g Ăg Ăpanic: receive 1: so 0xfffffd805e558190, so_type 3, sb_cc 48 Stopped at db_enter+0x18: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *403540 55840 0 0 0 0 dhclient db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic(ffffffff821cebd3) at panic+0x15c sys/kern/subr_prf.c:207 soreceive(fffffd805e558190,0,ffff80001d772488,0,0,ffff80001d772394) at soreceive+0x16ac sys/kern/uipc_socket.c:823 soo_read(fffffd80633f24b0,ffff80001d772488,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff80001d739008,6,ffff80001d772488,0,ffff80001d772570) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff80001d739008,ffff80001d772520,ffff80001d772570) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff80001d7725f0) at syscall+0x507 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffff6780, 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 1: so 0xfffffd805e558190, so_type 3, sb_cc 48 ddb> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic(ffffffff821cebd3) at panic+0x15c sys/kern/subr_prf.c:207 soreceive(fffffd805e558190,0,ffff80001d772488,0,0,ffff80001d772394) at soreceive+0x16ac sys/kern/uipc_socket.c:823 soo_read(fffffd80633f24b0,ffff80001d772488,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff80001d739008,6,ffff80001d772488,0,ffff80001d772570) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff80001d739008,ffff80001d772520,ffff80001d772570) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff80001d7725f0) at syscall+0x507 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffff6780, count: -8 ddb> show registers rdi 0 rsi 0x1 rbp 0xffff80001d7721d0 rbx 0xffff80001d772280 rdx 0x2 rcx 0 rax 0x1 r8 0xffffffff81552bdf kprintf+0x15f r9 0x1 r10 0x2 r11 0x5be72325f4b09234 r12 0x3000000008 r13 0xffff80001d7721e0 r14 0x100 r15 0x1 rip 0xffffffff8122eec8 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff80001d7721c0 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb> show proc PROC (dhclient) pid=403540 stat=onproc flags process=0 proc=0 pri=50, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff80001d73a5f8,0xffff80001d739288 process=0xffff8000ffffa3a8 user=0xffff80001d76d000, vmspace=0xfffffd806bc09550 estcpu=0, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 70919 274488 23434 0 2 0 syz-executor.1 70919 61722 23434 0 2 0x4000000 syz-executor.1 80340 176833 0 0 3 0x14200 bored sosplice 16921 226917 62600 0 2 0x2 syz-executor.0 23434 518632 62600 0 3 0x82 nanosleep syz-executor.1 62600 152857 86627 0 3 0x82 thrsleep syz-fuzzer 62600 100380 86627 0 3 0x4000082 nanosleep syz-fuzzer 62600 71515 86627 0 3 0x4000082 thrsleep syz-fuzzer 62600 271690 86627 0 3 0x4000082 thrsleep syz-fuzzer 62600 368650 86627 0 3 0x4000082 kqread syz-fuzzer 62600 113601 86627 0 3 0x4000082 thrsleep syz-fuzzer 62600 375459 86627 0 3 0x4000082 thrsleep syz-fuzzer 86627 108925 55536 0 3 0x10008a pause ksh 55536 415801 7157 0 3 0x92 select sshd 92169 403267 1 0 3 0x100083 ttyin getty 7157 167816 1 0 3 0x80 select sshd 55183 486190 32961 73 3 0x100090 kqread syslogd 32961 166228 1 0 3 0x100082 netio syslogd 79188 405482 1 77 3 0x100090 poll dhclient *55840 403540 1 0 7 