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Date:	Sun, 15 Mar 2009 07:48:03 +0100
From:	Uwe Kleine-König 
	<u.kleine-koenig@...gutronix.de>
To:	Thomas Gleixner <tglx@...utronix.de>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	rt-users <linux-rt-users@...r.kernel.org>,
	Ingo Molnar <mingo@...e.hu>,
	Steven Rostedt <rostedt@...dmis.org>,
	Peter Zijlstra <peterz@...radead.org>,
	Carsten Emde <ce@...g.ch>, Clark Williams <williams@...hat.com>
Subject: Re: some ARM fixes for 2.6.29-rc7-rt1

Hello,

On Fri, Mar 13, 2009 at 02:04:58AM +0100, Uwe Kleine-König wrote:
> on top of 2.6.29-rc7-rc1 I did some ARM related fixes that you can find
> at
> 
> 	git://git.pengutronix.de/git/ukl/linux-2.6.git v2.6.29-rc7-rt1-pu
> 
> The top commit currently isn't pretty as it contains several independant
> fixes.  Some of them are netX specific so you probably don't need them,
> but they shouldn't hurt you either.
> 
> I will update this branch as I continue working in a non-fast-forward
> manner.  I use TopGit to manage this branch, you might want to use it,
> too, if you intend to follow my work.
> 
> My status quo is:
> 
> 	Testing tracer sched_switch: PASSED
> 	Testing tracer function: PASSED
> 	Testing tracer irqsoff: .. no entries found ..FAILED!
> 	Testing tracer preemptoff: .. no entries found ..FAILED!
> 	Testing tracer preemptirqsoff: .. no entries found ..
[removed stack dump]
> 	FAILED!
I still have this problem.  I digged into irqsoff without finding the reason.

Looking at trace_selftest_startup_irqsoff I saw that
trace_buffer_lock_reserve is called thrice successfully.

Steven (or someone else of course), do you can give me a hint?

> Other than that my machine boots and reports from time to time
> 
> 	scheduling while atomic
> 
> and
> 
> 	sleeping function called from invalid context at kernel/rtmutex.c:683
> 
> Both errors probably happen because some spin_locks need to be converted
> to raw_spin_locks.  Will look later.
Up to now I didn't try to do much with my system, but just booting
doesn't yield such BUGs or Warnings anymore.
 
Best regards
Uwe

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