"*"*panic: receive 1a: so 0xfffffd805e502190, so_type 3, m 0xfffffd8053fdb900, m_type 0 Stopped at db_enter+0x18: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *444350 23323 0 0 0 0 dhclient db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic(ffffffff823cf924) at panic+0x15c sys/kern/subr_prf.c:207 soreceive(fffffd805e502190,0,ffff80001d6e5758,0,0,ffff80001d6e5664) at soreceive+0x170a sys/kern/uipc_socket.c:983 soo_read(fffffd805fbf7780,ffff80001d6e5758,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff80001d6a9278,6,ffff80001d6e5758,0,ffff80001d6e5840) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff80001d6a9278,ffff80001d6e57f0,ffff80001d6e5840) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff80001d6e58c0) at syscall+0x507 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffc40d0, 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 0xfffffd805e502190, so_type 3, m 0xfffffd8053fdb900, m_type 0 ddb> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic(ffffffff823cf924) at panic+0x15c sys/kern/subr_prf.c:207 soreceive(fffffd805e502190,0,ffff80001d6e5758,0,0,ffff80001d6e5664) at soreceive+0x170a sys/kern/uipc_socket.c:983 soo_read(fffffd805fbf7780,ffff80001d6e5758,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff80001d6a9278,6,ffff80001d6e5758,0,ffff80001d6e5840) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff80001d6a9278,ffff80001d6e57f0,ffff80001d6e5840) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff80001d6e58c0) at syscall+0x507 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffc40d0, count: -8 ddb> show registers rdi 0 rsi 0x1 rbp 0xffff80001d6e54a0 rbx 0xffff80001d6e5550 rdx 0x2 rcx 0 rax 0x1 r8 0xffffffff8228533f kprintf+0x15f r9 0x1 r10 0x2 r11 0x507eeb7e298c550e r12 0x3000000008 r13 0xffff80001d6e54b0 r14 0x100 r15 0x1 rip 0xffffffff81cfcf18 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff80001d6e5490 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb> show proc PROC (dhclient) pid=444350 stat=onproc flags process=0 proc=0 pri=24, usrpri=51, nice=20 forw=0xffffffffffffffff, list=0xffff80001d6aa388,0xffff80001d6a94f8 process=0xffff80001d6c4750 user=0xffff80001d6e0000, vmspace=0xfffffd806bc09110 estcpu=1, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 47542 317381 18679 0 2 0 syz-executor.1 47542 17002 18679 0 2 0x4000000 syz-executor.1 7618 299416 0 0 3 0x14280 nfsidl nfsio 14933 53812 0 0 3 0x14280 nfsidl nfsio 27256 85568 0 0 3 0x14280 nfsidl nfsio 89884 310880 0 0 3 0x14280 nfsidl nfsio 60576 361676 0 0 3 0x14280 nfsidl nfsio 20746 9318 0 0 3 0x14280 nfsidl nfsio 89949 438345 0 0 3 0x14280 nfsidl nfsio 21935 15521 0 0 3 0x14280 nfsidl nfsio 33484 155038 0 0 3 0x14280 nfsidl nfsio 14734 17113 0 0 3 0x14280 nfsidl nfsio 10097 247611 0 0 3 0x14280 nfsidl nfsio 62199 461383 0 0 3 0x14280 nfsidl nfsio 93077 130691 0 0 3 0x14280 nfsidl nfsio 54241 48529 0 0 3 0x14280 nfsidl nfsio 13582 365697 0 0 3 0x14280 nfsidl nfsio 99551 252642 0 0 3 0x14280 nfsidl nfsio 39593 461849 0 0 3 0x14280 nfsidl nfsio 4639 25068 0 0 3 0x14280 nfsidl nfsio 30622 378297 0 0 3 0x14280 nfsidl nfsio 11412 462276 0 0 3 0x14280 nfsidl nfsio 10186 288266 0 0 3 0x14200 acct acct 20283 51888 0 0 3 0x14200 bored sosplice 98192 28070 73542 0 2 0x2 syz-executor.0 18679 220563 73542 0 2 0x482 syz-executor.1 73542 21918 96391 0 3 0x82 thrsleep syz-fuzzer 73542 203369 96391 0 2 0x4000482 syz-fuzzer 73542 455920 96391 0 3 0x4000082 kqread syz-fuzzer 73542 89198 96391 0 3 0x4000082 thrsleep syz-fuzzer 73542 512163 96391 0 3 0x4000082 