Boot failure with 2.6.27.46 on Xeon E5620 (Westmere EP)

["S.ÃaÄlar Onur"]

Hi,

We are observing boot failures [1] & [2] on some of our servers (Dell r410) with 2.6.27-stable kernels. I found following commit in upstream tree via a quick search (but I haven't tried it yet) so I don't know whether I'm on the right track or not. 

Please let me know if anything else is needed...

commit d0af9eed5aa91b6b7b5049cae69e5ea956fd85c3
Author: Suresh Siddha <suresh.b.siddha@xxxxxxxxx>
Date:   Wed Aug 19 18:05:36 2009 -0700

    x86, pat/mtrr: Rendezvous all the cpus for MTRR/PAT init
[â]

[1] http://www.cs.princeton.edu/~caglar/2.6.27/idle=mwait.png
[2] http://www.cs.princeton.edu/~caglar/2.6.27/idle=poll.png

Best regards,
--
S.ÃaÄlar Onur <caglar@xxxxxxxxxxxxxxxx>

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