From Bugzilla Helper: User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.4.2) Gecko/20040301 Description of problem: Intel recently announced a microcode update to their Pentium 4 and Xeon processors to fix a timing problem in the instruction decode unit. Some hardware vendors (e.g. IBM and HP) have release BIOS updates to load new microcode. Others (e.g. whitebox/clone vendors) have not. Intel's docs do specify the microcode fix must be loaded early in the POST process (prior to memory initialization), but it is not clean if that is a generic statement, or actual requirement to fix the problem. microcode.dat in kernel-utils-2.4-8.37.5.i386.rpm is datestamped with May-2001. Code from http://www.urbanmyth.org/microcode is dated 27-Jul-2004 (consistent with BIOS update info from IBM). Version-Release number of selected component (if applicable): 2.4-8.37.5 How reproducible: Always Steps to Reproduce: Additional info: The intel-ia32microcode-27July2004.txt file from www.urbanmyth.org/microcode will load w/o error using the existing microcode_ctl utility. See also -- http://www.beowulf.org/pipermail/beowulf/2004-July/017215.html http://www-307.ibm.com/pc/support/site.wss/document.do?lndocid=MIGR-43902 (note IBM deems this issue "critical") http://www-1.ibm.com/support/docview.wss?uid=psg1MIGR-55708 http://developer.intel.com/design/xeon/documentation.htm#updates
*** Bug 135785 has been marked as a duplicate of this bug. ***
*** Bug 121553 has been marked as a duplicate of this bug. ***
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/RHBA-2005-228.html