thrsleep syz-fuzzer 73542 345670 96391 0 3 0x4000082 thrsleep syz-fuzzer 73542 229689 96391 0 3 0x4000082 thrsleep syz-fuzzer 96391 127110 68114 0 3 0x10008a pause ksh 68114 310179 90259 0 3 0x92 select sshd 83598 233028 1 0 3 0x100083 ttyin getty 90259 111684 1 0 3 0x80 select sshd 20781 244071 62540 73 3 0x100090 kqread syslogd 62540 172138 1 0 3 0x100082 netio syslogd 33738 183560 1 77 2 0x100010 dhclient *23323 444350 1 0 7 0 dhclient 19697 482963 0 0 3 0x14200 bored smr 18741 131970 0 0 2 0x14200 zerothread 89009 506053 0 0 3 0x14200 aiodoned aiodoned 73615 133010 0 0 3 0x14200 syncer update 98397 182139 0 0 3 0x14200 cleaner cleaner 26092 285755 0 0 3 0x14200 reaper reaper 11766 299982 0 0 3 0x14200 pgdaemon pagedaemon 71161 243572 0 0 3 0x14200 bored crynlk 67122 171997 0 0 3 0x14200 bored crypto 86914 236716 0 0 3 0x40014200 acpi0 acpi0 23959 205300 0 0 3 0x14200 bored softnet 42075 256855 0 0 3 0x14200 bored systqmp 98598 291640 0 0 3 0x14200 bored systq 59364 33046 0 0 2 0x40014200 softclock 41109 76792 0 0 3 0x40014200 idle0 1 292939 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 9487 6345K 7180K 78643K 11569 0 pcb 13 8K 8K 78643K 56 0 rtable 98 3K 7K 78643K 446 0 ifaddr 62 12K 13K 78643K 156 0 sysctl 2 0K 0K 78643K 2 0 counters 21 16K 16K 78643K 23 0 ioctlops 0 0K 4K 78643K 73 0 iov 0 0K 24K 78643K 53 0 mount 1 1K 1K 78643K 1 0 vnodes 1227 77K 77K 78643K 1485 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 7 0 VM map 2 0K 0K 78643K 2 0 sem 12 1K 1K 78643K 22 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1809 195K 288K 78643K 12938 0 file desc 5 13K 25K 78643K 597 0 sigio 0 0K 0K 78643K 6 0 proc 49 38K 54K 78643K 383 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 252 0 in_multi 32 2K 2K 78643K 112 0 ether_multi 1 0K 0K 78643K 5 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 49 228K 228K 78643K 49 0 exec 0 0K 1K 78643K 211 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 131 23K 25K 78643K 2250 0 UVM aobj 29 2K 2K 78643K 31 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 24 0 NDP 10 0K 0K 78643K 20 0 temp 106 3854K 3930K 78643K 10072 0 kqueue 3 4K 8K 78643K 11 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 25 0 23 1 0 1 1 0 8 0 rtentry 112 68 0 29 2 0 2 2 0 8 0 unpcb 120 183 0 175 1 0 1 1 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 sackhl 24 1 0 1 1 1 0 1 0 8 0 tcpqe 32 67 0 67 1 1 0 1 0 8 0 tcpcb 544 339 0 335 1 0 1 1 0 8 0 ipq 40 2 0 2 1 1 0 1 0 8 0 ipqe 40 90 0 90 1 1 0 1 0 8 0 inpcb 296 1055 0 1048 4 2 2 2 0 8 1 ip6q 72 1 0 1 1 1 0 1 0 8 0 ip6af 40 2 0 2 1 1 0 1 0 8 0 nd6 48 23 0 20 1 0 1 1 0 8 0 ppxss 1136 1 0 1 1 0 1 1 0 8 1 pfstscr 40 2 0 2 1 1 0 1 0 8 0 pfosfp 40 1 0 0 1 0 1 1 0 8 0 pfosfpen 112 1 0 0 1 0 1 1 0 8 0 pfrktable 1344 90 0 90 2 2 0 1 0 8 0 pftag 88 15 0 14 1 0 1 1 0 8 0 pfqueue 264 2 0 2 1 1 0 1 0 8 0 pfstkey 112 3 0 3 1 1 0 1 0 8 0 pfstate 328 2 0 2 1 1 0 1 0 8 0 pfrule 1360 18 0 18 3 2 1 1 0 8 1 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 254 0 84 13 0 13 13 0 8 0 art_table 32 255 0 84 2 0 2 2 0 8 0 art_node 16 67 0 30 1 0 1 1 0 8 0 sysvmsgpl 40 4 0 2 1 0 1 1 0 8 0 semupl 112 2 0 2 1 1 0 1 0 8 0 semapl 112 14 0 4 1 0 1 1 0 8 0 shmpl 112 28 0 2 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 2095 0 697 88 0 88 88 0 8 0 ffsino 240 2095 0 697 83 0 83 83 0 8 0 nchpl 144 3090 0 1486 60 0 60 60 0 8 0 uvmvnodes 72 2361 0 0 43 0 43 43 0 8 0 vnodes 208 2361 0 0 125 0 125 125 0 8 0 namei 1024 8474 0 8474 1 0 1 1 0 8 1 vmpool 528 2 0 2 1 1 0 1 0 8 0 pfiaddrpl 120 26 0 26 2 