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Date: Fri, 14 Sep 2007 06:34:45 -0500
From: Eric Anderson <anderson@freebsd.org>
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To: Mario Sergio Fujikawa Ferreira <lioux-list@uol.com.br>
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Cc: freebsd-current@freebsd.org
Subject: Re: hang on startx with nvidia / also with emu10kx
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Mario Sergio Fujikawa Ferreira wrote:
> Hi,
> 
> FreeBSD exxodus.fedaykin.here 7.0-CURRENT FreeBSD 7.0-CURRENT #9: Thu Sep 13 22:46:14 BRT 2007     lioux@exxodus:/usr/src/sys/i386/compile/LIOUX  i386
> 
> 	-CURRENT as of today September 13th 2007 with latest ports.
> xorg works fine if I launch it with tightvnc. However, the system
> hangs if I try to startx using the nvidia driver. The same happens
> if I try to kldload emu10kx.
> 
> 	How do I force the system to issue a kernel dump when it
> hangs? I want to be able to provide a proper backtrace of the system
> if possible. :)
> 
> 	Are these known issues?


I have the same issue.  It has been happening for me for a while, so I 
switched to the nv driver (which is terribly slow for me).

I was able to get a dump, by having all the debugger bits in the kernel 
config, and when it locked up, I simply typed "call doadump" [enter], 
then "reset" [enter].  I got my dump, even though I couldn't see the 
typing.  I have yet to do anything with the dump :(


Eric