 0 62 14 amapchunkpl 152 4124 0 4017 16 10 6 12 0 158 1 amappl16 192 4316 0 3448 64 12 52 55 0 8 8 amappl15 184 133 0 131 2 1 1 1 0 8 0 amappl14 176 178 0 177 2 1 1 1 0 8 0 amappl13 168 1 0 0 1 0 1 1 0 8 0 amappl12 160 11 0 8 1 0 1 1 0 8 0 amappl11 152 559 0 546 1 0 1 1 0 8 0 amappl10 144 14 0 14 1 1 0 1 0 8 0 amappl9 136 602 0 596 1 0 1 1 0 8 0 amappl8 128 174 0 152 1 0 1 1 0 8 0 amappl7 120 43 0 38 1 0 1 1 0 8 0 amappl6 112 565 0 555 1 0 1 1 0 8 0 amappl5 104 159 0 149 1 0 1 1 0 8 0 amappl4 96 1147 0 1121 1 0 1 1 0 8 0 amappl3 88 279 0 273 1 0 1 1 0 8 0 amappl2 80 6610 0 6543 4 2 2 3 0 8 0 amappl1 72 26236 0 25832 28 19 9 20 0 8 0 amappl 80 2154 0 2118 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 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 40 0 8 1 0 1 1 0 8 0 uaddrrnd 24 936 0 920 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 936 0 920 1 0 1 1 0 8 0 vmmpekpl 168 10044 0 10019 2 0 2 2 0 8 0 vmmpepl 168 116055 0 114159 176 63 113 115 0 357 28 vmsppl 272 933 0 920 2 1 1 2 0 8 0 pdppl 4096 1878 0 1844 6 1 5 6 0 8 0 pvpl 32 273213 0 255285 232 52 180 180 0 265 31 pmappl 200 935 0 922 1 0 1 1 0 8 0 extentpl 40 41 0 26 1 0 1 1 0 8 0 phpool 112 518 0 60 14 0 14 14 0 8 0