Re: Page allocation failures in guest

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On Tue, 11 Aug 2009 04:22:53 pm Avi Kivity wrote:
> On 08/11/2009 09:32 AM, Pierre Ossman wrote:
> > On Mon, 13 Jul 2009 23:59:52 +0900
> > Minchan Kim<minchan.kim@xxxxxxxxx>  wrote:
> > Any ideas here? Is the virtio net driver very GFP_ATOMIC happy so it
> > drains all those pages? And why is this triggered by a kernel upgrade
> > in the host?
> >
> > Avi? 
> 
> Rusty?

It's kind of the nature of networking devices :(

I'd say your host now offers GSO features, so the guest allocates big
packets.

> > I doesn't get out of it though, or at least the virtio net driver
> > wedges itself.

There's a fixme to retry when this happens, but this is the first report
I've received.  I'll check it out.

Thanks,
Rusty.
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