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RE: [Xen-users] high ? number of dropped packet on xen vif

To: "Matthieu PATOU" <matxen@xxxxxxxxx>, <xen-users@xxxxxxxxxxxxxxxxxxx>
Subject: RE: [Xen-users] high ? number of dropped packet on xen vif
From: "Ian Pratt" <m+Ian.Pratt@xxxxxxxxxxxx>
Date: Sun, 11 Dec 2005 22:09:53 -0000
Cc: ian.pratt@xxxxxxxxxxxx
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Thread-index: AcX+kQvy7vGXLc3iS/KQo8b0UAiU5wADknbw
Thread-topic: [Xen-users] high ? number of dropped packet on xen vif
> Hello all,
> it seems i'm facing a  problem with xen networking.
> I have some hang up with my NFS server running in domU.
> I noticed that when i got a hang up i also see an increase of 
> the number of dropped packet of the vif interface.

Which version of Xen are you running here, 3.0.0?

Is this a soft hang that later recovers?

> it seems that dom0 has some trouble with sending the packet 
> to the domU Currently the rate of dropped packet (the TX ones 
> ) is 10% of the total transmited.

Which counters are you referring to here? The TX fields of the vifX.0

> I try to increase dom0 memory but i doesn't seems to have an 
> effect on the rate of dropped packet.
> Is there some one who has also faced this problem ?
> Do you have an idea of what can i try to solve the problem ? 

If you built from source, please modify xen/Rules.mk to turn on debug=y
and then rebuild.


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