I understand that swap file is meant to be the extension to memory. Any 32 bit OS has the limit of addressing memory of 2^32 bytes, ie. 4 GB
So on a system that's equipped with more than 4 GB of RAM, there's no way for any 32 bit OS to address anything beyond 4 GB boundary; so is there any reason to allocate swap for 32 bit OS that runs on a 4 GB system ??