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