make[1]: `arch/i386/kernel/asm-offsets.s' is up to date. CHK include/linux/compile.h GEN .version CHK include/linux/compile.h UPD include/linux/compile.h CC init/version.o LD init/built-in.o LD .tmp_vmlinux1 arch/i386/kernel/built-in.o(.text+0xcd46): In function `acpi_apic_setup': : undefined reference to `smp_found_config' arch/i386/kernel/built-in.o(.text+0xcd4f): In function `acpi_apic_setup': : undefined reference to `clustered_apic_check' make: *** [.tmp_vmlinux1] Error 1 If I enable APIC the error goes away. I have a Dell laptop with a broken bios so the APIC doesn't enable so I leave it disabled in .config. My .config is attached. Jonathan