4gig on 32bit linux

Corey Edwards tensai at zmonkey.org
Sun Apr 8 23:10:54 MDT 2007


On Sun, 2007-04-08 at 22:01 -0600, Brian Hawkins wrote:
> Anyone have any success with running 4gigs of memory on a 32bit version 
> of linux?  I'm running 64bit linux and I want to reinstall to 32 bit 
> because of some compatibility issues.  My system has 4gigs of memory 
> that I would like to not give up.  Does anyone have any experience with 
> this?

Yes. I have a pair of servers with 4G of RAM and both are running just
fine with a 32bit kernel. My kernel config settings are thus:

        # CONFIG_NOHIGHMEM is not set
        # CONFIG_HIGHMEM4G is not set
        CONFIG_HIGHMEM64G=y
        CONFIG_HIGHMEM=y

        # free
                total       used     free  shared  buffers   cached
        Mem:  4152908    4026344   126564       0   356584  2681860
        -/+ buffers/cache: 98790  3165008
        Swap: 2000084       2604  1997480
        
Now, if only I could fix LVM on there, I'd be sittin' in butter...

Corey





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