On Fri, Aug 15, 2008 at 08:48:19AM -0700, Dave Hansen wrote: > My guess would be that Michael knew that his 32-bit MIPS platform only > ever has 2GB of memory. that's the point, which isn't quite correct. It's possible for a 32bit MIPS system to address 4GB of memory (minus IO). That's one case where the 31bits don't fit, the other case is a 64bit CPU running a 32 bit kernel (CONFIG_64BIT selects whether it's a 32bit or 64bit kernel). I'm not whether it's worth to cover both cases, but it's more restrictive than it's without that change. Thomas. -- Crap can work. Given enough thrust pigs will fly, but it's not necessary a good idea. [ RFC1925, 2.3 ]
