Re: [gentoo-user] cgroupd really do work!

[Florian Philipp <lists@f_philipp.fastmail.net>]

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Am 06.12.2010 00:54, schrieb Bill Longman:
> 
> 
>     Hmm, I just noticed that something is not right here: Everything works
>     fine as long as I limit the cgroups to cpu scheduling (`mount -t cgroup
>     cgroup /dev/cgroup -o cpu`). As soon as I add the blkio subsystem for
>     disk I/O scheduling ("-o cpu,blkio" or no "-o" at all), I can no longer
>     create cgroup hierarchies. Only the top level "user" cgroup is accepted.
> 
>     Another issue is that the kernel documentation in
>     /usr/src/linux/Documentation/cgroups/cgroups.txt specifies that the
>     release_agent can also be included as a mount option with
>     `mount -t cgroup cgroup /dev/cgroup -o
>     cpu,release_agent='/usr/local/sbin/cgroup_clean'`
>     That seems to be no valid option, though. At least on my system it
>     causes mount to fail. Unfortunately there is no output on dmesg.
> 
>     Can someone else reproduce this? I'm on gentoo-sources-2.6.34-r12.
> 
> 
> I had this very same problem when I was trying this last year, Florian.
> I didn't pursue it any further so I can't tell you any solutions. I do
> remember it though because it was quite frustrating.
> 
> -- 
> Bill Longman

Thanks for the answer!

I think I've found the answer, at least for the first issue: Look at
this bug: https://bugzilla.kernel.org/show_bug.cgi?id=15980

I still don't know what causes the second issue.

Regards,
Florian Philipp


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