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

    * 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


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