kernel not seeing all the RAM in a PE2900

[Jeff D]

Greg Dickie wrote:
> Hi,
>
>   This might be a FAQ but I've never seen it before. In our Woodcrest
> PE2900s with 4GB of RAM the kernel (2.6.17) is only reporting 3.3GB of
> physical RAM. Anyone seen that or know how to fix it?
>
> Thanks alot,
> GReg
>
>
>   
depending on what dist you are running or if you compiled your kernel 
yourself, you will need to enable support for high memory , see: 
CONFIG_HIGHMEM64G

for example in debian you can install the 686 version of the kernel 
which has support for large ammounts of memory.  i beleive the same is 
true for redhat/fedora as well.