Just in case this is useful, I'd like to submit this change below that was not present at least in 1.0.4 http://git.onelab.eu/?p=libvirt.git;a=blob;f=virgetlasterror.patch;h=9109d581256f35bca7b4e6b1b70cef4433413474;hb=HEAD I'd taken this hint here in the first place http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=700077 -- Thierry