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Subject: Re: [PATCH v21 00/19] per memcg lru lock
From:   Qian Cai <qcai@redhat.com>
To:     Hugh Dickins <hughd@google.com>
Cc:     Shakeel Butt <shakeelb@google.com>,
        Alex Shi <alex.shi@linux.alibaba.com>,
        Andrew Morton <akpm@linux-foundation.org>,
        Mel Gorman <mgorman@techsingularity.net>,
        Tejun Heo <tj@kernel.org>,
        Konstantin Khlebnikov <khlebnikov@yandex-team.ru>,
        Daniel Jordan <daniel.m.jordan@oracle.com>,
        Matthew Wilcox <willy@infradead.org>,
        Johannes Weiner <hannes@cmpxchg.org>,
        kernel test robot <lkp@intel.com>,
        Linux MM <linux-mm@kvack.org>,
        LKML <linux-kernel@vger.kernel.org>,
        Cgroups <cgroups@vger.kernel.org>,
        Joonsoo Kim <iamjoonsoo.kim@lge.com>,
        Wei Yang <richard.weiyang@gmail.com>,
        "Kirill A. Shutemov" <kirill@shutemov.name>,
        alexander.duyck@gmail.com,
        kernel test robot <rong.a.chen@intel.com>,
        Michal Hocko <mhocko@suse.com>,
        Vladimir Davydov <vdavydov.dev@gmail.com>,
        Yang Shi <shy828301@gmail.com>
Date:   Tue, 05 Jan 2021 17:01:37 -0500
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On Tue, 2021-01-05 at 13:35 -0800, Hugh Dickins wrote:
> This patchset went into mmotm 2020-11-16-16-23, so probably linux-next
> on 2020-11-17: you'll have had three trouble-free weeks testing with it
> in, so it's not a likely suspect.  I haven't looked yet at your report,
> to think of a more likely suspect: will do.

Probably my memory was bad then. Unfortunately, I had 2 weeks holidays before
the Thanksgiving as well. I have tried a few times so far and only been able to
reproduce once. Looks nasty...