login: panic: receive 3: so 0xfffffd805e568000, so_type 3, m 0xfffffd8061d60500, m_type 0 Stopped at db_enter+0x18: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *420542 29287 0 0 0 0 dhclient db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic(ffffffff821b1580) at panic+0x15c sys/kern/subr_prf.c:207 soreceive(fffffd805e568000,0,ffff80001d372a18,0,0,ffff80001d372924) at soreceive+0x16e7 soo_read(fffffd80619f13c0,ffff80001d372a18,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff80001d339008,6,ffff80001d372a18,0,ffff80001d372b00) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff80001d339008,ffff80001d372ab0,ffff80001d372b00) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff80001d372b80) at syscall+0x507 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffff27e0, 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 0xfffffd805e568000, so_type 3, m 0xfffffd8061d60500, m_type 0 ddb> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic(ffffffff821b1580) at panic+0x15c sys/kern/subr_prf.c:207 soreceive(fffffd805e568000,0,ffff80001d372a18,0,0,ffff80001d372924) at soreceive+0x16e7 soo_read(fffffd80619f13c0,ffff80001d372a18,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff80001d339008,6,ffff80001d372a18,0,ffff80001d372b00) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff80001d339008,ffff80001d372ab0,ffff80001d372b00) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff80001d372b80) at syscall+0x507 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffff27e0, count: -8 ddb> show registers rdi 0 rsi 0x1 rbp 0xffff80001d372760 rbx 0xffff80001d372810 rdx 0x2 rcx 0x1 rax 0x1 r8 0xffff80001d372720 r9 0x1 r10 0xacfb1623870f258a r11 0x89adcf6f26c816c3 r12 0x3000000008 r13 0xffff80001d372770 r14 0x100 r15 0x1 rip 0xffffffff818dd118 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff80001d372750 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb> show proc PROC (dhclient) pid=420542 stat=onproc flags process=0 proc=0 pri=24, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff80001d339ea8,0xffff80001d3394f8 process=0xffff8000ffffa010 user=0xffff80001d36d000, vmspace=0xfffffd806bc09220 estcpu=0, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 76204 176443 39285 0 3 0x82 wait syz-execprog 76204 265271 39285 0 3 0x4000082 thrsleep syz-execprog 76204 227936 39285 0 3 0x4000082 thrsleep syz-execprog 76204 178392 39285 0 3 0x4000082 thrsleep syz-execprog 76204 143555 39285 0 3 0x4000082 thrsleep syz-execprog 76204 330472 39285 0 3 0x4000082 kqread syz-execprog 76204 51862 39285 0 3 0x4000082 thrsleep syz-execprog 39285 380063 50641 0 3 0x10008a pause ksh 50641 17326 85581 0 3 0x92 select sshd 74282 132052 1 0 3 0x100083 ttyin getty 85581 247712 1 0 3 0x80 select sshd 45797 336393 95104 73 3 0x100090 kqread syslogd 95104 372108 1 0 3 0x100082 netio syslogd 32385 132150 1 77 2 0x100010 dhclient *29287 420542 1 0 7 0 dhclient 11991 100186 0 0 3 0x14200 bored smr 23795 505469 0 0 3 0x14200 pgzero zerothread 69681 386276 0 0 3 0x14200 aiodoned aiodoned 87058 290429 0 0 3 0x14200 syncer update 52246 431627 0 0 3 0x14200 cleaner cleaner 54709 393460 0 0 3 0x14200 reaper reaper 86721 197678 0 0 3 0x14200 pgdaemon pagedaemon 75453 423471 0 0 3 0x14200 bored crynlk 78213 195122 0 0 3 0x14200 bored crypto 38514 27228 0 0 3 0x40014200 acpi0 acpi0 18146 456740 0 0 2 0x14200 softnet 89946 379595 0 0 2 0x14200 systqmp 5985 382084 0 0 3 0x14200 bored systq 66117 339550 0 0 3 0x40014200 bored softclock 83922 459810 0 0 3 0x40014200 idle0 1 56013 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 65 11K 11K 78643K 856 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 3005K 3069K 78643K 1665 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 4343 0 4343 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 896 212 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 5510 0 5482 6 2 4 6 0 8 0 mtagpl 80 2 0 2 1 1 0 1 0 8 0 mbufpl 256 9665 0 9588 10 3 7 7 0 8 0 bufpl 280 3648 0 161 250 0 250 250 0 8 0 anonpl 16 21208 0 19762 15 2 13 13 0 107 7 amapchunkpl 152 796 0 735 5 0 5 5 0 158 2 amappl16 192 130 0 105 2 0 2 2 0 8 0 amappl15 184 1 0 0 1 0 1 1 0 8 0 amappl14 176 4 0 2 2 1 1 1 0 8 0 amappl13 168 19 0 18 1 0 1 1 0 8 0 amappl12 160 8 0 5 1 0 1 1 0 8 0 amappl11 152 66 0 54 1 0 1 1 0 8 0 amappl10 144 15 0 12 1 0 1 1 0 8 0 amappl9 136 226 0 224 1 0 1 1 0 8 0 amappl8 128 229 0 223 1 0 1 1 0 8 0 amappl7 120 103 0 93 1 0 1 1 0 8 0 amappl6 112 22 0 19 2 1 1 1 0 8 0 amappl5 104 133 0 124 1 0 1 1 0 8 0 amappl4 96 448 0 421 1 0 1 1 0 8 0 amappl3 88 115 0 107 1 0 1 1 0 8 0 amappl2 80 830 0 775 3 0 3 3 0 8 1 amappl1 72 13579 0 13194 27 10 17 20 0 8 8 amappl 80 437 0 412 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 6035 0 6015 1 0 1 1 0 8 0 vmmpepl 168 29025 0 28195 86 10 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 104372 0 100692 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 112 128 0 7 4 0 4 4 0 8 0 ddb>