Date: Thu, 7 Dec 2006 17:28:33 -0500 From: Andrew Boring <andrew@inemy.com> To: freebsd-questions@freebsd.org Subject: Re: Dell - kernel panic problems Message-ID: <b44d2433ae2edc85233b53be37c1d53c@inemy.com> In-Reply-To: <2681.70.155.90.95.1164150679.squirrel@www.inemy.com> References: <2681.70.155.90.95.1164150679.squirrel@www.inemy.com>
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On Nov 21, 2006, at 6:11 PM, andrew@inemy.com wrote: > I have problems with what appears to be kernel panics when accessing > the > disk (either reading or writing). This box does nothing at the moment > but > wait for me to install and configure something, since it's a test box > and > hasn't even made it to live testing yet. > > The panics usually happen when installing something via Ports. Today, > as I > was running a "make clean", I managed to get this one: > > Fatal trap 12: page fault while in kernel mode > fault virtual address = 0x20000 > fault code = supervisor read, page not present > instruction pointer = 0x20:0xc083f0dc Well, I'm disappointed that no one even responded with an RTFM somewhere that could I find more information on this. As it happens, a google search eventually pointed me back to this section of the FAQ: http://www.freebsd.org/doc/en_US.ISO8859-1/books/faq/ advanced.html#KERNEL-PANIC-TROUBLESHOOTING So here's the instruction pointer matching with the symbol table: #nm -n /boot/kernel/kernel | grep c083f c083f06c T pmap_clear_modify It's possible that my instruction pointer in my first email above was typo'ed, since I handwrote the panic output and typed it into my email. Any suggestions? I'm recompiling the GENERIC kernel with options DDB so I can capture the crash dump...but I would like to know if anyone has any suggestions in the meantime. -Andrew
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