From: "Martin J. Bligh" <mbligh@aracnet.com>
To: William Lee Irwin III <wli@holomorphy.com>,
Ed Sweetman <ed.sweetman@wmich.edu>
Cc: Nick Piggin <piggin@cyberone.com.au>,
Donald Maner <donjr@maner.org>, Raul Miller <moth@magenta.com>,
linux-kernel@vger.kernel.org
Subject: Re: PROBLEM: Linux 2.6.0-test11 only lets me use 1GB out of 2GB ram.
Date: Wed, 10 Dec 2003 23:08:38 -0800 [thread overview]
Message-ID: <1289530000.1071126517@[10.10.2.4]> (raw)
In-Reply-To: <20031211054111.GX8039@holomorphy.com>
--William Lee Irwin III <wli@holomorphy.com> wrote (on Wednesday, December 10, 2003 21:41:11 -0800):
> 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.
You mean like we place the stack in the "ABI compliant place"?
Yeah, right ;-)
M.
next prev parent reply other threads:[~2003-12-11 7:11 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-12-11 5:06 PROBLEM: Linux 2.6.0-test11 only lets me use 1GB out of 2GB ram Donald Maner
2003-12-11 5:13 ` Nick Piggin
2003-12-11 5:33 ` Ed Sweetman
2003-12-11 5:41 ` William Lee Irwin III
2003-12-11 5:48 ` Roland Dreier
2003-12-11 5:50 ` William Lee Irwin III
2003-12-11 5:48 ` Nick Piggin
2003-12-11 6:01 ` Raul Miller
2003-12-11 6:12 ` Nick Piggin
2003-12-11 6:30 ` David Lang
2003-12-11 7:08 ` Martin J. Bligh [this message]
2003-12-11 7:19 ` William Lee Irwin III
2003-12-11 7:22 ` Martin J. Bligh
2003-12-11 13:24 ` William Lee Irwin III
2003-12-11 14:41 ` Raul Miller
2003-12-11 14:53 ` Raul Miller
2003-12-11 15:00 ` William Lee Irwin III
2003-12-11 16:17 ` moth
2003-12-11 16:35 ` William Lee Irwin III
2003-12-11 19:26 ` Where did the ELF spec go? (SCO website?) Rob Landley
2003-12-11 19:44 ` William Lee Irwin III
2003-12-11 20:25 ` Richard B. Johnson
2003-12-12 11:11 ` Johannes Stezenbach
-- strict thread matches above, loose matches on Subject: below --
2003-12-11 4:51 PROBLEM: Linux 2.6.0-test11 only lets me use 1GB out of 2GB ram Raul Miller
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