0 dhclient 28972 512726 0 0 3 0x14200 bored smr 78763 30896 0 0 2 0x14200 zerothread 30532 327625 0 0 3 0x14200 aiodoned aiodoned 83693 482706 0 0 3 0x14200 syncer update 35004 91010 0 0 3 0x14200 cleaner cleaner 22340 491271 0 0 3 0x14200 reaper reaper 3333 433186 0 0 3 0x14200 pgdaemon pagedaemon 85996 100451 0 0 3 0x14200 bored crynlk 51741 120286 0 0 3 0x14200 bored crypto 78544 458956 0 0 3 0x40014200 acpi0 acpi0 5269 491855 0 0 3 0x14200 bored softnet 71151 397816 0 0 3 0x14200 bored systqmp 35590 318003 0 0 3 0x14200 bored systq 51988 480913 0 0 3 0x40014200 bored softclock 56865 487716 0 0 3 0x40014200 idle0 1 501906 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 9484 6352K 7043K 78643K 11670 0 pcb 13 8K 8K 78643K 103 0 rtable 107 4K 4K 78643K 350 0 ifaddr 63 13K 14K 78643K 120 0 counters 21 16K 16K 78643K 28 0 ioctlops 0 0K 2K 78643K 45 0 iov 0 0K 16K 78643K 193 0 mount 1 1K 1K 78643K 1 0 vnodes 1228 77K 77K 78643K 1535 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 8 0 VM map 2 0K 0K 78643K 2 0 sem 12 0K 1K 78643K 48 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1809 195K 288K 78643K 12938 0 file desc 5 13K 25K 78643K 403 0 sigio 0 0K 0K 78643K 6 0 proc 50 38K 54K 78643K 409 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 1K 78643K 592 0 in_multi 51 2K 3K 78643K 120 0 ether_multi 1 0K 0K 78643K 16 0 mrt 1 0K 0K 78643K 8 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 219 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 137 88K 88K 78643K 1797 0 UVM aobj 15 2K 2K 78643K 16 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 127 0 NDP 10 0K 0K 78643K 25 0 temp 92 3039K 3110K 78643K 8610 0 kqueue 3 4K 14K 78643K 45 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 9 0 1 1 0 1 1 0 8 0 rtpcb 80 49 0 47 1 0 1 1 0 8 0 rtentry 112 77 0 35 2 0 2 2 0 8 0 unpcb 120 233 0 225 1 0 1 1 0 8 0 syncache 264 12 0 12 2 2 0 1 0 8 0 tcpqe 32 78 0 78 1 1 0 1 0 8 0 tcpcb 544 187 0 182 1 0 1 1 0 8 0 inpcb 280 826 0 818 3 1 2 2 0 8 1 rttmr 72 2 0 2 1 1 0 1 0 8 0 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 14 0 12 1 0 1 1 0 8 0 ppxss 1128 3 0 3 3 2 1 1 0 8 1 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 357 0 186 16 1 15 15 0 8 1 art_table 32 358 0 186 2 0 2 2 0 8 0 art_node 16 76 0 36 1 0 1 1 0 8 0 sysvmsgpl 40 10 0 2 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 46 0 36 1 0 1 1 0 8 0 shmpl 112 14 0 2 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 2011 0 616 88 0 88 88 0 8 0 ffsino 240 2011 0 616 83 0 83 83 0 8 0 nchpl 144 2810 0 1209 60 0 60 60 0 8 0 uvmvnodes 72 2304 0 0 42 0 42 42 0 8 0 vnodes 208 2304 0 0 122 0 122 122 0 8 0 namei 1024 7578 0 7577 2 1 1 1 0 8 0 vcpupl 1984 9 0 0 2 0 2 2 0 8 0 vmpool 528 12 0 3 1 0 1 1 0 8 0 scxspl 192 8471 0 8471 1 0 1 1 0 8 1 plimitpl 152 46 0 39 1 0 1 1 0 8 0 sigapl 424 590 0 561 4 0 4 4 0 8 0 futexpl 56 8626 0 8626 2 1 1 1 0 8 1 knotepl 112 118 0 99 1 0 1 1 0 8 0 kqueuepl 144 86 0 82 1 0 1 1 0 8 0 pipelkpl 16 126 0 116 1 0 1 1 0 8 0 pipepl 120 252 0 233 1 0 1 1 0 8 0 fdescpl 432 575 0 561 2 0 2 2 0 8 0 filepl 120 3789 0 3693 4 0 4 4 0 8 1 lockfpl 104 105 0 104 1 0 1 1 0 8 0 