On Sat, 13 Jul 1996 20:02:40 +0900 (JST) 
 MINOURA Makoto <minoura@netlaputa.or.jp> wrote:

 > >Description:
 > 	X server invoked in color mode causes the kernel without DDB causes
 > 	panic.
 > >How-To-Repeat:
 > 	Configure kernel without the DDB support, and invoke X window
 > 	system.

What kind of panic?  As far as normal kernel operations go, the only 
thing that the DDB does is make the text portion of the kernel read/write 
(which is a bug, actually; it should only enable writing of the kernel 
text on a per page basis for the purpose of setting breakpoints, setting 
it back once the breakpoint has been set...the sun3 port has dealt with 
this already).

So, it sounds a little like something might be trying to write to kernel 
text.  This could potentially be a stray pointer problem, or maybe 
something is trying to update the vector table?

Just some ideas...

 -- save the ancient forests - http://www.bayarea.net/~thorpej/forest/ -- 
Jason R. Thorpe                                       thorpej@nas.nasa.gov
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