Re: [Xen-devel] Xen killing my e1000s?

[Andrew Lyon <andrew.lyon@xxxxxxxxx>]

On Fri, Dec 11, 2009 at 11:36 PM, Jeremy Fitzhardinge <jeremy@xxxxxxxx> wrote:
> 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?
>
> Thanks,
>    J
>
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Have you tried using the latest version of the e1000 driver from intel
rather than the in-kernel one? I've had the same problem when using
older kernels on systems with e1000 and Xen, I used the intel driver
for a while but once I switched to using a newer dom0 kernel the
problem went away.

Andy

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