Ëpanic: receive 1a: so 0xfffffd805e54a320, so_type 3, m 0xfffffd8052881700, m_type 0 Stopped at db_enter+0x18: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *228401 13677 0 0 0 0 dhclient db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic(ffffffff8219b0c3) at panic+0x15c sys/kern/subr_prf.c:207 soreceive(fffffd805e54a320,0,ffff80001d382278,0,0,ffff80001d382184) at soreceive+0x170a sys/kern/uipc_socket.c:977 soo_read(fffffd8062bfb708,ffff80001d382278,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff80001d349758,6,ffff80001d382278,0,ffff80001d382360) at dofilereadv+0x1a1 sys/kern/sys_generic.c:236 sys_read(ffff80001d349758,ffff80001d382310,ffff80001d382360) at sys_read+0x83 sys/kern/sys_generic.c:156 syscall(ffff80001d3823e0) at syscall+0x507 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffceff0, 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 0xfffffd805e54a320, so_type 3, m 0xfffffd8052881700, m_type 0 ddb> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic(ffffffff8219b0c3) at panic+0x15c sys/kern/subr_prf.c:207 soreceive(fffffd805e54a320,0,ffff80001d382278,0,0,ffff80001d382184) at soreceive+0x170a sys/kern/uipc_socket.c:977 soo_read(fffffd8062bfb708,ffff80001d382278,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff80001d349758,6,ffff80001d382278,0,ffff80001d382360) at dofilereadv+0x1a1 sys/kern/sys_generic.c:236 sys_read(ffff80001d349758,ffff80001d382310,ffff80001d382360) at sys_read+0x83 sys/kern/sys_generic.c:156 syscall(ffff80001d3823e0) at syscall+0x507 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffceff0, count: -8 ddb> show registers rdi 0 rsi 0x1 rbp 0xffff80001d381fc0 rbx 0xffff80001d382070 rdx 0x2 rcx 0 rax 0 r8 0xffff80001d381f80 r9 0x1 r10 0 r11 0xe17f6667d27137 r12 0x3000000008 r13 0xffff80001d381fd0 r14 0x100 r15 0x1 rip 0xffffffff81051788 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff80001d381fb0 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb> show proc PROC (dhclient) pid=228401 stat=onproc flags process=0 proc=0 pri=24, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff80001d34a118,0xffff80001d3499d8 process=0xffff8000ffffaa90 user=0xffff80001d37d000, vmspace=0xfffffd806bc09110 estcpu=0, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 33945 142485 63791 0 2 0 syz-executor.1 33945 59417 63791 0 2 0x4000000 syz-executor.1 84586 303010 36689 60928 2 0x10 syz-executor.0 84586 438141 36689 60928 2 0x4000010 syz-executor.0 63791 59255 38776 0 3 0x82 nanosleep syz-executor.1 86628 249558 0 0 3 0x14200 bored sosplice 36689 209565 38776 0 3 0x82 nanosleep syz-executor.0 38776 454402 17565 0 3 0x82 thrsleep syz-fuzzer 38776 374437 17565 0 3 0x4000082 thrsleep syz-fuzzer 38776 394009 17565 0 3 0x4000082 thrsleep syz-fuzzer 38776 406176 17565 0 3 0x4000082 thrsleep syz-fuzzer 