From: Michal Hocko <mhocko@kernel.org>
To: Randy Dunlap <rdunlap@infradead.org>
Cc: Frank Vosberg <frank.vosberg@sscs.com>,
"linux-mm@kvack.org" <linux-mm@kvack.org>
Subject: Re: Kernel problem
Date: Fri, 12 May 2017 07:56:55 +0200 [thread overview]
Message-ID: <20170512055655.GA6803@dhcp22.suse.cz> (raw)
In-Reply-To: <bbde3fc7-fa8c-7872-1099-44a3c293ffba@infradead.org>
On Thu 11-05-17 09:57:25, Randy Dunlap wrote:
[...]
> I'll let someone else comment on the actual warning message:
> Creating hierarchies with use_hierarchy==0 (flat hierarchy) is considered deprecated. If you believe that your setup is correct, we kindly ask you to contact linux-mm@kvack.org and let us know
Well, this warning just says that using not hierarchical memory cgroup
hierarchy is a bad idea and this behavior will not be supported for ever
(or for v2 cgroup for that matter). It should warn users who are using
old kernels to either change their configuration or complain that they
have a valid usecase for such a configuration so that we can think of an
alternative approach. From the original email it is not clear to me
whether this configuration is intentional or not, though.
--
Michal Hocko
SUSE Labs
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prev parent reply other threads:[~2017-05-12 5:56 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-05-11 15:17 Kernel problem Frank Vosberg
2017-05-11 16:57 ` Randy Dunlap
2017-05-11 17:30 ` AW: " Frank Vosberg
2017-05-12 5:56 ` Michal Hocko [this message]
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