Too many holes in the physical address space, giving up?

[Ruslan Ermilov]

On Mon, Nov 13, 2006 at 07:48:17PM +0200, Sulev-Madis Silber wrote:
> Strange :) I managed to boot... 6.2-BETA3
> 
> If anyone cares how it looked like:
> http://viki.life.ee/~ketas/celebris-6.2-beta3.log
> 
> And sorry about wrong output, I thought you meant just a SMAP.
> 
There's no "giving up"═message in the output you quoted; this
message is displayed when there's a high number of physical
memory chunks (more than 16 for FreeBSD6/i386).  Normally, a
number of chunks would be equal to the number of non-intersecting
SMAP type=01 (RAM) chunks, which is far below this point in
your casse.  Another reason to get a high number of chunks is
from probing the memory (the first byte of each physical page
excluding kernel space is written in four different ways, and
if it doesn't read what it wrote it would result in a memory
gap and as a consequence a new element in the physical map array).
If you SOMETIMES get this message, this could be indicative of
either bad memory or bad memory-related options in the BIOS.
Boot it several times and make sure that the message never
shows up.  If later you'll get random kernel/userland traps
this could also be indicative of bad memory.  HTH.


Cheers,
-- 
Ruslan Ermilov
ru at FreeBSD.org
FreeBSD committer
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