> You silently overwrite any user ptrace hw breakpoints right? To do it cleanly > would still require a reservation frame work.
There was work underway on that before (hw_breakpoint). I'm not entirely sure you want to use fancy stuff like that in kgdb. It's nice for kgdb to be as self-contained as possible, so you can debug everything else with it. If you're going to rely on lots of higher-level infrastructure, it could be using kprobes for its software breakpoint handling, too. At any rate, I think it would be good if the hw breakpoint support in kgdb were chopped out into a separate patch. First make kgdb work with no code touching debug registers at all. Then a second patch can add the hw breakpoint support. The latter one can be mulled over or replaced with a hw_breakpoint merge or just put off for a while because it's a big can of worms to multiplex the use of the debug registers. Thanks, Roland -- 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/
