login: panic: receive 1: so 0xfffffd805e4da300, so_type 3, sb_cc 33 Stopped at db_enter+0x18: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *121968 23458 0 0 0 0 dhclient db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic(ffffffff8219b1e0) at panic+0x15c sys/kern/subr_prf.c:207 soreceive(fffffd805e4da300,0,ffff80001d376bd8,0,0,ffff80001d376ae4) at soreceive+0x16ac sys/kern/uipc_socket.c:798 soo_read(fffffd8066ff67f8,ffff80001d376bd8,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff8000ffff89e8,6,ffff80001d376bd8,0,ffff80001d376cc0) at dofilereadv+0x1a2 sys/kern/sys_generic.c:236 sys_read(ffff8000ffff89e8,ffff80001d376c70,ffff80001d376cc0) at sys_read+0x83 sys/kern/sys_generic.c:156 syscall(ffff80001d376d40) at syscall+0x507 sys/arch/amd64/amd64/trap.c:555 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffe8f50, 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 1: so 0xfffffd805e4da300, so_type 3, sb_cc 33 ddb> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic(ffffffff8219b1e0) at panic+0x15c sys/kern/subr_prf.c:207 soreceive(fffffd805e4da300,0,ffff80001d376bd8,0,0,ffff80001d376ae4) at soreceive+0x16ac sys/kern/uipc_socket.c:798 soo_read(fffffd8066ff67f8,ffff80001d376bd8,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff8000ffff89e8,6,ffff80001d376bd8,0,ffff80001d376cc0) at dofilereadv+0x1a2 sys/kern/sys_generic.c:236 sys_read(ffff8000ffff89e8,ffff80001d376c70,ffff80001d376cc0) at sys_read+0x83 sys/kern/sys_generic.c:156 syscall(ffff80001d376d40) at syscall+0x507 sys/arch/amd64/amd64/trap.c:555 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffe8f50, count: -8 ddb> show registers rdi 0 rsi 0x1 rbp 0xffff80001d376920 rbx 0xffff80001d3769d0 rdx 0x2 rcx 0 rax 0 r8 0xffff80001d3768e0 r9 0x1 r10 0 r11 0xa10854ef37b80b93 r12 0x3000000008 r13 0xffff80001d376930 r14 0x100 r15 0x1 rip 0xffffffff81f1cb68 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff80001d376910 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb> show proc PROC (dhclient) pid=121968 stat=onproc flags process=0 proc=0 pri=50, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff8000ffff8c60,0xffff8000ffff93d8 process=0xffff8000ffff66e0 user=0xffff80001d371000, vmspace=0xfffffd806bc12440 estcpu=0, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 68445 73834 10460 0 2 0 syz-executor.1 68445 193901 10460 0 2 0x4000000 syz-executor.1 10926 376209 80706 0 3 0x80 nanosleep syz-executor.0 10926 138085 80706 0 3 0x4000080 msgwait syz-executor.0 10926 106298 80706 0 3 0x4000080 fsleep syz-executor.0 14889 467231 0 0 3 0x14200 acct acct 80706 457557 98613 0 3 0x82 nanosleep syz-executor.0 10460 297215 98613 0 3 0x82 nanosleep syz-executor.1 98613 230004 16945 0 3 0x82 thrsleep syz-fuzzer 98613 