CC me directly if you need more info or have a suggestion.

I have a x86-compat 933Mhz VIA Ezra CPU on a FIC mini-itx board. The 
system has 256Mb of RAM and a 40Gb ide hdd. I'm running a fully 
up-to-date copy of RedHat 7.3 with kernel 2.4.18-3. Off and on I'm 
having the system freeze when I su and change to a certain directory. 
The filesystem is ext3 and the directory has about half a dozen 
subdirectories each of which have several gigs of files. I've had the 
system for about a month running 24/7 and have only had this happen 
about four times. After one of these freezes I noticed an oops in my 
logs and and saved it. I've been trying to get more copies but that was 
the only time there was an indication of an oops in the log.

Output of ksymoops on the logged oops is attached. If I didn't do it 
right please let me know. Thanks.