Mailinglist Archive: opensuse (3513 mails)

< Previous Next >
[opensuse] Why does 10.3 x86_64 only see 3gig of memory?
  • From: "David C. Rankin" <drankinatty@xxxxxxxxxxxxxxxxxx>
  • Date: Thu, 08 Jan 2009 20:25:12 -0600
  • Message-id: <4966B588.8090905@xxxxxxxxxxxxxxxxxx>
Listmates,

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 with
the big-smp kernel, but I was under the impression that the x86_64 default
kernel could address up to 64 gig of memory.

I have the latest kernel installed:

20:23 nirvana:~> uname -a
Linux nirvana 2.6.22.19-0.1-default #1 SMP 2008-10-14 22:17:43 +0200 x86_64
x86_64 x86_64 GNU/Linux

dmidecode shows the processor is PAE enabled and all 4 sticks of ram
are there
and recognized:

Handle 0x0004, DMI type 4, 32 bytes
Processor Information
Socket Designation: Socket 939
Type: Central Processor
Family: Athlon 64
Manufacturer: AMD
ID: 32 0F 02 00 FF FB 8B 17
Signature: Family 15, Model 35, Stepping 2
Flags:
FPU (Floating-point unit on-chip)
VME (Virtual mode extension)
DE (Debugging extension)
PSE (Page size extension)
TSC (Time stamp counter)
MSR (Model specific registers)
PAE (Physical address extension)
<snip> (same on the other core)

Handle 0x0006, DMI type 5, 24 bytes
Memory Controller Information
Error Detecting Method: 64-bit ECC
Error Correcting Capabilities:
None
Supported Interleave: One-way Interleave
Current Interleave: One-way Interleave
Maximum Memory Module Size: 4096 MB
Maximum Total Memory Size: 16384 MB
Supported Speeds:
70 ns
60 ns
50 ns
Supported Memory Types:
Standard
DIMM
Memory Module Voltage: 2.9 V
Associated Memory Slots: 4
0x0007
0x0008
0x0009
0x000A
Enabled Error Correcting Capabilities: None

Handle 0x0007, DMI type 6, 12 bytes
Memory Module Information
Socket Designation: A0
Bank Connections: 0 1
Current Speed: 5 ns
Type: Unknown EDO
Installed Size: 1024 MB (Double-bank Connection)
Enabled Size: 1024 MB (Double-bank Connection)
Error Status: OK

Handle 0x0008, DMI type 6, 12 bytes
Memory Module Information
Socket Designation: A1
Bank Connections: 2 3
Current Speed: 5 ns
Type: Unknown EDO
Installed Size: 1024 MB (Double-bank Connection)
Enabled Size: 1024 MB (Double-bank Connection)
Error Status: OK

Handle 0x0009, DMI type 6, 12 bytes
Memory Module Information
Socket Designation: A2
Bank Connections: 4 5
Current Speed: 5 ns
Type: Unknown EDO
Installed Size: 1024 MB (Double-bank Connection)
Enabled Size: 1024 MB (Double-bank Connection)
Error Status: OK

Handle 0x000A, DMI type 6, 12 bytes
Memory Module Information
Socket Designation: A3
Bank Connections: 6 7
Current Speed: 5 ns
Type: Unknown EDO
Installed Size: 1024 MB (Double-bank Connection)
Enabled Size: 1024 MB (Double-bank Connection)
Error Status: OK

But still 10.3 only wants to use 3 gig:

20:18 nirvana:~> free -tm
total used free shared buffers cached
Mem: 3276 1453 1822 0 51 899
-/+ buffers/cache: 502 2773
Swap: 2055 0 2055
Total: 5331 1453 3877

20:20 nirvana:~> cat /proc/meminfo
MemTotal: 3354664 kB
MemFree: 1864848 kB
Buffers: 53148 kB
Cached: 920880 kB
SwapCached: 0 kB
Active: 740912 kB
Inactive: 547052 kB
SwapTotal: 2104472 kB
SwapFree: 2104472 kB
Dirty: 44 kB
Writeback: 0 kB
AnonPages: 314084 kB
Mapped: 98412 kB
Slab: 120252 kB
SReclaimable: 96900 kB
SUnreclaim: 23352 kB
PageTables: 19208 kB
NFS_Unstable: 0 kB
Bounce: 0 kB
CommitLimit: 3781804 kB
Committed_AS: 752300 kB
VmallocTotal: 34359738367 kB
VmallocUsed: 69720 kB
VmallocChunk: 34359668219 kB
HugePages_Total: 0
HugePages_Free: 0
HugePages_Rsvd: 0
Hugepagesize: 2048 kB

So kernel and hardware gurus, how do I get my memory back on 10.3?
Surely
there is some switch or something that will let me use all of it isn't there?
Thanks in advance for any help.


--
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
www.rankinlawfirm.com
--
To unsubscribe, e-mail: opensuse+unsubscribe@xxxxxxxxxxxx
For additional commands, e-mail: opensuse+help@xxxxxxxxxxxx

< Previous Next >