On Sun, Sep 12, 2010 at 12:59 AM, erik quanstrom <quans...@quanstro.net> wrote: >> -#define USTKTOP (0x4000000) /* byte just beyond >> user stack */ >> +#define USTKTOP (0x8000000) /* byte just beyond >> user stack */ > > shouldn't you add a 0 to that? what's wrong with giving a process 2gb > of address space? fundamental 9vx limits?
there might not be 2gb of contiguous address space to have. this is running inside a unix process. another reason for the low size was so that it was easier to keep multiple processes mapped at the same time, to reduce context switch latency. russ
