From mboxrd@z Thu Jan  1 00:00:00 1970
From: Johannes Weiner <hannes@cmpxchg.org>
Subject: Re: upstream boot error: WARNING in mem_cgroup_css_alloc
Date: Thu, 13 Aug 2020 11:26:34 -0400
Message-ID: <20200813152634.GB701678@cmpxchg.org>
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 <20200813104416.GE9477@dhcp22.suse.cz>
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To: Michal Hocko <mhocko@suse.com>
Cc: syzbot <syzbot+35d35ef677516d65bdda@syzkaller.appspotmail.com>, Roman Gushchin <guro@fb.com>, akpm@linux-foundation.org, cgroups@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, syzkaller-bugs@googlegroups.com, vdavydov.dev@gmail.com

On Thu, Aug 13, 2020 at 12:44:16PM +0200, Michal Hocko wrote:
> This smells like 3e38e0aaca9e ("mm: memcg: charge memcg percpu memory to
> the parent cgroup").

I just replied to the other thread on this issue here:

https://lore.kernel.org/lkml/20200813152033.GA701678@cmpxchg.org/