i have very strange effects as soon as i install the GPLPV drivers under 
windows7 (64bit):
- no network connection as soon as anything which accesses the graphiccard in 
3d mode is started; thats what buffles me most... i can't really tell you more 
than that, its really that strange (first i thought of a virus or something 
like that, but i was able to circle it down to the gplpv drivers,..)
this also happens with non-signed gplpv drivers, and also with a version prior 
to 308 (was it 238?)
- really better read-performance WITH gplpv, but much worse write-performance:
here is the performance without gplpv:
http://img238.imagevenue.com/img.php?image=15846_HDTune_File_Benchmark_QEMU_HARDDISK_VOR_signedGPLPV_122_354lo.jpg
here WITH gplpv:
http://img278.imagevenue.com/img.php?image=15846_HDTune_File_Benchmark_XEN____PV_DISK________NACH_gplpv_SIGNED_122_530lo.jpg
Greetings
Tobias
Am Freitag, 9. September 2011, 09:50:04 schrieb Moritz Mühlenhoff:
> Hi,
> for inclusion in Univention Corporate Server - a Linux distribution based
> on Debian targeted towards enterprise environments, which also includes
> Xen for virtualisation - we're now building/signing the excellent GPLPV
> drivers written by James Harper with a Software Publishers Certificate
> obtained from GlobalSign. [1]
>
> This allows installation of the GPLPV drivers on 64 bit Windows without the
> need to enable the test mode.
>
> The drivers are available from
> http://apt.univention.de/download/addons/gplpv- drivers/ and should be
> compatible with any Xen installation.
>
> The installation is detailed in
> http://wiki.univention.de/index.php?title=Installing-signed-GPLPV-drivers 
>
> So far only new installation of the GPLPV drivers have been tested. We
> welcome general feedback and experiences with upgrades from test-signed
> versions of GPLPV.
>
> Cheers,
> Moritz
>
> Footnotes:
> [1] We're well aware of the recent claims of a potential compromise of that
> CA, but as of today this is still under investigation:
> http://www.globalsign.com/company/press/090611-security-response.html 
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