From: Alex Shi <alex.shi@linux.alibaba.com>
To: Qian Cai <cai@lca.pw>, LKML <linux-kernel@vger.kernel.org>,
Andrew Morton <akpm@linux-foundation.org>
Cc: aarcange@redhat.com, daniel.m.jordan@oracle.com,
hannes@cmpxchg.org, hughd@google.com, khlebnikov@yandex-team.ru,
kirill@shutemov.name, kravetz@us.ibm.com, mhocko@kernel.org,
mm-commits@vger.kernel.org, tj@kernel.org,
vdavydov.dev@gmail.com, willy@infradead.org,
yang.shi@linux.alibaba.com
Subject: Re: [failures] mm-vmscan-remove-unnecessary-lruvec-adding.patch removed from -mm tree
Date: Fri, 6 Mar 2020 17:04:20 +0800 [thread overview]
Message-ID: <b123f1d8-eab0-4689-9400-ba1f853728b7@linux.alibaba.com> (raw)
In-Reply-To: <211632B1-2D6F-4BFA-A5A0-3030339D3D2A@lca.pw>
在 2020/3/6 上午11:32, Qian Cai 写道:
>
>> On Mar 5, 2020, at 9:50 PM, akpm@linux-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…
>
> [ 4389.727184][ T6600] mem_cgroup_update_lru_size(00000000bb31aaed, 0, -7): lru_size -1
This bug seems failed due to a update_lru_size() missing or misplace, but
what's I changed on this patch seems unlike to cause this bug.
Anyway, Qian, could you do me a favor to remove this patch and try again?
Since I am trying ltp's oom01 case,
# i=0; while :; do echo $((i++)); oom01; sleep 5; done
It runs well in dozens times on my qemu and hardware machine, on akpm branch commit f2cbd107a99b,
which included my 6 patches.
Andrew,
What's the reproduce steps for this test failure?
Thanks a lot for everyone!
Alex
next prev parent reply other threads:[~2020-03-06 9:04 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20200306025041.rERhvnYmB%akpm@linux-foundation.org>
2020-03-06 3:32 ` [failures] mm-vmscan-remove-unnecessary-lruvec-adding.patch removed from -mm tree Qian Cai
2020-03-06 3:38 ` Matthew Wilcox
2020-03-06 3:50 ` Qian Cai
2020-03-06 4:17 ` Hugh Dickins
2020-03-06 4:42 ` Alex Shi
2020-03-06 4:46 ` Qian Cai
2020-03-06 13:30 ` Alex Shi
2020-03-06 14:54 ` Johannes Weiner
2020-03-06 9:04 ` Alex Shi [this message]
2020-03-06 11:58 ` Alex Shi
2020-03-07 2:27 ` Qian Cai
2020-03-07 3:26 ` Alex Shi
2020-03-07 3:31 ` Qian Cai
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