Mandrake 9.1 not seeing all my memory

[lds0062@cdc.net]

I have a Dell Precision workstation with 2 gigs or RAM and dual Xeon processors. For some reason, Mandrake 9.1 is only seeing 900 megs of the RAM. I tried upgrading the kernel and passing the kernel parameters telling it how much memory I had "mem=exactmap mem=2048m@0" with no success.

Does anyone have any ideas?

Thanks,
Fox

[dkeav]

what kernel and is the High Mem option compiled into the kernel?

[lds0062@cdc.net]

The kernel is 2.4.21. It appears that perhaps Mandrake's 9.1 kernel, even the SMP one, was not compiled with the HIGHMEM option. I am going to recompile with HIGHMEM and post my results here.

[mdwatts]

Make sure you read the HIGHMEM and related topics in /usr/src/linux/Documentation/Configure.help so you understand exactly which options need to be enabled.

[JohnT]

Here's some more food for thought..................................

http://lists.insecure.org/lists/linux-kernel/2002/Mar/3815.html

[lds0062@cdc.net]

Re-compiling the kernel with HIGHMEM enabled did fix my memory issue. Of course now I am having other issues with it not detecting my NIC card... I am going to try using the Mandrake config file in the /boot directory and modifying that and seeing if my NIC will be detected properly.

Thanks,
Fox