On Mon, 1 Jul 2002, James wrote:
> > > It's not a driver problem, is it?
> > I don't think so since it works on Linux.
>
> See, the thing is, there are other people who have installed the same
> FreeBSD version as I have with no problems, but they have different video
> cards. So XFree86 4.2.0 has worked on FreeBSD 4.6.
Could be something special that the "nv" driver is doing that makes
it not work on FreeBSD, but I've never heard of that. I think somebody
would have complained already.
>
> >Does your server have
> > debug info in it? Could you get a gdb backtrace on the core dump? That
> > may narrow down the problem.
>
> I'm really new to this (2 days). Could you please tell me where I could go
> to find out that information?
>
1) If core dumps aren't turned on in your shell, turn them on.
For tcsh it's a command like "limit coredumpsize 200000"
For bash it was something like "ulimit -c". See the man page.
2) When the server crashes and you get a core file, run gdb on it.
gdb -c core /usr/X11R6/bin/XFree86
3) From the gdb prompt type "bt" to get a backtrace. Hopefully you
have symbols and it will give us an idea where it actually segfaulted.
Mark.
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