linux-kernel - memory beyond4GB invisible to the system even though CONFIG

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Message-ID: <baeb34bc0901131746n33cd536co331e32361df2fb72@mail.gmail.com>
Date:	Wed, 14 Jan 2009 01:46:33 +0000
From:	"James Kirin" <james.kirin40@...il.com>
To:	linux-kernel@...r.kernel.org
Subject: memory beyond4GB invisible to the system even though CONFIG_HIGHMEM64G=y

Hello,

I am running kernel 2.6.28 on a computer with 8GB RAM. The BIOS
detects all 8GB, yet

jk@...2:~$ free
             total       used       free     shared    buffers     cached
Mem:       3622504     799696    2822808          0      90936     369604
-/+ buffers/cache:     339156    3283348
Swap:      6867776          0    6867776

I compiled the kernel with the CONFIG_HIGHMEM64G=y and
CONFIG_RESOURCES_64BIT=y options.

I have attached the kernel config, dmesg output and /proc/cpuinfo.

How can I use all the memory on this computer?

Thank you in advance for any help,

JamesK

Download attachment "dmesg.out" of type "application/octet-stream" (55034 bytes)

Download attachment "kernel.config" of type "application/octet-stream" (46613 bytes)

Download attachment "cpuinfo" of type "application/octet-stream" (1298 bytes)