ACK/cmnt: Xenial SRU - ppc64_cpu command is hung w HDs, SSDs and NVMe

[Tim Gardner]

On 02/14/2017 06:01 AM, Stefan Bader wrote:
> On 14.02.2017 13:56, Tim Gardner wrote:
>> On 02/14/2017 03:52 AM, Stefan Bader wrote:
>>> On 08.02.2017 14:32, Tim Gardner wrote:
>>>> https://bugs.launchpad.net/bugs/1662666
>>>>
>>>> [PATCH 1/2] blk-mq: Avoid memory reclaim when remapping queues
>>>> [PATCH 2/2] blk-mq: Fix failed allocation path when mapping queues
>>>>
>>>> rtg
>>>>
>>> The patches picked look sensible but since the linked bug contains many more
>>> references, I really would like to see some comments about why there are only
>>> those two left. Like at least for one, that is a fixup for a 4.8 change.
>>>
>>> -Stefan
>>>
>>
>> The first 4 commits had already been applied which I thought would be
>> obvious by virtue of the fact that patches 5 and 6 applied cleanly.
>>
>> What is the fixup patch that you spotted ?
> 
> The 3rd of the Yakkety set contains a "fixes" reference to a 4.8 patch. Probably
> should have commented about that on the Y set.
> 
> -Stefan
>>
> 
> 

Xenial commit 5273bc2838bb37a20b73f4a90ada1fe61e93ee4e ('blk-mq: Always
schedule hctx->next_cpu') came in via v4.4.44. It normally would have
come in via stable for Yakkety as well except that upstream had already
EOL'd support for v4.8.x

rtg

-- 
Tim Gardner tim.gardner at canonical.com

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