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Description of problem: Version-Release number of selected component (if applicable): # rpm -q kernel libvirt vdsm qemu-kvm spice-server kernel-2.6.32-209.el6.x86_64 libvirt-0.9.4-19.el6.x86_64 vdsm-4.9-96.1.el6.x86_64 qemu-kvm-0.12.1.2-2.200.el6.x86_64 spice-server-0.8.2-4.el6.x86_64 RHEV Manager for Servers and Desktops :3.0.0_0001-40.el6 How reproducible: 100% Steps to Reproduce: 1.on the host #mount -t cgroup -o cpu none /cgroup/ 2.start a VM via virt-manager 3.#on the host #tail -f /var/log/vdsm/libvirt.log Actual results: After step3.it shows following msg: 11:08:43.719: 13973: error : virNetClientProgramDispatchError:170 : Requested operation is not valid: cgroup CPU controller is not mounted <driver cache="none" error_policy="stop" io="threads" name="qemu" type="raw"/> Expected results: no cgroup error printed Additional info: I am not sure whether it is a libvirt bug or vdsm bug ,move it to the right component if I were wrong .
(In reply to comment #1) > All RPMs but VDSM are updated. Please update your VDSM as well and retry. Update vdsm to vdsm-4.9-110.el6.x86_64 still hit this issue , Based on above ,re-open this Bug .
Why are you mounting cgroup manually? Isn't cgroup service on when you boot? How come you can even start a VM via virt-manager? When Vdsm is installed, running VMs via non-Vdsm managers is blocked with sasl and unsupported. Please provide the needed info and reopen the bug if you also fail to start VMs from RHEV-M.
(In reply to comment #4) > Why are you mounting cgroup manually? Isn't cgroup service on when you boot? > I tried both all reports cgroup error in libvirt.log > How come you can even start a VM via virt-manager? When Vdsm is installed, > running VMs via non-Vdsm managers is blocked with sasl and unsupported. sorry ,the step2 should be :start VM via RHEV-M > > Please provide the needed info and reopen the bug if you also fail to start VMs > from RHEV-M. the VM could be started via RHEV-M ,but there are cgroup error logs which described in comment #0 in /var/log/vdsm/libvirt.log
Hi, Dan Based on comment #5, May I re-open this bug ? Best Regards, Mike
sure - I specifically asked you to reopen the bug if it's unrelated to virt-manager. However, you did not answer my question: Is cgroup service on when you boot? What's chkconfig --list cgroup. If it is only a logging issue, with no functional effect, I do not see it fixed for 6.2. But please discuss this with libvirt guys.
(In reply to comment #7) > sure - I specifically asked you to reopen the bug if it's unrelated to > virt-manager. > > However, you did not answer my question: Is cgroup service on when you boot? > What's chkconfig --list cgroup. Referring to the docs http://docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/6/html/Resource_Management_Guide/ch-Using_Control_Groups.html ,the services is disabled on boot #chkconfig --list |grep cgconfig cgconfig 0:off 1:off 2:off 3:off 4:off 5:off 6:off After #chkconfig --level 345 cgconfig on ,then reboot the guest ,the issue has gone. Thanks for pointing this ! Mike > > If it is only a logging issue, with no functional effect, I do not see it fixed > for 6.2. But please discuss this with libvirt guys.
based on comment #8 ,close this Bug