login: panic: receive 1a: so 0xfffffd805e552190, so_type 3, m 0xfffffd8056d41500, m_type 0 Stopped at db_enter+0x18: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND * 22778 52050 0 0 0 0 dhclient db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic(ffffffff821a0286) at panic+0x15c sys/kern/subr_prf.c:207 soreceive(fffffd805e552190,0,ffff80001d382798,0,0,ffff80001d3826a4) at soreceive+0x170a sys/kern/uipc_socket.c:977 soo_read(fffffd80639fb528,ffff80001d382798,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff80001d349008,6,ffff80001d382798,0,ffff80001d382880) at dofilereadv+0x1a1 sys/kern/sys_generic.c:236 sys_read(ffff80001d349008,ffff80001d382830,ffff80001d382880) at sys_read+0x83 sys/kern/sys_generic.c:156 syscall(ffff80001d382900) at syscall+0x507 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffd7220, 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 0xfffffd805e552190, so_type 3, m 0xfffffd8056d41500, m_type 0 ddb> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic(ffffffff821a0286) at panic+0x15c sys/kern/subr_prf.c:207 soreceive(fffffd805e552190,0,ffff80001d382798,0,0,ffff80001d3826a4) at soreceive+0x170a sys/kern/uipc_socket.c:977 soo_read(fffffd80639fb528,ffff80001d382798,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff80001d349008,6,ffff80001d382798,0,ffff80001d382880) at dofilereadv+0x1a1 sys/kern/sys_generic.c:236 sys_read(ffff80001d349008,ffff80001d382830,ffff80001d382880) at sys_read+0x83 sys/kern/sys_generic.c:156 syscall(ffff80001d382900) at syscall+0x507 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffd7220, count: -8 ddb> show registers rdi 0 rsi 0x1 rbp 0xffff80001d3824e0 rbx 0xffff80001d382590 rdx 0x2 rcx 0 rax 0 r8 0xffff80001d3824a0 r9 0x1 r10 0 r11 0xc7d148d6be8da84 r12 0x3000000008 r13 0xffff80001d3824f0 r14 0x100 r15 0x1 rip 0xffffffff816ecec8 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff80001d3824d0 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb> show proc PROC (dhclient) pid=22778 stat=onproc flags process=0 proc=0 pri=24, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff80001d34a388,0xffff80001d349288 process=0xffff8000ffffa010 user=0xffff80001d37d000, vmspace=0xfffffd806bc09330 estcpu=0, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 74348 213572 72596 0 2 0 syz-executor.1 74348 275525 72596 0 2 0x4000000 syz-executor.1 6057 120695 0 0 3 0x14200 bored sosplice 74699 298210 29410 0 2 0x2 syz-executor.0 72596 518131 29410 0 2 0x482 syz-executor.1 29410 174700 36884 0 3 0x82 thrsleep syz-fuzzer 29410 118320 36884 0 2 0x4000482 syz-fuzzer 29410 81362 36884 0 3 0x4000082 kqread syz-fuzzer 29410 215604 36884 0 3 0x4000082 thrsleep syz-fuzzer 29410 158232 36884 0 3 0x4000082 thrsleep syz-fuzzer 29410 467045 36884 0 3 0x4000082 thrsleep syz-fuzzer 29410 510570 36884 0 3 0x4000082 thrsleep syz-fuzzer 29410 379310 36884 0 3 0x4000082 thrsleep syz-fuzzer 36884 253275 54969 0 3 0x10008a pause ksh 54969 317231 52517 0 3 0x92 select sshd 8237 235635 1 0 3 0x100083 ttyin getty 52517 132060 1 0 3 0x80 select sshd 13105 142708 51774 73 3 0x100090 kqread syslogd 51774 343237 1 0 3 0x100082 netio syslogd 43091 491181 1 77 2 0x100010 dhclient *52050 22778 1 0 7 0 dhclient 33637 150641 0 0 2 0x14200 zerothread 92992 266248 0 0 3 0x14200 aiodoned aiodoned 84484 40886 0 0 3 0x14200 syncer update 3165 157806 0 0 3 0x14200 cleaner cleaner 94062 92504 0 0 3 0x14200 reaper reaper 98684 118247 0 0 3 0x14200 pgdaemon pagedaemon 16838 382781 0 0 3 0x14200 bored crynlk 968 228232 0 0 3 0x14200 bored crypto 26837 181596 0 0 3 0x40014200 acpi0 acpi0 41488 398599 0 0 3 0x14200 bored softnet 29865 487454 0 0 2 0x14200 systqmp 55203 405504 0 0 3 0x14200 bored systq 58716 280364 0 0 3 0x40014200 bored softclock 37011 235676 0 0 3 0x40014200 