memory scrubbing

marty goodoldmarty at gmail.com
Wed Jan 30 06:18:01 PST 2008


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> If you're running HLFS, your kernel is not moving X around. I thought 
> all these programs were to be hidden where nobody would expect them to 
> be; -pie or -pic and all that agony one goes through to build HLFS. Back 
> to the drawing board :-P.
> 
You are very confused. -pic and -pie are totally irrelevant to this issue.

After poweroff, nothing in the computer is alive except a very low power clock
chip, which controls the machine by turning power supply on/off. Your power
button is connected to this chip. The 'wake-on' settings only work in standby
mode when the associated devices are actually kept alive electrically.

Dynamic memory, aka DRAM/DDR/DDR2/DDR3 must constantly be refreshed(cycled), and
does not retain anything at all after halt -p, or reboot. Never.
During standby this memory will be refreshed.

Anything that survives a reboot was written to the disk. That should be obvious.
It is the disk that needs the 'scrubbing'.

Marty B.
- --
Putting Microsoft in a computer is like putting screen doors in a submarine.
Hopeless.
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