Escalated to Bugzilla from IssueTracker
Created attachment 116147 [details] correct behaviour of SIGPROF/itimer.
Patch has been submitted, pending review, on schedule for release in RHEL3 U6.
A fix for this problem has just been committed to the RHEL3 U6 patch pool this evening (in kernel version 2.4.21-32.11.EL).
QE ACK
Created attachment 116792 [details] Norm's (correct) original suggestion.
I just built a test kernel based on 2.4.21-32 and sent it to DreamWorks for testing.
An advisory has been issued which should help the problem described in this bug report. This report is therefore being closed with a resolution of ERRATA. For more information on the solution and/or where to find the updated files, please follow the link below. You may reopen this bug report if the solution does not work for you. http://rhn.redhat.com/errata/RHSA-2005-663.html