On Thu, May 05, 2011 at 05:36:04PM +0200, Jes Sorensen wrote: > On 05/05/11 17:18, Michael S. Tsirkin wrote: > >> > A memory size can obviously not be bigger than the maximum physical > >> > address, so I find it really hard to see how this could overflow. > > For example, a 4G size does not fit in 32 bits. > > That is the only corner case
True. > you can handle that by -1 if you like. But then all users need to be updated. Seems easier to break out of the loop easier. It's likely not a real problem, certainly not on a pc, don't know about other systems. > Jes >