Date: Tue, 15 Jul 2008 14:22:02 +0100 From: Mike Clarke <jmc-freebsd@milibyte.co.uk> To: freebsd-questions@freebsd.org Subject: Panic: spin lock held too long when booting Message-ID: <200807151422.02709.jmc-freebsd@milibyte.co.uk>
next in thread | raw e-mail | index | archive | help
I'm getting frequent panics due to spin lock held too long when booting my recently built 6.3 system with an Athlon 4850e dual core processor on a Foxconn 6150M2MA motherboard (GeForce 6150 and nForce 430 chipsets). FreeBSD curlew.lan 6.3-STABLE FreeBSD 6.3-STABLE #2: Sat Jul 12 09:43:21 BST 2008 root@curlew.lan:/usr/obj/usr/src/sys/CURLEW i386 I'd welcome any advice on how to understand and fix this. The panics usually happen immediately after the "Mounting local filesystem" message, but sometimes just before the end of the boot process. The system goes through the motions of producing a crash dump with a visible count down on the screen followed with... Dump complete Automatic reboot in 15 seconds - press a key on the console to abort Rebooting... cpu_reset: Stopping other CPUs ... then it just hangs until I do a hard reset. The odd thing is that when I reboot there doesn't appear to be any crash dump - I see the following messages: Checking for core dump on /dev/ad4s1b... savecore: no dumps found Is the lack of a dump due to some config error of mine, or an effect of the spin lock problem? Here's the head of my kernel file ... include GENERIC nocpu I486_CPU nocpu I586_CPU ident CURLEW nooptions COMPAT_FREEBSD4 # Compatible with FreeBSD4 nooptions COMPAT_FREEBSD5 # Compatible with FreeBSD5 options DDB options KDB options KDB_UNATTENDED ... the rest of the file is just "nodevice" lines for various devices I don't have. And from /etc/rc.conf ... dumpdir="/usr/crash" dumpdev="/dev/ad4s1b" Messages on the console while booting imply debugging is enabled... KDB: debugger backends: ddb KDB: current backend: ddb ... kernel dumps on /dev/ad4s1b ... But I'm still a bit dubious as to whether I've really managed to create a debugging kernel. I was under the impression that there should be some *.symbols files in the /boot/kernel directory but there aren't any (or is this just a rev. 7 thing?) and the kernel directory is only 24 MB. I also noticed when building the kernel there were lines like ... objcopy --strip-debug kernel.debug kernel ... though I do still have /usr/obj/usr/src/sys/CURLEW/kernel.debug. should I be doing something with this? -- Mike Clarke
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?200807151422.02709.jmc-freebsd>