memory problem with Fedora 7
 

I installed Fedora 7 in my PC with intel CPU "core 2 duo E6600", motherboard "Gigabyte GA-965P-DS3P",
and one 2GB DDR2 memory.

And then I added one more 2GB memory (the same memory), but Fedora 7 did not boot.
So I tried to install Fedora 7 in my PC with two 2GB memories from the beginning.
But installation process stoped and it displayed the following:

Code: Bad RIP value
RIP [<0000000000000005>]
RSP <ffff81011fcbbf90>
CR2: 0000000000000005
Kernel panic - not syncing: Aiee, killing interrupt handler!

What do they mean?
I don't understand them.
What's the problem?
As a test, I installed Windows in my PC with two 2GB memories and Windows recognized 4GB memory well.
I also ran memtest for a day, and memories had no problem.

Please give me good advices.

Thanks.

If F7 is 32-bit version the install and use the PAE kernel first: yum install kernel-PAE

I used 64-bit F7 from the beginning.

Same Problem
 

I have the same motherboard, same processor and had the SAME thing happen when I went from 2 GB to 4 GB of RAM. Here is how I resolved the install. I used the boot option mem=2048M, which for some reason fixes the problem (the kernel panic happens immediately after decompressing initrd.img).

By the way, the problem happens on several distributions of Linux (Gentoo and openSUSE, which happens to install, but in order to boot one must set mem=4096M), but all of them only the 64 bit version. The mem=xxxx fixed my problem. By typing mem=4096M, you get a different kernel panic error.

Let me know if this helps. I can't find useful information online on this topic. I noticed a lot of activity in Ubuntu forums with similar 4 GB memory problems and ASUS motherboards.

I should also note that I have the Rev. 1.3 of the motherboard with BIOS version F10 installed. Fedora 7 32 bit installed without adding any extra boot options.

Following your advice, I installed F7 in my PC with 4 GB memory.
It's great advice.

But it's strange why the PC recognize 3.6 GB memory instead of 4 GB.

Many thanks.