linux-kernel - Re: [ANNOUNCE] 3.0-rt7 - Error with low latency desktop config

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Message-ID: <20110809173310.GB11398@pengutronix.de>
Date:	Tue, 9 Aug 2011 19:33:10 +0200
From:	Uwe Kleine-König 
	<u.kleine-koenig@...gutronix.de>
To:	Tim Sander <tim.sander@....com>
Cc:	Peter Zijlstra <peterz@...radead.org>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	"Paul E. McKenney" <paulmck@...ibm.com>,
	linux-rt-users <linux-rt-users@...r.kernel.org>
Subject: Re: [ANNOUNCE] 3.0-rt7 - Error with low latency desktop config

Hi Tim,

On Tue, Aug 09, 2011 at 05:07:49PM +0200, Tim Sander wrote:
> Hi Uwe
> 
> I just double checked.
> > The config doesn't look like a 3.0-rt7 one. There is neither
> > 
> > 	PREEMPT_RTB=y
> > 
> > nor
> > 
> > 	# PREEMPT_RTB is not set
> If i switch the configs with "Kernel Feature"-> "Preemption Model" -
> >"(Preemtible Kernel) Low-Latency Desktop"
> there are no such config options visible even with a -rt7 kernel.
> (My workflow in ptxdist is
> comment (in/out) rtpatch in patches/linux-3.0/series
> ptxdist clean kernel && ptxdist targetinstall kernel
> deploy.sh
I think targetinstall should ask about the changed config items.

> Otherwise ptxdist would cheat on me and at 
> $(PROJECT_DIR)/configs/$(PLATFORM)/kernelconfig would be out of sync.)
check if ${PROJECT_DIR}/${PLATFORMNAME}/build/linux-3.0/ (or similar)
really has the rt patch applied. (e.g. is there a localversion-rt file?)

Best regards
Uwe

-- 
Pengutronix e.K.                           | Uwe Kleine-König            |
Industrial Linux Solutions                 | http://www.pengutronix.de/  |
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