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SubjectRe: [PATCH 0/2 v2] tracing: Enable tracepoints early and allow printk to use them
On Sun, 14 Dec 2014 15:16:09 -0500
Steven Rostedt <> wrote:

> 1) Allow traceopoints to be enabled right after mm_init(). By passing
> in the trace_event= kernel command line parameter, tracepoints can be
> enabled at boot up. For debugging things like the initialization of
> interrupts, it is needed to have tracepoints enabled very early. People
> have asked about this before and this has been on my todo list. As it
> can be helpful for Thomas to debug his upcoming 3.20 IRQ work, I'm
> pushing this now. This way he can add tracepoints into the IRQ set up
> and have have users enable them when things go wrong.

Cut and paste is a bitch!


-- Steve

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