From Bugzilla Helper: User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0) Description of problem: We are shipping Opteron systems which will enter Alpha with marquee customers very soon. They will be running AMD64 RHAS3 in the alpha cycle. Our systems require >8 IOAPICs to function. The suggested change to the RHEL kernel is to increase MAX_IO_APICS to 16 in file include/asm- x86_64/apicdef.h This change has been made in the 2.4.26 x86_64 kernel on kernel.org and is also in 2.6. Tx. Version-Release number of selected component (if applicable): kernel-2.4.21-17.EL How reproducible: Always Steps to Reproduce: 1. Boot a system with >8 IOAPICs (such as Fabric7 systems). 2. 3. Additional info: Our Alpha/Beta sites include members of RedHat's customer base on Wall Street.
Other parties have requested that this be bumped to 32, so that is what we'll do.
A fix for this problem has just been committed to the RHEL3 U4 patch pool this evening (in kernel version 2.4.21-20.4.EL).
An errata 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-2004-550.html