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From: "Uwe Kleine-König" <u.kleine-koenig@pengutronix.de>
To: Bo Hansen <bh@newtec.dk>, Thomas Gleixner <tglx@linutronix.de>,
	john stultz <johnstul@us.ibm.com>
Cc: rt-users <linux-rt-users@vger.kernel.org>
Subject: Re: hrtimer problem on AT91RM9200
Date: Thu, 10 Sep 2009 11:51:28 +0200	[thread overview]
Message-ID: <20090910095128.GA1967@pengutronix.de> (raw)
In-Reply-To: <4AA8A03B.2050804@newtec.dk>

Hello Bo,

On Thu, Sep 10, 2009 at 08:44:11AM +0200, Bo Hansen wrote:
> Hi Uwe,
>
> Sorry for my late reply.
>
> I only get the initialization line:
> ************** at91rm9200_timer_init: shift=32, mult=140737,
> min_delta_ns=61036, minclc=2  
OK, that corresponds to my calculation.

Strange, with my patch lr is at rt_mutex_unlock in the oops, before it
was at clockevents_program_event.  I don't understand that.
Can you try changing the pr_info to pr_emerg?
If that doesn't help, do you have CONFIG_DEBUG_LL available?  If so can
you change the pr_info (now pr_emerg) to something like:

	void printch(char);
	void printhex8(unsigned);
	void printascii(const char *);
	printascii("**************");
	printhex8(dev->shift);
	printch(':');
	printhex8(dev->mult);
	printch(':');
	printhex8(dev->min_delta_ns);
	printch('\n');

and enable CONFIG_DEBUG_LL of course?

jstultz, tglx: there shouldn't be anything that fiddles around with
shift, mult and min_delta, should it?  (Well, increasing min_delta is
OK.)

Best regards
Uwe

-- 
Pengutronix e.K.                              | Uwe Kleine-König            |
Industrial Linux Solutions                    | http://www.pengutronix.de/  |
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  reply	other threads:[~2009-09-10  9:51 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-08-19 12:24 hrtimer problem on AT91RM9200 Bo Hansen
2009-08-19 15:33 ` Remy Bohmer
2009-08-20 19:52 ` Uwe Kleine-König
2009-08-21 12:57   ` Bo Hansen
     [not found]     ` <fae6a9700908232327u65fca65bt97bb8c43a91345cd@mail.gmail.com>
2009-08-24  6:30       ` Vivek Satpute
2009-09-03 14:12     ` Uwe Kleine-König
2009-09-10  6:44       ` Bo Hansen
2009-09-10  9:51         ` Uwe Kleine-König [this message]
2009-09-11 15:20           ` Uwe Kleine-König
2009-09-11 23:07             ` Uwe Kleine-König
2009-09-14 10:50               ` Bo Hansen
2009-09-14 11:10                 ` Uwe Kleine-König
2009-09-15  9:29                   ` [SOLVED, RFC] " Uwe Kleine-König
2009-09-15 15:29                     ` Thomas Gleixner
2009-09-15 18:40                       ` Uwe Kleine-König
2009-09-15 19:06                         ` Thomas Gleixner
2009-09-15 20:54                           ` Thomas Gleixner
2009-09-16  6:26                     ` Bo Hansen
2009-09-14  9:09             ` Bo Hansen
  -- strict thread matches above, loose matches on Subject: below --
2009-08-19 16:40 Re[2]: " Bo Hansen
     [not found] ` <3efb10970908191121u3e88d35fs2606dcb76d877ac@mail.gmail.com>
2009-08-21 13:16   ` Bo Hansen

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