Re: kernel unable to use more than 2 of 16 CPUs on Intel E5540 (i7)

From: Roland Dreier
Date: Thu Jun 24 2010 - 18:05:32 EST

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@xxxxxxxxx> || For corporate legal information go to:
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