3.10-rc ppc64 corrupts usermem when swapping

[Hugh Dickins]

On Fri, 31 May 2013, Benjamin Herrenschmidt wrote:
> On Thu, 2013-05-30 at 22:05 -0700, Hugh Dickins wrote:
> > > Sure, it's now under way.  If all goes well, I'll give you a
> > > progress report in about 15 hours time; but given the variance in
> > > how long it took to hit, I won't feel fully confident until this
> > > time tomorrow, when I'll update you again.
> > 
> > Still running fine.  I'll leave it running a few more hours to make
> > sure, and then try switching to the patch Aneesh sent afterwards -
> > or say if you'd prefer me to switch over to that one immediately.
> 
> The patch you are running on is what I'll send to Linus for 3.10 (+/-
> cosmetics). Aneesh second patch is a much larger rework which will be
> needed for THP but that will wait for 3.11. I'm happy for you to test it
> but I first want to make sure it's solid with the 3.10 fix :-)

That makes sense.
The first patch ran fine without incident for 25 hours, I say it's good.
I've now stopped that run and started another with the second patch in.

Hugh