38776 63433 17565 0 3 0x4000082 thrsleep syz-fuzzer 38776 229915 17565 0 3 0x4000082 kqread syz-fuzzer 38776 404532 17565 0 3 0x4000082 thrsleep syz-fuzzer 38776 170879 17565 0 3 0x4000082 thrsleep syz-fuzzer 17565 91903 37358 0 3 0x10008a pause ksh 37358 319732 54907 0 3 0x92 select sshd 90396 454916 1 0 3 0x100083 ttyin getty 54907 287170 1 0 3 0x80 select sshd 2807 425334 27240 73 3 0x100090 kqread syslogd 27240 380547 1 0 3 0x100082 netio syslogd 95172 105388 1 77 2 0x100010 dhclient *13677 228401 1 0 7 0 dhclient 12889 63706 0 0 2 0x14200 zerothread 15995 276342 0 0 3 0x14200 aiodoned aiodoned 44084 84090 0 0 3 0x14200 syncer update 49763 216454 0 0 3 0x14200 cleaner cleaner 69054 25690 0 0 3 0x14200 reaper reaper 36784 440579 0 0 3 0x14200 pgdaemon pagedaemon 85343 24577 0 0 3 0x14200 bored crynlk 64975 464103 0 0 3 0x14200 bored crypto 67685 460312 0 0 3 0x40014200 acpi0 acpi0 70678 378742 0 0 3 0x14200 bored softnet 9064 311629 0 0 3 0x14200 bored systqmp 90441 308582 0 0 3 0x14200 bored systq 9264 11758 0 0 3 0x40014200 bored softclock 15079 288256 0 0 3 0x40014200 idle0 66240 350777 0 0 3 0x14200 bored smr 1 498576 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 9490 6346K 6790K 78643K 11121 0 pcb 13 8K 8K 78643K 64 0 rtable 116 4K 4K 78643K 314 0 ifaddr 71 15K 15K 78643K 130 0 counters 21 16K 16K 78643K 31 0 ioctlops 0 0K 2K 78643K 30 0 iov 0 0K 20K 78643K 62 0 mount 1 1K 1K 78643K 1 0 vnodes 1223 77K 77K 78643K 1430 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 11 0 VM map 2 0K 0K 78643K 2 0 sem 12 0K 1K 78643K 26 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1794 195K 288K 78643K 12646 0 file desc 6 17K 25K 78643K 306 0 sigio 0 0K 0K 78643K 20 0 proc 49 38K 62K 78643K 427 0 subproc 32 2K 2K 78643K 53 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 153 0 in_multi 73 3K 4K 78643K 103 0 ether_multi 1 0K 0K 78643K 9 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 61 281K 281K 78643K 61 0 exec 0 0K 1K 78643K 248 0 pfkey data 0 0K 0K 78643K 2 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 119 38K 42K 78643K 1629 0 UVM aobj 29 3K 3K 78643K 35 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 38 0 NDP 10 0K 0K 78643K 26 0 temp 121 3014K 3078K 78643K 20513 0 kqueue 3 4K 20K 78643K 74 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 10 0 2 1 0 1 1 0 8 0 rtpcb 80 41 0 39 1 0 1 1 0 8 0 rtentry 112 60 0 12 2 0 2 2 0 8 0 unpcb 120 307 0 299 1 0 1 1 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpqe 32 55 0 55 1 1 0 1 0 8 0 tcpcb 544 112 0 108 2 1 1 2 0 8 0 ipq 40 34 0 34 1 0 1 1 0 8 1 ipqe 40 228 0 228 1 0 1 1 0 8 1 inpcb 280 423 0 415 3 1 2 2 0 8 1 nd6 48 7 0 3 1 0 1 1 0 8 0 pkpcb 40 2 0 2 1 1 0 1 0 8 0 ppxss 1128 1 0 1 1 1 0 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 270 0 45 15 0 15 