You need to at least gather these informations:
- card generation
- versions of kernel, libdrm, xf86-video-nouveau and mesa
- kernel log

Please note that wrt 3D only nv50+ cards on 2.6.38+ kernel and mesa 7.11 are in supportable state.

See:
http://nouveau.freedesktop.org/wiki/Bugs
http://nouveau.freedesktop.org/wiki/MesaDrivers

89705 is definitely a nouveau bug. I'm not so sure about 91585 and 87948 (SIGSEGVs are very rare comparing to GPU lockups, like in 89705).

(In reply to comment #1)
> You need to at least gather these informations:
> - card generation
> - versions of kernel, libdrm, xf86-video-nouveau and mesa
> - kernel log

Please ask the bug reporter directly on the chrome bug.  No need for me to be the middle-man here. :)

> 
> Please note that wrt 3D only nv50+ cards on 2.6.38+ kernel and mesa 7.11 are in
> supportable state.
> 
> See:
> http://nouveau.freedesktop.org/wiki/Bugs
> http://nouveau.freedesktop.org/wiki/MesaDrivers
> 
> 89705 is definitely a nouveau bug. I'm not so sure about 91585 and 87948
> (SIGSEGVs are very rare comparing to GPU lockups, like in 89705).

It appears that this bug report has laid dormant for quite a while. Sorry we haven't gotten to it. Since we fix bugs all the time, chances are pretty good that your issue has been fixed with the latest software. Please give it a shot. (Linux kernel 3.10.7, xf86-video-nouveau 1.0.9, mesa 9.1.6, or their git versions.) If upgrading to the latest isn't an option for you, your distro's bugzilla is probably the right destination for your bug report.

In an effort to clean up our bug list, we're pre-emptively closing all bugs that haven't seen updates since 2011. If the original issue remains, please make sure to provide fresh info, see http://nouveau.freedesktop.org/wiki/Bugs/ for what we need to see, and re-open this one.

Thanks,

The Nouveau Team