Additional Memory not being show in OEL UEK
I recently purchased an additional 8G of memory increasing my system from 16GB to 24GB . The Bios sees it fine , however free does not show it. Here is the pertinent information.
uname -a
3.8.13-26.1.1.el6uek.x86_64 #2 SMP Thu Feb 13 19:42:43 PST 2014 x86_64 x86_64 x86_64 GNU/Linux
free
free
total used free shared buffers cached
Mem: 16392848 13979312 2413536 17848 9176 94976
-/+ buffers/cache: 13875160 2517688
Swap: 8249340 324132 7925208
[root@waco shm]#
cat /proc/meminfo
MemTotal: 16392848 kB
MemFree: 2407452 kB
Buffers: 9260 kB
Cached: 95092 kB
SwapCached: 35832 kB
Active: 467052 kB
Inactive: 60944 kB
Active(anon): 435732 kB
Inactive(anon): 5796 kB
Active(file): 31320 kB
Inactive(file): 55148 kB
Unevictable: 192 kB
Mlocked: 192 kB
SwapTotal: 8249340 kB
SwapFree: 7925208 kB
Dirty: 0 kB
Writeback: 0 kB
AnonPages: 420320 kB
Mapped: 13044804 kB
Shmem: 17848 kB
Slab: 236172 kB
SReclaimable: 33880 kB
SUnreclaim: 202292 kB
KernelStack: 4312 kB
PageTables: 84948 kB
NFS_Unstable: 0 kB
Bounce: 0 kB
WritebackTmp: 0 kB
CommitLimit: 16445764 kB
Committed_AS: 15072612 kB
VmallocTotal: 34359738367 kB
VmallocUsed: 466924 kB
VmallocChunk: 34359163728 kB
HardwareCorrupted: 0 kB
HugePages_Total: 0
HugePages_Free: 0
HugePages_Rsvd: 0
HugePages_Surp: 0
Hugepagesize: 2048 kB
DirectMap4k: 16380 kB
DirectMap2M: 3104768 kB
DirectMap1G: 13631488 kB
dmiedcode
dmidecode --type memory
# dmidecode 2.12
# SMBIOS entry point at 0x000f04c0
SMBIOS 2.7 present.
Handle 0x0008, 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: 2048 MB
Maximum Total Memory Size: 8192 MB
Supported Speeds:
70 ns
60 ns
Supported Memory Types:
DIMM
SDRAM
Memory Module Voltage: 3.3 V
Associated Memory Slots: 4
0x0009
0x000A
0x000B
0x000C
Enabled Error Correcting Capabilities:
None
Handle 0x0009, DMI type 6, 12 bytes
Memory Module Information
Socket Designation: DIMM0
Bank Connections: 0 1
Current Speed: 60 ns
Type: DIMM SDRAM
Installed Size: 536870912 MB (Single-bank Connection)
Enabled Size: 536870912 MB (Single-bank Connection)
Error Status: OK
Handle 0x000A, DMI type 6, 12 bytes
Memory Module Information
Socket Designation: DIMM1
Bank Connections: 2 3
Current Speed: 60 ns
Type: DIMM SDRAM
Installed Size: 536870912 MB (Single-bank Connection)
Enabled Size: 536870912 MB (Single-bank Connection)
Error Status: OK
Handle 0x000B, DMI type 6, 12 bytes
Memory Module Information
Socket Designation: DIMM2
Bank Connections: 4 5
Current Speed: 60 ns
Type: DIMM SDRAM
Installed Size: 536870912 MB (Single-bank Connection)
Enabled Size: 536870912 MB (Single-bank Connection)
Error Status: OK
Handle 0x000C, DMI type 6, 12 bytes
Memory Module Information
Socket Designation: DIMM3
Bank Connections: 6 7
Current Speed: 60 ns
Type: DIMM SDRAM
Installed Size: 536870912 MB (Single-bank Connection)
Enabled Size: 536870912 MB (Single-bank Connection)
Error Status: OK
Handle 0x002C, DMI type 16, 23 bytes
Physical Memory Array
Location: System Board Or Motherboard
Use: System Memory
Error Correction Type: None
Maximum Capacity: 32 GB
Error Information Handle: Not Provided
Number Of Devices: 4
Handle 0x002E, DMI type 17, 34 bytes
Memory Device
Array Handle: 0x002C
Error Information Handle: Not Provided
Total Width: 64 bits
Data Width: 64 bits
Size: 8192 MB
Form Factor: DIMM
Set: None
Locator: Node0_Dimm0
Bank Locator: Node0_Bank0
Type: DDR3
Type Detail: Synchronous Unbuffered (Unregistered)
Speed: 800 MHz
Manufacturer: Undefined
Serial Number: 00000000
Asset Tag: Dimm0_AssetTag
Part Number: 1600 CL10 Ser
Rank: 2
Configured Clock Speed: 800 MHz
Handle 0x0030, DMI type 17, 34 bytes
Memory Device
Array Handle: 0x002C
Error Information Handle: Not Provided
Total Width: Unknown
Data Width: 64 bits
Size: No Module Installed
Form Factor: DIMM
Set: None
Locator: Node0_Dimm1
Bank Locator: Node0_Bank0
Type: Unknown
Type Detail: Synchronous
Speed: Unknown
Manufacturer: Dimm1_Manufacturer
Serial Number: Dimm1_SerNum
Asset Tag: Dimm1_AssetTag
Part Number: Dimm1_PartNum
Rank: Unknown
Configured Clock Speed: Unknown
Handle 0x0032, DMI type 17, 34 bytes
Memory Device
Array Handle: 0x002C
Error Information Handle: Not Provided
Total Width: 64 bits
Data Width: 64 bits
Size: 8192 MB
Form Factor: DIMM
Set: None
Locator: Node0_Dimm2
Bank Locator: Node0_Bank0
Type: DDR3
Type Detail: Synchronous Unbuffered (Unregistered)
Speed: 800 MHz
Manufacturer: Undefined
Serial Number: 00000000
Asset Tag: Dimm2_AssetTag
Part Number: PSD38G16002
Rank: 2
Configured Clock Speed: 800 MHz
Handle 0x0034, DMI type 17, 34 bytes
Memory Device
Array Handle: 0x002C
Error Information Handle: Not Provided
Total Width: 64 bits
Data Width: 64 bits
Size: 8192 MB
Form Factor: DIMM
Set: None
Locator: Node0_Dimm3
Bank Locator: Node0_Bank0
Type: DDR3
Type Detail: Synchronous Unbuffered (Unregistered)
Speed: 800 MHz
Manufacturer: Undefined
Serial Number: 00000000
Asset Tag: Dimm3_AssetTag
Part Number: PSD38G16002
Rank: 2
Configured Clock Speed: 800 MHz
Please show the content of:
/proc/cmdline
/var/log/dmesg
so we can tell what the kernel is seeing at boot time.
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