linux-kernel - Re: [failures] mm-vmscan-remove-unnecessary-lruvec-adding.patch removed from -mm tree

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <1E0DE356-9F9B-4E00-9F53-85E2FED99CF2@lca.pw>
Date:   Thu, 5 Mar 2020 23:46:26 -0500
From:   Qian Cai <cai@....pw>
To:     Alex Shi <alex.shi@...ux.alibaba.com>
Cc:     Hugh Dickins <hughd@...gle.com>,
        Matthew Wilcox <willy@...radead.org>,
        LKML <linux-kernel@...r.kernel.org>,
        Andrew Morton <akpm@...ux-foundation.org>, aarcange@...hat.com,
        daniel.m.jordan@...cle.com, hannes@...xchg.org,
        khlebnikov@...dex-team.ru, kirill@...temov.name,
        kravetz@...ibm.com, mhocko@...nel.org, mm-commits@...r.kernel.org,
        tj@...nel.org, vdavydov.dev@...il.com, yang.shi@...ux.alibaba.com,
        linux-mm@...ck.org
Subject: Re: [failures] mm-vmscan-remove-unnecessary-lruvec-adding.patch
 removed from -mm tree



> On Mar 5, 2020, at 11:42 PM, Alex Shi <alex.shi@...ux.alibaba.com> wrote:
> 
> 
> 
> 在 2020/3/6 下午12:17, Hugh Dickins 写道:
>> On Thu, 5 Mar 2020, Qian Cai wrote:
>>>> On Mar 5, 2020, at 10:38 PM, Matthew Wilcox <willy@...radead.org> wrote:
>>>> 
>>>> On Thu, Mar 05, 2020 at 10:32:18PM -0500, Qian Cai wrote:
>>>>>> On Mar 5, 2020, at 9:50 PM, akpm@...ux-foundation.org wrote:
>>>>>> The patch titled
>>>>>>   Subject: mm/vmscan: remove unnecessary lruvec adding
>>>>>> has been removed from the -mm tree.  Its filename was
>>>>>>   mm-vmscan-remove-unnecessary-lruvec-adding.patch
>>>>>> 
>>>>>> This patch was dropped because it had testing failures
>>>>> Andrew, do you have more information about this failure? I hit a bug
>>>>> here under memory pressure and am wondering if this is related
>>>>> which might save me some time digging…
>> Very likely related.
>> 
> 
> Hi all,
> 
> Apologize for the trouble!
> And Many thanks for you all for the report!
> Obviously, I missed memory stress testing which I should do. Apologize again!
> 
> Qian Cai,
> Which test case are you using? Could you share the reproduce steps for me?


LTP oom01 in a tight loop with swap,

# i=0; while :; do echo $((i++)); oom01; sleep 5; done

> 
> Hugh,
> Many thanks for help! I will seek some memory stress case and waiting for your case.
> 
> 
> Thank you all!
> Alex