memory problem with 2.4.21 SMP on Dell Dimension 8300 (i875p chipset)

From: Greg Norris (
Date: Sun Jun 15 2003 - 21:10:59 EST

After running a SMP 2.4.21 kernel on my Dell Dimension 8300, the BIOS
thinks that the amount of memory has changed. When the box is
rebooted, I get the following message at the end of BIOS

   The amount of system memory has changed.
   Alert! OS Install Mode enabled. Amount of available memory limited to 256MB.

At this point the bootup hangs, waiting for someone to press F1
(resume) or F2 (setup). Any idea what's triggering this behaviour, and
what I can do to squash it? This issue doesn't occur when using a UP
kernel (basically identical, except for SMP/ACPI being disabled).

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