linux-kernel - Re: [Announce] 2.6.29.1-rt4

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Date:	Sun, 05 Apr 2009 14:49:56 -0700
From:	Fernando Lopez-Lezcano <nando@...ma.Stanford.EDU>
To:	Thomas Gleixner <tglx@...utronix.de>
Cc:	nando@...ma.Stanford.EDU, 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>,
	Frank Rowand <frank.rowand@...sony.com>,
	Robin Gareus <robin@...eus.org>,
	Gregory Haskins <ghaskins@...ell.com>,
	Philippe Reynes <philippe.reynes@...smpp.fr>,
	Will Schmidt <will_schmidt@...t.ibm.com>
Subject: Re: [Announce] 2.6.29.1-rt4

On Sun, 2009-04-05 at 15:53 +0200, Thomas Gleixner wrote:
> On Fri, 3 Apr 2009, Fernando Lopez-Lezcano wrote:
> > > > Just a heads up. I'm still having shutdown/suspend problems with this
> > > > release as before (I had not reported the suspend problem, I think -
> > > > machine hangs and has to be power cycled). Booting with "noreplace-smp"
> > > > fixes both. Is this something I could disable through configuration
> > > > options?
> > > 
> > > No. I have this shutdown/suspend thing on my todo list. 
> > 
> > Ah, ok. No problem. If it were not for this feature I'd probably release
> > a test version for Planet CCRMA. 
> 
> Happens this shutdown/suspend problem every time or is this sporadic ?

For me it is repeatable (on both a laptop and a desktop machine so it
does not appear to be very hardware specific). It might be of course an
interaction with the Fedora patches I use. 

In the category of "I wish I had a crystal ball" reports with no hard
data, I can confirm that my build of rt4 does hang. I was trying
2.6.29.1-rt4 during a rehearsal for a concert yesterday[*] and after a
hard hang I reverted to the vanilla Fedora kernel (which is what I had
been using because of that problem - no clues left behind in logs). 

-- Fernando

[*] a T61 lenovo laptop with intel graphics running jack 1.9.1,
linuxsampler, supercollider with two instances of the synthesis engine
doing both audio and midi processing, a convolution reverb using jconv,
ambisonics decoding through two instances of ambdec and the java based
swingosc supercollider gui. Very loaded. 

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