linux-kernel - Re: [PATCH] hugetlbfs: fix hugetlb page migration/fault race causing SIGBUS

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Message-ID: <20190811234614.GZ17747@sasha-vm>
Date:   Sun, 11 Aug 2019 19:46:14 -0400
From:   Sasha Levin <sashal@...nel.org>
To:     Andrew Morton <akpm@...ux-foundation.org>
Cc:     Michal Hocko <mhocko@...nel.org>,
        Mike Kravetz <mike.kravetz@...cle.com>, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org, ltp@...ts.linux.it,
        Li Wang <liwang@...hat.com>,
        Naoya Horiguchi <n-horiguchi@...jp.nec.com>,
        Cyril Hrubis <chrubis@...e.cz>, xishi.qiuxishi@...baba-inc.com
Subject: Re: [PATCH] hugetlbfs: fix hugetlb page migration/fault race causing
 SIGBUS

On Fri, Aug 09, 2019 at 03:17:18PM -0700, Andrew Morton wrote:
>On Fri, 9 Aug 2019 08:46:33 +0200 Michal Hocko <mhocko@...nel.org> wrote:
>
>> > Maybe we should introduce the Fixes-no-stable: tag.  That should get
>> > their attention.
>>
>> No please, Fixes shouldn't be really tight to any stable tree rules. It
>> is a very useful indication of which commit has introduced bug/problem
>> or whatever that the patch follows up to. We in Suse are using this tag
>> to evaluate potential fixes as the stable is not reliable. We could live
>> with Fixes-no-stable or whatever other name but does it really makes
>> sense to complicate the existing state when stable maintainers are doing
>> whatever they want anyway? Does a tag like that force AI from selecting
>> a patch? I am not really convinced.
>
>It should work if we ask stable trees maintainers not to backport
>such patches.
>
>Sasha, please don't backport patches which are marked Fixes-no-stable:
>and which lack a cc:stable tag.

I'll add it to my filter, thank you!

--
Thanks,
Sasha