Messages in this thread | | | Date | Mon, 08 Mar 2004 10:09:47 -0500 | From | Chris Friesen <> | Subject | Re: Some highmem pages still in use after shrink_all_memory()? |
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Arjan van de Ven wrote: >>Note that there are some applications for which it is a *bug* if an >>mlocked page gets written out to magnetic media. (gpg, for example.) >> > > mlock() does not guarantee things not hitting magnetic media, just as > mlock() doesn't guarantee that the physical address of a page doesn't > change.
The mlock() man page sure seems to hint that they do, by explicitly describing its use by high-security data processing as a way to keep the information from getting to disk. There also seem to be a lot of references on the web about using mlock() in secure programming.
Something is not right...
Chris
-- Chris Friesen | MailStop: 043/33/F10 Nortel Networks | work: (613) 765-0557 3500 Carling Avenue | fax: (613) 765-2986 Nepean, ON K2H 8E9 Canada | email: cfriesen@nortelnetworks.com
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