Thanks, that really solved my problem. However, I must point out that searching the archives for "active_load_balance" produced no results. Athanassios -----Original Message----- From: Christoph Wickert [mailto:christoph.wickert@xxxxxx] Sent: Tuesday, March 30, 2004 4:08 PM To: For users of Fedora Core releases > Any ideas why this error occurs even with the original non SMP kernel > configuration? Because you did not rum "make oldconfig"? Run make oldconfig twice (!) before you start compiling. Has been discussed on this list a mio times, search the archives for "active_load_balance" if you want more info. Christoph