Re: I want all my 4GB!!!
On Wed, Jul 22, 2009 at 12:23:13PM +0400, James Brown wrote:
> ~$ dmesg | grep BIOS
> [ 0.000000] BIOS-provided physical RAM map:
> [ 0.000000] BIOS-e820: 0000000000000000 - 000000000009f800 (usable)
That is 653312 bytes = 638 KB
> [ 0.000000] BIOS-e820: 000000000009f800 - 00000000000a0000 (reserved)
> [ 0.000000] BIOS-e820: 00000000000dc000 - 0000000000100000 (reserved)
> [ 0.000000] BIOS-e820: 0000000000100000 - 00000000bf680000 (usable)
That is 3211231232 bytes = 3062 MB = 2.99 GB
> [ 0.000000] BIOS-e820: 00000000bf680000 - 00000000bf700000 (ACPI NVS)
> [ 0.000000] BIOS-e820: 00000000bf700000 - 00000000c0000000 (reserved)
> [ 0.000000] BIOS-e820: 00000000e0000000 - 00000000f0000000 (reserved)
That's 268435456 bytes = 256 MB, which is not usable.
> [ 0.000000] BIOS-e820: 00000000fec00000 - 00000000fec10000 (reserved)
> [ 0.000000] BIOS-e820: 00000000fed00000 - 00000000fed00400 (reserved)
> [ 0.000000] BIOS-e820: 00000000fed14000 - 00000000fed1a000 (reserved)
> [ 0.000000] BIOS-e820: 00000000fed1c000 - 00000000fed90000 (reserved)
> [ 0.000000] BIOS-e820: 00000000fee00000 - 00000000fee01000 (reserved)
> [ 0.000000] BIOS-e820: 00000000ff000000 - 0000000100000000 (reserved)
> [ 0.000000] ACPI: BIOS bug: multiple APIC/MADT found, using 0
> [ 0.000000] early res: 0 [0-fff] BIOS data page
> [ 0.000000] early res: 4 [9f800-fffff] BIOS reserved
> [ 0.004000] Calgary: detecting Calgary via BIOS EBDA area
> [ 0.264998] ACPI: BIOS _OSI(Linux) query ignored via DMI
So the BIOS atleast tells you you have 3 GB of usable memory.
There might be some option that changes it so that more is
available, and that it's now using some compatibility option
for things that do not support more than 32 bit. I suggest
you look for options in your bios that might be related to that.
Kurt
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