lockfspl 48 42 0 41 1 0 1 1 0 8 0 sessionpl 112 17 0 7 1 0 1 1 0 8 0 pgrppl 48 21 0 11 1 0 1 1 0 8 0 ucredpl 96 374 0 367 1 0 1 1 0 8 0 zombiepl 144 561 0 561 1 0 1 1 0 8 1 processpl 920 590 0 561 4 0 4 4 0 8 0 procpl 624 1072 0 1036 5 1 4 4 0 8 1 sosppl 128 12 0 12 2 1 1 1 0 8 1 sockpl 400 1111 0 1093 4 1 3 4 0 8 1 mcl64k 65536 40 0 38 1 0 1 1 0 8 0 mcl16k 16384 1 0 1 1 0 1 1 0 8 1 mcl12k 12288 6 0 6 3 2 1 1 0 8 1 mcl9k 9216 7 0 7 3 2 1 1 0 8 1 mcl8k 8192 3 0 3 2 1 1 1 0 8 1 mcl4k 4096 43 0 43 2 1 1 1 0 8 1 mcl2k2 2112 1 0 1 1 1 0 1 0 8 0 mcl2k 2048 64494 0 64455 15 9 6 13 0 8 0 mtagpl 80 62 0 16 2 1 1 1 0 8 0 mbufpl 256 106670 0 106242 40 5 35 35 0 8 1 bufpl 280 4362 0 135 302 0 302 302 0 8 0 anonpl 16 65883 0 51350 76 3 73 73 0 107 13 amapchunkpl 152 3030 0 2891 21 13 8 20 0 158 2 amappl16 192 2729 0 1922 52 3 49 51 0 8 8 amappl15 184 179 0 175 1 0 1 1 0 8 0 amappl14 176 26 0 20 1 0 1 1 0 8 0 amappl13 168 24 0 23 1 0 1 1 0 8 0 amappl12 160 199 0 193 1 0 1 1 0 8 0 amappl11 152 239 0 229 1 0 1 1 0 8 0 amappl10 144 14 0 10 1 0 1 1 0 8 0 amappl9 136 378 0 377 1 0 1 1 0 8 0 amappl8 128 337 0 295 2 0 2 2 0 8 0 amappl7 120 108 0 96 1 0 1 1 0 8 0 amappl6 112 217 0 210 1 0 1 1 0 8 0 amappl5 104 503 0 490 1 0 1 1 0 8 0 amappl4 96 421 0 393 1 0 1 1 0 8 0 amappl3 88 111 0 106 1 0 1 1 0 8 0 amappl2 80 3929 0 3861 2 0 2 2 0 8 0 amappl1 72 19734 0 19321 22 13 9 17 0 8 0 amappl 80 1307 0 1260 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 15 0 1 1 0 1 1 0 8 0 uaddrrnd 24 587 0 564 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 587 0 564 1 0 1 1 0 8 0 vmmpekpl 168 7340 0 7310 2 0 2 2 0 8 0 vmmpepl 168 74519 0 72576 116 17 99 101 0 357 13 vmsppl 272 586 0 564 2 0 2 2 0 8 0 pdppl 4096 1180 0 1137 6 0 6 6 0 8 0 pvpl 32 205169 0 188211 178 3 175 175 0 265 36 pmappl 200 586 0 564 2 0 2 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 274 0 22 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(ffffffff821cebd3) at panic+0x15c sys/kern/subr_prf.c:207 soreceive(fffffd805e558190,0,ffff80001d772488,0,0,ffff80001d772394) at soreceive+0x16ac sys/kern/uipc_socket.c:823 soo_read(fffffd80633f24b0,ffff80001d772488,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff80001d739008,6,ffff80001d772488,0,ffff80001d772570) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff80001d739008,ffff80001d772520,ffff80001d772570) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff80001d7725f0) at syscall+0x507 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffff6780, 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(ffffffff821cebd3) at panic+0x15c sys/kern/subr_prf.c:207 soreceive(fffffd805e558190,0,ffff80001d772488,0,0,ffff80001d772394) at soreceive+0x16ac sys/kern/uipc_socket.c:823 soo_read(fffffd80633f24b0,ffff80001d772488,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff80001d739008,6,ffff80001d772488,0,ffff80001d772570) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff80001d739008,ffff80001d772520,ffff80001d772570) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff80001d7725f0) at syscall+0x507 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffff6780, count: -8