On Mon, Nov 11, 2013 at 10:58:12AM +0000, Will Deacon wrote: > Single-stepping on x86 is different to the step behaviour on arm64 afaik. On > ARM, we have to manually remove the breakpoint, perform a single-step, then > add the breakpoint again. If we re-enable debug exceptions in the kprobe > handler, the step will complete early and we'll never step off the > breakpoint.
This is about hardware breakpoints right? Which are per-cpu? Otherwise removing the breakpoint would open up a hole for another thread to slip through while you're single stepping. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
