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SubjectRe: A system for rebootless kernel security updates
Enrico Weigelt wrote:
> I didn't have the time for an deeper study yet, but as you already
> mentioned, there're lots of limitations which can make it harmful:
> as soon as interfaces chance, you're in *big* trouble. There should
> be a way for finding them (automatically). Maybe extract the
> interface signatures (including structs!) so some appropriate place
> next to the kernel, so they can be checked before (re)loading the
> module.

Actually there is a mature discipline around data changes that
dates back to before Unix v7, but it's off-topic for this
discussion: it would make the changes too big (;-))

If anyone is interested, see http://multicians.org/stachour.html
and/or send me mail

--dave (reading LKML when he should be working) c-b
--
David Collier-Brown | Always do right. This will gratify
Sun Microsystems, Toronto | some people and astonish the rest
davecb@sun.com | -- Mark Twain
(905) 943-1983, cell: (647) 833-9377, (800) 555-9786 x56583
bridge: (877) 385-4099 code: 506 9191#


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