memory beyond4GB invisible to the system even though CONFIG_HIGHMEM64G=y

[James Kirin]

Hello,

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

jk@as12:~$ 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

Attachment: dmesg.out
Description: Binary data

Attachment: kernel.config
Description: Binary data

Attachment: cpuinfo
Description: Binary data