On Fri, 07 Sep 2001 03:57:15 PM, revol@xxxxxxx wrote: >The biggest problem IMO is not the vm structures overflowing, but the fact >that >_all_ the physical memory is mapped into a portion of the virtual space of >each >team (in the kernel part, which is limited to 2G). I didn't know this. But your are correct, this may be the main problem. I wouldn't have done it that way, >This trick is used in BeOs (and also in AtheOS) to ease writing some kernel >routines. Bad. If we change it, how much existing code will break? >So what do you think will happen if you have 4G of RAM ??? >it will just try to map your 4G to the 2G space it is allowed to use... You are correct. http://uptowncity.com/comedy/Great_Quotes/short.htm "640K ought to be enough for anybody." Bill Gates, 1981 "DOS addresses only 1 Megabyte of RAM because we cannot imagine any applications needing more." Microsoft, 1980, on the development of DOS. "Windows NT addresses 2 Gigabytes of RAM which is more than any application will ever need." Microsoft, 1992, on the development of Windows NT. regards Marcus