Matthieu Herrb wrote:
> 
> You wrote (in your message from Wed 21 January 1998)
>  > 
>  > I am confused and don't know where to look!
>  > 
> 
> If you're using xdm, look in /usr/X11R6/lib/X11/xdm/xdm-errors for any
> error message from the X server before it panics.
> 
> If it doesn't tell anything useful, try to get a core from
> it: add 'NoTrapSignals' to the ServerFlags section of
> /etc/XF86Config. Then send a bug report to xfree86@xfree86.org with a
> stack trace of the crash from gdb.
> 
> 
> 					Matthieu
> 

In the end I recompiled XF86_S3 with
#define ServerCDebugFlags -g -fno-strength-reduce
in host.def and the problem went away. Sounds like -O2 does something
bad, but how to check? Anyway, thanks for the suggestion,

Patrick