On Wed, 05 Mar 2014 20:58:57 +0900 Masami Hiramatsu <[email protected]> wrote:
> Since the NMI handlers(e.g. perf) can interrupt in the > single stepping (or preparing the single stepping, do_debug > etc.), we should consider a kprobe is hit in the NMI > handler. Even in that case, the kprobe is allowed to be > reentered as same as the kprobes hit in kprobe handlers > (KPROBE_HIT_ACTIVE or KPROBE_HIT_SSDONE). > The real issue will happen when a kprobe hit while another > reentered kprobe is processing (KPROBE_REENTER), because > we already consumed a saved-area for the previous kprobe. > > Signed-off-by: Masami Hiramatsu <[email protected]> > Cc: Thomas Gleixner <[email protected]> > Cc: Ingo Molnar <[email protected]> > Cc: "H. Peter Anvin" <[email protected]> Reviewed-by: Steven Rostedt <[email protected]> -- 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/
