On Mon, Sep 24, 2007 at 06:36:53PM +0200, P.U.Kruppa wrote: > Sorry, from developer's handbook I guess I should find a vmcore.N > file. There isn't any. My parallel printing attempts end up in > some kind of single user mode on the root terminal with a > db> > prompt. Can I do anything with that? > That's the DDB prompt: from there you need to either get a backtrace or, more usefully, generate a crash dump. See http://www.freebsd.org/doc/en/books/developers-handbook/kerneldebug-online-ddb.html for details. To generate a crash dump that you can later use with kgdb, type "panic" at the db> prompt. Then, read http://www.freebsd.org/doc/en/books/developers-handbook/kerneldebug-gdb.html to find out how to obtain a backtrace that can help diagnose the fault. If using the "panic" command doesn't generate a crash dump, you could also do some diagnostics at the db> prompt by using commands such as "trace" to get a stack trace, but unless you're connected over serial you won't be able to get a copy of the output so it's better to see if you can generate a crash dump first. -- BruceReceived on Mon Sep 24 2007 - 15:58:22 UTC
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