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Message-ID: <03b3a6bc-586a-2b45-a60c-5ab81076bf13@kernel.dk>
Date:   Wed, 1 Jun 2022 00:16:11 -0600
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Subject: Re: [PATCH -next v5 0/3] support concurrent sync io for bfq on a
 specail occasion
Content-Language: en-US
To:     Yu Kuai <yukuai3@huawei.com>, Jan Kara <jack@suse.cz>
Cc:     paolo.valente@linaro.org, tj@kernel.org,
        linux-block@vger.kernel.org, cgroups@vger.kernel.org,
        linux-kernel@vger.kernel.org, yi.zhang@huawei.com
References: <20220428120837.3737765-1-yukuai3@huawei.com>
 <d50df657-d859-79cf-c292-412eaa383d2c@huawei.com>
 <61b67d5e-829c-8130-7bda-81615d654829@huawei.com>
 <81411289-e13c-20f5-df63-c059babca57a@huawei.com>
 <d5a90a08-1ac6-587a-e900-0436bd45543a@kernel.dk>
 <55919e29-1f22-e8aa-f3d2-08c57d9e1c22@huawei.com>
 <20220523085902.wmxoebyq3crerecr@quack3.lan>
 <25f6703e-9e10-75d9-a893-6df1e6b75254@kernel.dk>
 <20220523152516.7sr247i3bzwhr44w@quack3.lan>
 <13ad158e-7859-ca61-209e-7d1fe99d0bdb@huawei.com>
From:   Jens Axboe <axboe@kernel.dk>
In-Reply-To: <13ad158e-7859-ca61-209e-7d1fe99d0bdb@huawei.com>
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On 5/23/22 7:13 PM, Yu Kuai wrote:
> ? 2022/05/23 23:25, Jan Kara ??:
>> On Mon 23-05-22 06:36:58, Jens Axboe wrote:
>>> On 5/23/22 2:59 AM, Jan Kara wrote:
>>>> On Mon 23-05-22 09:10:38, yukuai (C) wrote:
>>>>> ? 2022/05/21 20:21, Jens Axboe ??:
>>>>>> On 5/21/22 1:22 AM, yukuai (C) wrote:
>>>>>>> ? 2022/05/14 17:29, yukuai (C) ??:
>>>>>>>> ? 2022/05/05 9:00, yukuai (C) ??:
>>>>>>>>> Hi, Paolo
>>>>>>>>>
>>>>>>>>> Can you take a look at this patchset? It has been quite a long time
>>>>>>>>> since we spotted this problem...
>>>>>>>>>
>>>>>>>>
>>>>>>>> friendly ping ...
>>>>>>> friendly ping ...
>>>>>>
>>>>>> I can't speak for Paolo, but I've mentioned before that the majority
>>>>>> of your messages end up in my spam. That's still the case, in fact
>>>>>> I just marked maybe 10 of them as not spam.
>>>>>>
>>>>>> You really need to get this issued sorted out, or you will continue
>>>>>> to have patches ignore because folks may simply not see them.
>>>>>>
>>>>> Hi,
>>>>>
>>>>> Thanks for your notice.
>>>>>
>>>>> Is it just me or do you see someone else's messages from *huawei.com
>>>>> end up in spam? I tried to seek help from our IT support, however, they
>>>>> didn't find anything unusual...
>>>>
>>>> So actually I have noticed that a lot of (valid) email from huawei.com (not
>>>> just you) ends up in the spam mailbox. For me direct messages usually pass
>>>> (likely matching SPF records for originating mail server save the email
>>>> from going to spam) but messages going through mailing lists are flagged as
>>>> spam because the emails are missing valid DKIM signature but huawei.com
>>>> DMARC config says there should be DKIM signature (even direct messages are
>>>> missing DKIM so this does not seem as a mailing list configuration issue).
>>>> So this seems as some misconfiguration of the mails on huawei.com side
>>>> (likely missing DKIM signing of outgoing email).
>>>
>>> SPF/DKIM was indeed a problem earlier for yukaui patches, but I don't
>>> see that anymore. Maybe it's still an issue for some emails, from them
>>> or Huawei in general?
>>
>> Hum, for me all emails from Huawei I've received even today fail the DKIM
>> check. After some more digging there is interesting inconsistency in DMARC
>> configuration for huawei.com domain. There is DMARC record for huawei.com
>> like:
>>
>> huawei.com.        600    IN    TXT    "v=DMARC1;p=none;rua=mailto:dmarc@edm.huawei.com"
>>
>> which means no DKIM is required but _dmarc.huawei.com has:
>>
>> _dmarc.huawei.com.    600    IN    TXT    "v=DMARC1;p=quarantine;ruf=mailto:dmarc@huawei.com;rua=mailto:dmarc@huawei.com"
>>
>> which says that DKIM is required. I guess this inconsistency may be the
>> reason why there are problems with DKIM validation for senders from
>> huawei.com. Yu Kuai, can you perhaps take this to your IT support to fix
>> this? Either make sure huawei.com emails get properly signed with DKIM or
>> remove the 'quarantine' record from _dmarc.huawei.com. Thanks!
> Of course, I'll try to contact our IT support.

I second that, pretty much every email has been going into spam since, I
guess you just had a few lucky ones. Looks like Jan is right, it's a
server side configuration error that's causing this, and it's still
happening

-- 
Jens Axboe