idle0 48717 453370 0 0 3 0x14200 bored smr 1 329162 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 9494 6778K 6778K 78643K 10592 0 pcb 13 8K 8K 78643K 13 0 rtable 105 3K 3K 78643K 198 0 ifaddr 39 10K 10K 78643K 43 0 counters 21 16K 16K 78643K 21 0 ioctlops 0 0K 2K 78643K 15 0 mount 1 1K 1K 78643K 1 0 vnodes 1221 77K 77K 78643K 1230 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 4 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1794 195K 288K 78643K 12646 0 file desc 5 13K 25K 78643K 52 0 proc 48 38K 54K 78643K 364 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 33 2K 2K 78643K 33 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 37 175K 175K 78643K 37 0 exec 0 0K 1K 78643K 181 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 105 21K 22K 78643K 954 0 UVM aobj 4 2K 2K 78643K 4 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 NDP 5 0K 0K 78643K 9 0 temp 60 3003K 3067K 78643K 1876 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 7 0 1 1 0 1 1 0 8 0 rtpcb 80 19 0 17 1 0 1 1 0 8 0 rtentry 112 48 0 4 2 0 2 2 0 8 0 unpcb 120 47 0 39 1 0 1 1 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpqe 32 61 0 61 2 1 1 1 0 8 1 tcpcb 544 14 0 9 1 0 1 1 0 8 0 inpcb 280 65 0 56 2 0 2 2 0 8 1 nd6 48 4 0 0 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 219 0 0 14 0 14 14 0 8 0 art_table 32 220 0 0 2 0 2 2 0 8 0 art_node 16 47 0 4 1 0 1 1 0 8 0 semapl 112 2 0 0 1 0 1 1 0 8 0 shmpl 112 2 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 1439 0 39 46 0 46 46 0 8 0 ffsino 240 1439 0 39 83 0 83 83 0 8 0 nchpl 144 1704 0 95 60 0 60 60 0 8 0 uvmvnodes 72 1492 0 0 28 0 28 28 0 8 0 vnodes 208 1492 0 0 79 0 79 79 0 8 0 namei 1024 4146 0 4146 1 0 1 1 0 8 1 scxspl 192 4802 0 4802 1 0 1 1 0 8 1 plimitpl 152 18 0 11 1 0 1 1 0 8 0 sigapl 432 223 0 210 2 0 2 2 0 8 0 futexpl 56 533 0 533 1 0 1 1 0 8 1 knotepl 112 53 0 34 1 0 1 1 0 8 0 kqueuepl 104 4 0 2 1 0 1 1 0 8 0 pipelkpl 16 71 0 61 1 0 1 1 0 8 0 pipepl 120 142 0 123 1 0 1 1 0 8 0 fdescpl 432 224 0 210 2 0 2 2 0 8 0 filepl 120 1199 0 1103 4 0 4 4 0 8 1 lockfpl 104 17 0 16 1 0 1 1 0 8 0 lockfspl 48 7 0 6 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 72 0 65 1 0 1 1 0 8 0 zombiepl 144 210 0 210 1 0 1 1 0 8 1 processpl 896 239 0 210 4 0 4 4 0 8 0 procpl 624 270 0 233 4 0 4 4 0 8 0 sockpl 400 131 0 112 4 0 4 4 0 8 2 mcl64k 65536 1 0 1 1 0 1 1 0 8 1 mcl16k 16384 1 0 1 1 0 1 1 0 8 1 mcl9k 9216 1 0 1 1 0 1 1 0 8 1 mcl4k 4096 11 0 11 2 1 1 1 0 8 1 mcl2k 2048 62023 0 61977 16 2 14 14 0 8 7 mtagpl 80 4 0 2 2 1 1 1 0 8 0 mbufpl 256 98405 0 98284 11 1 10 10 0 8 1 bufpl 280 4048 0 179 277 0 277 277 0 8 0 anonpl 16 37610 0 21571 67 2 65 65 0 107 0 amapchunkpl 152 1131 0 989 8 0 8 8 0 158 1 amappl16 192 986 0 118 44 0 44 44 0 8 0 amappl15 184 59 0 54 1 0 1 1 0 8 0 amappl14 176 27 0 23 1 0 1 1 0 8 0 amappl13 168 11 0 9 1 0 1 1 0 8 0 amappl12 160 5 0 5 1 1 0 1 0 8 0 amappl11 152 45 0 34 1 0 1 1 0 8 0 amappl10 144 15 0 12 1 0 1 1 0 8 0 amappl9 136 556 0 552 1 0 1 1 0 8 0 amappl8 128 107 0 87 1 0 1 1 0 8 0 amappl7 120 98 0 86 1 0 1 1 0 8 0 amappl6 112 51 0 47 1 0 1 1 0 8 0 amappl5 104 163 0 152 1 0 1 1 0 8 0 amappl4 96 445 0 417 1 0 1 1 0 8 0 amappl3 88 115 0 108 1 0 1 1 0 8 0 amappl2 80 1015 0 947 3 0 3 3 0 8 1 amappl1 72 13849 0 13438 26 11 15 20 0 8 6 amappl 80 492 0 447 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 3 0 0 1 0 1 1 0 8 0 uaddrrnd 24 224 0 210 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 224 0 210 1 0 1 1 0 8 0 vmmpekpl 168 5691 0 5668 2 0 2 2 0 8 0 vmmpepl 168 34786 0 32838 126 5 121 121 0 357 36 vmsppl 272 223 0 210 2 0 2 2 0 8 1 pdppl 4096 454 0 420 6 0 6 6 0 8 1 pvpl 32 126572 0 107557 156 0 156 156 0 265 2 pmappl 200 223 0 210 1 0 1 1 0 8 0 extentpl 40 46 0 29 1 0 1 1 0 8 0 phpool 112 152 0 6 5 0 5 5 0 8 0