linux-kernel - Re: 2.6.18-rt1

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Message-ID: <20060921082454.GA32756@plexity.net>
Date:	Thu, 21 Sep 2006 01:24:54 -0700
From:	Deepak Saxena <dsaxena@...xity.net>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	linux-kernel@...r.kernel.org, Daniel Walker <dwalker@...sta.com>,
	Thomas Gleixner <tglx@...utronix.de>, rmk@....linux.org.uk,
	Kevin Hilman <khilman@...sta.com>,
	linux-arm-kernel@...ts.arm.linux.org.uk
Subject: Re: 2.6.18-rt1

On Sep 21 2006, at 10:04, Ingo Molnar was caught saying:
> 
> * Deepak Saxena <dsaxena@...xity.net> wrote:
> 
> > I am seeing an intermittent lock up on the ARM Versatile board during 
> > the ALSA driver init that only shows up with (PREEMPT_RT & 
> > !HIGH_RES_TIMERS & ARM_EABI) enabled. If HRT is disabled and EABI is 
> > enabled, the kernel works every time, and same with !RT & !HRT & EABI.  
> > I get no oops, just a complete lock up with no console output.
> 
> does enabling LOCKDEP give you any better info? (It might not make a 
> difference on the bootup that locks, but maybe you'll get a lockdep clue 
> about the problem in one of the successful bootups.)

This is with LOCKDEP enabled. I'll look at this more tommorrow but
I think next steps for me are printks to see if I can pinpoint the
issue and possibly looking at the assembly to see if there's an obvious
compiler issue.

~Deepak

-- 
Deepak Saxena - dsaxena@...xity.net - http://www.plexity.net

"An open heart has no possessions, only experiences" - Matt Bibbeau
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