From Bugzilla Helper: User-Agent: Mozilla/4.77 [en] (X11; U; Linux 2.4.3-12 i686) Description of problem: Redhat 7.1 with kernel 2.4.3-12 would crash after 4 or 5 days of running applications with large memory. If we run a C program that consumes over 250MB of memory, we would lose X display after a few days. Logging out of the desktop would then crash the machine. Version-Release number of selected component (if applicable): How reproducible: Always Steps to Reproduce: 1. Run a large memory program. One that would cause the system to use more than 1/2 its swap space 2. After a week of continuously running the program, the desktop will no longer work, i.e. the desktop buttons won't be able to start new applications. X display is lost. 3. Logout and the computer will crash. Additional info:
Try upgrading to the current erratum kernel+XFree86. Does this fix the problem?