[CentOS] max RAM support on CENTOS 4.3 (32 bits) ???

[Antonio da Silva Martins Junior]

----- "William Warren" <hescominsoon at emmanuelcomputerconsulting.com> wrote:
> 4 gigs unless you use the hugemem kernel and the cpu has PAE enabled. 
> H

Hi, 

  jumping in this thread, I have a glitch with CentOS 4.4 and on a 4Gb system.

  it's a HP Proliant DL-380G4, take a look:

[shadow at Barcelona ~]$ uname -a
Linux Barcelona.uem.br 2.6.9-42.0.10.ELsmp #1 SMP Tue Feb 27 09:40:21 EST 
2007 x86_64 x86_64 x86_64 GNU/Linux
[shadow at Barcelona ~]$ free
             total       used       free     shared    buffers     cached
Mem:       3980132    3520928     459204          0     349764     670916
-/+ buffers/cache:    2500248    1479884
Swap:      8385920        160    8385760
[shadow at Barcelona ~]$ 

  and on a SuperMicro mobo (i586) with 4Gb we have:

[shadow at Sakhir ~]$ uname -a
Linux Sakhir.uem.br 2.6.9-42.0.10.ELsmp #1 SMP Tue Feb 27 10:11:19 EST 
2007 i686 i686 i386 GNU/Linux
[shadow at Sakhir ~]$ free
             total       used       free     shared    buffers     cached
Mem:       4152000    4088104      63896          0     262452    1540648
-/+ buffers/cache:    2285004    1866996
Swap:      2104504        132    2104372


  Well, a x86_64 install can't find the 4Gb and a i586 install can. Ok, it's on 
different hardware, but it shows that CentOS 4.4 can address the 4Gb withou problem.
And we had SLES9 on the same DL-380 hardware and it shows the 4Gb RAM... 

  Somebody can point me a direction to my lost 150Mb ??

  Thanks,

        Antonio.

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