Re: [Xen-devel] Unstable NFS mount at heavy load.

["G.R." <firemeteor@xxxxxxxxxxxxxxxxxxxxx>]

>
> I checked the thread and unfortunately did not find anything conclusive.
> In my case, my dom0 seems to work fine and even the domU is still alive
> -- everything back to order after the mount recovered (typically in a
> couple of minutes).
>
> According to the traffic I captured, server is kind of busy and keep
> sending ZeroWindow for a while
> and the client in domU reset the connection after retrying 6 times
> within 15 seconds.
> I'm not sure if this is a correct client behavior while the server is
> doing wrong.
> But why does this only happen in domU client?

Well, I have to say sorry about this thread.
After some more experiments, I find that the syndrome is not specific to domU.
Both dom0 && non-xen system suffer from this issue, so this must be a
server fault and has nothing to do with xen.

This may have something to do with my weird setup (ext4 on loop image
mounted on server and exported through NFS).
But anyway this syndrome seems not fixed in recent kernel (3.6.11 tried).

Thanks,
Timothy

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