Subject: Re: v2.6.21.4-rt11
From: Thomas Gleixner <tglx@linutronix.de>
To: Nelson Castillo <nelsoneci@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>, linux-kernel@vger.kernel.org,
       linux-rt-users@vger.kernel.org
In-Reply-To: <2accc2ff0706170949j26c391aek7ed32e0e55d9a3d1@mail.gmail.com>
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	 <2accc2ff0706170949j26c391aek7ed32e0e55d9a3d1@mail.gmail.com>
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Date: Sun, 17 Jun 2007 18:59:18 +0200
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On Sun, 2007-06-17 at 11:49 -0500, Nelson Castillo wrote:
> > > There are many choices and
> > > I don't know what is the more friendly. By friendly I mean the one that
> > > is likely to be merged and that cooperate with you.
> >
> > Which choices do you mean ?
> 
> I mean implementations. I've seen lot of them but i don't know which one
> to try (I'm new to RT and the implementation in this thread seems to
> be very nice).

Thanks :)

> > >   http://people.redhat.com/mingo/realtime-preempt/patch-2.6.21.4-rt14
> > >
> > > : undefined reference to `usecs_to_cycles'
> > > make: *** [.tmp_vmlinux1] Error 1
> >
> > Which ARM sub arch ?
> 
> sub arch AT91 -- (Atmel AT91RM9200 processor).

It lacks support for the generic timeofday and clock event layers, which
causes the compile breakage.

I take a look at the compile errors and ping somebody who is working on
support for AT91 to send out the patches ASAP.

	tglx


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