On Sun Aug  1 21:14:05 1999, Richard Rauch wrote:
> 
> I'm not sure how general of a problem this is, so I'm posting to both
> port-i386 and netbsd-help.
> 
> Ever since upgrading to 1.4 in May, I've seen my NetBSD box lock up under
> semi-predictable circumstances.  The general requirements seem to be:
> 
>   Run X.
>   Do something that puts a heavy CPU strain on the system.

Your are not telling us which s3 card you use.
First try to use a newer XServer then the one supplied in 1.4. There are
some fixes for S3 cards in XFree86 3.3.4.

Bernd