login: panic: receive 1a: so 0xfffffd805e566190, so_type 3, m 0xfffffd80582e0b00, m_type 0 Stopped at db_enter+0x18: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *343851 3571 0 0 0 0 dhclient db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic(ffffffff821b7aef) at panic+0x15c sys/kern/subr_prf.c:207 soreceive(fffffd805e566190,0,ffff80001d372298,0,0,ffff80001d3721a4) at soreceive+0x170a sys/kern/uipc_socket.c:977 soo_read(fffffd8061ff0348,ffff80001d372298,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff80001d339758,6,ffff80001d372298,0,ffff80001d372380) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff80001d339758,ffff80001d372330,ffff80001d372380) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff80001d372400) at syscall+0x507 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffff9ee0, 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 0xfffffd805e566190, so_type 3, m 0xfffffd80582e0b00, m_type 0 ddb> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic(ffffffff821b7aef) at panic+0x15c sys/kern/subr_prf.c:207 soreceive(fffffd805e566190,0,ffff80001d372298,0,0,ffff80001d3721a4) at soreceive+0x170a sys/kern/uipc_socket.c:977 soo_read(fffffd8061ff0348,ffff80001d372298,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff80001d339758,6,ffff80001d372298,0,ffff80001d372380) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff80001d339758,ffff80001d372330,ffff80001d372380) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff80001d372400) at syscall+0x507 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffff9ee0, count: -8 ddb> show registers rdi 0 rsi 0x1 rbp 0xffff80001d371fe0 rbx 0xffff80001d372090 rdx 0x2 rcx 0 rax 0 r8 0xffff80001d371fa0 r9 0x1 r10 0 r11 0xee4a360f615d018f r12 0x3000000008 r13 0xffff80001d371ff0 r14 0x100 r15 0x1 rip 0xffffffff8209c498 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff80001d371fd0 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb> show proc PROC (dhclient) pid=343851 stat=onproc flags process=0 proc=0 pri=24, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff80001d33a5f8,0xffff80001d3399d8 process=0xffff8000ffffaa90 user=0xffff80001d36d000, 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 86870 337644 408 0 2 0 syz-executor.1 86870 428900 408 0 2 0x4000000 syz-executor.1 34783 133710 83242 0 2 0 syz-executor.0 34783 386300 83242 0 2 0x4000000 syz-executor.0 83242 127597 62609 0 3 0x82 nanosleep syz-executor.0 408 210010 62609 0 3 0x82 nanosleep syz-executor.1 62609 251356 95343 0 3 0x82 thrsleep syz-fuzzer 62609 418011 95343 0 2 0x4000002 syz-fuzzer 62609 21035 95343 0 3 0x4000082 thrsleep syz-fuzzer 62609 27284 95343 0 3 0x4000082 thrsleep syz-fuzzer 62609 135513 95343 0 3 0x4000082 thrsleep syz-fuzzer 62609 291285 95343 0 3 0x4000082 kqread syz-fuzzer 62609 200548 95343 0 3 0x4000082 thrsleep syz-fuzzer 95343 302785 96553 0 3 0x10008a pause ksh 96553 393643 2956 0 3 0x92 select sshd 8581 496028 1 0 3 0x100083 ttyin getty 2956 186041 1 0 3 0x80 select sshd 59257 26863 29319 73 3 0x100090 kqread syslogd 29319 238407 1 0 3 0x100082 netio syslogd 85180 270318 1 77 2 0x100010 dhclient * 3571 343851 1 0 7 0 dhclient 57083 333232 0 0 2 0x14200 zerothread 13203 260528 0 0 3 0x14200 aiodoned aiodoned 99972 314251 0 0 3 0x14200 syncer update 69819 180402 0 0 3 0x14200 cleaner cleaner 4401 321315 0 0 3 0x14200 reaper reaper 98472 11481 0 0 3 0x14200 pgdaemon pagedaemon 47613 234843 0 0 3 0x14200 bored crynlk 81494 173612 0 0 3 0x14200 bored crypto 62340 405453 0 0 3 0x40014200 acpi0 acpi0 18627 17403 0 0 3 0x14200 bored softnet 44221 435014 0 0 3 0x14200 bored systqmp 11853 482807 0 0 3 0x14200 bored systq 26366 64902 0 0 3 0x40014200 bored