520368 16945 0 3 0x4000082 thrsleep syz-fuzzer 98613 391747 16945 0 3 0x4000082 thrsleep syz-fuzzer 98613 274729 16945 0 3 0x4000082 thrsleep syz-fuzzer 98613 51524 16945 0 3 0x4000082 thrsleep syz-fuzzer 98613 129662 16945 0 3 0x4000082 kqread syz-fuzzer 98613 492437 16945 0 3 0x4000082 thrsleep syz-fuzzer 16945 43158 4333 0 3 0x10008a pause ksh 4333 12418 31891 0 3 0x92 select sshd 66524 329127 1 0 3 0x100083 ttyin getty 31891 411417 1 0 3 0x80 select sshd 98149 345823 45599 73 3 0x100090 kqread syslogd 45599 272425 1 0 3 0x100082 netio syslogd 15462 6917 1 77 2 0x100010 dhclient *23458 121968 1 0 7 0 dhclient 54301 216567 0 0 2 0x14200 zerothread 25347 428390 0 0 3 0x14200 aiodoned aiodoned 37616 515308 0 0 3 0x14200 syncer update 31829 242728 0 0 3 0x14200 cleaner cleaner 79327 363958 0 0 3 0x14200 reaper reaper 29434 337709 0 0 3 0x14200 pgdaemon pagedaemon 87606 417835 0 0 3 0x14200 bored crynlk 84304 469171 0 0 3 0x14200 bored crypto 97733 68977 0 0 3 0x40014200 acpi0 acpi0 16564 389672 0 0 3 0x14200 bored softnet 30634 373169 0 0 3 0x14200 bored systqmp 89567 485881 0 0 3 0x14200 bored systq 65476 85463 0 0 3 0x40014200 bored softclock 1175 176737 0 0 3 0x40014200 idle0 99510 461451 0 0 3 0x14200 bored smr 1 228378 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 9477 6340K 6778K 78643K 10928 0 pcb 13 8K 8K 78643K 63 0 rtable 83 2K 3K 78643K 324 0 ifaddr 50 11K 11K 78643K 78 0 counters 19 16K 16K 78643K 19 0 ioctlops 0 0K 2K 78643K 37 0 iov 0 0K 24K 78643K 27 0 mount 1 1K 1K 78643K 1 0 vnodes 1223 77K 77K 78643K 1335 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 5 0 VM map 2 0K 0K 78643K 2 0 sem 12 0K 0K 78643K 22 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1794 195K 288K 78643K 12646 0 file desc 6 17K 25K 78643K 173 0 sigio 0 0K 0K 78643K 2 0 proc 48 38K 54K 78643K 375 0 subproc 32 2K 2K 78643K 34 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 in_multi 25 1K 2K 78643K 46 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 48 212K 212K 78643K 48 0 exec 0 0K 1K 78643K 195 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 121 70K 70K 78643K 1240 0 UVM aobj 9 2K 2K 78643K 9 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 46 0 NDP 8 0K 0K 78643K 16 0 temp 100 3022K 3085K 78643K 3658 0 kqueue 0 0K 0K 78643K 2 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 7 0 2 1 0 1 1 0 8 0 rtpcb 80 157 0 155 1 0 1 1 0 8 0 rtentry 112 50 0 17 2 0 2 2 0 8 0 unpcb 120 93 0 85 1 0 1 1 0 8 0 syncache 264 6 0 6 2 1 1 1 0 8 1 sackhl 24 1 0 1 1 0 1 1 0 8 1 tcpqe 32 343 0 343 1 0 1 1 0 8 1 tcpcb 544 60 0 56 1 0 1 1 0 8 0 ipq 40 2 0 2 1 0 1 1 0 8 1 ipqe 40 90 0 90 1 0 1 1 0 8 1 inpcb 280 227 0 218 2 0 2 2 0 8 1 nd6 48 5 0 4 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 