[CentOS] 6.2 x86_64 "mtrr_cleanup: can not find optimal value"

Thu Apr 12 14:19:15 UTC 2012
Phil Schaffner <Philip.R.Schaffner at NASA.gov>

Michael McNulty wrote on 04/11/2012 10:40 PM:
> Will mtrr failing result in stability or performance loss?  Is there any performance loss disabling memory remap in bios other than losing 600k?  thx
> Is this happening because the chipset only supports 8gb of memory and
> therefore mtrr cannot remap memory above 8gb? (assuming not since
> problem did not exist in 5.x centos)

There was a recent forum thread [1] on this issue.  Unfortunately it was 
never cleanly resolved, but you may find some suggestions there.  It 
seems that unmatched memory modules may be a cause.