Mailinglist Archive: opensuse (3513 mails)

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Re: [opensuse] Why does 10.3 x86_64 only see 3gig of memory?
  • From: "David C. Rankin" <drankinatty@xxxxxxxxxxxxxxxxxx>
  • Date: Thu, 08 Jan 2009 21:34:07 -0600
  • Message-id: <4966C5AF.2050601@xxxxxxxxxxxxxxxxxx>
Patrick Shanahan wrote:
* David C. Rankin <drankinatty@xxxxxxxxxxxxxxxxxx> [01-08-09 21:30]:

I'm totally confused as to why my 10.3 x86_64 box is only using 3 out
of 4 gig
of memory. It was running 2 gig and I added 2 gig today. All four are good
sticks of OCZ platinum DDR400 on the Gigabyte 8KE S2865 board with an Opteron
180 processor. I have other i586 10.3 boxes running and recognizing 4 gig
the big-smp kernel, but I was under the impression that the x86_64 default
kernel could address up to 64 gig of memory.

Socket Designation: Socket 939

I have this socket and had to change the bios to not reserve above
3.2g for system processes (if memory serves).

anyway, it is a bios issue.

21:35 wahoo:~ # free
total used free shared buffers
Mem: 4049792 3737448 312344 0 88264 1166696


You nailed that one. It took two tries. One, setting both hardware and
software memory hole remapping to enabled got all the memory back and then two,
disabling software memory hole remapping because it was unnecessary left me in
a good configuration:

21:30 nirvana:~> free -tm
total used free shared buffers cached
Mem: 3706 440 3266 0 12 217
-/+ buffers/cache: 209 3496
Swap: 2055 0 2055
Total: 5761 440 5321

You would think they could come up with better names for this besides
"software memory hole remapping" and "hardware memory hole remapping". Live and
learn. Thanks.

David C. Rankin, J.D.,P.E.
Rankin Law Firm, PLLC
510 Ochiltree Street
Nacogdoches, Texas 75961
Telephone: (936) 715-9333
Facsimile: (936) 715-9339
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