[Nouveau] Canvas in Firefox, corruption

[Sjon]

Hi,

I have been using nouveau for a few months now, and it works fine.

A few weeks ago I noticed something is broken though; since Google 
switched to using Canvas for their image search I am having some sort of 
corruption in the thumbnails that Google serves.

More information plus screenshots are available here:

https://bbs.archlinux.org/viewtopic.php?id=101469
https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-nouveau/+bug/608613

I was wondering if there is anything I can do to help debugging this? My 
setup currently is Archlinux with a GeForce 9800 GTX and these package 
versions:

nouveau-drm-lts 0.0.16_20100313-2
nouveau-firmware 20091212-4
xf86-video-nouveau 0.0.16_git20100517-1

I do not see any errors getting logged when this corruption appears, is 
there any way to make a debug-version of nouveau to get additional 
information?

Thanks,

Sjon