Re: [PATCH 3.10 00/26] 3.10.31-stable review

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On Thu, Feb 20, 2014 at 10:01:38AM -0700, Shuah Khan wrote:
> On 02/20/2014 06:39 AM, Shuah Khan wrote:
> > On 02/20/2014 12:30 AM, Xishi Qiu wrote:
> >> On 2014/2/20 8:29, Shuah Khan wrote:
> >>
> >>> On 02/18/2014 03:46 PM, Greg Kroah-Hartman wrote:
> >>>> This is the start of the stable review cycle for the 3.10.31 release.
> >>>> There are 26 patches in this series, all will be posted as a response
> >>>> to this one.  If anyone has any issues with these being applied, please
> >>>> let me know.
> >>>>
> >>>> Responses should be made by Thu Feb 20 22:45:20 UTC 2014.
> >>>> Anything received after that time might be too late.
> >>>>
> >>>> The whole patch series can be found in one patch at:
> >>>>
> >>>> kernel.org/pub/linux/kernel/v3.0/stable-review/patch-3.10.31-rc1.gz
> >>>> and the diffstat can be found below.
> >>>>
> >>>> thanks,
> >>>>
> >>>> greg k-h
> >>>>
> >>>
> >>> Compile and boot tests passed on AMD system. Boot failed on Intel
> >>> systems. I think the following changes are the suspect, so far by
> >>> process of elimination - these two aren't in 3.12 and 3.13
> >>>
> >>> #    modified:   mm/hugetlb.c
> >>> #    modified:   mm/memory-failure.c
> >>>
> >>> However, my strong suspect is the following:
> >>>
> >>> Xishi Qiu <qiuxishi@xxxxxxxxxx>
> >>>      mm: fix process accidentally killed by mce because of huge page
> >>> migration
> >>>
> >>> I don't see how this could cause problems, none the less, I will test
> >>> without these changes and let you know.
> >>>
> >>>
> >>> Naoya Horiguchi <n-horiguchi@xxxxxxxxxxxxx>
> >>>      mm/memory-failure.c: fix memory leak in successful soft offlining
> >>>
> >>> I will test without these changes and let you know.
> >>>
> >>> -- Shuah
> >>>
> >>
> >> Hi Shuah
> >>
> >> I tested on my system, it boot successfully.
> >>
> >> hardware: Intel(R) Xeon(R) CPU E5-2420 0 @ 1.90GHz
> >> OS: v3.10.30 + the two patches
> >>
> >> Thanks,
> >> Xishi Qiu
> >
> > Xishi,
> >
> > I tested without your patch and still see the issue. My wild guess
> > wasn't a good one :) I am starting git bisect now.
> >
> > -- Shuah
> >
> >
> 
> ok I have it isolated to the following patch:
> 
> Dirk Brandewie <dirk.j.brandewie@xxxxxxxxx>
>      intel_pstate: Take core C0 time into account for core busy calculation
> 
> From: Dirk Brandewie <dirk.j.brandewie@xxxxxxxxx>
> 
> commit fcb6a15c2e7e76d493e6f91ea889ab40e1c643a4 upstream.
> 
> Take non-idle time into account when calculating core busy time.
> This ensures that intel_pstate will notice a decrease in load.
> 
> Boots just fine without this change.

Thanks for testing, I'll be dropping that patch as it causes major
regressions on my boxes as well.

greg k-h
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