You're right, dmidecode shows 8GB, and reports no errors against the DIMMs. I used to have 32-bit Red Hat AS 3 on HP DL585 systems with 8 GB, so I know this should work. Also note that there's a hugemem kernel for Red Hat AS 3, to be used on systems with +16 GB memory, which suggests that the smp kernel should be able to handle anything lower than that. Was the system booted with special boot options? Did you rebuild the kernel with special config options? Kind regards, Herta On 28/04/07, Nilesh Bansal <nileshbansal@xxxxxxxxx> wrote:
Looking at the dmicode output it seems that we have 8GB memory. May be I am reading the output wrong (it is attached). How much memory is supported by 32-bit RHEL3 smp kernel btw? thanks Nilesh On 4/27/07, Herta Van den Eynde <herta.vandeneynde@xxxxxxxxx> wrote: > Hi Nilesh, > > The Red Hat AS3 smp kernel which you are running is quite capable of > seeing 8 GB memory if it's there. Looks to me you only have 4. > > If dmidecode looks too intimidating, try "dmidecode -t memory | grep > Size" and add up the sizes. > > Kind regards, > > Herta > > On 27/04/07, J.Reykdal <redhat@xxxxxxxxxx> wrote: > > dmidecode should show your memory banks (search for Memory Device) > > > > J.Reykdal > > > > > > Nilesh Bansal wrote: > > > Hi all, > > > > > > We have a machine running RHEL3 AS. > > > Linux manhattan.db.toronto.edu 2.4.21-47.ELsmp #1 SMP Wed Jul 5 > > > 20:30:47 EDT 2006 i686 athlon i386 GNU/Linux > > > > > > I think that the machine has 8GB RAM, but since it is running 32-bit > > > OS only 4GB is available. Is there a way I can find out if the machine > > > has 8GB or 4GB ram present physically. > > > > > > cat /proc/meminfo shows 4GB > > > total: used: free: shared: buffers: cached: > > > Mem: 3748446208 3094016000 654430208 0 293117952 1939726336 > > > Swap: 4194881536 1651802112 2543079424 > > > MemTotal: 3660592 kB > > > MemFree: 639092 kB > > > MemShared: 0 kB > > > Buffers: 286248 kB > > > Cached: 520312 kB > > > SwapCached: 1373952 kB > > > Active: 2643408 kB > > > ActiveAnon: 2072596 kB > > > ActiveCache: 570812 kB > > > Inact_dirty: 156316 kB > > > Inact_laundry: 16244 kB > > > Inact_clean: 62824 kB > > > Inact_target: 575756 kB > > > HighTotal: 2817472 kB > > > HighFree: 625700 kB > > > LowTotal: 843120 kB > > > LowFree: 13392 kB > > > SwapTotal: 4096564 kB > > > SwapFree: 2483476 kB > > > CommitLimit: 5926860 kB > > > Committed_AS: 2819216 kB > > > HugePages_Total: 0 > > > HugePages_Free: 0 > > > Hugepagesize: 4096 kB > > > > > > > > > thanks > > > Nilesh
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