login: panic: receive 1a: so 0xfffffd8066a2d190, so_type 3, m 0xfffffd805af79f00, m_type 0 Stopped at db_enter+0x18: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *216369 87693 0 0 0 0 dhclient db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic(ffffffff821c3995) at panic+0x15c sys/kern/subr_prf.c:207 soreceive(fffffd8066a2d190,0,ffff80001d772b38,0,0,ffff80001d772a44) at soreceive+0x170a sys/kern/uipc_socket.c:977 soo_read(fffffd8065934780,ffff80001d772b38,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff80001d7394e8,6,ffff80001d772b38,0,ffff80001d772c20) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff80001d7394e8,ffff80001d772bd0,ffff80001d772c20) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff80001d772ca0) at syscall+0x507 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffe38d0, 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 1a: so 0xfffffd8066a2d190, so_type 3, m 0xfffffd805af79f00, m_type 0 ddb> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic(ffffffff821c3995) at panic+0x15c sys/kern/subr_prf.c:207 soreceive(fffffd8066a2d190,0,ffff80001d772b38,0,0,ffff80001d772a44) at soreceive+0x170a sys/kern/uipc_socket.c:977 soo_read(fffffd8065934780,ffff80001d772b38,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff80001d7394e8,6,ffff80001d772b38,0,ffff80001d772c20) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff80001d7394e8,ffff80001d772bd0,ffff80001d772c20) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff80001d772ca0) at syscall+0x507 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffe38d0, count: -8 ddb> show registers rdi 0 rsi 0x1 rbp 0xffff80001d772880 rbx 0xffff80001d772930 rdx 0x2 rcx 0x1 rax 0x1 r8 0xffff80001d772840 r9 0x1 r10 0x18899e14418d8b96 r11 0xd2328f6b75b25bcd r12 0x3000000008 r13 0xffff80001d772890 r14 0x100 r15 0x1 rip 0xffffffff8208b3d8 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff80001d772870 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb> show proc PROC (dhclient) pid=216369 stat=onproc flags process=0 proc=0 pri=24, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff80001d73a5f8,0xffff80001d739768 process=0xffff8000ffffa740 user=0xffff80001d76d000, vmspace=0xfffffd806bc0a000 estcpu=0, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 22150 102850 42208 0 3 0x82 thrsleep syz-execprog 22150 159888 42208 0 3 0x4000082 thrsleep syz-execprog 22150 70199 42208 0 3 0x4000082 thrsleep syz-execprog 22150 274308 42208 0 3 0x4000082 thrsleep syz-execprog 22150 34295 42208 0 3 0x4000082 wait syz-execprog 22150 407771 42208 0 3 0x4000082 kqread syz-execprog 22150 253937 42208 0 3 0x4000082 thrsleep syz-execprog 42208 519214 11409 0 3 0x10008a pause ksh 11409 316592 11837 0 3 0x92 select sshd 6348 53081 1 0 3 0x100083 ttyin getty 11837 394288 1 0 3 0x80 select sshd 2428 204152 59240 73 3 0x100090 kqread syslogd 59240 241243 1 0 3 0x100082 netio syslogd 19445 475952 1 77 2 0x100010 dhclient *87693 216369 1 0 7 0 dhclient 57419 294964 0 0 3 0x14200 bored smr 21571 452388 0 0 3 0x14200 pgzero zerothread 1408 99886 0 0 3 0x14200 aiodoned aiodoned 75010 117916 0 0 3 0x14200 syncer update 87220 37880 0 0 3 0x14200 cleaner cleaner 23619 290559 0 0 3 0x14200 reaper reaper 34816 267043 0 0 3 0x14200 pgdaemon pagedaemon 702 7633 0 0 3 0x14200 bored crynlk 51267 189753 0 0 3 0x14200 bored crypto 6168 21671 0 0 3 0x40014200 acpi0 acpi0 28909 34961 0 0 2 0x14200 softnet 20351 480027 0 0 2 0x14200 systqmp 62007 206598 0 0 3 0x14200 bored systq 68594 499253 0 0 3 0x40014200 bored softclock 22187 500816 0 0 3 0x40014200 idle0 1 238300 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 67 11K 12K 78643K 840 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 3029K 3093K 78643K 1678 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 tcpqe 32 7 0 7 1 1 0 1 0 8 0 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 dino2pl 256 1414 0 20 88 0 88 88 0 8 0 ffsino 240 1414 0 20 83 0 83 83 0 8 1 nchpl 144 1638 0 37 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 3872 0 3872 1 0 1 1 0 8 1 scxspl 192 4409 0 4409 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 120 965 0 914 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 57 0 50 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 624 218 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 5558 0 5523 8 3 5 8 0 8 0 mtagpl 80 2 0 2 1 1 0 1 0 8 0 mbufpl 256 9684 0 9601 9 2 7 7 0 8 0 bufpl 280 3721 0 183 253 0 253 253 0 8 0 anonpl 16 20379 0 18897 15 2 13 13 0 107 6 amapchunkpl 152 778 0 717 5 0 5 5 0 158 2 amappl16 192 127 0 98 2 0 2 2 0 8 0 amappl15 184 9 0 7 1 0 1 1 0 8 0 amappl14 176 28 0 22 1 0 1 1 0 8 0 amappl13 168 18 0 17 1 0 1 1 0 8 0 amappl12 160 13 0 10 1 0 1 1 0 8 0 amappl11 152 42 0 33 1 0 1 1 0 8 0 amappl10 144 12 0 10 1 0 1 1 0 8 0 amappl9 136 210 0 209 1 0 1 1 0 8 0 amappl8 128 233 0 226 1 0 1 1 0 8 0 amappl7 120 99 0 90 1 0 1 1 0 8 0 amappl6 112 23 0 20 1 0 1 1 0 8 0 amappl5 104 160 0 151 1 0 1 1 0 8 0 amappl4 96 427 0 405 1 0 1 1 0 8 0 amappl3 88 111 0 105 1 0 1 1 0 8 0 amappl2 80 832 0 778 3 0 3 3 0 8 1 amappl1 72 13561 0 13163 26 8 18 20 0 8 8 amappl 80 420 0 395 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 6074 0 6054 1 0 1 1 0 8 0 vmmpepl 168 29291 0 28449 83 6 77 77 0 357 38 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 103711 0 99998 113 0 113 113 0 265 82 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 112 217 0 7 6 0 6 6 0 8 0 ddb>