login: panic: receive 1a: so 0xfffffd8069540190, so_type 3, m 0xfffffd8059bc4c00, m_type 0 Stopped at db_enter+0x18: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *288484 54057 0 0 0 0 dhclient db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic(ffffffff823ce121) at panic+0x15c sys/kern/subr_prf.c:207 soreceive(fffffd8069540190,0,ffff80001d6e5678,0,0,ffff80001d6e5584) at soreceive+0x170a sys/kern/uipc_socket.c:983 soo_read(fffffd805eab8348,ffff80001d6e5678,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff80001d6a99c8,6,ffff80001d6e5678,0,ffff80001d6e5760) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff80001d6a99c8,ffff80001d6e5710,ffff80001d6e5760) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff80001d6e57e0) at syscall+0x507 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffff4bb0, 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 0xfffffd8069540190, so_type 3, m 0xfffffd8059bc4c00, m_type 0 ddb> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic(ffffffff823ce121) at panic+0x15c sys/kern/subr_prf.c:207 soreceive(fffffd8069540190,0,ffff80001d6e5678,0,0,ffff80001d6e5584) at soreceive+0x170a sys/kern/uipc_socket.c:983 soo_read(fffffd805eab8348,ffff80001d6e5678,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff80001d6a99c8,6,ffff80001d6e5678,0,ffff80001d6e5760) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff80001d6a99c8,ffff80001d6e5710,ffff80001d6e5760) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff80001d6e57e0) at syscall+0x507 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffff4bb0, count: -8 ddb> show registers rdi 0 rsi 0x1 rbp 0xffff80001d6e53c0 rbx 0xffff80001d6e5470 rdx 0x2 rcx 0 rax 0x1 r8 0xffffffff8201635f kprintf+0x15f r9 0x1 r10 0x2 r11 0xa8b28b0bb6065f27 r12 0x3000000008 r13 0xffff80001d6e53d0 r14 0x100 r15 0x1 rip 0xffffffff813dd2a8 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff80001d6e53b0 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb> show proc PROC (dhclient) pid=288484 stat=onproc flags process=0 proc=0 pri=24, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff80001d6aa868,0xffff80001d6a94f8 process=0xffff80001d6c4e90 user=0xffff80001d6e0000, vmspace=0xfffffd806bc0a770 estcpu=0, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 42779 406860 25166 0 2 0 syz-executor.1 42779 310184 25166 0 3 0x4000000 smrbar syz-executor.1 75772 337445 0 0 3 0x14200 bored sosplice 25166 36257 21761 0 3 0x82 nanosleep syz-executor.1 43015 322837 21761 0 2 0x2 syz-executor.0 21761 436558 39835 0 3 0x82 thrsleep syz-fuzzer 21761 361729 39835 0 2 0x4000482 syz-fuzzer 21761 129215 39835 0 3 0x4000082 thrsleep syz-fuzzer 21761 67105 39835 0 3 0x4000082 thrsleep syz-fuzzer 21761 324901 39835 0 3 0x4000082 thrsleep syz-fuzzer 21761 413229 39835 0 3 0x4000082 kqread syz-fuzzer 21761 289739 39835 0 3 0x4000082 thrsleep syz-fuzzer 39835 337140 17793 0 3 0x10008a pause ksh 17793 455246 6495 0 3 0x92 select sshd 53296 95677 1 0 3 0x100083 ttyin getty 6495 157318 1 0 3 0x80 select sshd 46708 54432 79774 73 3 0x100090 kqread syslogd 79774 59834 1 0 3 0x100082 netio syslogd 26398 53745 1 77 2 0x100010 dhclient *54057 288484 1 0 7 0 dhclient 6052 381201 0 0 3 0x14200 bored smr 94030 187397 0 0 2 0x14200 zerothread 77729 31961 0 0 3 0x14200 aiodoned aiodoned 76601 421817 0 0 3 0x14200 syncer update 46393 269355 0 0 3 0x14200 cleaner cleaner 18030 334786 0 0 3 0x14200 reaper reaper 47018 93993 0 0 3 0x14200 pgdaemon pagedaemon 43010 256180 0 0 3 0x14200 bored crynlk 29188 261600 0 0 3 0x14200 bored crypto 72208 104980 0 0 3 0x40014200 acpi0 acpi0 43289 257296 0 0 2 0x14200 softnet 90605 124949 0 0 3 0x14200 bored systqmp 84468 416069 0 0 3 0x14200 bored systq 23016 62680 0 0 3 0x40014200 bored softclock 16479 282071 0 0 3 0x40014200 idle0 1 151394 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 9460 6326K 6972K 78643K 10767 0 pcb 13 8K 8K 78643K 35 0 rtable 105 3K 3K 78643K 191 0 ifaddr 44 10K 10K 78643K 46 0 counters 22 16K 16K 78643K 22 0 ioctlops 0 0K 2K 78643K 24 0 iov 0 0K 8K 78643K 2 0 mount 1 1K 1K 78643K 1 0 vnodes 1229 77K 77K 78643K 1275 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 3 0 VM map 2 0K 0K 78643K 2 0 sem 12 1K 1K 78643K 19 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1809 195K 288K 78643K 12938 0 file desc 5 13K 25K 78643K 79 0 sigio 0 0K 0K 78643K 2 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 ip_moptions 0 0K 0K 