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

[Daniel Goertzen <goertzen@xxxxxxxx>]

Ian Pratt wrote:

> > No, dmesg looks clean in both dom0 and domU.  Sames results for
> > xen-3.0-testing-20051206 and xen-3.0-testing-20051227. (I 
> > only upgraded the hypervisor to 20051227.)
> >    
> It's the dom0 and domU kernels that would need the upgrade as the
> hypervisor isn't involved with this.
>
> The other thing to try is to use ethtool to turn checksum offload off on
> eth0.
>
> Ian
>
>
>  
No progress:

- 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.

Cheers,
Dan.

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