linux-kernel - Re: [ANNOUNCE] 3.12.6-rt9

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Message-ID: <20140111212550.2dca4829@tor.valhalla.alchemy.lu>
Date:	Sat, 11 Jan 2014 21:25:50 +0100
From:	Joakim Hernberg <jbh@...hemy.lu>
To:	Nicholas Mc Guire <der.herr@...r.at>
Cc:	Sebastian Andrzej Siewior <bigeasy@...utronix.de>,
	linux-rt-users <linux-rt-users@...r.kernel.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Thomas Gleixner <tglx@...utronix.de>, rostedt@...dmis.org,
	John Kacur <jkacur@...hat.com>
Subject: Re: [ANNOUNCE] 3.12.6-rt9

On Fri, 27 Dec 2013 21:00:24 +0100
Nicholas Mc Guire <der.herr@...r.at> wrote:

> On Mon, 23 Dec 2013, Sebastian Andrzej Siewior wrote:
> 
> > Dear RT folks!
> > 
> > I'm pleased to announce the v3.12.6-rt9 patch set.
> > 
> > Changes since v3.12.6-rt8
> <snip>
> > - A patch from Thomas Gleixner not to raise the timer softirq
> >   unconditionally (only if a timer is pending)
> > 
> 
> This one seems to deadlock early in the boot sequence on x86
> (i3/i7/Phenom-4x here and Carsten Emde also had boot failures)

This patch seems to frequently make the kernel hang hard early in the
boot process on my i7-2600k too. Reverting
timers-do-not-raise-softirq-unconditionally.patch appears to fix the
problem.

-- 

   Joakim
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