Re: [gentoo-server] Opteron; BIOS ack's all 4GB RAM, but OS does not

[Eric Thibodeau]

Hi Chrisitian,

	You might want to take a look at the Linux kernel amilling list. One of my 
friends had issues with his dual Xeon and 4Gigs of RAM. In his case, Windows 
would claim to see the 4Gigs but would actually crassh when he actually came 
to use more than 3...sounds fammiliar?
	
	In Linux, he'd get a kernel panic on boot (2.6.x kernels)...after over 6 
months of poking at forums and the LKML, his bug was officially received as 
valid from the kernel gurus and eventually fixed....

hope this helps a little in your investigation...

Le 14 Mai 2005 10:54, Christian Parpart a écrit :
> Hi all,
>
> I finally got it; my Operaton workstation with 2x Opteron248 CPUs and 4GB
RAM 
> is arrived. However, the BIOS says that I really have 4GB RAM inside, that I
> have, but the Linux is just telling me something about 3GB. `free -mt` as
> well as `kinfocenter` are telling this. Although, I (unfortunately) *had* to
> install windows2003 on a partition, too (for working for my company), and
> there it is also just telling me something about 3 (instead of 4) GB RAM.
>
> Did I miss something?
>
> mem=4096M in boot commandline didn't help there much.
>
> I'm having a TYAN board, with PhoenixBIOS on it. The handbook is far off
being 
> a good handbox, so, did I miss something I should configure/reconfigure in
> the BIOS then, so, that the OS will use all RAM?
>
> I found something about "Memory hole" and "1024MB". maybe this is my missing
> 1GB? But I can't really disable it, although, playing around w/ this value
> didn't change anything (yet)...
>
> Thanks in advance,
> Christian Parpart.
>

-- 
Eric Thibodeau

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