cgroup tasks file error

[ccmail111]

Hi Serge,

Thanks for quick response.

I had mounted as:

 mount -t cgroup cpuset /dev/cgroup

After setting below, it works.
Thank you for helpful tip !


--- On Mon, 12/13/10, Serge E. Hallyn <serge.hallyn at canonical.com> wrote:

> From: Serge E. Hallyn <serge.hallyn at canonical.com>
> Subject: Re: cgroup tasks file error
> To: "ccmail111" <ccmail111 at yahoo.com>
> Cc: containers at lists.linux-foundation.org
> Date: Monday, December 13, 2010, 6:16 PM
> Quoting ccmail111 (ccmail111 at yahoo.com):
> > 
> > I see error:[host:/dev/cgroup]$ echo 693 >
> hello-test/tasks
> > -bash: echo: write error: No space left on device
> > [host:/dev/cgroup]$ pwd/dev/cgroup
> > 
> > But the user process is up and running..
> > 
> > [host:/dev/cgroup]$ ps aux | grep procroot       
> > 
> > 693  0.0  0.4  34720  1112 ttyS0    Sl   19:11
>   0:00 /opt/bin/myproc -ext
> > 
> > Also the cgroup exists and valid..
> > 
> > [host:/dev/cgroup]$ ls | grep hello-test
> > hello-test
> > 
> > What above error mean and any suggestions ?
> > Please email.
> 
> Which cgroups do you have composed on that mount?  I'm
> guess you
> have cpuset, and you need to set the cpuset.mems and
> cpuset.cpus.
> Until you do that, no tasks can be assigned to it.
> 
> -serge
>