kernel very unstable

[Lucas Vogel]

> > My stock SuSE 2.2.16 kernel keeps intermittently crashing 
> and hosing my
> > machine to where I have to do a hard reboot. It seems to 
> generate some kind
> > of oops on the kmem_free function. 
> 
> In general, any regular crashing by a stock kernel points to hardware
> problems on your end.  No kernel that ships with any of the major
> distributions will give these kind of problems on halfway decent
> hardware.  In general.

How do I diagnose and fix something like this then?