2 0 1 0 8 0 scxspl 192 8825 0 8825 1 0 1 1 0 8 1 plimitpl 152 40 0 33 1 0 1 1 0 8 0 sigapl 424 805 0 755 6 0 6 6 0 8 0 futexpl 56 11712 0 11712 1 0 1 1 0 8 1 knotepl 112 69 0 50 1 0 1 1 0 8 0 kqueuepl 144 242 0 240 1 0 1 1 0 8 0 pipepl 272 121 0 111 2 1 1 2 0 8 0 fdescpl 432 769 0 755 2 0 2 2 0 8 0 filepl 120 4641 0 4545 4 0 4 4 0 8 1 lockfpl 104 250 0 249 1 0 1 1 0 8 0 lockfspl 48 106 0 105 1 0 1 1 0 8 0 sessionpl 112 17 0 7 1 0 1 1 0 8 0 pgrppl 48 23 0 13 1 0 1 1 0 8 0 ucredpl 96 305 0 298 1 0 1 1 0 8 0 zombiepl 144 755 0 755 1 0 1 1 0 8 1 processpl 928 805 0 755 7 0 7 7 0 8 0 procpl 624 1550 0 1493 5 0 5 5 0 8 0 sosppl 128 15 0 15 3 2 1 1 0 8 1 sockpl 400 1264 0 1247 4 1 3 4 0 8 1 mcl64k 65536 24 0 24 3 2 1 1 0 8 1 mcl12k 12288 11 0 11 3 2 1 1 0 8 1 mcl9k 9216 7 0 7 4 3 1 1 0 8 1 mcl8k 8192 15 0 15 3 2 1 1 0 8 1 mcl4k 4096 56 0 56 4 3 1 1 0 8 1 mcl2k2 2112 4 0 4 2 1 1 1 0 8 1 mcl2k 2048 93527 0 93482 17 10 7 15 0 8 0 mtagpl 96 122 0 7 4 1 3 3 0 8 0 mbufpl 256 150818 0 150375 34 3 31 32 0 8 2 bufpl 280 4144 0 127 287 0 287 287 0 8 0 anonpl 16 84305 0 67969 95 26 69 85 0 107 0 amapchunkpl 152 3457 0 3317 14 7 7 13 0 158 0 amappl16 192 3603 0 2669 60 12 48 58 0 8 1 amappl15 184 9 0 7 1 0 1 1 0 8 0 amappl14 176 31 0 26 1 0 1 1 0 8 0 amappl13 168 26 0 23 1 0 1 1 0 8 0 amappl12 160 14 0 10 1 0 1 1 0 8 0 amappl11 152 46 0 36 1 0 1 1 0 8 0 amappl10 144 11 0 6 1 0 1 1 0 8 0 amappl9 136 909 0 905 1 0 1 1 0 8 0 amappl8 128 900 0 854 2 0 2 2 0 8 0 amappl7 120 105 0 93 1 0 1 1 0 8 0 amappl6 112 29 0 19 1 0 1 1 0 8 0 amappl5 104 762 0 751 1 0 1 1 0 8 0 amappl4 96 419 0 392 1 0 1 1 0 8 0 amappl3 88 122 0 116 1 0 1 1 0 8 0 amappl2 80 5341 0 5274 2 0 2 2 0 8 0 amappl1 72 26929 0 26518 24 15 9 17 0 8 0 amappl 80 1762 0 1720 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 30 0 2 1 0 1 1 0 8 0 uaddrrnd 24 771 0 757 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 771 0 757 1 0 1 1 0 8 0 vmmpekpl 168 8411 0 8382 2 0 2 2 0 8 0 vmmpepl 168 100210 0 98177 129 34 95 118 0 357 5 vmsppl 272 770 0 757 2 1 1 2 0 8 0 pdppl 4096 1548 0 1514 6 1 5 6 0 8 0 pvpl 32 247856 0 228400 209 30 179 199 0 265 17 pmappl 200 770 0 757 1 0 1 1 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 275 0 28 8 0 8 8 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic(ffffffff823cf924) at panic+0x15c sys/kern/subr_prf.c:207 soreceive(fffffd805e502190,0,ffff80001d6e5758,0,0,ffff80001d6e5664) at soreceive+0x170a sys/kern/uipc_socket.c:983 soo_read(fffffd805fbf7780,ffff80001d6e5758,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff80001d6a9278,6,ffff80001d6e5758,0,ffff80001d6e5840) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff80001d6a9278,ffff80001d6e57f0,ffff80001d6e5840) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff80001d6e58c0) at syscall+0x507 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffc40d0, count: -8 ddb> machine ddbcpu 1 No such command ddb> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic(ffffffff823cf924) at panic+0x15c sys/kern/subr_prf.c:207 soreceive(fffffd805e502190,0,ffff80001d6e5758,0,0,ffff80001d6e5664) at soreceive+0x170a sys/kern/uipc_socket.c:983 soo_read(fffffd805fbf7780,ffff80001d6e5758,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff80001d6a9278,6,ffff80001d6e5758,0,ffff80001d6e5840) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff80001d6a9278,ffff80001d6e57f0,ffff80001d6e5840) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff80001d6e58c0) at syscall+0x507 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffc40d0, count: -8