Hi all,

We're completely stuck helpless with our CentOS system which we've been using as a VM server.
After an unanticipated system upgrade, we can't get virsh or virt-manager to connect to libvirt anymore. It gets completely stuck during startup, trying to connect.

One of the suspicious things we've seen is the following:

[root@ana libvirt]# netstat | grep /var/run/libvirt/libvirt-sock
unix  3      [ ]         STREAM     CONNECTING    0      /var/run/libvirt/libvirt-sock
unix  3      [ ]         STREAM     CONNECTING    0      /var/run/libvirt/libvirt-sock
unix  3      [ ]         STREAM     CONNECTING    0      /var/run/libvirt/libvirt-sock
unix  3      [ ]         STREAM     CONNECTING    0      /var/run/libvirt/libvirt-sock
unix  3      [ ]         STREAM     CONNECTING    0      /var/run/libvirt/libvirt-sock
....

I'm not adding more information here because there is so much we've tried that I wouldn't know where to start. I would be happy to provide any info that would be useful to solve this issue. 

Any hint or help would be greatly appreciated.

Thanks!

Julian