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Thu, 13 Aug 2020 08:27:40 -0700 (PDT) Date: Thu, 13 Aug 2020 11:26:34 -0400 From: Johannes Weiner To: Michal Hocko Cc: syzbot , Roman Gushchin , 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 Subject: Re: upstream boot error: WARNING in mem_cgroup_css_alloc Message-ID: <20200813152634.GB701678@cmpxchg.org> References: <00000000000019317f05acbf31bd@google.com> <20200813104416.GE9477@dhcp22.suse.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200813104416.GE9477@dhcp22.suse.cz> X-Rspamd-Queue-Id: 7D2F21804E3AD X-Spamd-Result: default: False [0.00 / 100.00] X-Rspamd-Server: rspam03 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: 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/