Hi, As the subject line indicates, when I'm calling virDomainCreate() to start a defined domain, and that command fails because the domain is already running at that point, virGetLastError() will return NULL, instead of a proper pointer to an error code. Libvirt will, however, print an error to the console: libvir: QEMU error : Requested operation is not valid: domain is already running This looks like a bug to me, and I'm fairly certain that earlier version would return an error code of VIR_ERR_OPERATION_INVALID at that point. Or maybe that was just virDomainDestroy(), and I'm just blindly assuming that virDomainCreate() will work analogously... Anyway, no error code is bad, because I can't tell what happened. This is version 0.9.8. I couldn't find anything about this issue in the changelogs for 0.9.9 and 0.9.10, so I'm assuming the issue has not been addressed since. Guido
