KERNEL_STACK_SIZE   34 include/asm-cris/processor.h #define KERNEL_STACK_SIZE PAGE_SIZE
KERNEL_STACK_SIZE   22 include/asm-parisc/processor.h #define KERNEL_STACK_SIZE 	(4*PAGE_SIZE)
KERNEL_STACK_SIZE   40 include/asm-xtensa/ptrace.h #define KERNEL_STACK_SIZE (2 * PAGE_SIZE)