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RE: [Xen-users] tcp checksum errors across dom0-domu bridge

To: "Daniel Goertzen" <goertzen@xxxxxxxx>
Subject: RE: [Xen-users] tcp checksum errors across dom0-domu bridge
From: "Ian Pratt" <m+Ian.Pratt@xxxxxxxxxxxx>
Date: Thu, 29 Dec 2005 22:19:06 -0000
Cc: ian.pratt@xxxxxxxxxxxx, xen-users@xxxxxxxxxxxxxxxxxxx
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Thread-index: AcYL60F2AFqyHjBqR6qUM3fnrLELbwA2kEgw
Thread-topic: [Xen-users] tcp checksum errors across dom0-domu bridge
 > - I used the dom0 and domU kernels from 
> xen-3.0-testing-20051227, same results.
> - I tried turning off the checksum offload for eth0, but it 
> wouldn't let me.
> - I removed my physical eth0 from the bridge so that the 
> whole network was purely virtual... the tcp checksum problem 
> still occurred.
> - I wrote a tiny python tcp client/server program that also 
> fails because of the tcp checksum problem.
> I'm willing to try more things if you can think of them.

Are you 100% sure you're using the kernels you think you are. Please
check the changeset id using dmesg in both dom0 and the domU.

Are you using the normal network-bridge script? Are you sure you're
using the latest version?

How are you detecting that checksum errors are ocuring? 

It's bizzare that you should be having problems that absoloutely no-one
else is seeing.


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