While testing patches for BZ #14766 I found that 2.1 crashes reliably when more than one process reads /proc/kcore: $ while true; do cat /proc/kcore > /tmp/kcore; done& $ while true; do cat /proc/kcore > /dev/null; done& Derry, RHEL3, and later don't exhibit this problem.
Created attachment 140058 [details] Don't use vmalloc in proc_file_read().
I couldn't recreate the crash with e.70, however I have verified that the fix is in as part of linux-2.4.26-updates.patch and that patch is being applied in e.71.
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-2007-0013.html