login: panic: receive 3: so 0xfffffd805e56b190, so_type 3, m 0xfffffd80692cfc00, m_type 0 Stopped at db_enter+0x18: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND * 87167 16933 0 0 0 0 dhclient db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic(ffffffff821bca50) at panic+0x15c sys/kern/subr_prf.c:207 soreceive(fffffd805e56b190,0,ffff80001d772a88,0,0,ffff80001d772994) at soreceive+0x16e7 soo_read(fffffd80629fd780,ffff80001d772a88,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff80001d739278,6,ffff80001d772a88,0,ffff80001d772b70) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff80001d739278,ffff80001d772b20,ffff80001d772b70) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff80001d772bf0) at syscall+0x507 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffff7b20, 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 receive 3: so 0xfffffd805e56b190, so_type 3, m 0xfffffd80692cfc00, m_type 0 ddb> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic(ffffffff821bca50) at panic+0x15c sys/kern/subr_prf.c:207 soreceive(fffffd805e56b190,0,ffff80001d772a88,0,0,ffff80001d772994) at soreceive+0x16e7 soo_read(fffffd80629fd780,ffff80001d772a88,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff80001d739278,6,ffff80001d772a88,0,ffff80001d772b70) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff80001d739278,ffff80001d772b20,ffff80001d772b70) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff80001d772bf0) at syscall+0x507 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffff7b20, count: -8 ddb> show registers rdi 0 rsi 0x1 rbp 0xffff80001d7727d0 rbx 0xffff80001d772880 rdx 0x2 rcx 0x1 rax 0x1 r8 0xffff80001d772790 r9 0x1 r10 0xd42edd746c654f3 r11 0xbeca1b9e39cd14e1 r12 0x3000000008 r13 0xffff80001d7727e0 r14 0x100 r15 0x1 rip 0xffffffff8199e508 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff80001d7727c0 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb> show proc PROC (dhclient) pid=87167 stat=onproc flags process=0 proc=0 pri=24, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff80001d73a868,0xffff80001d739018 process=0xffff8000ffffa010 user=0xffff80001d76d000, vmspace=0xfffffd806bc0a330 estcpu=0, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 80549 18022 41083 0 3 0x82 thrsleep syz-execprog 80549 85651 41083 0 3 0x4000082 thrsleep syz-execprog 80549 164940 41083 0 3 0x4000082 thrsleep syz-execprog 80549 259694 41083 0 3 0x4000082 thrsleep syz-execprog 80549 258809 41083 0 3 0x4000082 wait syz-execprog 80549 47372 41083 0 3 0x4000082 kqread syz-execprog 80549 181410 41083 0 3 0x4000082 thrsleep syz-execprog 80549 178850 41083 0 3 0x4000082 thrsleep syz-execprog 41083 429101 65291 0 3 0x10008a pause ksh 65291 181056 49907 0 3 0x92 select sshd 25872 462707 1 0 3 0x100083 ttyin getty 49907 50698 1 0 3 0x80 select sshd 51530 131340 47381 73 3 0x100090 kqread syslogd 47381 366237 1 0 3 0x100082 netio syslogd 42912 75087 1 77 2 0x100010 dhclient *16933 87167 1 0 7 0 dhclient 31538 458236 0 0 3 0x14200 bored smr 55448 222513 0 0 3 0x14200 pgzero zerothread 26960 384790 0 0 3 0x14200 aiodoned aiodoned 60019 487116 0 0 3 0x14200 syncer update 72220 46471 0 0 3 0x14200 cleaner cleaner 12789 45562 0 0 3 0x14200 reaper reaper 69433 267106 0 0 3 0x14200 pgdaemon pagedaemon 1882 8840 0 0 3 0x14200 bored crynlk 83716 433434 0 0 3 0x14200 bored crypto 18807 252991 0 0 3 0x40014200 acpi0 acpi0 8011 417353 0 0 2 0x14200 softnet 31363 201368 0 0 2 0x14200 systqmp 54121 382750 0 0 3 0x14200 bored systq 89050 398887 0 0 3 0x40014200 bored softclock 17233 265074 0 0 3 0x40014200 idle0 1 269618 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 9441 6321K 6321K 78643K 10540 0 pcb 13 