SI !OC<2’ƒýs~U[¾~ÿ¼ ¢~ÀÿjÊˆÒJ™ëø¥`üjc+[ÜÃuCðHŽŸ6y¿©CöÜ4.o÷‰ÞÑ¢ÒYViÓ=ùØ€Û¿Ocãµ‡¹ú†iû}¬1B»B–MÀôôMÍ$G1TÌ)è’'ÿ9´nÊÜÙÀí÷(„êçdÁrRÞfc,YÎ})îI©§®Á@#ƒÛ„ÊKr)] $®÷ÃÔ^t„,bc$ÂÝ'fºÁ¤,.’–›¬mxß|ãUA¸#›G;Šþùµ…m/IëœªXæ“ÌXÍ‚Že†ÃÂqðZ\HÂê“ó˜2}ª½µ¦øFg“›9Ìê® ÿœ÷ä_B®(5•%¤n/.ÅÚÁ:Ó¬Át]m°òF}—¸“DšT$óI '(õ ¿Bš¬i,,ŽËkyÝ.€m’DñJUÄºëpIÖ3ª:P+ëáZÛäa˜¿‚´œJÃ&ê_!—Y–C•²³ysn_BÈÞî°‚VH‡,‚~ÐhØÏ…#N”«à>ò¢fÆ"c¼yU-Aúš§tÂ#³Š'‡ÄÆÐ+’ÚSñCËŽ¯6ÿ:eùŸ^„Ú®(#ixý\HJ"×’Œßõ/FA#Ëó¬[»Ä‡6NèA8Bgøè`ö§ÑØvõþwá}K µv%¶Êç‡+íµS*Q‰ˆ¸gvã½FE’Ã.‚áä÷VÆÔ´v»Ñü‘eÌ€<èªJ¡¯ôžÉ¿{À¥êüŠüï›çþxDB.âæÔN³“4‡ˆà½}‡ŒÍÓ‰øÏ+§îd~§bÛ`Š‡æãÏÀ½Âžru)½c¶íáÿWoÉÆM%ža—Ì?_ìXdôðÕª´:•[v£¿úä—8¤d÷‚T¢ú+07XJ€ á¤8à›Hó7\Ó}3TŽâ1†ƒb—Ù1ER¾J?s§Âê™ñ g‚$¨†2$Á)„ª197ýª‚[ÆCˆÂdŽê€>panic: receive 3: so 0xffffff002d065978, so_type 1, m 0xffffff00354d3f00, m_type 6 Stopped at db_enter+0xa: popq %rbp TID PID UID PRFLAGS PFLAGS CPU COMMAND *522671 50223 0 0 0x4000000 0 syz-executor0 db_enter() at db_enter+0xa sys/arch/amd64/amd64/db_interface.c:399 panic() at panic+0x147 sys/kern/subr_prf.c:208 soreceive(0,ffffff002d065978,ffff800014af6040,1241,ffff800014af60d0,40) at soreceive+0x1288 sys/kern/uipc_socket.c:933 recvit(ffff800014af6100,ffff800014af6208,ffff800014af61f0,ffff8000149f4978,0) at recvit+0x28c sys/kern/uipc_syscalls.c:822 sys_recvmsg(ffff800014af6290,ffff8000149f4978,ffff800014a15cb0) at sys_recvmsg+0x120 sys/kern/uipc_syscalls.c:758 syscall(0) at syscall+0x3e4 Xsyscall(6,0,ffffffffffffffc1,0,3,569a4349010) at Xsyscall+0x128 end of kernel end trace frame: 0x56bca50a630, count: 8 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> show panic receive 3: so 0xffffff002d065978, so_type 1, m 0xffffff00354d3f00, m_type 6 ddb> trace db_enter() at db_enter+0xa sys/arch/amd64/amd64/db_interface.c:399 panic() at panic+0x147 sys/kern/subr_prf.c:208 soreceive(0,ffffff002d065978,ffff800014af6040,1241,ffff800014af60d0,40) at soreceive+0x1288 sys/kern/uipc_socket.c:933 recvit(ffff800014af6100,ffff800014af6208,ffff800014af61f0,ffff8000149f4978,0) at recvit+0x28c sys/kern/uipc_syscalls.c:822 sys_recvmsg(ffff800014af6290,ffff8000149f4978,ffff800014a15cb0) at sys_recvmsg+0x120 sys/kern/uipc_syscalls.c:758 syscall(0) at syscall+0x3e4 Xsyscall(6,0,ffffffffffffffc1,0,3,569a4349010) at Xsyscall+0x128 end of kernel end trace frame: 0x56bca50a630, count: -7 ddb> show registers rdi 0xffffffff81e39300 kprintf_mutex rsi 0xffffffff81804899 db_enter+0x9 rbp 0xffff800014af5e90 rbx 0xffff800014af5f30 rdx 0xffff800002ace000 rcx 0x2553 __ALIGN_SIZE+0x1553 rax 0xffff800002ace000 r8 0xffff800014af5e60 r9 0 r10 0x6eee31063fe2379e