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Re: IOMMU option in bios



On Fri, 19 Mar 2010 01:02:50 +0100, Clive McBarton wrote:

> Camaleón wrote:
>> Not sure if this has something to do with some BIOS option that allow
>> "memmory remapping" :-?
> 
> There's no such option. Not in any BIOS I've ever seen.

That could be the problem.
 
>> There is an Ubuntu forum thread that may help a bit
> 
> It doesn't. It's a long thread with people talking about the problem,
> suggesting a great number of "solutions" (some of them harmful) without
> solving the problem.

Didn' you try some of the tips? They only require passing some options to 
the kernel at boot time and there is nothing harmful in doing that :-?
 
> On the other hand, nothing else I've seen so far solves the problem
> either. Most people ignore it, since it may be just an annoying message,
> the loss of a tiny fraction of RAM, and possibly your RAM becoming
> slightly slower.

I passed the link not because it provided a "magic solution" but for you 
get an idea of the origin of that message and how to bypass it ;-)
 
> Are there any users of 64bit Debian with 4GB or more who are not
> affected? 

Sure.

I am not getting that message in dmesg (running lenny amd64, 8 GiB.) 
*but* my BIOS has "memory reclaiming" enabled.

Greetings,

-- 
Camaleón


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