linux-kernel - Re: threads-max observe limits

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Message-ID: <20190919075911.GA15782@dhcp22.suse.cz>
Date:   Thu, 19 Sep 2019 09:59:11 +0200
From:   Michal Hocko <mhocko@...nel.org>
To:     Heinrich Schuchardt <xypron.glpk@....de>
Cc:     "Eric W. Biederman" <ebiederm@...ssion.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: threads-max observe limits

On Wed 18-09-19 09:15:41, Michal Hocko wrote:
> On Tue 17-09-19 12:26:18, Eric W. Biederman wrote:
[...]
> > b) Not being able to bump threads_max to the physical limit of
> >    the machine is very clearly a regression.
> 
> ... exactly this part. The changelog of the respective patch doesn't
> really exaplain why it is needed except of "it sounds like a good idea
> to be consistent".

Any take on this Heinrich? If there really is not strong reasoning about
the restricting user input then I will suggest reverting 16db3d3f1170
("kernel/sysctl.c: threads-max observe limits")

-- 
Michal Hocko
SUSE Labs