linux-kernel - Re: [PATCH 2/3] clocksource: add DB8500 PRCMU Timer support

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Date:	Wed, 1 Jun 2011 15:25:07 +0100
From:	Russell King - ARM Linux <linux@....linux.org.uk>
To:	Mattias Wallin <mattias.wallin@...ricsson.com>
Cc:	Linus Walleij <linus.walleij@...aro.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Lee Jones <lee.jones@...aro.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH 2/3] clocksource: add DB8500 PRCMU Timer support

On Wed, Jun 01, 2011 at 04:22:06PM +0200, Mattias Wallin wrote:
> On 06/01/2011 09:57 AM, Mattias Wallin wrote:
>> I'll experiment with it during the day and see how it goes.
> It did not work to have the clocksource init as a core_initcall.
> I got an null pointer oops in sched_clock_poll.
> The lauterbach trace showed that the sched_clock_update_fn was null  
> since the poll function was called before the init.

sched_clock is supposed to be setup and initialized really early.  Why
are you doing trying to move it soo late?
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