78643K 4 0 in_multi 33 2K 2K 78643K 37 0 ether_multi 1 0K 0K 78643K 3 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 55 254K 254K 78643K 55 0 exec 0 0K 1K 78643K 185 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 121 22K 23K 78643K 1042 0 UVM aobj 5 2K 2K 78643K 5 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 8 0 NDP 6 0K 0K 78643K 10 0 temp 70 3848K 3912K 78643K 1927 0 kqueue 3 4K 8K 78643K 9 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 45 0 37 1 0 1 1 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpqe 32 594 0 594 1 1 0 1 0 8 0 tcpcb 544 41 0 36 1 0 1 1 0 8 0 ipq 40 1 0 0 1 0 1 1 0 8 0 ipqe 40 2 0 1 1 0 1 1 0 8 0 inpcb 296 122 0 113 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 2 0 0 1 0 1 1 0 8 0 semupl 112 5 0 5 2 1 1 1 0 8 1 semapl 112 11 0 1 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 dino2pl 256 1477 0 77 88 0 88 88 0 8 0 ffsino 240 1477 0 77 83 0 83 83 0 8 0 nchpl 144 1756 0 152 60 0 60 60 0 8 0 uvmvnodes 72 1566 0 0 29 0 29 29 0 8 0 vnodes 208 1566 0 0 83 0 83 83 0 8 0 namei 1024 4436 0 4435 2 1 1 1 0 8 0 vcpupl 1984 2 0 0 1 0 1 1 0 8 0 vmpool 528 2 0 0 1 0 1 1 0 8 0 scxspl 192 5091 0 5091 1 0 1 1 0 8 1 plimitpl 152 20 0 13 1 0 1 1 0 8 0 sigapl 424 266 0 237 4 0 4 4 0 8 0 futexpl 56 997 0 997 2 1 1 1 0 8 1 knotepl 112 69 0 50 1 0 1 1 0 8 0 kqueuepl 144 18 0 16 1 0 1 1 0 8 0 pipepl 272 76 0 66 1 0 1 1 0 8 0 fdescpl 432 251 0 237 2 0 2 2 0 8 0 filepl 120 1326 0 1229 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 96 109 0 102 1 0 1 1 0 8 0 zombiepl 144 237 0 237 1 0 1 1 0 8 1 processpl 928 266 0 237 4 0 4 4 0 8 0 procpl 624 342 0 306 5 1 4 4 0 8 1 sosppl 128 2 0 2 1 0 1 1 0 8 1 sockpl 400 186 0 167 3 0 3 3 0 8 1 mcl16k 16384 1 0 1 1 1 0 1 0 8 0 mcl12k 12288 1 0 1 1 0 1 1 0 8 1 mcl8k 8192 4 0 4 2 1 1 1 0 8 1 mcl4k 4096 19 0 19 3 2 1 1 0 8 1 mcl2k 2048 92946 0 92884 25 16 9 18 0 8 0 mtagpl 96 30 0 2 2 1 1 1 0 8 0 mbufpl 256 147069 0 146904 16 2 14 14 0 8 0 bufpl 280 3329 0 126 229 0 229 229 0 8 0 anonpl 16 49733 0 32031 87 1 86 86 0 107 14 amapchunkpl 152 1117 0 975 8 1 7 8 0 158 1 amappl16 192 1708 0 740 59 1 58 59 0 8 8 amappl15 184 24 0 22 1 0 1 1 0 8 0 amappl14 176 21 0 18 1 0 1 1 0 8 0 amappl13 168 26 0 23 1 0 1 1 0 8 0 amappl12 160 16 0 12 1 0 1 1 0 8 0 amappl11 152 45 0 35 1 0 1 1 0 8 0 amappl10 144 37 0 30 1 0 1 1 0 8 0 amappl9 136 398 0 395 1 0 1 1 0 8 0 amappl8 128 327 0 286 2 0 2 2 0 8 0 amappl7 120 108 0 95 1 0 1 1 0 8 0 amappl6 112 30 0 22 1 0 1 1 0 8 0 amappl5 104 184 0 172 1 0 1 1 0 8 0 amappl4 96 419 0 391 1 0 1 1 0 8 0 amappl3 88 101 0 96 1 0 1 1 0 8 0 amappl2 80 1205 0 1139 2 0 2 2 0 8 0 amappl1 72 14701 0 14277 24 14 10 17 0 8 1 amappl 80 573 0 530 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 4 0 0 1 0 1 1 0 8 0 uaddrrnd 24 253 0 237 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 253 0 237 1 0 1 1 0 8 0 vmmpekpl 168 5853 0 5825 2 0 2 2 0 8 0 vmmpepl 168 38908 0 36799 126 19 107 120 0 357 14 vmsppl 272 252 0 237 3 1 2 2 0 8 0 pdppl 4096 512 0 476 6 1 5 6 0 8 0 pvpl 32 146276 0 126126 198 1 197 197 0 265 32 pmappl 200 252 0 237 1 0 1 1 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 257 0 28 7 0 7 7 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(ffffffff823ce121) at panic+0x15c sys/kern/subr_prf.c:207 soreceive(fffffd8069540190,0,ffff80001d6e5678,0,0,ffff80001d6e5584) at soreceive+0x170a sys/kern/uipc_socket.c:983 soo_read(fffffd805eab8348,ffff80001d6e5678,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff80001d6a99c8,6,ffff80001d6e5678,0,ffff80001d6e5760) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff80001d6a99c8,ffff80001d6e5710,ffff80001d6e5760) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff80001d6e57e0) at syscall+0x507 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffff4bb0, 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(ffffffff823ce121) at panic+0x15c sys/kern/subr_prf.c:207 soreceive(fffffd8069540190,0,ffff80001d6e5678,0,0,ffff80001d6e5584) at soreceive+0x170a sys/kern/uipc_socket.c:983 soo_read(fffffd805eab8348,ffff80001d6e5678,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff80001d6a99c8,6,ffff80001d6e5678,0,ffff80001d6e5760) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff80001d6a99c8,ffff80001d6e5710,ffff80001d6e5760) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff80001d6e57e0) at syscall+0x507 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffff4bb0, count: -8