[CFT - Closed] RC6 Enabled by Default on Sandy Bridge

[Leann Ogasawara]

Hi All,

I just wanted to send a note to announce that the RC6 call for testing
is now officially closed.  We appreciate all of the testing feedback we
received.  It had a direct impact and influence on our decision to
enable plain RC6 by default for Precise.  Between the testing feedback
we received and interaction with the upstream developers, we were also
able to find and fix a handful of RC6 related issues.  Kudos to all
involved.

Thanks,
Leann Ogasawara

On Fri, 2012-02-24 at 13:57 -0800, Leann Ogasawara wrote:
> On Thu, 2012-02-23 at 21:21 -0800, Leann Ogasawara wrote:
> > On Sat, 2012-02-18 at 13:07 -0800, Leann Ogasawara wrote:
> > [...]
> > > If you are running Ubuntu 12.04 (Precise Pangolin) and willing to test
> > > and provide feedback, please refer to our PowerManagementRC6 wiki for
> > > detailed instructions [3].  Additionally, instructions for reporting any
> > > issues with RC6 enabled are also noted on the wiki.  We would really
> > > appreciate any testing and feedback users are able to provide.
> > 
> > I first want to thank everyone who has already tested and provided their
> > feedback.  It is very much appreciated.  There has however been some
> > recent developments with the current RC6 patch which originated this
> > call for testing.  An adjustment has been made to that original patch:
> > 
> > http://lists.freedesktop.org/archives/intel-gfx/2012-February/015319.html
> > 
> > We're hoping this fix resolves the remaining issues when RC6 is enabled
> > by default.  A test kernel has already been built and posted to the RC6
> > bugs noted in the PowerManagementRC6 wiki [3].
> > 
> > For anyone else who was interested in testing, and wants to re-test, I
> > ask that you please hold off until we are able to upload this additional
> > fix.  I hope to get a Beta Freeze exception for this and intend follow
> > up with the Release Team accordingly.  I will respond to this email once
> > we have an official kernel in the archive ready for additional testing.
> 
> We have uploaded a new Ubuntu kernel, v3.2.0-17.27, which contains the
> latest RC6 fix [4].  For anyone who tested previously, if you would be
> willing to re-test with this newer kernel, that would be great.  I'd
> especially like to request that anyone who saw issues with RC6 when
> testing earlier to please re-test.
> 
> Thanks again for all of the testing effort and feedback so far.  I do
> apologize for the additional testing requests being made, but it is very
> much appreciated.
> 
> Thanks,
> Leann Ogasawara
> 
> > > [1] http://phoronix.com/forums/showthread.php?68199-Intel-Wants-YOUR-Linux-Questions-Feedback&p=246785#post246785
> > > [2] http://lists.freedesktop.org/archives/intel-gfx/2012-February/015131.html
> > > [3] https://wiki.ubuntu.com/Kernel/PowerManagementRC6
> [4] https://launchpad.net/ubuntu/+source/linux/3.2.0-17.27
> 
>