linux-kernel - Re: [PATCH 1/2] mm: page_alloc: simplify pageblock migratetype check in __free_one

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Message-ID: <51D1B1D7-66D6-48A6-9E66-8C7686465EE4@nvidia.com>
Date:   Sat, 02 Apr 2022 08:00:25 -0400
From:   Zi Yan <ziy@...dia.com>
To:     Kalle Valo <kvalo@...nel.org>
Cc:     David Hildenbrand <david@...hat.com>, linux-mm@...ck.org,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Steven Rostedt <rostedt@...dmis.org>,
        Vlastimil Babka <vbabka@...e.cz>,
        Mel Gorman <mgorman@...hsingularity.net>,
        Mike Rapoport <rppt@...nel.org>,
        Oscar Salvador <osalvador@...e.de>,
        Andrew Morton <akpm@...ux-foundation.org>,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/2] mm: page_alloc: simplify pageblock migratetype check in __free_one_page().

On 2 Apr 2022, at 3:52, Kalle Valo wrote:

> Kalle Valo <kvalo@...nel.org> writes:
>
>> David Hildenbrand <david@...hat.com> writes:
>>
>>> On 01.04.22 16:22, David Hildenbrand wrote:
>>>> On 01.04.22 16:19, Zi Yan wrote:
>>>>> On 1 Apr 2022, at 10:12, David Hildenbrand wrote:
>>>>>
>>>>>> On 01.04.22 15:58, Zi Yan wrote:
>>>>>>
>>>>>> It's weird, your mails arrive on my end as empty body with attachment. I
>>>>>> first suspected Thunderbird, but I get the same result on the google
>>>>>> mail web client.
>>>>>>
>>>>>> Not sure why that happens.
>>>>>
>>>>> No idea. They look fine (except mangled links by outlook) on my outlook
>>>>> desk client and web client on my side. lore looks OK too:
>>>>> https://lore.kernel.org/linux-mm/20220401135820.1453829-1-zi.yan@sent.com/
>>>>
>>>> I can spot in the raw mail I receive
>>>>
>>>> "Content-Type: application/octet-stream; x-default=true"
>>>>
>>>> But that seems to differ to the lore mail:
>>>>
>>>> https://lore.kernel.org/linux-mm/20220401135820.1453829-1-zi.yan@sent.com/raw
>>>>
>>>>
>>>> Maybe something in my mail server chain decides to do some nasty
>>>> conversion (grml, wouldn't be the first time)
>>>>
>>>
>>> Weird thing is that this only happens with your mails. I opened an
>>> internal ticket, sorry for the noise.
>>
>> Zi's patch emails I received didn't have Content-Type, that might have
>> something to do with this. (But his reply later in the thread did have
>> one.) Also last week I got one patch email with no Content-Type either
>> and my Gnus decided to convert it to octet-stream, I guess to be on the
>> safe side. No idea if something similar is happening to you, but wanted
>> to mention it anyway.

The emails I got from linux-mm mailing list do not have Content-Type either,
but the ones I got directly from my git-send-email have it. David is in the
cc list, so the emails sent to him should have Content-Type.

FYI, I sent the emails using git 2.35.1 via fastmail.com and have
transferEncoding=quoted-printable.

>
> Just to clarify, I assumed Gnus was doing the conversion to octet-stream
> but I never verified that.
>
> Heh, interestingly enough that patch was sent from redhat.com:
>
> https://lore.kernel.org/all/877d8eyz61.fsf@kernel.org/
>
> Is that just a coincidence or are Redhat servers doing something
> strange? If you find out, do let me know. I'm very curious :)

--
Best Regards,
Yan, Zi

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