Sorry . I have'nt got an answer from the user's list .
I have fedora14 installed with its standard libvirt-0.8.3. I can start VM using .xml files and also run: virsh schedinfo. the cgroup CPU controller is mounted and active . In fact I have the path to the Virtual
machine : /dev/cgroup/cpu/libvirt/qemu/<vm name>
I now upgraded to libvirt-0.8.8 from a tar ball ( configure , make , make install) . I rebooted , new libvirtd started . virsh is working ok (I can create a vm) except for the commands : schedinfo and memtune
Hi The bugzilla advice/patch below is not relevant here . Please see what is the reason for virsh schedinfo / memtune not woking with libvirt-0.8.8 and libcgroup-0.36 while it does work with libvirt-0.8.3 and same libcgroup . Please dispatch to the appropriate person if you know the guy in charge. thanks Zvi Dubitzky Email:dubi@il.ibm.com From: Osier Yang <jyang@redhat.com> To: Zvi Dubitzky/Haifa/IBM@IBMIL Cc: libvir-list@redhat.com Date: 28/03/2011 07:40 Subject: Re: [libvirt] virsh sechedinfo/memtune with libvirt-0.8.8 于 2011年03月28日 12:52, Zvi Dubitzky 写道: that
e.g. say upon ' virsh schedinfo<vm name>'
Scheduler : Unknown error: Requested operation is not valid: cgroup CPU controller is not mounted
But the CPU controller is mounted because I have the path : /dev/cgroup/cpu/libvirt/qemu/ . What I am missing is the<vm_name> group which is not generated despite that the VM was generated ok by virsh create and I can access it.
Any idea what is missing ?
AFAIK, it's some problem of libcgroup: https://bugzilla.redhat.com/show_bug.cgi?id=640282 Guess following will work for you: # cgclear # cgconfigparser -l /etc/cgconfig.conf Regards Osier