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[Xen-devel] Xen killing my e1000s?

To: Xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx>
Subject: [Xen-devel] Xen killing my e1000s?
From: Jeremy Fitzhardinge <jeremy@xxxxxxxx>
Date: Fri, 11 Dec 2009 15:36:33 -0800
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I have this Xeon 3430-based system with a pair of on-board PCI-e e1000s. When I'm running under Xen, they disappear in use. That is, the PCI devices themselves seem to give up the ghost, and lspci -x shows all 0xff for their config spaces. They come back to life when I reset the machine.

When I boot under native Linux all seems fine.

I'm running with VT-d and all the other features enabled; I haven't tried turning them off yet. There are no obvious messages from the kernel or Xen complaining about anything.

This is a new machine, so it could be an outright hardware problem, but it seems like an odd failure-mode for a hardware fault (I'd expect on-board devices to either work or not work, and not come back on reset).

Anyone got any ideas?


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