Re: Can't make Directory in /sys/fs/cgroup as SU

[Konstantin Svist <fry.kun@xxxxxxxxx>]

On 11/19/2010 09:02 AM, Jim wrote:

Fedora 13

Trying to make Directory cpu in /sys/fs/cgroup as SU as per this below Website states
And it keeps saying,  "No such file or directory"

/sys/fs/cgroup does exist.

# cd /sys/fs/cgroup/
[root@Bigone cgroup]# ls -al
total 0

drwxr-xr-x. 2 root root 0 Nov 19 11:26 .
drwxr-xr-x. 5 root root 0 Nov 14 12:11 ..

So the command below won't work

mount -t cgroup cgroup /sys/fs/cgroup/cpu -o cpu
mkdir -m 0777 /sys/fs/cgroup/cpu/user

http://www.webupd8.org/2010/11/alternative-to-200-lines-kernel-patch.html

Try this one, instead (mostly from http://lkml.org/lkml/2010/11/16/413)

add to .bashrc:

if [ "$PS1" ] ; then
        mkdir -m 0700 -p /cgroup/cpu/user/$$
        echo 1 > /cgroup/cpu/user/$$/notify_on_release
        echo $$ > /cgroup/cpu/user/$$/tasks
fi

create /bin/rmcgroup:

#!/bin/bash
rmdir /cgroup/cpu/$1

add to /etc/rc.local:

mount -t cgroup -o cpu none /cgroup/cpu
mkdir -p -m 0777 /cgroup/cpu/user
echo "/bin/rmcgroup" > /cgroup/cpu/release_agent

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