Hello, I have compiled the 2.5.11 kernel code but i have some error: ld -m elf_i386 -T /usr/src/linux-2.5.11/arch/i386/vmlinux.lds -e stext arch/i386/kernel/head.o arch/i386/kernel/init_task.o init/main.o init/version.o init/do_mounts.o \ --start-group \ arch/i386/kernel/kernel.o arch/i386/mm/mm.o kernel/kernel.o mm/mm.o fs/fs.o ipc/ipc.o \ /usr/src/linux-2.5.11/arch/i386/lib/lib.a /usr/src/linux-2.5.11/lib/lib.a /usr/src/linux-2.5.11/arch/i386/lib/lib.a \ drivers/parport/driver.o drivers/base/base.o drivers/char/char.o drivers/block/block.o drivers/misc/misc.o drivers/net/net.o drivers/media/media.o drivers/char/agp/agp.o drivers/char/drm/drm.o drivers/ide/idedriver.o drivers/scsi/scsidrv.o drivers/cdrom/driver.o sound/sound.o drivers/pci/driver.o drivers/pnp/pnp.o drivers/video/video.o drivers/usb/usbdrv.o drivers/input/inputdrv.o \ net/network.o \ --end-group \ -o vmlinux arch/i386/kernel/kernel.o: In function `intel_thermal_interrupt': arch/i386/kernel/kernel.o(.text+0x7851): undefined reference to `ack_APIC_irq' arch/i386/kernel/kernel.o: In function `intel_init_thermal': arch/i386/kernel/kernel.o(.text.init+0x2af2): undefined reference to `apic_read' arch/i386/kernel/kernel.o(.text.init+0x2b32): undefined reference to `apic_write_around' arch/i386/kernel/kernel.o(.text.init+0x2b51): undefined reference to `apic_read' arch/i386/kernel/kernel.o(.text.init+0x2b61): undefined reference to `apic_write_around' make: *** [vmlinux] Error 1 My .config is in attachament Thank you -- Abruzzo Silvio goku_vegeta@libero.it ^___^