Messages in this thread | | | Date | Wed, 10 Dec 2003 21:41:11 -0800 | From | William Lee Irwin III <> | Subject | Re: PROBLEM: Linux 2.6.0-test11 only lets me use 1GB out of 2GB ram. |
| |
On Thu, Dec 11, 2003 at 12:33:39AM -0500, Ed Sweetman wrote: > I thought highmem wasn't necesarily needed for memory <=2GB? Highmem > incurs some performance hits doesn't it and so the urge to move to it > with only 2GB is not very attractive. Anyways i'm just interested in if > that's the case or not since 2GB is easy to get to these days and i had > heard that highmem could be avoided passed the 1GB barrier.
You're probably thinking of 2:2 split patches.
2:2 splits are at least technically ABI violations, which is probably why this isn't merged etc. Applications sensitive to it are uncommon.
Yes, the SVR4 i386 ELF/ABI spec literally mandates 0xC0000000 as the top of the process address space.
-- wli - 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/
| |