From: William Lee Irwin III <wli@holomorphy.com>
To: Nagy Tibor <nagyt@otpbank.hu>
Cc: linux-kernel@vger.kernel.org
Subject: Re: HIGHMEM
Date: Tue, 15 Apr 2003 08:14:39 -0700 [thread overview]
Message-ID: <20030415151439.GC12487@holomorphy.com> (raw)
In-Reply-To: <3E9C19A2.1040206@dell633.otpefo.com>
On Tue, Apr 15, 2003 at 04:39:30PM +0200, Nagy Tibor wrote:
> <6>BIOS-provided physical RAM map:
> <4> BIOS-e820: 0000000000000000 - 00000000000a0000 (usable)
> <4> BIOS-e820: 0000000000100000 - 00000000fbffe000 (usable)
> <4> BIOS-e820: 00000000fbffe000 - 00000000fc000000 (reserved)
> <4> BIOS-e820: 00000000fec00000 - 00000000fec10000 (reserved)
> <4> BIOS-e820: 00000000fee00000 - 00000000fee10000 (reserved)
> <4> BIOS-e820: 00000000fff80000 - 0000000100000000 (reserved)
> <5>3135MB HIGHMEM available.
> <5>896MB LOWMEM available.
[...]
> <6>BIOS-provided physical RAM map:
> <4> BIOS-e820: 0000000000000000 - 00000000000a0000 (usable)
> <4> BIOS-e820: 0000000000100000 - 00000000dfff0000 (usable)
> <4> BIOS-e820: 00000000dfff0000 - 00000000dfffec00 (ACPI data)
> <4> BIOS-e820: 00000000dfffec00 - 00000000dffff000 (reserved)
> <4> BIOS-e820: 00000000fec00000 - 00000000fec10000 (reserved)
> <4> BIOS-e820: 00000000fee00000 - 00000000fee10000 (reserved)
> <4> BIOS-e820: 00000000fff80000 - 0000000100000000 (reserved)
> <5>2687MB HIGHMEM available.
> <5>896MB LOWMEM available.
> There is a big hole between 00000000dffff000 and 00000000fec00000, which
> is not used on the new machine. What can I do?
Presumably that was lost to ACPI. The hole between 0xdffff000 and
0xfec00000 appears to not be covered by the e820.
Try turning ACPI off in your .config since there's something that
looks relevant to it different between 2.4 and 2.5. You also might
want to follow up with .config's just in case. I'll look at 2.5's e820
stuff, but no promises.
-- wli
next prev parent reply other threads:[~2003-04-15 15:03 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-04-15 14:39 HIGHMEM Nagy Tibor
2003-04-15 15:14 ` William Lee Irwin III [this message]
2003-04-15 16:03 ` HIGHMEM Samuel Flory
-- strict thread matches above, loose matches on Subject: below --
2004-02-13 12:20 HIGHMEM Nagy Tibor
2004-02-13 13:12 ` HIGHMEM Sean Neakums
2004-02-13 16:05 ` HIGHMEM Martin J. Bligh
2004-02-13 22:09 ` HIGHMEM Matt Domsch
2004-02-13 22:18 ` HIGHMEM Martin J. Bligh
2004-02-13 17:08 ` HIGHMEM david parsons
2004-02-13 13:36 ` HIGHMEM Matt Domsch
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