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RE: [Xen-devel] RE: Stability report GPLPV 0.11.0.308

To: "Andreas Kinzler" <ml-xen-devel@xxxxxx>
Subject: RE: [Xen-devel] RE: Stability report GPLPV 0.11.0.308
From: "James Harper" <james.harper@xxxxxxxxxxxxxxxx>
Date: Sat, 24 Sep 2011 09:49:58 +1000
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Thread-topic: [Xen-devel] RE: Stability report GPLPV 0.11.0.308
> 
> I did take a look at your commit 950 and I think there are 3 typos
(see my
> patch).

Thanks for that. I guess the length parameter mustn't be verified or I
would have crashed...

> Anyway, I don't think that memory problems are causing the stability
> issues and (as some kind of "proof") I did not notice any increase in
kernel
> memory usage during uptime of the VMs.
> 
> Actually I am not really sure if xennet is even the problem since in
none of
> the crash scenarios there was something in the Windows event log. In
my
> last test I was able to enter my password via VNC (it did not login
though) -
> this should have written some entries to the security log which it did
not. So I
> assume that xenvbd was dead too (killed by
> xennet) or is actually the real reason for the stability problems.
> 

I'm just setting up a few new servers and on one of them a Windows
2008R2 machine hung and there were lots of xenvbd errors in the logs.
The underlying block device for that DomU is iSCSI and I assumed the
problem was there (I was doing a lot of testing on the SAN at the time)
but maybe not.

No evidence of problems in /var/log/xen/qemu-dm-<domu name>.log?

James

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