On Wednesday 14 May 2008, Matthew Dillon wrote: [...] > In the mean time, if you want to mess around with the vkernel > support there are two scripts in /usr/local/bin on leaf that will > get you started, called 'initvkernel' and 'runvkernel'.
Great, used it to reproduce a bug I'm hitting on my box. Just run initvkernel, and then (pasting from my scrollback buffer) leaf:/home/aggelos> gdb ~/build/vkernel/kernel GNU gdb 6.7.1 Copyright (C) 2007 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html> This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Type "show copying" and "show warranty" for details. This GDB was configured as "i386-dragonfly"... (gdb) b sbflush Breakpoint 1 at 0x80e5723: file /usr/src/sys/kern/uipc_sockbuf.c, line 442. (gdb) handle SIGSEGV noprint Signal Stop Print Pass to program Description SIGSEGV No No Yes Segmentation fault (gdb) handle SIGUSR1 noprint Signal Stop Print Pass to program Description SIGUSR1 No No Yes User defined signal 1 (gdb) run -m 64m -i ~/build/vkernel/memimg.01 -r ~/build/vkernel/rootimg.01 -r ~/build/vkernel/swapimg.01 Starting program: /build/home/aggelos/vkernel/kernel -m 64m -i ~/build/vkernel/memimg.01 -r ~/build/vkernel/rootimg.01 -r ~/build/vkernel/swapimg.01 Using memory file: /home/aggelos/build/vkernel/memimg.01 KVM mapped at 0x40000000-0x80000000 Copyright (c) 2003-2008 The DragonFly Project. Copyright (c) 1992-2003 The FreeBSD Project. Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994 The Regents of the University of California. All rights reserved. DragonFly 1.13.0-DEVELOPMENT #0: Tue May 13 15:30:51 PDT 2008 [EMAIL PROTECTED]:/usr/obj/usr/src/sys/VKLEAF real memory = 67108864 (65536K bytes) avail memory = 62414848 (60952K bytes) DragonFly/MP: Multiprocessor cpu0 (BSP) cpu1 (AP) initclocks SMP: AP CPU #1 Launched! objcache(exec-args): too small for ncpus, adjusting cluster_limit 16->32 md0: Malloc disk The vkernel gets stuck here. Really stuck. leaf:/home/aggelos> ps auxHlww | grep kernel aggelos 74113 0 0.0 2.3 24480 23464 p4 IL 5:19AM 0:00.36 gdb /home/aggelo 2042 74113 73958 0 152 0 24480 23464 wait IL p4 0:00.36 gdb /home/aggelos/build/vkernel/kernel aggelos 74216 3 0.0 0.4 1052872 4480 p4 TXL+ 5:20AM 0:00.00 /build/home/agge 2042 74216 74113 4 154 0 1052872 4480 umtxsl TXL+ p4 0:00.00 /build/home/aggelos/vkernel/kernel -m 64m -i /home/aggelos/build/vkernel/memimg.01 -r /home/aggelos/build/vkernel/rootimg.01 -r /home/aggelos/build/vkernel/swapimg.01 aggelos 74216 2 0.0 0.4 1052872 4480 p4 TXL+ 5:20AM 0:00.00 /build/home/agge 2042 74216 74113 2 153 0 1052872 4480 umtxsl TXL+ p4 0:00.00 /build/home/aggelos/vkernel/kernel -m 64m -i /home/aggelos/build/vkernel/memimg.01 -r /home/aggelos/build/vkernel/rootimg.01 -r /home/aggelos/build/vkernel/swapimg.01 aggelos 74216 1 0.0 0.4 1052872 4480 p4 TXL+ 5:20AM 0:00.01 /build/home/agge 2042 74216 74113 0 152 0 1052872 4480 umtxsl TXL+ p4 0:00.01 /build/home/aggelos/vkernel/kernel -m 64m -i /home/aggelos/build/vkernel/memimg.01 -r /home/aggelos/build/vkernel/rootimg.01 -r /home/aggelos/build/vkernel/swapimg.01 aggelos 74216 0 0.0 0.4 1052872 4480 p4 TXL+ 5:20AM 0:00.25 /build/home/agge 2042 74216 74113 0 152 0 1052872 4480 stop TXL+ p4 0:00.25 /build/home/aggelos/vkernel/kernel -m 64m -i /home/aggelos/build/vkernel/memimg.01 -r /home/aggelos/build/vkernel/rootimg.01 -r /home/aggelos/build/vkernel/swapimg.01 leaf:/home/aggelos> kill 74216 leaf:/home/aggelos> kill -9 74216 leaf:/home/aggelos> kill -9 74216 (notice, no ESRCH) Is this a known bug? TIA, Aggelos
