From mboxrd@z Thu Jan 1 00:00:00 1970 From: Laurent Pinchart Date: Wed, 15 May 2013 01:05:18 +0000 Subject: Re: marzen-reference doesn't boot with CONFIG_PREEMPT Message-Id: <2127663.jjrZOH2Jhg@avalon> List-Id: References: <4961084.Cgj9yMUAgI@avalon> In-Reply-To: <4961084.Cgj9yMUAgI@avalon> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-sh@vger.kernel.org Hi Simon, On Wednesday 15 May 2013 09:23:59 Simon Horman wrote: > On Tue, May 14, 2013 at 09:08:07PM +0200, Laurent Pinchart wrote: > > But marzen does (renesas-next-20130513). Is that a known issue ? > > No, I was not aware of that. > > I would suspect, based on work on the kzm9g, that the problem > relates to driver initialisation order. In the case of kzm9g > my recollection is that the problem was resolved by initialising > clocksources earlier by changing their initcall level. Did that reach mainline ? I've tried booting kzm9g-reference with CONFIG_PREEMPT and have been unable to boot it as well with renesas- next-20130513. Maybe we should enable CONFIG_PREEMPT by default to catch similar issues in the future. -- Regards, Laurent Pinchart