linux-kernel - Re: Possible regression due to "tick: broadcast: Prevent livelock from event handler"

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Message-ID: <alpine.DEB.2.11.1507031721390.3916@nanos>
Date:	Fri, 3 Jul 2015 17:23:20 +0200 (CEST)
From:	Thomas Gleixner <tglx@...utronix.de>
To:	Wolfram Sang <wsa@...-dreams.de>
cc:	Simon Horman <horms@...ge.net.au>,
	Kevin Hilman <khilman@...nel.org>,
	Tyler Baker <tyler.baker@...aro.org>,
	Borislav Petkov <bp@...en8.de>,
	Geert Uytterhoeven <geert+renesas@...der.be>,
	Magnus Damm <magnus.damm@...il.com>, linux-sh@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: Possible regression due to "tick: broadcast: Prevent livelock
 from event handler"

On Fri, 3 Jul 2015, Wolfram Sang wrote:
> > Ok. So it's unrelated to deep idle states. Any chance of poking with
> > JTAG at the frozen box? If not, are there GPIOs which you could use to
> > monitor certain state?
> 
> No JTAGger here at the moment. And no manual/schematics for this board
> :(

Ok. One more check please. Does nohz=off on the command line fix/hide
the issue as well?

Thanks,

	tglx
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