Re: ACPI stops working after memory upgrade vpr Matrix 175b4

[Bruno Ducrot <ducrot-kk6yZipjEM5g9hUCZPvPmw@public.gmane.org>]

On Wed, Feb 04, 2004 at 07:39:41AM -0800, Randy.Dunlap wrote:
> > My ACPI stopped working when I added an additional 256mb RAM to my vpr 
> > Matricx 174b4 laptop. It has 256mb already, I added 256mb to make it 
> > 512mb and I got a bunch of AE_NO_MEMORY errors in the ACPI code.
> > 
> > I took the extra RAM out, and the ACPI support works.
> > 
> > I am using kernel 2.6.1 with acpi patches. I had the same problem on 
> > 2.6.0. On 2.4.20 with acpi patches the machine would not even boot with 
> > the extra memory.
> > 
> > I have a custom DSDT file that I fixed errors in. When it was working on 
> > 2.4.20 It looked like all the ACPI features were active and functional.
> 
> < Recompile your DSDT. Since the amount of RAM changed and you're probably
> < using old DSDT containing wrong addresses, no wonder you're hitting
> < errors.
> 
> Is this correct?  If a user adds or removes memory, then the
> DSDT must be rebuilt?  Sheesh!!  That's bad if this is correct.
> 

Most DSDT are actually build on POST stage.

-- 
Bruno Ducrot

--  Which is worse:  ignorance or apathy?
--  Don't know.  Don't care.


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