8K 8K 78643K 13 0 rtable 61 1K 2K 78643K 155 0 ifaddr 24 7K 9K 78643K 33 0 counters 19 16K 16K 78643K 20 0 ioctlops 0 0K 2K 78643K 14 0 mount 1 1K 1K 78643K 1 0 vnodes 1182 74K 74K 78643K 1187 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 1K 78643K 2 0 VM map 2 0K 0K 78643K 2 0 sem 2 0K 0K 78643K 2 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1794 195K 288K 78643K 12646 0 file desc 2 4K 12K 78643K 18 0 proc 47 38K 54K 78643K 318 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 in_multi 11 0K 1K 78643K 22 0 ether_multi 1 0K 0K 78643K 1 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 19 95K 95K 78643K 19 0 exec 0 0K 1K 78643K 171 0 pagedep 1 8K 8K 78643K 1 0 inodedep 1 32K 32K 78643K 1 0 newblk 1 0K 0K 78643K 1 0 VM swap 7 26K 26K 78643K 7 0 UVM amap 68 11K 12K 78643K 853 0 UVM aobj 2 2K 2K 78643K 2 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 NDP 3 0K 0K 78643K 6 0 temp 18 3025K 3089K 78643K 1666 0 kqueue 3 4K 4K 78643K 3 0 SYN cache 2 16K 16K 78643K 2 0 ddb> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle arp 64 4 0 2 1 0 1 1 0 8 0 rtpcb 80 17 0 15 1 0 1 1 0 8 0 rtentry 112 34 0 12 1 0 1 1 0 8 0 unpcb 120 27 0 19 1 0 1 1 0 8 0 syncache 264 5 0 5 1 0 1 1 0 8 1 tcpcb 544 8 0 5 1 0 1 1 0 8 0 inpcb 280 27 0 21 1 0 1 1 0 8 0 nd6 48 3 0 3 1 0 1 1 0 8 1 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 144 0 0 9 0 9 9 0 8 0 art_table 32 145 0 0 2 0 2 2 0 8 0 art_node 16 33 0 3 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 1414 0 20 45 0 45 45 0 8 0 ffsino 240 1414 0 20 83 0 83 83 0 8 1 nchpl 144 1639 0 38 60 0 60 60 0 8 0 uvmvnodes 72 1423 0 0 26 0 26 26 0 8 0 vnodes 208 1423 0 0 75 0 75 75 0 8 0 namei 1024 3833 0 3833 1 0 1 1 0 8 1 scxspl 192 4353 0 4353 1 0 1 1 0 8 1 plimitpl 152 14 0 8 1 0 1 1 0 8 0 sigapl 424 212 0 186 4 0 4 4 0 8 0 knotepl 112 39 0 30 1 0 1 1 0 8 0 kqueuepl 144 2 0 0 1 0 1 1 0 8 0 pipelkpl 16 67 0 61 1 0 1 1 0 8 0 pipepl 120 134 0 123 1 0 1 1 0 8 0 fdescpl 432 198 0 186 2 0 2 2 0 8 0 filepl 120 964 0 913 2 0 2 2 0 8 0 lockfpl 104 5 0 4 1 0 1 1 0 8 0 lockfspl 48 3 0 2 1 0 1 1 0 8 0 sessionpl 112 18 0 9 1 0 1 1 0 8 0 pgrppl 48 18 0 9 1 0 1 1 0 8 0 ucredpl 96 47 0 40 1 0 1 1 0 8 0 zombiepl 144 187 0 186 1 0 1 1 0 8 0 processpl 920 212 0 186 4 0 4 4 0 8 0 procpl 624 219 0 186 3 0 3 3 0 8 0 sockpl 400 71 0 55 2 0 2 2 0 8 0 mcl4k 4096 10 0 10 1 0 1 1 0 8 1 mcl2k 2048 5513 0 5480 8 2 6 8 0 8 1 mtagpl 80 2 0 2 1 1 0 1 0 8 0 mbufpl 256 9572 0 9487 8 1 7 7 0 8 0 bufpl 280 3649 0 161 250 0 250 250 0 8 0 anonpl 16 20939 0 19490 14 1 13 13 0 107 6 amapchunkpl 152 829 0 768 5 0 5 5 0 158 2 amappl16 192 119 0 92 2 0 2 2 0 8 0 amappl15 184 2 0 0 1 0 1 1 0 8 0 amappl14 176 2 0 1 2 1 1 1 0 8 0 amappl13 168 26 0 24 1 0 1 1 0 8 0 amappl12 160 9 0 7 1 0 1 1 0 8 0 amappl11 152 65 0 52 1 0 1 1 0 8 0 amappl10 144 15 0 11 1 0 1 1 0 8 0 amappl9 136 226 0 224 1 0 1 1 0 8 0 amappl8 128 230 0 224 1 0 1 1 0 8 0 amappl7 120 101 0 92 1 0 1 1 0 8 0 amappl6 112 21 0 17 1 0 1 1 0 8 0 amappl5 104 135 0 125 1 0 1 1 0 8 0 amappl4 96 443 0 418 1 0 1 1 0 8 0 amappl3 88 111 0 106 1 0 1 1 0 8 0 amappl2 80 830 0 777 3 0 3 3 0 8 1 amappl1 72 13514 0 13131 26 9 17 20 0 8 8 amappl 80 431 0 406 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 18 0 17 1 0 1 1 0 8 0 aobjpl 64 1 0 0 1 0 1 1 0 8 0 uaddrrnd 24 198 0 186 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 198 0 186 1 0 1 1 0 8 0 vmmpekpl 168 6041 0 6021 1 0 1 1 0 8 0 vmmpepl 168 29011 0 28183 81 5 76 76 0 357 37 vmsppl 272 197 0 186 1 0 1 1 0 8 0 pdppl 4096 402 0 372 5 0 5 5 0 8 0 pvpl 32 103821 0 100143 113 0 113 113 0 265 81 pmappl 200 197 0 186 1 0 1 1 0 8 0 extentpl 40 46 0 29 1 0 1 1 0 8 0 phpool 112 128 0 5 4 0 4 4 0 8 0 ddb>