Re: Running > 4GB of Memory

[Mark Hansen <mark@javector.com>]

Thanks.  Here are a couple follow-up question then.

(1) If I start 2 separate VMWare processes, they should each be able to 
grab 3GB of memory (more or less) - is that right?

(2) My Dell box has 2 Xeon processors and I'm running the SMP kernel. 
Even without CONFIG_HIGHMEM64G, should the 2 processor "split" access to 
the memory, so that I can run 2 processes - one on each processor - that 
have access to 3GB (more or less) each?

-- Mark

Aurelien Ricard wrote:
> Ron Johnson wrote:
>
> > On Thu, 2005-10-20 at 22:46 -0400, Mark Hansen wrote:
> >  
> >
> > > I'm running debian on a dell poweredge 1750 and just intalled 6GB of 
> > > memory.  Its a dual-processor machine and I use it with VMWare to run 
> > > multiple virtual machines.
> > >
> > > Problem - I can only "see" 4GB of memory.  Here is the output from
> > > "free -m":
> > >
> > > mhansen@debian01:~$ free -m
> > >              total       used       free     shared    buffers     
> > > cached
> > > Mem:          3995       3908         86          0        145       
> > > 2668
> > > -/+ buffers/cache:       1094       2901
> > > Swap:         2047          0       2047
> > >
> > >
> > > What do I need to do in order to make the other 2GB of memory available?
> > >   
> >
> >
> > Build your own kernel, setting the appropriate HIGHMEM option.
> >
> >  $ grep HIGHMEM /boot/config-2.6.12-1-386
> >  CONFIG_NOHIGHMEM=y
> >  # CONFIG_HIGHMEM4G is not set
> >  # CONFIG_HIGHMEM64G is not set
> >
> >  
> Ron's right, you need to rebuild your kernel with high memory support 
> enabled and everything gonna be OK with you 6GB