Comment 9 for bug 1689365

I have submitted this patch series for SRU. Please test the kernel in https://launchpad.net/~ubuntu-power-triage/+archive/ubuntu/lp1689365/ and report back here so that the Ubuntu kernel team has added confidence is picking up these patches. I boot tested the kernel on a Power8 and did not find any regressions. A functional test to make sure the patch fixes the issue is useful.