search for: qemusetupcgroupforvcpu

.... But we are mounting it well before it is started. We are facing the issue only while executing the "cpu-stats <domain name>" command. One more observation is that : While starting the domain, we are observing the below error. "2013-08-22 12:45:44.326+0000: 17554: warning : qemuSetupCgroupForVcpu:953 : Unable to get vcpus' pids." This may be the root cause of virsh cpu-stats not working. ( seems to be because of CPU pinning issue ) Because of this the VCPU directories are not created for the corresponding domain in "/dev/cgroup_<controller>/machine/<domain>.lib...

...u-stats command relies on the vCPU cgroups existing. These are > created when the guest starts. So the fact that cpu-stats can't find > the cgroups shows that something failed during startup. > > > Your log file shows this: > > 2013-08-22 12:45:44.326+0000: 17554: warning : qemuSetupCgroupForVcpu:953 > : Unable to get vcpus' pids.^M > > which is the root cause of your problems. > > If libvirt can't find the vcpu PIDs, this suggests that your guests are > running using QEMU TCG instead of KVM. > > Daniel > -- > |: http://berrange.com -o- http://w...

Hi Daniel, Thanks for your immidiate reply. The starting of virtual guest was ok on our machine. We are facing this issue while executing the "cpu-stats <domain name>" command. I have collected the debug logs as you suggested and attaching the same. <<libvirt_testing_starting_VG.log >> --> Log collected while starting the virtual guest

...and attaching the same. The cpu-stats command relies on the vCPU cgroups existing. These are created when the guest starts. So the fact that cpu-stats can't find the cgroups shows that something failed during startup. Your log file shows this: 2013-08-22 12:45:44.326+0000: 17554: warning : qemuSetupCgroupForVcpu:953 : Unable to get vcpus' pids.^M which is the root cause of your problems. If libvirt can't find the vcpu PIDs, this suggests that your guests are running using QEMU TCG instead of KVM. Daniel -- |: http://berrange.com -o- http://www.flickr.com/photos/dberrange/ :| |: http://l...

> > Hi All, > > Can you please guide us in solving this issue. > > Version used : libvirt-1.0.6 > # rpm -qa | egrep "libvirt|qemu" > qemu-kvm-0.14.1-1_WR4.3.x86_64_XXX.x86_64 > libvirt-1.0.6-1_WR4.3.x86_64_XXX.2.x86_64 > > Problem : > > # virsh cpu-stats CLA-0 > error: Failed to retrieve CPU statistics for domain 'CLA-0' > *error: