From mboxrd@z Thu Jan  1 00:00:00 1970
Message-ID: <52CB261F.1050808@xenomai.org>
Date: Mon, 06 Jan 2014 22:54:39 +0100
From: Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>
MIME-Version: 1.0
References: <CAFnctWFSGJc0Q6ebZ0zBhxRmFEwkvCYKinAEgD-xzcCbfLaPBg@mail.gmail.com>
 <52C7CF1E.2050404@xenomai.org> <52C85088.7020501@xenomai.org>
 <52C86093.4000609@xenomai.org>
 <CAFnctWG1QoQ=f9JCsdxAoU25mc797fKoT9dVS_DdZFRcQ5CP3A@mail.gmail.com>
 <52C891C1.2090007@xenomai.org>
 <CAFnctWFb-dNtNDGf0kckejhQ+tFAj2hBw3gm5Xv8DoALi6f26g@mail.gmail.com>
 <52C949D6.6090904@xenomai.org> <52C9B255.7030702@xenomai.org>
 <52CA622D.806@xenomai.org>
 <CAFnctWGs-mqukTTujenvex9Doq0DoJ_ohFEPDjd7ECYRzu6tpw@mail.gmail.com>
 <52CB23F5.6000006@xenomai.org>
 <CAFnctWGwssFMPeLwhpJnob46rXwRDDxuj_Snoh6Cqs8cbRN2Cw@mail.gmail.com>
In-Reply-To: <CAFnctWGwssFMPeLwhpJnob46rXwRDDxuj_Snoh6Cqs8cbRN2Cw@mail.gmail.com>
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 7bit
Subject: Re: [Xenomai] rtdm_task_init call freezes the system
List-Id: Discussions about the Xenomai project <xenomai.xenomai.org>
List-Unsubscribe: <http://www.xenomai.org/mailman/options/xenomai>,
 <mailto:xenomai-request@xenomai.org?subject=unsubscribe>
List-Archive: <http://www.xenomai.org/pipermail/xenomai/>
List-Post: <mailto:xenomai@xenomai.org>
List-Help: <mailto:xenomai-request@xenomai.org?subject=help>
List-Subscribe: <http://www.xenomai.org/mailman/listinfo/xenomai>,
 <mailto:xenomai-request@xenomai.org?subject=subscribe>
To: Nima Nourozi <n.nourozi@gmail.com>
Cc: xenomai@xenomai.org

On 01/06/2014 10:52 PM, Nima Nourozi wrote:
> On Mon, Jan 6, 2014 at 1:45 PM, Gilles Chanteperdrix <
> gilles.chanteperdrix@xenomai.org> wrote:
> 
>> On 01/06/2014 08:10 PM, Nima Nourozi wrote:
>>> Here is the task initialization code:
>>>
>>> *rtdm_printk("kicking of tasklet...\n");*
>>> * retval = rtdm_task_init(&heartbeat_task, "spi_transfer",
>>> xx_start_transfer, NULL, 99, 100000000 /* 100 ms */);*
>>> * __ipipe_serial_debug("*******return value = %d\n", retval);*
>>> * if(retval)*
>>> * {*
>>> * __ipipe_serial_debug("error initializing task: %i\n", retval);*
>>> * }*
>>>
>>> Here is the task function:
>>>
>>> void xx_start_transfer(void *arg)
>>> {
>>>
>>> int ret;
>>>
>>> while (1) {
>>> ret = rtdm_task_wait_period();
>>> __ipipe_serial_debug("*******return value = %d\n", ret);
>>> gpio_set_value(LED, 1);
>>> rtdm_task_sleep(0);
>>> }
>>> }
>>
>> I can not reproduce your problem, it works fine here. Could you post the
>> full code of a simplified driver which triggers the problem ?
>>
>>
>> --
>>                                                                 Gilles.
>>
> 
> Sure, please find it attached. It's just the standard atmel_spi.c with
> task_init command added in atmel_spi_probe() function.
> 
Whatever happened to "simplified"? Please try to reduce your code to the
minimum code which triggers the bug. By doing so, you may even find the
problem yourself.

-- 
                                                                Gilles.