Hi ! I'm trying to get a working installation of Xen 4.11 from source, with Libvirt. I managed to compile, install and boot on Xen so far. But when I start the libvirt daemon, it fails with the following error: info : libvirt version: 4.1.0, package: 5.fc28 (Fedora Project, 2018-08-23-19:00:58, buildvm-19 error : libxlDriverConfigNew:1644 : Unable to configure libxl's memory management parameters error : virStateInitialize:775 : Initialization of LIBXL state driver failed: no error error : daemonRunStateInit:837 : Driver state initialization failed So there are 2 things here: - why libvirt is unable to configure Libxl ? where should i look for any clues ? - "Initialization of LIBXL state driver failed: no error" it looks like a bug in Libvirt, if it fails, an error message should be reported Thank you. -- Mathieu Tarral Sent with ProtonMail Secure Email.