[CentOS] 194 Kernel Panic; 164 is Fine; How Do I Debug?

[Tom Brown]

> I have a machine that has worked fine for years on CentOS5.
> kernel-PAE-2.6.18-164.15.1.el5 is the last "works fine" kernel, but
> kernel-PAE-2.6.18-194.3.1.el5 crashes at boot every time.
>
>   

FYI i am having anaconda issues with 2.6.18-194 - basically anaconda 
crashes randomly both on x4100's and some r610's

These are bare metal installs and happen on CentOS and RHEL - I have a 
work around but would be nice to know whats going on.