tag	line	file	source code
low_memory_start	132	init/main.c	static unsigned long low_memory_start = 0;
low_memory_start	390	init/main.c	low_memory_start = PAGE_SIZE;
low_memory_start	393	init/main.c	low_memory_start = (unsigned long) &end;
low_memory_start	395	init/main.c	low_memory_start = PAGE_ALIGN(low_memory_start);
low_memory_start	423	init/main.c	mem_init(low_memory_start,memory_start,memory_end);