linux-kernel - Re: [Workman-devel] cgroup: status-quo and userland efforts

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20130630183838.GB23731@dhcp22.suse.cz>
Date:	Sun, 30 Jun 2013 20:38:38 +0200
From:	Michal Hocko <mhocko@...e.cz>
To:	Vivek Goyal <vgoyal@...hat.com>
Cc:	Tejun Heo <tj@...nel.org>, Tim Hockin <thockin@...kin.org>,
	Mike Galbraith <bitbucket@...ine.de>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Containers <containers@...ts.linux-foundation.org>,
	Kay Sievers <kay.sievers@...y.org>,
	lpoetter <lpoetter@...hat.com>,
	workman-devel <workman-devel@...hat.com>,
	"dhaval.giani" <dhaval.giani@...il.com>,
	Cgroups <cgroups@...r.kernel.org>,
	bsingharora <bsingharora@...il.com>
Subject: Re: [Workman-devel] cgroup: status-quo and userland efforts

On Fri 28-06-13 14:01:55, Vivek Goyal wrote:
> On Fri, Jun 28, 2013 at 05:05:13PM +0200, Michal Hocko wrote:
[...]
> > OK, so libcgroup's rules daemon will still work and place my tasks in
> > appropriate cgroups?
> 
> Do you use that daemon in practice?

I am not but my users do. And that is why I care.

> For user session logins, I think systemd has plans to put user
> sessions in a cgroup (kind of making pam_cgroup redundant).
> 
> Other functionality rulesengined was providing moving tasks automatically
> in a cgroup based on executable name. I think that was racy and not
> many people had liked it.

It doesn't make sense for short lived processes, all right, but it can
be useful for those that live for a long time.
 
> IIUC, systemd can't disable access to cgroupfs from other utilities.

The previous messages read otherwise. And that is why this rised the red
flag at many fronts.

> So most likely rulesengined should contine to work. But having both
> systemd and libcgroup might not make much sense though.
> 
> Thanks
> Vivek

-- 
Michal Hocko
SUSE Labs
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/