From: Thomas Stewart <thomas@stewarts.org.uk>
To: Mikael Pettersson <mikpe@it.uu.se>
Cc: linux-kernel@vger.kernel.org
Subject: Re: Only 3.2G ram out of 4G seen in an i386 box
Date: Tue, 8 Aug 2006 11:01:37 +0100 [thread overview]
Message-ID: <20060808100137.GA5233@stewarts.org.uk> (raw)
In-Reply-To: <200608080913.k789D0fC019037@harpo.it.uu.se>
On Tue, Aug 08, 2006 at 11:13:00AM +0200, Mikael Pettersson wrote:
> Most likely the BIOS is reserving large parts of the [0,4GB[ range for
> PCI devices and some for itself. Please post the E820 memory map the
> kernel prints near the start of the boot sequence on your machine.
Linux version 2.6.16-2-686 (Debian 2.6.16-17) (waldi@debian.org) (gcc version 4.6BIOS-provided physical RAM map:
BIOS-e820: 0000000000000000 - 00000000000a0000 (usable)
BIOS-e820: 00000000000f0000 - 0000000000100000 (reserved)
BIOS-e820: 0000000000100000 - 00000000cfe86c00 (usable)
BIOS-e820: 00000000cfe86c00 - 00000000cfe88c00 (ACPI NVS)
BIOS-e820: 00000000cfe88c00 - 00000000cfe8ac00 (ACPI data)
BIOS-e820: 00000000cfe8ac00 - 00000000d0000000 (reserved)
BIOS-e820: 00000000e0000000 - 00000000f0000000 (reserved)
BIOS-e820: 00000000fec00000 - 00000000fed00400 (reserved)
BIOS-e820: 00000000fed20000 - 00000000feda0000 (reserved)
BIOS-e820: 00000000fee00000 - 00000000fef00000 (reserved)
BIOS-e820: 00000000ffb00000 - 0000000100000000 (reserved)
2174MB HIGHMEM available.
1152MB LOWMEM available.
Linux version 2.6.18-rc3-git3-ts1 (root@coke) (gcc version 4.0.4 20060507 (prer6BIOS-provided physical RAM map:
BIOS-e820: 0000000000000000 - 00000000000a0000 (usable)
BIOS-e820: 00000000000f0000 - 0000000000100000 (reserved)
BIOS-e820: 0000000000100000 - 00000000cfe86c00 (usable)
BIOS-e820: 00000000cfe86c00 - 00000000cfe88c00 (ACPI NVS)
BIOS-e820: 00000000cfe88c00 - 00000000cfe8ac00 (ACPI data)
BIOS-e820: 00000000cfe8ac00 - 00000000d0000000 (reserved)
BIOS-e820: 00000000e0000000 - 00000000f0000000 (reserved)
BIOS-e820: 00000000fec00000 - 00000000fed00400 (reserved)
BIOS-e820: 00000000fed20000 - 00000000feda0000 (reserved)
BIOS-e820: 00000000fee00000 - 00000000fef00000 (reserved)
BIOS-e820: 00000000ffb00000 - 0000000100000000 (reserved)
2430MB HIGHMEM available.
896MB LOWMEM available.
Linux version 2.6.18-rc2-mm1-ts1 (root@coke) (gcc version 4.0.4 20060507 (prere6BIOS-provided physical RAM map:
sanitize start
sanitize end
copy_e820_map() start: 0000000000000000 size: 00000000000a0000 end: 000000000001copy_e820_map() type is E820_RAM
copy_e820_map() start: 00000000000f0000 size: 0000000000010000 end: 000000000012copy_e820_map() start: 0000000000100000 size: 00000000cfd86c00 end: 00000000cfe1copy_e820_map() type is E820_RAM
copy_e820_map() start: 00000000cfe86c00 size: 0000000000002000 end: 00000000cfe4copy_e820_map() start: 00000000cfe88c00 size: 0000000000002000 end: 00000000cfe3copy_e820_map() start: 00000000cfe8ac00 size: 0000000000175400 end: 00000000d002copy_e820_map() start: 00000000e0000000 size: 0000000010000000 end: 00000000f002copy_e820_map() start: 00000000fec00000 size: 0000000000100400 end: 00000000fed2copy_e820_map() start: 00000000fed20000 size: 0000000000080000 end: 00000000fed2copy_e820_map() start: 00000000fee00000 size: 0000000000100000 end: 00000000fef2copy_e820_map() start: 00000000ffb00000 size: 0000000000500000 end: 000000010002 BIOS-e820: 0000000000000000 - 00000000000a0000 (usable)
BIOS-e820: 00000000000f0000 - 0000000000100000 (reserved)
BIOS-e820: 0000000000100000 - 00000000cfe86c00 (usable)
BIOS-e820: 00000000cfe86c00 - 00000000cfe88c00 (ACPI NVS)
BIOS-e820: 00000000cfe88c00 - 00000000cfe8ac00 (ACPI data)
BIOS-e820: 00000000cfe8ac00 - 00000000d0000000 (reserved)
BIOS-e820: 00000000e0000000 - 00000000f0000000 (reserved)
BIOS-e820: 00000000fec00000 - 00000000fed00400 (reserved)
BIOS-e820: 00000000fed20000 - 00000000feda0000 (reserved)
BIOS-e820: 00000000fee00000 - 00000000fef00000 (reserved)
BIOS-e820: 00000000ffb00000 - 0000000100000000 (reserved)
2430MB HIGHMEM available.
896MB LOWMEM available.
Regards
--
Tom
next prev parent reply other threads:[~2006-08-08 10:01 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-08-08 9:13 Only 3.2G ram out of 4G seen in an i386 box Mikael Pettersson
2006-08-08 10:01 ` Thomas Stewart [this message]
[not found] <fa.FhtZk3YiH9OyGCt4iXIGt+vYtos@ifi.uio.no>
2006-08-08 14:22 ` Robert Hancock
-- strict thread matches above, loose matches on Subject: below --
2006-08-08 8:24 Thomas Stewart
2006-08-08 10:15 ` Paul P Komkoff Jr
2006-08-08 19:51 ` David Schwartz
2006-08-09 6:51 ` gmu 2k6
2006-08-09 14:48 ` Joel Jaeggli
2006-08-09 14:54 ` gmu 2k6
2006-08-10 21:09 ` Simen Thoresen
2006-08-11 11:08 ` gmu 2k6
2006-08-13 10:54 ` Simen Thoresen
2006-08-10 13:04 ` Thomas Stewart
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