login: panic: receive 1a: so 0xfffffd805e5624b0, so_type 3, m 0xfffffd805c19c200, m_type 0 Stopped at db_enter+0x18: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *194370 78729 0 0 0 0 dhclient db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic(ffffffff821b762a) at panic+0x15c sys/kern/subr_prf.c:207 soreceive(fffffd805e5624b0,0,ffff80001d3720d8,0,0,ffff80001d371fe4) at soreceive+0x170a sys/kern/uipc_socket.c:977 soo_read(fffffd805eb102d0,ffff80001d3720d8,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff80001d339008,6,ffff80001d3720d8,0,ffff80001d3721c0) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff80001d339008,ffff80001d372170,ffff80001d3721c0) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff80001d372240) at syscall+0x507 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffff9fe0, 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 0xfffffd805e5624b0, so_type 3, m 0xfffffd805c19c200, m_type 0 ddb> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic(ffffffff821b762a) at panic+0x15c sys/kern/subr_prf.c:207 soreceive(fffffd805e5624b0,0,ffff80001d3720d8,0,0,ffff80001d371fe4) at soreceive+0x170a sys/kern/uipc_socket.c:977 soo_read(fffffd805eb102d0,ffff80001d3720d8,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff80001d339008,6,ffff80001d3720d8,0,ffff80001d3721c0) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff80001d339008,ffff80001d372170,ffff80001d3721c0) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff80001d372240) at syscall+0x507 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffff9fe0, count: -8 ddb> show registers rdi 0 rsi 0x1 rbp 0xffff80001d371e20 rbx 0xffff80001d371ed0 rdx 0x2 rcx 0x1 rax 0x1 r8 0xffff80001d371de0 r9 0x1 r10 0x4979ae570b999887 r11 0xed2665519a995ce6 r12 0x3000000008 r13 0xffff80001d371e30 r14 0x100 r15 0x1 rip 0xffffffff81704528 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff80001d371e10 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb> show proc PROC (dhclient) pid=194370 stat=onproc flags process=0 proc=0 pri=24, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff80001d339ea8,0xffff80001d339c48 process=0xffff8000ffffaa90 user=0xffff80001d36d000, vmspace=0xfffffd806bc09000 estcpu=0, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 84582 110753 79588 0 3 0x82 thrsleep syz-execprog 84582 235674 79588 0 3 0x4000082 thrsleep syz-execprog 84582 286398 79588 0 3 0x4000082 thrsleep syz-execprog 84582 91348 79588 0 3 0x4000082 thrsleep syz-execprog 84582 401845 79588 0 3 0x4000082 wait syz-execprog 84582 375062 79588 0 3 0x4000082 kqread syz-execprog 84582 507426 79588 0 3 0x4000082 thrsleep syz-execprog 79588 214557 96510 0 3 0x10008a pause ksh 96510 220136 63698 0 3 0x92 select sshd 95899 403762 1 0 3 0x100083 ttyin getty 63698 127337 1 0 3 0x80 select sshd 79468 179066 71993 73 3 0x100090 kqread syslogd 71993 124579 1 0 3 0x100082 netio syslogd 87208 348720 1 77 2 0x100010 dhclient *78729 194370 1 0 7 0 dhclient 68711 128463 0 0 3 0x14200 pgzero zerothread 68480 296939 0 0 3 0x14200 aiodoned aiodoned 23012 106793 0 0 3 0x14200 syncer update 98056 140097 0 0 3 0x14200 cleaner cleaner 42492 34476 0 0 3 0x14200 reaper reaper 49579 170227 0 0 3 0x14200 pgdaemon pagedaemon 12197 89414 0 0 3 0x14200 bored crynlk 71604 294165 0 0 3 0x14200 bored crypto 89077 269577 0 0 3 0x40014200 acpi0 acpi0 5839 406596 0 0 2 0x14200 softnet 69057 434466 0 0 2 0x14200 systqmp 6617 294110 0 0 3 0x14200 bored systq 40035 271667 0 0 3 0x40014200 bored softclock 5080 288938 0 0 3 0x40014200 idle0 71404 74085 0 0 3 0x14200 bored smr 1 451847 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 61 1K 2K 78643K 156 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 69 11K 12K 78643K 839 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 3013K 3077K 78643K 1667 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 256 145 0 0 10 0 10 10 0 8 0 art_table 32 146 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 4360 0 4360 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 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 5503 0 5474 7 2 5 7 0 8 1 mtagpl 80 2 0 2 1 1 0 1 0 8 0 mbufpl 256 9593 0 9516 11 4 7 7 0 8 0 bufpl 280 3649 0 161 250 0 250 250 0 8 0 anonpl 16 20265 0 18824 15 2 13 13 0 107 6 amapchunkpl 152 755 0 694 5 0 5 5 0 158 2 amappl16 192 125 0 98 2 0 2 2 0 8 0 amappl15 184 1 0 0 1 0 1 1 0 8 0 amappl14 176 2 0 1 2 1 1 1 0 8 0 amappl13 168 18 0 17 1 0 1 1 0 8 0 amappl12 160 10 0 5 1 0 1 1 0 8 0 amappl11 152 59 0 47 1 0 1 1 0 8 0 amappl10 144 11 0 8 1 0 1 1 0 8 0 amappl9 136 217 0 214 1 0 1 1 0 8 0 amappl8 128 232 0 224 1 0 1 1 0 8 0 amappl7 120 102 0 93 1 0 1 1 0 8 0 amappl6 112 22 0 18 1 0 1 1 0 8 0 amappl5 104 147 0 137 1 0 1 1 0 8 0 amappl4 96 445 0 420 1 0 1 1 0 8 0 amappl3 88 112 0 106 1 0 1 1 0 8 0 amappl2 80 833 0 779 3 0 3 3 0 8 1 amappl1 72 13537 0 13151 27 10 17 20 0 8 8 amappl 80 418 0 393 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 6042 0 6022 1 0 1 1 0 8 0 vmmpepl 168 28988 0 28159 84 8 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 103285 0 99605 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 112 131 0 8 4 0 4 4 0 8 0 ddb>