Re: [PATCH v15 00/23] Generic page walk and ptdump

From: Qian Cai
Date: Thu Dec 05 2019 - 09:38:22 EST




> On Dec 5, 2019, at 9:32 AM, Thomas Hellstrom <thellstrom@xxxxxxxxxx> wrote:
>
> On Thu, 2019-12-05 at 08:15 -0500, Qian Cai wrote:
>>> On Dec 4, 2019, at 11:32 AM, Steven Price <Steven.Price@xxxxxxx>
>>> wrote:
>>>
>>> I've bisected this problem and it's a merge conflict with:
>>>
>>> ace88f1018b8 ("mm: pagewalk: Take the pagetable lock in
>>> walk_pte_range()")
>>
>> Sigh, how does that commit end up merging in the mainline without
>> going through Andrewâs tree and missed all the linux-next testing? It
>> was merged into the mainline Oct 4th?
>
> It was acked by Andrew to be merged through a drm tree, since it was
> part of a graphics driver functionality. It was preceded by a fairly
> lenghty discussion on linux-mm / linux-kernel.
>
> It was merged into drm-next on 19-11-28, I think that's when it
> normally is seen by linux-next. Merged into mainline 19-11-30. Andrew's
> tree got merged 19-12-05.

Ah, that was the problem. Merged into the mainline after only a day or two
showed up in the linux-next. There isnât enough time for integration testing.

>
> linux-next signaled a merge conflict from one of the patches in this
> series (not this one) resolved manually with the akpm tree on 19-12-02.
>
> Thomas
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