memory scrubbing

marty goodoldmarty at gmail.com
Tue Jan 29 12:17:57 PST 2008


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> I've noticed that when I start Xorg I see a screenshot of my previous Xorg 
> session. This survives a reboot. It looks like the memory just becomes free 
> when Xorg is shut down, and the image stays there until it's overwritten.
> 
I remember something weird with xorg - private disk buffers or the like.
Kernel will try to resume from swap unless you say no. I always use the kernel
option "noresume" to prevent that. Faster too. Swap space can be cleared the
same way it is made, but would present risks during the powerdown sequence.

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