Re: [RFC PATCH 1/1] trace: Move trace event enable from fs_initcallto early_initcall

[Ezequiel Garcia]

Hi Steven,

On Fri, Aug 17, 2012 at 11:39 AM, Steven Rostedt <rostedt@xxxxxxxxxxx> wrote:
>
> I don't think kmalloc is the issue. The big problem in front of you is
> jump labels. That's what enables and disables trace points, and it gets
> initialized just after memory is set up. You may have to force jump
> labels off when doing early tracing :-/ Although I'm not sure it
> requires allocations.
>

Well, I wasn't thinking *that* early actually. So, I'm trying to enable tracing
at some point after jump_labels (could be near perf_event_init).

Right now, the static ring buffer part is done and I'm having some
problems copying this ring buffer into the *real* one.

Mind giving me another hint?

Thanks a lot for your help so far,
Ezequiel.
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/