On Fri, 6 Apr 2001, Wayne Whitney wrote:
>
> As was pointed out to me in January, another solution for i386 would be to
> fix a maximum stack size and have the mmap() allocations grow downward
> from the "top" of the stack (3GB - max stack size). I'm not sure why that
> is not currently done.
I'd be interested in the answer to that too. Typically, the memory
layout has ELF text at the lowest address, starting at 0x08048000 -
which is a curious place to put it, until you realize that if you
place the stack below it, you can use (in a typical small program)
just one page table for stack + text + data (then another for mmaps
and shared libs from 3GB down): two page tables instead of present three.
Hugh
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
This archive was generated by hypermail 2b29 : Sat Apr 07 2001 - 21:00:18 EST