From: robert@herjulf.net
Date: Mon, 23 Nov 2009 21:54:43 +0100

 Something mysterious or very obvious...

It seem very obvious to me that, for whatever reason, the MSI-X vectors
are only being sent to cpu 1 on Eric's system.

I also suspect, as a result, that it has nothing to do with the IXGBE
driver but rather is some IRQ controller programming or some bug or
limitation in the IRQ affinity mask handling in the kernel.