Thread stacks in Linux are demand-paged: if you touch the next page then it magically exists, up to a limit. But the machine is not concerned with the convenien

Thread stacks in Linux are demand-paged: if you touch the next page then it magically exists, up to a limit. But the machine is not concerned with the convenient properties of this virtual memory area. To the CPU the register RSP is just an operand, expressed or implied, to some instructions.