How do you determine the amount of system memory?

[Michael ODonnell]

> /proc/meminfo is incorrect.  I'm trying to find a way to
> determine whether the amount reported is correct

Ick.  You might be able to write (or find) something that'll use
DMI data to compute a total from everything currently marked as
being a Memory Device (type 17).  The dmidecode tool can dump
it raw hex or in translated form, thus:

	.
	.
	.
Handle 0x0041
        DMI type 17, 27 bytes.
        Memory Device
                Array Handle: 0x003F
                Error Information Handle: Not Provided
                Total Width: 72 bits
                Data Width: 64 bits
                Size: 2048 MB
                Form Factor: <OUT OF SPEC>
                Set: 1
                Locator: DIMM01
                Bank Locator: Not Specified
                Type: <OUT OF SPEC>
                Type Detail: Synchronous
                Speed: 667 MHz (1.5 ns)
                Manufacturer: JEDEC ID:2C 0C 07 39 D9 12 97 C7
                Serial Number: C79712D9
                Asset Tag: Not Specified
                Part Number: 36HTF25672F667B3E3
Handle 0x0042
        DMI type 17, 27 bytes.
        Memory Device
                Array Handle: 0x003F
                Error Information Handle: Not Provided
                Total Width: Unknown
                Data Width: Unknown
                Size: No Module Installed
                Form Factor: <OUT OF SPEC>
                Set: None
                Locator: DIMM02
                Bank Locator: Not Specified
                Type: <OUT OF SPEC>
                Type Detail: Synchronous
                Speed: Unknown
                Manufacturer: JEDEC ID:
                Serial Number:  
                Asset Tag: Not Specified
                Part Number:  
Handle 0x0043
        DMI type 17, 27 bytes.
        Memory Device
                Array Handle: 0x003F
                Error Information Handle: Not Provided
                Total Width: 72 bits
                Data Width: 64 bits
                Size: 2048 MB