Clear the computer's memory?

[Gabriel Jägenstedt]

Then you haven't got big enough swap. Usability should never throw out
security.

Mike Kenny wrote:
> What happens if at the time I hibernate I have virtually all of the swap used?
> 
> In theory the kernel must save all of my swap (already done), which is
> probably only data as it makes no sense to write executable memory to
> swap (assuming that when we speak of swap we are really talking about
> paging and not the results of trashing), plus whatever data/state/etc.
> is in real memory and registers. There is no reason to assume that the
> combination could not exceed the size of swap, is there?
> 
> On 3/30/06, Gabriel Jägenstedt <gabriel.j at telia.com> wrote:
> 
>>
>>Vincent Trouilliez wrote:
>>
>>That being said, hopefully the mechanism will be improve/sophisticated,
>>
>>>to overcome this problem. Maybe do something like my original
>>>assumption: use any partition with enough space, dump the contents of
>>>the RAM, and reload it back into RAM in the exact same state that it was
>>>before hibernating.
>>
>>Writing RAM to any available device is foolish. Some of us go to lengths
>> to have secure systems. This includes encrypted swap. There is a lot of
>>secure stuff that use swap to store encryption keys and whatnot. Hence
>>keep RAM off ordinary disks.
>>
>>--
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>>
> 
>