r11 0xffffffff81782140 x86_bus_space_io_read_1 r12 0x3000000008 r13 0xffff800014af5ea0 r14 0x100 r15 0xffffffff81bc2188 cmd0646_9_tim_udma+0x1ca7 rip 0xffffffff8180489a db_enter+0xa cs 0x8 rflags 0x206 rsp 0xffff800014af5e90 ss 0x10 db_enter+0xa: popq %rbp ddb> show proc PROC (syz-executor0) pid=522671 stat=onproc flags process=0 proc=4000000 pri=24, usrpri=82, nice=20 forw=0xffffffffffffffff, list=0xffff8000149f5788,0xffff8000149f4280 process=0xffff800014a15cb0 user=0xffff800014af1000, vmspace=0xffffff003f12be70 estcpu=36, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 42332 218398 25907 0 3 0x80 nanosleep syz-executor1 42332 414990 25907 0 3 0x4000080 ttyout syz-executor1 42332 265641 25907 0 3 0x4000080 ttyout syz-executor1 42332 58796 25907 0 3 0x4000080 ttyin syz-executor1 42332 392820 25907 0 3 0x4000080 fsleep syz-executor1 50223 510483 84557 0 2 0 syz-executor0 *50223 522671 84557 0 7 0x4000000 syz-executor0 50223 403407 84557 0 3 0x4000080 netlck syz-executor0 50223 387519 84557 0 2 0x4000000 syz-executor0 5679 511559 1 0 3 0x100083 ttyin getty 69645 484902 0 0 3 0x14200 bored sosplice 84557 424813 89312 0 3 0x82 nanosleep syz-executor0 25907 312215 89312 0 3 0x82 nanosleep syz-executor1 89312 54576 50724 0 3 0x82 thrsleep syz-fuzzer 89312 215039 50724 0 3 0x4000082 thrsleep syz-fuzzer 89312 146082 50724 0 3 0x4000082 thrsleep syz-fuzzer 89312 466976 50724 0 3 0x4000082 thrsleep syz-fuzzer 89312 1950 50724 0 3 0x4000082 thrsleep syz-fuzzer 89312 202022 50724 0 3 0x4000082 thrsleep syz-fuzzer 89312 253204 50724 0 3 0x4000082 kqread syz-fuzzer 50724 128119 74715 0 3 0x10008a pause ksh 74715 224606 81056 0 3 0x92 select sshd 81056 52793 1 0 3 0x80 select sshd 38117 274083 49626 73 3 0x100090 kqread syslogd 49626 434621 1 0 3 0x100082 netio syslogd 75273 195390 1 77 3 0x100090 poll dhclient 13952 215130 1 0 3 0x80 poll dhclient 57120 200785 0 0 3 0x14200 pgzero zerothread 84760 497946 0 0 3 0x14200 aiodoned aiodoned 86348 310654 0 0 3 0x14200 syncer update 4003 102055 0 0 3 0x14200 cleaner cleaner 28732 506539 0 0 3 0x14200 reaper reaper 55765 272462 0 0 3 0x14200 pgdaemon pagedaemon 34213 419990 0 0 3 0x14200 bored crynlk 82794 52319 0 0 3 0x14200 bored crypto 14125 385401 0 0 3 0x40014200 acpi0 acpi0 82294 410240 0 0 3 0x14200 bored softnet 3351 56996 0 0 3 0x14200 bored systqmp 76714 411408 0 0 3 0x14200 bored systq 83495 483404 0 0 3 0x40014200 bored softclock 40685 467736 0 0 3 0x40014200 idle0 1 290698 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper