On Mon, Nov 24, 2014 at 11:51 AM, Kevin Hilman <[email protected]> wrote:
> Kukjin,
>
> On Mon, Nov 10, 2014 at 11:35 AM, Kevin Hilman <[email protected]> wrote:
>> Kukjin Kim <[email protected]> writes:
>>
>>> Kevin Hilman wrote:
>>>>
>>>> From: Kevin Hilman <[email protected]>
>>>>
>>>> The option CONFIG_EXYNOS5420_MCPM is causing imprecise external aborts
>>>> during boot testing, causing various userspace startup failures.
>>>>
>>>> Disable until it has gotten more testing.
>>>>
>>>> Cc: Kukjin Kim <[email protected]>,
>>>> Cc: Javier Martinez Canillas <[email protected]>,
>>>> Cc: Sachin Kamat <[email protected]>,
>>>> Cc: Doug Anderson <[email protected]>,
>>>> Cc: Bartlomiej Zolnierkiewicz <[email protected]>,
>>>> Cc: Krzysztof Kozlowski <[email protected]>,
>>>> Cc: Tushar Behera <[email protected]>,
>>>> Cc: [email protected] # v3.17+
>>>> Signed-off-by: Kevin Hilman <[email protected]>
>>>> ---
>>>> This has been reported by a few people[1], but not investigated or fixed, 
>>>> so it's
>>>> time to disable this feature until it can be fixed.
>>>>
>>> Hi Kevin,
>>>
>>> Yeah I agree with your opinion.
>>>
>>> But as you can see my tree, I've queued regarding mcpm patches for 3.19 will
>>> be shown in -next in this weekend.
>>
>> Which of the recently queued patches are expected to address the
>> imprecise abort issue?  I'd be happy to test them out.
>
> Exynos5 MCPM is still broken in linux-next and still causing an imprecise 
> abort.
>
> What is the status of $SUBJECT patch?
>
>>> Anyway let me apply this into -fixes and
>>> then let's enable after test its functionality in -next in a couple of days.
>>
>> Yes, I think this needs to be applied until these aborts are understood
>> and fixed.
>
> Is anyone at Samsung actually looking into these MCPM issues?

Hi Kevin,

What hardware are you having problems with? 5420 or 5422/5800?


-Olof
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