On Fri, 28 Feb 2014 08:11:59 -0800 "H. Peter Anvin" <[email protected]> wrote:
> If so, do we need to hoist the reading of %cr2 all the way into assembly > or something else? Function tracing code should not fault. Peter and Jiri were discussing on IRC to make sure that perf could not enable userspace stack tracing for function tracing. At this point, I would say, lets get rid of any users of function tracing callbacks that can fault. There callbacks are limited in context even more so than any other context (faults, interrupts, and NMIs). -- Steve -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
