Incorrect memory probing?

Kris Kennaway kris at
Mon Mar 13 20:41:49 UTC 2006

On Mon, Mar 13, 2006 at 09:48:06AM -0500, Bill Moran wrote:
> Complete dmesg is attached, but notice the memory probing:
> Mar 10 14:56:40  kernel: real memory  = 5100273664 (4864 MB)
> Mar 10 14:56:40  kernel: avail memory = 4124049408 (3933 MB)
> The machine in question (a Dell Poweredge 2850) has 4G of RAM
> installed.  It looks to me as if the "avail memory" number is
> correct (after booting, other systems tools seem to show the
> correct amount)
> Is the "real memory" number expected?  If so, can someone explain
> why it appears to see almost a G more RAM than is actually in the
> machine?

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