[Try to add maintainer into CC]
On Tue 27-05-14 18:35:45, Michal Hocko wrote:
> Hi,
> I have the following /etc/cgconfig.conf:
> mount {
> memory = /sys/fs/cgroup/memory;
> }
>
> group foo {
> perm {
> task {
> uid = root;
> gid = users;
> fperm = 660;
> }
> admin {
> uid = root;
> gid = root;
> fperm = 600;
> dperm = 750;
> }
> }
> }
>
> mount says that there is memory controller mounted yet.
> Yet when I try to use cgconfigparser on the file, no group gets created
> and there is no error message printed either:
>
> # CGROUP_LOGLEVEL=DEBUG cgconfigparser -l /etc/cgconfig.conf
> found cpuset in rw,nosuid,nodev,noexec,relatime,cpuset
> Found cgroup option rw,nosuid,nodev,noexec,relatime,cpuset, count 0
> found cpu in rw,nosuid,nodev,noexec,relatime,cpuacct,cpu
> Found cgroup option rw,nosuid,nodev,noexec,relatime,cpuacct,cpu, count 1
> found cpuacct in rw,nosuid,nodev,noexec,relatime,cpuacct,cpu
> Found cgroup option rw,nosuid,nodev,noexec,relatime,cpuacct,cpu, count 2
> found devices in rw,nosuid,nodev,noexec,relatime,devices
> Found cgroup option rw,nosuid,nodev,noexec,relatime,devices, count 3
> found freezer in rw,nosuid,nodev,noexec,relatime,freezer
> Found cgroup option rw,nosuid,nodev,noexec,relatime,freezer, count 4
> found blkio in rw,nosuid,nodev,noexec,relatime,blkio
> Found cgroup option rw,nosuid,nodev,noexec,relatime,blkio, count 5
> found perf_event in rw,nosuid,nodev,noexec,relatime,perf_event
> Found cgroup option rw,nosuid,nodev,noexec,relatime,perf_event, count 6
> found hugetlb in rw,nosuid,nodev,noexec,relatime,hugetlb
> Found cgroup option rw,nosuid,nodev,noexec,relatime,hugetlb, count 7
> found memory in rw,relatime,memory
> Found cgroup option rw,relatime,memory, count 8
> creating group foo, error 0
> creating all cgroups now, error=0
>
> # stat /sys/fs/cgroup/memory/foo
> stat: cannot stat ‘/sys/fs/cgroup/memory/foo’: No such file or directory
>
> So far I was only able to debug that cgroup_create_cgroup doesn't do
> anything because the cgroup->index is 0. It seems that the only place
> where cgroup->index is updated is cgroup_add_controller which is not
> called before cgroup_create_cgroup. I have no idea why, though.
>
> Am I doing something utterly wrong or is this a bug?
>
> Let me know if you need any further information.
> Thanks!
Ohh and I of course forgot to add the most important information. I am
using 0.41-rc1 in Opensuse Factory [1] but the same happens even on
another Debian box with 0.41. The Debian box doesn't have systemd init.
---
[1] - https://build.opensuse.org/package/show/Virtualization/libcgroup
--
Michal Hocko
SUSE Labs
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