>> Happen to have more details? If they really run in user context their >> priv level would be the same right, otherwise they run in something >> weird, not quite user not quite kernel. Now that might be the case, but >> I'm utterly ignorant on itanic. > > See Documentation/ia64/fsys.txt
Summary is that the fast system calls run in ring 0 ... but since they didn't save all the user state (in order to make them fast!) there are restrictions on what things they can do. In particular they must not trap. -Tony ------------------------------------------------------------------------------ Register Now for Creativity and Technology (CaT), June 3rd, NYC. CaT is a gathering of tech-side developers & brand creativity professionals. Meet the minds behind Google Creative Lab, Visual Complexity, Processing, & iPhoneDevCamp as they present alongside digital heavyweights like Barbarian Group, R/GA, & Big Spaceship. http://p.sf.net/sfu/creativitycat-com _______________________________________________ perfmon2-devel mailing list perfmon2-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/perfmon2-devel
