login: panic: receive 3: so 0xfffffd805f245190, so_type 3, m 0xfffffd806bc22700, m_type 0 Stopped at db_enter+0x18: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *163842 59319 0 0 0 0 dhclient db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic(ffffffff821acfbd) at panic+0x15c sys/kern/subr_prf.c:207 soreceive(fffffd805f245190,0,ffff80001d372cf8,0,0,ffff80001d372c04) at soreceive+0x16e7 soo_read(fffffd805f3f27f8,ffff80001d372cf8,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff80001d339758,6,ffff80001d372cf8,0,ffff80001d372de0) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff80001d339758,ffff80001d372d90,ffff80001d372de0) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff80001d372e60) at syscall+0x507 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffff4e30, 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 0xfffffd805f245190, so_type 3, m 0xfffffd806bc22700, m_type 0 ddb> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic(ffffffff821acfbd) at panic+0x15c sys/kern/subr_prf.c:207 soreceive(fffffd805f245190,0,ffff80001d372cf8,0,0,ffff80001d372c04) at soreceive+0x16e7 soo_read(fffffd805f3f27f8,ffff80001d372cf8,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff80001d339758,6,ffff80001d372cf8,0,ffff80001d372de0) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff80001d339758,ffff80001d372d90,ffff80001d372de0) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff80001d372e60) at syscall+0x507 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffff4e30, count: -8 ddb> show registers rdi 0 rsi 0x1 rbp 0xffff80001d372a40 rbx 0xffff80001d372af0 rdx 0x2 rcx 0 rax 0 r8 0xffff80001d372a00 r9 0x1 r10 0 r11 0xbdff1d17a5a8f1ad r12 0x3000000008 r13 0xffff80001d372a50 r14 0x100 r15 0x1 rip 0xffffffff82195b58 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff80001d372a30 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb> show proc PROC (dhclient) pid=163842 stat=onproc flags process=0 proc=0 pri=24, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff80001d339c38,0xffff80001d339eb8 process=0xffff8000ffffa710 user=0xffff80001d36d000, 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 63886 253422 83391 0 2 0 syz-executor.1 63886 480295 83391 0 2 0x4000000 syz-executor.1 83391 486304 18690 0 2 0x482 syz-executor.1 34594 331514 18690 0 2 0x482 syz-executor.0 18690 96819 86996 0 3 0x82 thrsleep syz-fuzzer 18690 259526 86996 0 2 0x4000482 syz-fuzzer 18690 165323 86996 0 3 0x4000082 kqread syz-fuzzer 18690 471310 86996 0 3 0x4000082 thrsleep syz-fuzzer 18690 363654 86996 0 3 0x4000082 thrsleep syz-fuzzer 18690 33849 86996 0 3 0x4000082 thrsleep syz-fuzzer 18690 352449 86996 0 3 0x4000082 thrsleep syz-fuzzer 18690 473628 86996 0 3 0x4000082 thrsleep syz-fuzzer 18690 425389 86996 0 3 0x4000082 thrsleep syz-fuzzer 86996 396983 26024 0 3 0x10008a pause ksh 26024 453418 58096 0 3 0x92 select sshd 24267 365572 1 0 3 0x100083 ttyin getty 58096 141398 1 0 3 0x80 select sshd 75073 228875 15394 73 3 0x100090 kqread syslogd 15394 361954 1 0 3 0x100082 netio syslogd 31366 138678 1 77 2 0x100010 dhclient *59319 163842 1 0 7 0 dhclient 62653 394520 0 0 3 0x14200 bored smr 66943 497194 0 0 2 0x14200 zerothread 74331 382755 0 0 3 0x14200 aiodoned aiodoned 82627 301420 0 0 3 0x14200 syncer update 27511 383215 0 0 3 0x14200 cleaner cleaner 8688 93926 0 0 3 0x14200 reaper reaper 28791 23123 0 0 3 0x14200 pgdaemon pagedaemon 22691 238599 0 0 3 0x14200 bored crynlk 35735 257256 0 0 3 0x14200 bored crypto 78972 419907 0 0 3 0x40014200 acpi0 acpi0 35734 222301 0 0 3 0x14200 bored softnet 7915 136910 0 0 3 0x14200 bored systqmp 89377 356813 0 0 3 0x14200 bored systq 25397 103747 0 0 3 0x40014200 bored softclock 97045 416356 0 0 3 0x40014200 idle0 1 65351 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 