From: Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>
To: Gregory Dymarek <gregd72002@gmail.com>
Cc: xenomai@xenomai.org
Subject: Re: [Xenomai] RaspberryPi kernel 3.8 issue
Date: Fri, 28 Feb 2014 12:41:27 +0100 [thread overview]
Message-ID: <531075E7.7060107@xenomai.org> (raw)
In-Reply-To: <CAEbDrgmLq08Xq5Cgt7oXX3koQDr+HVx_JS-7Nn_pC53rmTTV-g@mail.gmail.com>
On 02/27/2014 09:33 PM, Gregory Dymarek wrote:
> Not sure if I understand this. This is the first call to __report_bad_irq (
> https://github.com/raspberrypi/linux/blob/rpi-3.8.y/kernel/irq/spurious.c )
>
> I added the trace on line 192.
>
> AFAIK this is the first call to the function. the trace freeze i added is
> not conditional.
I think the issue you observe is that the irqs_unhandled counter goes
over 99000, meaning that the driver returns IRQ_NONE and does not
acknowledge the interrupt at device level, so that the interrupt
triggers again. So, having enough trace points to see what happens
before this irq storm will be hard. Could you try reducing the 100000
and 99000 thresholds in kernel/irq/spurious.c, function note_interrupt?
--
Gilles.
next prev parent reply other threads:[~2014-02-28 11:41 UTC|newest]
Thread overview: 61+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-02-23 21:27 [Xenomai] RaspberryPi kernel 3.8 issue Gregory Dymarek
2014-02-23 21:37 ` Gilles Chanteperdrix
2014-02-23 22:18 ` Gregory Dymarek
2014-02-23 22:36 ` Gilles Chanteperdrix
2014-02-23 22:37 ` Adam Vaughan
2014-02-23 23:08 ` Adam Vaughan
2014-02-23 23:30 ` Gregory Dymarek
2014-02-23 23:32 ` Gregory Dymarek
2014-02-23 23:42 ` Gilles Chanteperdrix
2014-02-24 21:19 ` Gregory Dymarek
2014-02-24 22:00 ` Gilles Chanteperdrix
2014-02-25 20:04 ` Gregory Dymarek
2014-02-25 20:20 ` Gilles Chanteperdrix
2014-02-25 20:23 ` Gregory Dymarek
[not found] ` <CAEbDrgkJCnbWu_J4svoXOU1x2rz=n95A5+3Ee=R_9CpMgx-JmA@mail.gmail.com>
2014-02-25 20:25 ` Gilles Chanteperdrix
2014-02-25 20:43 ` Gregory Dymarek
2014-02-25 20:50 ` Gilles Chanteperdrix
2014-02-25 21:09 ` Gregory Dymarek
2014-02-25 21:24 ` Gilles Chanteperdrix
2014-02-25 21:28 ` Gilles Chanteperdrix
2014-02-25 21:31 ` Gilles Chanteperdrix
2014-02-25 22:30 ` Adam Vaughan
2014-02-25 23:20 ` Gregory Dymarek
2014-02-25 23:42 ` Adam Vaughan
2014-02-25 23:45 ` Adam Vaughan
2014-02-26 0:12 ` Gregory Dymarek
2014-02-26 0:22 ` Adam Vaughan
2014-02-26 0:33 ` Gilles Chanteperdrix
2014-02-26 10:00 ` Gregory Dymarek
2014-02-26 18:48 ` Adam Vaughan
2014-02-26 21:46 ` Gilles Chanteperdrix
2014-02-26 10:26 ` Paul
2014-02-25 23:51 ` Gilles Chanteperdrix
[not found] ` <CAEbDrgkWZqSxjCUfjR3YCp=YOzh1r-=YC6Wyr-Jvk9d7JYEcmQ@mail.gmail.com>
[not found] ` <530E6159.4050204@xenomai.org>
2014-02-26 22:37 ` Gregory Dymarek
2014-02-27 10:48 ` Gilles Chanteperdrix
2014-02-27 18:43 ` Gregory Dymarek
2014-02-27 20:14 ` Gilles Chanteperdrix
2014-02-27 20:33 ` Gregory Dymarek
2014-02-27 20:48 ` Gilles Chanteperdrix
2014-02-27 20:58 ` Gilles Chanteperdrix
2014-02-27 21:15 ` Gilles Chanteperdrix
2014-02-27 22:54 ` Gregory Dymarek
2014-02-28 1:12 ` Paul
2014-02-28 11:42 ` Gilles Chanteperdrix
2014-02-28 11:41 ` Gilles Chanteperdrix [this message]
2014-03-01 12:27 ` Gregory Dymarek
2014-03-02 15:11 ` Gilles Chanteperdrix
2014-03-02 17:26 ` Gregory Dymarek
2014-03-02 18:05 ` Gilles Chanteperdrix
2014-03-02 18:16 ` Gilles Chanteperdrix
[not found] ` <CAEbDrg=2nX1kKOGt6i7b-w5AsLXkEyoJCGUMw1dkMXvka4MeKw@mail.gmail.com>
2014-03-02 18:55 ` Gregory Dymarek
2014-03-02 18:57 ` Gilles Chanteperdrix
2014-03-02 19:04 ` Gilles Chanteperdrix
2014-03-02 19:08 ` Gregory Dymarek
2014-03-02 21:03 ` Gregory Dymarek
2014-02-24 0:22 ` Paul
2014-02-24 0:47 ` Adam Vaughan
2014-02-24 0:53 ` Adam Vaughan
2014-02-24 1:20 ` Adam Vaughan
-- strict thread matches above, loose matches on Subject: below --
2014-02-26 19:59 Gregory Dymarek
2014-02-26 20:29 ` Gregory Dymarek
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