login: panic: receive 1a: so 0xfffffd805e4d3600, so_type 3, m 0xfffffd80698e3c00, m_type 0 Stopped at db_enter+0x18: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *202171 88266 0 0 0 0 dhclient db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic(ffffffff8219a5ac) at panic+0x15c sys/kern/subr_prf.c:207 soreceive(fffffd805e4d3600,0,ffff80001d37ead8,0,0,ffff80001d37e9e4) at soreceive+0x170a sys/kern/uipc_socket.c:966 soo_read(fffffd80619ef348,ffff80001d37ead8,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff8000ffff84f8,6,ffff80001d37ead8,0,ffff80001d37ebc0) at dofilereadv+0x1a2 sys/kern/sys_generic.c:236 sys_read(ffff8000ffff84f8,ffff80001d37eb70,ffff80001d37ebc0) at sys_read+0x83 sys/kern/sys_generic.c:156 syscall(ffff80001d37ec40) at syscall+0x507 sys/arch/amd64/amd64/trap.c:555 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffbefe0, 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 0xfffffd805e4d3600, so_type 3, m 0xfffffd80698e3c00, m_type 0 ddb> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic(ffffffff8219a5ac) at panic+0x15c sys/kern/subr_prf.c:207 soreceive(fffffd805e4d3600,0,ffff80001d37ead8,0,0,ffff80001d37e9e4) at soreceive+0x170a sys/kern/uipc_socket.c:966 soo_read(fffffd80619ef348,ffff80001d37ead8,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff8000ffff84f8,6,ffff80001d37ead8,0,ffff80001d37ebc0) at dofilereadv+0x1a2 sys/kern/sys_generic.c:236 sys_read(ffff8000ffff84f8,ffff80001d37eb70,ffff80001d37ebc0) at sys_read+0x83 sys/kern/sys_generic.c:156 syscall(ffff80001d37ec40) at syscall+0x507 sys/arch/amd64/amd64/trap.c:555 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffbefe0, count: -8 ddb> show registers rdi 0 rsi 0x1 rbp 0xffff80001d37e820 rbx 0xffff80001d37e8d0 rdx 0x2 rcx 0x1 rax 0x1 r8 0xffff80001d37e7e0 r9 0x1 r10 0x885d296a4c550aac r11 0xe1a32f630344ef36 r12 0x3000000008 r13 0xffff80001d37e830 r14 0x100 r15 0x1 rip 0xffffffff81afe868 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff80001d37e810 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb> show proc PROC (dhclient) pid=202171 stat=onproc flags process=0 proc=0 pri=50, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff8000ffff9150,0xffff8000ffff8c70 process=0xffff8000ffff66d0 user=0xffff80001d379000, vmspace=0xfffffd806bc0a330 estcpu=0, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 81554 392576 54725 0 3 0x82 thrsleep syz-execprog 81554 334300 54725 0 3 0x4000082 nanosleep syz-execprog 81554 338298 54725 0 3 0x4000082 thrsleep syz-execprog 81554 309239 54725 0 3 0x4000082 thrsleep syz-execprog 81554 302672 54725 0 3 0x4000082 wait syz-execprog 81554 251453 54725 0 3 0x4000082 thrsleep syz-execprog 81554 131648 54725 0 3 0x4000082 thrsleep syz-execprog 54725 350777 48342 0 3 0x10008a pause ksh 48342 276126 75069 0 3 0x92 select sshd 60219 60098 1 0 3 0x100083 ttyin getty 75069 383491 1 0 3 0x80 select sshd 22030 372447 65189 73 3 0x100090 kqread syslogd 65189 105928 1 0 3 0x100082 netio syslogd 75853 46442 1 77 2 0x100010 dhclient *88266 202171 1 0 7 0 dhclient 82013 311584 0 0 3 