9469 6457K 6590K 78643K 10588 0 pcb 13 8K 8K 78643K 23 0 rtable 105 3K 3K 78643K 193 0 ifaddr 44 10K 10K 78643K 46 0 counters 21 16K 16K 78643K 21 0 ioctlops 0 0K 2K 78643K 15 0 iov 0 0K 0K 78643K 2 0 mount 1 1K 1K 78643K 1 0 vnodes 1220 77K 77K 78643K 1231 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 4 0K 0K 78643K 8 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1794 195K 288K 78643K 12646 0 file desc 5 13K 25K 78643K 47 0 proc 47 38K 54K 78643K 358 0 subproc 32 2K 2K 78643K 34 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 17 0 in_multi 33 2K 2K 78643K 35 0 ether_multi 1 0K 0K 78643K 2 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 31 148K 148K 78643K 31 0 exec 0 0K 1K 78643K 183 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 99 21K 22K 78643K 945 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 10 0K 0K 78643K 10 0 temp 67 3008K 3071K 78643K 1839 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 6 0 0 1 0 1 1 0 8 0 rtpcb 80 21 0 19 1 0 1 1 0 8 0 rtentry 112 45 0 1 2 0 2 2 0 8 0 unpcb 120 39 0 31 1 0 1 1 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpqe 32 9 0 9 1 0 1 1 0 8 1 tcpcb 544 14 0 10 1 0 1 1 0 8 0 ipq 40 2 0 2 1 0 1 1 0 8 1 ipqe 40 6 0 6 1 0 1 1 0 8 1 inpcb 280 54 0 47 2 0 2 2 0 8 1 nd6 48 6 0 0 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 188 0 0 12 0 12 12 0 8 0 art_table 32 189 0 0 2 0 2 2 0 8 0 art_node 16 44 0 4 1 0 1 1 0 8 0 sysvmsgpl 40 6 0 4 1 0 1 1 0 8 0 semapl 112 6 0 4 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 1434 0 34 46 0 46 46 0 8 0 ffsino 240 1434 0 34 83 0 83 83 0 8 0 nchpl 144 1684 0 71 60 0 60 60 0 8 0 uvmvnodes 72 1485 0 0 27 0 27 27 0 8 0 vnodes 208 1485 0 0 79 0 79 79 0 8 0 namei 1024 4026 0 4026 1 0 1 1 0 8 1 scxspl 192 4734 0 4734 1 0 1 1 0 8 1 plimitpl 152 14 0 7 1 0 1 1 0 8 0 sigapl 424 233 0 205 4 0 4 4 0 8 0 futexpl 56 391 0 391 1 0 1 1 0 8 1 knotepl 112 53 0 34 1 0 1 1 0 8 0 kqueuepl 144 2 0 0 1 0 1 1 0 8 0 pipelkpl 16 65 0 55 1 0 1 1 0 8 0 pipepl 120 130 0 111 1 0 1 1 0 8 0 fdescpl 432 219 0 205 2 0 2 2 0 8 0 filepl 120 1084 0 988 4 0 4 4 0 8 1 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 17 0 7 1 0 1 1 0 8 0 pgrppl 48 17 0 7 1 0 1 1 0 8 0 ucredpl 96 48 0 41 1 0 1 1 0 8 0 zombiepl 144 205 0 204 1 0 1 1 0 8 0 processpl 896 233 0 204 4 0 4 4 0 8 0 procpl 624 256 0 218 4 0 4 4 0 8 1 sockpl 400 114 0 97 3 0 3 3 0 8 1 mcl16k 16384 1 0 1 1 0 1 1 0 8 1 mcl12k 12288 1 0 1 1 0 1 1 0 8 1 mcl8k 8192 1 0 1 1 0 1 1 0 8 1 mcl4k 4096 11 0 11 2 1 1 1 0 8 1 mcl2k 2048 64686 0 64636 18 3 15 15 0 8 8 mtagpl 80 2 0 2 1 1 0 1 0 8 0 mbufpl 256 102179 0 102088 12 2 10 10 0 8 2 bufpl 280 3975 0 160 273 0 273 273 0 8 0 anonpl 16 37414 0 22294 62 1 61 61 0 107 0 amapchunkpl 152 1132 0 998 7 0 7 7 0 158 0 amappl16 192 992 0 167 42 0 42 42 0 8 0 amappl15 184 1 0 0 1 0 1 1 0 8 0 amappl14 176 9 0 7 2 1 1 1 0 8 0 amappl13 168 24 0 23 1 0 1 1 0 8 0 amappl12 160 14 0 11 1 0 1 1 0 8 0 amappl11 152 62 0 50 1 0 1 1 0 8 0 amappl10 144 11 0 8 1 0 1 1 0 8 0 amappl9 136 370 0 367 1 0 1 1 0 8 0 amappl8 128 265 0 249 1 0 1 1 0 8 0 amappl7 120 105 0 95 1 0 1 1 0 8 0 amappl6 112 23 0 17 1 0 1 1 0 8 0 amappl5 104 168 0 157 1 0 1 1 0 8 0 amappl4 96 435 0 405 1 0 1 1 0 8 0 amappl3 88 107 0 102 1 0 1 1 0 8 0 amappl2 80 952 0 886 3 0 3 3 0 8 1 amappl1 72 13574 0 13163 26 8 18 20 0 8 8 amappl 80 496 0 455 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 24 219 0 205 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 219 0 205 1 0 1 1 0 8 0 vmmpekpl 168 5647 0 5623 2 0 2 2 0 8 0 vmmpepl 168 33895 0 32023 123 8 115 115 0 357 33 vmsppl 272 218 0 205 2 0 2 2 0 8 1 pdppl 4096 444 0 410 6 0 6 6 0 8 1 pvpl 32 125013 0 106946 147 0 147 147 0 265 0 pmappl 200 218 0 205 1 0 1 1 0 8 0 extentpl 40 46 0 29 1 0 1 1 0 8 0 phpool 112 152 0 8 5 0 5 5 0 8 0