On 2010-11-06, Vaclav Mocek <little.owl(a)email.cz> wrote:
It would be usefull to overwrite some parts of memory (keys etc.),
before the computer is switched off. So, my question is: Is there
already implemented and used some kind of protection?
There was a patch for Linux to scramble memory just before halt. However
it has not been pushed to developers nor incoroporated into the Linux.
Unfortunatelly, I cannot find it now. It's few years old code. I rember
it had solved more problems than just this one and that the patch
touched halt(8) utility and kernel.
-- Petr