Hi, As far as I understand the APIC stuff it is something CPU internal. That's why I want to ask, wether it can be tested with UML. Igor -- http://www.fsf.org/philosophy/no-word-attachments.de.html -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/