Re: [patch] Real-Time Preemption, -RT-2.6.11-rc2-V0.7.36-04

From: Lee Revell
Date: Tue Feb 01 2005 - 15:32:23 EST

On Tue, 2005-02-01 at 21:17 +0100, Ingo Molnar wrote:
> * Lee Revell <rlrevell@xxxxxxxxxxx> wrote:
> > Assuming it's still available, what is the config option to get the
> > "User-space atomicity debugging" feature? This feature is extremely
> > useful for debugging complex JACK clients, several Linux audio
> > developers have asked me about it but I can't find the config option
> > anymore.
> it's always-on in the -RT tree (it's a pretty low-overhead thing). I
> havent changed the mechanism so the jackd hacks from a couple of weeks
> ago should still work.

OK. So for application triggered tracing you need
LATENCY_TRACING enabled, as described here:


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