I comile it with the SMP command... and that worx fine... but when I run 'insmod tulip.o' it says: apic_reg: wrong version of undefined cpu_data: wrong version of undefines Loading failed! The module sysmbols (from linux-2.0.34) don't match your linux-2.0.34 whats wrong? --------------------------------------------------- http://www.monosoft.com -WolfDrive