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From: Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>
To: George Pontis <GPontis@z9.com>
Cc: xenomai@xenomai.org
Subject: Re: [Xenomai] ARM, exception #0 ?
Date: Tue, 26 Jun 2012 15:48:25 +0200	[thread overview]
Message-ID: <4FE9BDA9.3000209@xenomai.org> (raw)
In-Reply-To: <009c01cd539e$e9f81420$bde83c60$@com>

On 06/26/2012 03:23 PM, George Pontis wrote:
> Running Xenomai 2.6.0 on an ARM at91sam9g45. I recently updated from Adeos
> patch adeos-ipipe-3.0.13-arm-1.18-05 to adeos-ipipe-3.0.13-arm-1.18-09. Then
> built a new kernel and gave it to the application developers for a test.
> There were other changes in the root FS and a few tweaks in the kernel, but
> none that looked (to me) like they would affect Xenomai. They report this
> new error:
> 
>> Xenomai: Switching ADC Task to secondary mode after exception #0 from 
>> user-space at 0xffff0fbc (pid 723)
> 
> And then nothing about the app works any more. What does this mean ?

It means there is a fault, when the PC is around 0xffff0fbc, that is in 
the tsc emulation kernel helper. Could you try reverting this commit ?

http://git.xenomai.org/?p=ipipe-gch.git;a=commitdiff;h=b79850f3fbd541215d75c1352ad2a4f4d0e8583d;hp=610c6878b23c67daef286f947c59e60f7a204922

-- 
					    Gilles.


  reply	other threads:[~2012-06-26 13:48 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-06-26 13:23 [Xenomai] ARM, exception #0 ? George Pontis
2012-06-26 13:48 ` Gilles Chanteperdrix [this message]
2012-06-27 15:34   ` George Pontis
2012-06-27 16:20     ` Gilles Chanteperdrix
2012-07-01 13:10       ` Gilles Chanteperdrix
2012-07-01 14:00 ` Gilles Chanteperdrix
2012-07-02  4:27   ` George Pontis
2012-07-02  8:49     ` Gilles Chanteperdrix
2012-07-02 15:03       ` George Pontis
2012-07-02 17:44         ` Gilles Chanteperdrix

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