RE: [Xen-users] Strange windows gpl pv problem

["James Harper" <james.harper@xxxxxxxxxxxxxxxx>]

> 
> Hi,
> 
> I'm running Xen 3.4.2 with gentoo 2.6.31-r10 dom0 from here:
> http://code.google.com/p/gentoo-xen-kernel/downloads/list, my domu is windows
> 2003 enterprise edition.
> 
> Now I have a very strange problem. Before installing gpl pv driver everything
> is fine. After I installed gpl pv driver I can't access some of the internet
> sites. The pattern here is like:
> 1. These are some of the sites I can't access www.target.com,
> www.overstock.com, www.solidot.org, www.sohu.com, www.zol.com.cn. And they are
> all normal sites without any sensitive stuff, plus I can access them before
> installing gpl pv driver and from my other machines on the same LAN.
> 2. From the command line, I can ping these sites without packet loss for a
> long time.
> 3. If I use another machine on my LAN as a proxy, magically I can access these
> sites again.
> 4. Accessing resources on my LAN doesn't have any problem.
> 5. I tried several version of gpl driver, including
> gplpv_fre_wnet_x86_0.10.0.130.msi
> <http://www.meadowcourt.org/downloads/gplpv_fre_wnet_x86_0.10.0.130.msi> ,
> gplpv_2003x32_0.10.0.142.msi
> <http://www.meadowcourt.org/downloads/gplpv_2003x32_0.10.0.142.msi>  and
> gplpv_2003x32_0.11.0.188.msi
> <http://www.meadowcourt.org/downloads/gplpv_2003x32_0.11.0.188.msi> , all the
> same.
> 
> Any idea?
> 

I would first suspect checksum or large send offload, particularly if you are 
using VLAN's.

You can disable these from the advanced adapter properties of the network 
adapter under Windows.

Let me know how you go with this... if it still doesn't work then some packet 
traces may be required.

James

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