[libvirt-users] snapshot-create fails with "error: Failed to open file '(null)': Bad address"

Hello. I'm not able to create a snapshot for none of my vm's running on a particular node. And i have absolut no idea where to look to solve this. Someone can point me to the right direction? hn images # qemu-x86_64 -version qemu-x86_64 version 1.2.2 (qemu-kvm-1.2.0), Copyright (c) 2003-2008 Fabrice Bellard hn images # libvirtd --version libvirtd (libvirt) 1.0.3 hn images # qemu-img info gentoo-template.qcow2 image: gentoo-template.qcow2 file format: qcow2 virtual size: 130G (139586437120 bytes) disk size: 30G cluster_size: 65536 hn images # virsh snapshot-create gentoo-template error: Failed to open file '(null)': Bad address hn images # hn images # uname -a Linux hn 3.8.2 #1 SMP Sat Mar 9 12:17:41 CET 2013 x86_64 Intel(R) Core(TM) i7-2600 CPU @ 3.40GHz GenuineIntel GNU/Linux hn images # thank you t.