I want to rebuild linux-3.16.3-200.fc20.x86_64 with options: CONFIG_GENERIC_CMOS_UPDATE=n CONFIG_X86_TSC=n But it seams that "make olddefconfig" enables these options again because of dependencies. I found the "select GENERIC_CMOS_UPDATE" entries in arch/*/Kconfig files - if I remove them, I am able to build a kernel with CONFIG_GENERIC_CMOS_UPDATE=n. It's selected by default but does not seam to be necessary isn't it? I am not able to disable CONFIG_X86_TSC. It seams that Xen (arch/x86/xen/Kconfig) depends on X86_TSC - so I disabled all the XEN stuff. May arch/x86/Kconfig.cpu (config X86_TSC - def_bool y) is the reason that CONFIG_X86_TSC is enabled again? I thought it's just on of multiple clock sources isn't it? It's my first email to a kernel mailing list so please be clement - feetback welcome. :-) Mit freundlichen Grüßen/Best regards Stefan Lauterwasser Software Engineer Transportation Systems Thales Deutschland Email: Stefan.Lauterwasser@xxxxxxxxxxxxxxx Web: www.thalesgroup.com -------------------------------------------------------------- Thales Transportation Systems GmbH Thalesplatz 1 - 71254 Ditzingen - Germany -- To unsubscribe from this list: send the line "unsubscribe linux-config" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html