0x14200 pgzero zerothread 59946 523854 0 0 3 0x14200 aiodoned aiodoned 69886 319051 0 0 3 0x14200 syncer update 11616 514930 0 0 3 0x14200 cleaner cleaner 3422 360384 0 0 3 0x14200 reaper reaper 40251 493012 0 0 3 0x14200 pgdaemon pagedaemon 76226 102828 0 0 3 0x14200 bored crynlk 99509 484623 0 0 3 0x14200 bored crypto 80969 85868 0 0 3 0x40014200 acpi0 acpi0 94435 261659 0 0 2 0x14200 softnet 16323 389165 0 0 2 0x14200 systqmp 91139 85896 0 0 3 0x14200 bored systq 5986 266956 0 0 3 0x40014200 bored softclock 68955 33233 0 0 3 0x40014200 idle0 88901 290227 0 0 3 0x14200 bored smr 1 205591 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 9440 6321K 6321K 78643K 10539 0 pcb 13 8K 8K 78643K 13 0 rtable 63 1K 2K 78643K 157 0 ifaddr 24 7K 9K 78643K 33 0 counters 19 16K 16K 78643K 19 0 ioctlops 0 0K 2K 78643K 14 0 mount 1 1K 1K 78643K 1 0 vnodes 1180 74K 74K 78643K 1185 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 74 11K 12K 78643K 872 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 2993K 3057K 78643K 3055 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 11 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 2 0 2 1 0 1 1 0 8 1 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 167 0 0 11 0 11 11 0 8 0 art_table 32 168 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 1415 0 20 46 0 46 46 0 8 1 ffsino 240 1415 0 20 83 0 83 83 0 8 0 nchpl 144 1640 0 38 60 0 60 60 0 8 0 uvmvnodes 72 1424 0 0 26 0 26 26 0 8 0 vnodes 208 1424 0 0 75 0 75 75 0 8 0 namei 1024 3864 0 3864 1 0 1 1 0 8 1 scxspl 192 4019 0 4019 1 0 1 1 0 8 1 plimitpl 152 14 0 8 1 0 1 1 0 8 0 sigapl 432 197 0 186 2 0 2 2 0 8 0 knotepl 112 39 0 28 1 0 1 1 0 8 0 kqueuepl 104 2 0 0 1 0 1 1 0 8 0 pipepl 112 134 0 122 1 0 1 1 0 8 0 fdescpl 432 198 0 186 2 0 2 2 0 8 0 filepl 120 998 0 946 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 864 212 0 186 4 0 4 4 0 8 0 procpl 632 218 0 186 3 0 3 3 0 8 0 sockpl 384 71 0 55 2 0 2 2 0 8 0 mcl4k 4096 10 0 10 1 0 1 1 0 8 1 mcl2k 2048 5509 0 5472 8 3 5 8 0 8 0 mtagpl 80 2 0 2 1 1 0 1 0 8 0 mbufpl 256 9576 0 9491 10 3 7 7 0 8 0 bufpl 280 5849 0 1326 324 0 324 324 0 8 0 anonpl 16 20599 0 19133 14 1 13 13 0 107 6 amapchunkpl 152 732 0 671 5 0 5 5 0 158 2 amappl16 192 82 0 60 2 0 2 2 0 8 0 amappl15 184 52 0 47 1 0 1 1 0 8 0 amappl14 176 25 0 21 1 0 1 1 0 8 0 amappl13 168 1 0 0 1 0 1 1 0 8 0 amappl12 160 7 0 5 1 0 1 1 0 8 0 amappl11 152 43 0 32 1 0 1 1 0 8 0 amappl10 144 11 0 9 1 0 1 1 0 8 0 amappl9 136 393 0 391 1 0 1 1 0 8 0 amappl8 128 84 0 75 1 0 1 1 0 8 0 amappl7 120 87 0 78 1 0 1 1 0 8 0 amappl6 112 55 0 50 1 0 1 1 0 8 0 amappl5 104 134 0 124 1 0 1 1 0 8 0 amappl4 96 427 0 403 1 0 1 1 0 8 0 amappl3 88 123 0 116 1 0 1 1 0 8 0 amappl2 80 847 0 789 3 0 3 3 0 8 1 amappl1 72 13669 0 13269 26 8 18 20 0 8 8 amappl 80 425 0 400 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 6055 0 6040 1 0 1 1 0 8 0 vmmpepl 168 29702 0 28834 85 7 78 78 0 357 39 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 104056 0 100328 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 112 127 0 8 4 0 4 4 0 8 0 ddb>