softclock 82585 24754 0 0 3 0x40014200 idle0 91774 268971 0 0 3 0x14200 bored smr 1 79932 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 9457 6328K 6328K 78643K 10555 0 pcb 13 8K 8K 78643K 21 0 rtable 105 3K 3K 78643K 191 0 ifaddr 44 10K 10K 78643K 48 0 counters 21 16K 16K 78643K 21 0 ioctlops 0 0K 2K 78643K 15 0 iov 0 0K 8K 78643K 2 0 mount 1 1K 1K 78643K 1 0 vnodes 1216 76K 76K 78643K 1223 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 2 0K 0K 78643K 2 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1794 195K 288K 78643K 12646 0 file desc 6 17K 25K 78643K 50 0 proc 48 38K 54K 78643K 359 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 2 0 in_multi 33 2K 2K 78643K 36 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 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 97 21K 21K 78643K 944 0 UVM aobj 2 2K 2K 78643K 2 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 5 0 NDP 10 0K 0K 78643K 10 0 temp 69 3016K 3080K 78643K 2165 0 kqueue 3 4K 9K 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 19 0 17 1 0 1 1 0 8 0 rtentry 112 45 0 1 2 0 2 2 0 8 0 unpcb 120 39 0 30 1 0 1 1 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpqe 32 497 0 497 1 0 1 1 0 8 1 tcpcb 544 14 0 10 1 0 1 1 0 8 0 inpcb 280 48 0 41 1 0 1 1 0 8 0 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 256 189 0 0 12 0 12 12 0 8 0 art_table 32 190 0 0 2 0 2 2 0 8 0 art_node 16 44 0 4 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 1442 0 41 46 0 46 46 0 8 0 ffsino 240 1442 0 41 83 0 83 83 0 8 0 nchpl 144 1703 0 91 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 4093 0 4092 1 0 1 1 0 8 0 scxspl 192 4777 0 4777 1 0 1 1 0 8 1 plimitpl 152 14 0 7 1 0 1 1 0 8 0 sigapl 432 221 0 207 2 0 2 2 0 8 0 futexpl 56 409 0 409 1 0 1 1 0 8 1 knotepl 112 60 0 41 1 0 1 1 0 8 0 kqueuepl 144 8 0 6 1 0 1 1 0 8 0 pipelkpl 16 67 0 57 1 0 1 1 0 8 0 pipepl 120 134 0 115 1 0 1 1 0 8 0 fdescpl 432 222 0 207 2 0 2 2 0 8 0 filepl 120 1115 0 1019 4 0 4 4 0 8 1 lockfpl 104 14 0 13 1 0 1 1 0 8 0 lockfspl 48 6 0 5 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 60 0 53 1 0 1 1 0 8 0 zombiepl 144 207 0 207 1 0 1 1 0 8 1 processpl 896 236 0 207 4 0 4 4 0 8 0 procpl 624 261 0 224 3 0 3 3 0 8 0 sockpl 400 106 0 88 3 0 3 3 0 8 0 mcl64k 65536 1 0 1 1 0 1 1 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 2 0 2 1 0 1 1 0 8 1 mcl4k 4096 8 0 8 1 1 0 1 0 8 0 mcl2k 2048 62822 0 62762 22 6 16 20 0 8 8 mtagpl 80 2 0 2 1 1 0 1 0 8 0 mbufpl 256 99627 0 99531 13 1 12 12 0 8 4 bufpl 280 3984 0 161 274 0 274 274 0 8 0 anonpl 16 38023 0 22296 66 1 65 65 0 107 0 amapchunkpl 152 1019 0 875 9 0 9 9 0 158 1 amappl16 192 1092 0 233 44 0 44 44 0 8 1 amappl15 184 1 0 0 1 0 1 1 0 8 0 amappl14 176 11 0 7 2 1 1 1 0 8 0 amappl13 168 24 0 23 1 0 1 1 0 8 0 amappl12 160 9 0 9 1 1 0 1 0 8 0 amappl11 152 69 0 55 1 0 1 1 0 8 0 amappl10 144 16 0 12 1 0 1 1 0 8 0 amappl9 136 383 0 379 1 0 1 1 0 8 0 amappl8 128 274 0 258 1 0 1 1 0 8 0 amappl7 120 106 0 96 1 0 1 1 0 8 0 amappl6 112 33 0 27 1 0 1 1 0 8 0 amappl5 104 139 0 128 1 0 1 1 0 8 0 amappl4 96 451 0 419 1 0 1 1 0 8 0 amappl3 88 115 0 107 1 0 1 1 0 8 0 amappl2 80 948 0 877 3 0 3 3 0 8 1 amappl1 72 13789 0 13366 26 9 17 20 0 8 8 amappl 80 498 0 452 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 1 0 0 1 0 1 1 0 8 0 uaddrrnd 24 222 0 207 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 222 0 207 1 0 1 1 0 8 0 vmmpekpl 168 5646 0 5621 2 0 2 2 0 8 0 vmmpepl 168 34349 0 32338 155 5 150 150 0 357 62 vmsppl 272 221 0 207 2 0 2 2 0 8 1 pdppl 4096 450 0 414 6 0 6 6 0 8 1 pvpl 32 126052 0 107328 157 0 157 157 0 265 4 pmappl 200 221 0 207 1 0 1 1 0 8 0 extentpl 40 46 0 29 1 0 1 1 0 8 0 phpool 112 156 0 10 5 0 5 5 0 8 0