Re: Why FC3 doesn't see 4Gb of RAM?

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Andy,

 I'm a little doubt of the hugemem kernel.. I've
compiled clean kernel(downloaded directly from
www.kernel.org) with 64GB memory switch on. But the
compiled i686 kernel still can see only 3.3GB. 
 
 After I called computer vendor, it is said that the
problem is related to address spaces reserved for all
kinds of devices, especially the PCI-Express bus, VGA,
Promises SATA card.
 
--hahaha hehehe


--- Andy Pieters <mailings@xxxxxxxxxxxxxxxx> wrote:

> IIRC, you need to use the hugemem kernel!  I don't
> seem to remember there 
> being a combination of hugemen and smp, but that can
> be resolved by doing a 
> compile-your-own-kernel, which isn't so hard after
> all.
> 
> I managed to compile my own kernel after only one
> month of Linux conversion, 
> and I am sure, others on this list can give you
> usuable pointers on this.
> 
> 
> With kind regards
> 
> 
> Andy
> 
> 
> On Wednesday 24 August 2005 20:06, Alexander Dalloz
> wrote:
> > Am Mi, den 24.08.2005 schrieb Roberto Fichera um
> 18:43:
> > > I've a box with 4GB of RAM ( 4 bank of 1G DDR
> 400) running kernel
> > > 2.6.12-1.1372_FC3smp
> > > but the kernel does reports only
> > >
> > > Memory: 3316112k/3349696k available (2049k
> kernel code, 32208k
> > > reserved, 765k data, 228k init, 2432132k
> highmem)
> > >
> > > it's normal or I lost ~700Mb somewhere ;-)!
> > >
> > > Roberto Fichera.
> >
> > That is a 32bit world limitation. The amount of
> RAM you don't see/have
> > is consumed by address space.
> >
> > Alexander
> 
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