[Lxc-users] Latest test results - Was: cgroups: support cgroups mounted in multiple places (v3)

[Michael H. Warfield]

On Sat, 2011-07-02 at 15:13 -0500, Serge Hallyn wrote: 
> Quoting Michael H. Warfield (mhw at WittsEnd.com):
> ...
> > F15 systemd:      Passed.
> > F12 single mount: Passed.
> > F13 single mount: Passed.
> > F14 single mount: Passed.
> > F14 libcgroup:    Failed.
> > 
> > I had the default /etc/cgconfig.conf file and here are the results:
> > 
> > [root at berserker-base ~]# cat /etc/cgconfig.conf 
> > #
> > #  Copyright IBM Corporation. 2007
> > #
> > #  Authors:	Balbir Singh <balbir at linux.vnet.ibm.com>
> > #  This program is free software; you can redistribute it and/or modify it
> > #  under the terms of version 2.1 of the GNU Lesser General Public License
> > #  as published by the Free Software Foundation.
> > #
> > #  This program is distributed in the hope that it would be useful, but
> > #  WITHOUT ANY WARRANTY; without even the implied warranty of
> > #  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
> > #
> > # See man cgconfig.conf for further details.
> > #
> > # By default, mount all separately controllers
> > # to /cgroup/<controller name>
> > 
> > mount {
> > 	cpuset	= /cgroup/cpuset;
> > 	cpu	= /cgroup/cpu;
> > 	cpuacct	= /cgroup/cpuacct;
> > 	memory	= /cgroup/memory;
> > 	devices	= /cgroup/devices;
> > 	freezer	= /cgroup/freezer;
> > 	net_cls	= /cgroup/net_cls;
> > 	ns	= /cgroup/ns;
> > 	blkio	= /cgroup/blkio;
> > }
> > 
> > [root at berserker-base ~]# uname -a
> > Linux berserker-base.wittsend.com 2.6.35.13-92.fc14.i686 #1 SMP Sat May 21 17:39:42 UTC 2011 i686 i686 i386 GNU/Linux
> > [root at berserker-base ~]# mount -t cgroup
> > cgroup on /cgroup/cpuset type cgroup (rw,relatime,cpuset)
> > cgroup on /cgroup/cpu type cgroup (rw,relatime,cpu)
> > cgroup on /cgroup/cpuacct type cgroup (rw,relatime,cpuacct)
> > cgroup on /cgroup/memory type cgroup (rw,relatime,memory)
> > cgroup on /cgroup/devices type cgroup (rw,relatime,devices)
> > cgroup on /cgroup/freezer type cgroup (rw,relatime,freezer)
> > cgroup on /cgroup/net_cls type cgroup (rw,relatime,net_cls)
> > cgroup on /cgroup/ns type cgroup (rw,relatime,ns)
> > cgroup on /cgroup/blkio type cgroup (rw,relatime,blkio)
> > [root at berserker-base ~]# lxc-start -n Ashaman
> > lxc-start: no ns_cgroup option specified

> Just a thought - does F14's kernel not support clone_children?  See output
> of ls /cgroup/cpuset and see if /cgroup/cpuset/cgroup.clone_children exists.
> If not, then yeah there's nothing that can be done without the ns cgroup.

1) The ns cgroup does exist and is mounted.

2) It works with the single mount point and clone children is not
present.


To answer your question...

[mhw at berserker-base ~]$ ls /cgroup/cpuset/
cgroup.event_control            cpuset.memory_spread_page
cgroup.procs                    cpuset.memory_spread_slab
cpuset.cpu_exclusive            cpuset.mems
cpuset.cpus                     cpuset.sched_load_balance
cpuset.mem_exclusive            cpuset.sched_relax_domain_level
cpuset.mem_hardwall             libvirt
cpuset.memory_migrate           notify_on_release
cpuset.memory_pressure          release_agent
cpuset.memory_pressure_enabled  tasks

I guess not...


> Thanks for testing!

If that's all I can do, I'll do the best I can.  I'm currently up to my
eyeballs in another OpenSource project, some XAUTH coding in Openswan.
I need about 6 clones of me, I swear.  :-P

> -serge

Regards,
Mike
-- 
Michael H. Warfield (AI4NB) | (770) 985-6132 |  mhw at WittsEnd.com
   /\/\|=mhw=|\/\/          | (678) 463-0932 |  http://www.wittsend.com/mhw/
   NIC whois: MHW9          | An optimist believes we live in the best of all
 PGP Key: 0x674627FF        | possible worlds.  A pessimist is sure of it!
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