Re: [RFC] [PATCH] In-kernel gdbstub based on utrace Infrastructure.

[Ingo Molnar <mingo@elte.hu>]

* Frank Ch. Eigler <fche@redhat.com> wrote:

> 
> Ingo Molnar <mingo@elte.hu> writes:
> 
> > [...]  Since the speed of development in this area is truly glacial
> > at the moment and the practical advantages that i can experience
> > personally (directly as a Linux user and indirectly as a maintainer)
> > are miniscule so far, caution is warranted IMO. [...]
> 
> If the "caution" you suggest is operationally equivalent to 
> discouraging even miniscule improvements, is it any wonder that 
> progress is glacial?

I think you might be mixing up cause and causation ;-)

> The gdbstub prototype was constructed for two reasons: to demonstrate 
> utrace usage now, and in the future to be incrementally useful (over 
> ptrace, by moving into fast kernel-space operations like 
> multithreading control, gdb-tracepoint support, other stuff).  #1 is 
> about done.  With respect to #2, we can certainly commit to ongoing 
> work on improvements, provided the community shows interest and 
> goodwill.

What i'd like to see is measurable benefits to users, developers and 
maintainers. I'd like to see the same for SystemTap too btw.

	Ingo