237 0 82 14 0 14 14 0 8 2 art_table 32 238 0 82 2 0 2 2 0 8 0 art_node 16 49 0 18 1 0 1 1 0 8 0 sysvmsgpl 40 14 0 10 1 0 1 1 0 8 0 semapl 112 20 0 10 1 0 1 1 0 8 0 shmpl 112 7 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 1648 0 246 46 0 46 46 0 8 0 ffsino 240 1648 0 246 83 0 83 83 0 8 0 nchpl 144 2098 0 483 60 0 60 60 0 8 0 uvmvnodes 72 1777 0 0 33 0 33 33 0 8 0 vnodes 208 1777 0 0 94 0 94 94 0 8 0 namei 1024 5566 0 5566 1 0 1 1 0 8 1 vcpupl 1984 6 0 0 1 0 1 1 0 8 0 vmpool 528 6 0 0 1 0 1 1 0 8 0 scsiplug 64 1 0 1 1 0 1 1 0 8 1 scxspl 192 6088 0 6088 1 0 1 1 0 8 1 plimitpl 152 24 0 17 1 0 1 1 0 8 0 sigapl 432 344 0 330 2 0 2 2 0 8 0 futexpl 56 4055 0 4054 1 0 1 1 0 8 0 knotepl 112 74 0 55 1 0 1 1 0 8 0 kqueuepl 104 46 0 44 1 0 1 1 0 8 0 pipepl 128 334 0 315 2 0 2 2 0 8 1 fdescpl 424 345 0 330 2 0 2 2 0 8 0 filepl 120 2389 0 2291 5 0 5 5 0 8 2 lockfpl 104 221 0 219 1 0 1 1 0 8 0 lockfspl 48 22 0 20 1 0 1 1 0 8 0 sessionpl 112 17 0 7 1 0 1 1 0 8 0 pgrppl 48 19 0 9 1 0 1 1 0 8 0 ucredpl 96 211 0 204 1 0 1 1 0 8 0 zombiepl 144 330 0 330 1 0 1 1 0 8 1 processpl 872 360 0 330 4 0 4 4 0 8 0 procpl 632 543 0 504 4 0 4 4 0 8 0 sockpl 384 480 0 463 4 0 4 4 0 8 2 mcl64k 65536 15 0 15 1 0 1 1 0 8 1 mcl16k 16384 2 0 2 1 0 1 1 0 8 1 mcl12k 12288 6 0 6 1 0 1 1 0 8 1 mcl9k 9216 1 0 1 1 0 1 1 0 8 1 mcl8k 8192 14 0 14 1 0 1 1 0 8 1 mcl4k 4096 39 0 39 2 1 1 1 0 8 1 mcl2k2 2112 7 0 7 1 0 1 1 0 8 1 mcl2k 2048 67947 0 67882 18 5 13 16 0 8 4 mtagpl 80 18 0 4 2 1 1 1 0 8 0 mbufpl 256 109548 0 109422 29 8 21 23 0 8 5 bufpl 280 6562 0 1330 374 0 374 374 0 8 0 anonpl 16 49583 0 30188 81 1 80 80 0 107 2 amapchunkpl 152 1358 0 1202 8 1 7 8 0 158 0 amappl16 192 1801 0 730 55 0 55 55 0 8 1 amappl15 184 50 0 46 1 0 1 1 0 8 0 amappl14 176 26 0 23 1 0 1 1 0 8 0 amappl13 168 2 0 1 1 0 1 1 0 8 0 amappl12 160 80 0 75 1 0 1 1 0 8 0 amappl11 152 121 0 107 1 0 1 1 0 8 0 amappl10 144 19 0 17 1 0 1 1 0 8 0 amappl9 136 568 0 564 1 0 1 1 0 8 0 amappl8 128 116 0 92 1 0 1 1 0 8 0 amappl7 120 91 0 81 1 0 1 1 0 8 0 amappl6 112 120 0 114 1 0 1 1 0 8 0 amappl5 104 207 0 196 1 0 1 1 0 8 0 amappl4 96 488 0 457 1 0 1 1 0 8 0 amappl3 88 193 0 182 1 0 1 1 0 8 0 amappl2 80 1981 0 1905 3 1 2 3 0 8 0 amappl1 72 15890 0 15450 27 18 9 20 0 8 0 amappl 80 766 0 717 2 0 2 2 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 8 0 0 1 0 1 1 0 8 0 uaddrrnd 24 351 0 330 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 351 0 330 1 0 1 1 0 8 0 vmmpekpl 168 6516 0 6488 2 0 2 2 0 8 0 vmmpepl 168 49286 0 46995 136 11 125 126 0 357 25 vmsppl 272 350 0 330 2 0 2 2 0 8 0 pdppl 4096 708 0 666 6 0 6 6 0 8 0 pvpl 32 159659 0 137209 191 0 191 191 0 265 9 pmappl 200 350 0 330 2 0 2 2 0 8 0 extentpl 40 46 0 29 1 0 1 1 0 8 0 phpool 112 165 0 16 5 0 5 5 0 8 0