15 0 8 0 art_table 32 271 0 45 2 0 2 2 0 8 0 art_node 16 59 0 15 1 0 1 1 0 8 0 sysvmsgpl 40 10 0 6 2 1 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 22 0 12 1 0 1 1 0 8 0 shmpl 112 33 0 6 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 1858 0 462 46 0 46 46 0 8 0 ffsino 240 1858 0 462 83 0 83 83 0 8 0 nchpl 144 2523 0 922 60 0 60 60 0 8 0 uvmvnodes 72 2031 0 0 37 0 37 37 0 8 0 vnodes 208 2031 0 0 107 0 107 107 0 8 0 namei 1024 6986 0 6986 1 0 1 1 0 8 1 vcpupl 1984 1 0 0 1 0 1 1 0 8 0 vmpool 528 5 0 4 1 0 1 1 0 8 0 scxspl 192 7429 0 7429 1 0 1 1 0 8 1 plimitpl 152 45 0 38 1 0 1 1 0 8 0 sigapl 432 474 0 460 2 0 2 2 0 8 0 futexpl 56 7821 0 7821 1 0 1 1 0 8 1 knotepl 112 172 0 153 1 0 1 1 0 8 0 kqueuepl 104 294 0 291 1 0 1 1 0 8 0 pipelkpl 16 143 0 133 1 0 1 1 0 8 0 pipepl 120 286 0 267 2 1 1 2 0 8 0 fdescpl 432 475 0 460 2 0 2 2 0 8 0 filepl 120 3626 0 3529 5 1 4 5 0 8 1 lockfpl 104 68 0 67 1 0 1 1 0 8 0 lockfspl 48 26 0 25 1 0 1 1 0 8 0 sessionpl 112 18 0 8 1 0 1 1 0 8 0 pgrppl 48 26 0 16 1 0 1 1 0 8 0 ucredpl 96 531 0 522 1 0 1 1 0 8 0 zombiepl 144 460 0 460 1 0 1 1 0 8 1 processpl 896 490 0 460 4 0 4 4 0 8 0 procpl 624 875 0 836 4 0 4 4 0 8 0 sosppl 128 8 0 8 1 1 0 1 0 8 0 sockpl 400 788 0 771 5 1 4 4 0 8 2 mcl64k 65536 40 0 38 1 0 1 1 0 8 0 mcl16k 16384 19 0 19 1 0 1 1 0 8 1 mcl12k 12288 9 0 9 1 0 1 1 0 8 1 mcl9k 9216 8 0 8 1 0 1 1 0 8 1 mcl8k 8192 14 0 14 2 1 1 1 0 8 1 mcl4k 4096 68 0 68 2 1 1 1 0 8 1 mcl2k2 2112 3 0 3 2 2 0 1 0 8 0 mcl2k 2048 65948 0 65904 16 9 7 12 0 8 0 mtagpl 80 24 0 6 2 1 1 1 0 8 0 mbufpl 256 108307 0 107995 36 6 30 30 0 8 9 bufpl 280 4857 0 182 334 0 334 334 0 8 0 anonpl 16 73301 0 59125 73 1 72 72 0 107 1 amapchunkpl 152 2469 0 2325 11 4 7 11 0 158 1 amappl16 192 3189 0 2233 49 0 49 49 0 8 1 amappl15 184 52 0 48 1 0 1 1 0 8 0 amappl14 176 50 0 43 1 0 1 1 0 8 0 amappl13 168 1 0 1 1 1 0 1 0 8 0 amappl12 160 119 0 118 2 1 1 1 0 8 0 amappl11 152 50 0 39 1 0 1 1 0 8 0 amappl10 144 12 0 10 1 0 1 1 0 8 0 amappl9 136 700 0 693 1 0 1 1 0 8 0 amappl8 128 262 0 234 1 0 1 1 0 8 0 amappl7 120 98 0 87 1 0 1 1 0 8 0 amappl6 112 52 0 48 1 0 1 1 0 8 0 amappl5 104 308 0 296 1 0 1 1 0 8 0 amappl4 96 599 0 569 1 0 1 1 0 8 0 amappl3 88 242 0 234 1 0 1 1 0 8 0 amappl2 80 2989 0 2910 3 1 2 3 0 8 0 amappl1 72 18494 0 18059 26 16 10 20 0 8 0 amappl 80 1113 0 1067 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 34 0 6 1 0 1 1 0 8 0 uaddrrnd 24 480 0 464 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 480 0 464 1 0 1 1 0 8 0 vmmpekpl 168 7163 0 7138 2 0 2 2 0 8 0 vmmpepl 168 65636 0 63477 147 22 125 125 0 357 31 vmsppl 272 479 0 464 2 0 2 2 0 8 1 pdppl 4096 966 0 929 6 1 5 6 0 8 0 pvpl 32 232236 0 214959 177 0 177 177 0 265 12 pmappl 200 479 0 464 1 0 1 1 0 8 0 extentpl 40 46 0 29 1 0 1 1 0 8 0 phpool 112 182 0 22 5 0 5 5 0 8 0