[libvirt-users] Listing machines as non-root user

I have a problem with virsh. I'm using eucalyptus software on top of xen 4 (debian squeeze). The problem is that unix user "eucalyptus" cannot see vm machines when it executes "virsh list". My libvirt version is 0.8.8-3 from debian sid repository. The same problem occurs with older versions. What is more I have tried to change unix_sock_ro_perms to "2777". After libvirt restart it started to work. Even when I reverted this change it was still working. Unfortunately after server restart virsh still does not work (I am not sure but I cannot restart my production servers right now). Everything is fine when I run virsh as root. I have the same issue on 7 machines. regards M. Galkiewicz