From: Roland Dreier <rdreier@cisco.com>
To: Kurt Newman <knewman@globaldataguard.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: 2.6.32.1 kernel unable to use more than 2 of 16 CPUs on Intel E5540 (i7)
Date: Thu, 24 Jun 2010 15:05:22 -0700 [thread overview]
Message-ID: <adahbksqe71.fsf@roland-alpha.cisco.com> (raw)
In-Reply-To: <4C23D1E9.9050007@globaldataguard.com> (Kurt Newman's message of "Thu, 24 Jun 2010 16:45:13 -0500")
Your config seems to have CONFIG_PM and therefore CONFIG_ACPI disabled.
So the kernel is relying on mptable information. Unsurprisingly on a
modern system, that info is probably broken -- since everything would
have been tested with ACPI.
Try turning on CONFIG_ACPI and see if that helps at all.
--
Roland Dreier <rolandd@cisco.com> || For corporate legal information go to:
http://www.cisco.com/web/about/doing_business/legal/cri/index.html
next prev parent reply other threads:[~2010-06-24 22:05 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-06-24 21:45 2.6.32.1 kernel unable to use more than 2 of 16 CPUs on Intel E5540 (i7) Kurt Newman
2010-06-24 22:05 ` Roland Dreier [this message]
2010-06-25 0:23 ` Robert Hancock
2010-06-25 21:51 ` Kurt Newman
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