Hi all. Maybe I just picked a bad time to try, but... arch/x86/kernel/alternative.c: In function 'apply_alternatives': arch/x86/kernel/alternative.c:191: error: 'VSYSCALL_START' undeclared (first use in this function) arch/x86/kernel/alternative.c:191: error: (Each undeclared identifier is reported only once arch/x86/kernel/alternative.c:191: error: for each function it appears in.) arch/x86/kernel/alternative.c:191: error: 'VSYSCALL_END' undeclared (first use in this function) make[1]: *** [arch/x86/kernel/alternative.o] Error 1 make: *** [arch/x86/kernel] Error 2 This is UP AMD64. Config attached. Regards, Nigel