On Tue, 2009-09-22 at 12:13 -0700, Pauli Nieminen wrote: > Hi! > > I have been thinking GPU reset as possible DoS attack from > user-space.Problem here is that display doesn't work anymore at all if > attacker chooses to run a application that constantly causes GPU hang. > It would be of course ideal to have CS checker not to let in any > problematic combinations of commands. Butin practice we can't assume > that everything is safe with all hardware so we need to take some > actions prevent possible problems. > > So first defense would be terminating application that did send > command stream that caused GPU hang. But attacker could easily by-pass > this protection with forking all the time new processes. > > So we need stronger defense if same user account is causing multiple > hangs in short time frame. I would think temporary denying new DRI > access would let user to gain back control of system and take actions > to stop the problematic program from running.
OK, but you'd want to be able to turn it off for developers -- you've just described my normal workflow... Keith ------------------------------------------------------------------------------ Come build with us! The BlackBerry® Developer Conference in SF, CA is the only developer event you need to attend this year. Jumpstart your developing skills, take BlackBerry mobile applications to market and stay ahead of the curve. Join us from November 9-12, 2009. Register now! http://p.sf.net/sfu/devconf -- _______________________________________________ Dri-devel mailing list Dri-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/dri-devel
