From: Thierry Bultel <thierry.bultel@wanadoo.fr>
To: Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>
Cc: xenomai@xenomai.org
Subject: Re: [Xenomai] Target frozen with rtcan_virt
Date: Sun, 23 Sep 2012 16:57:15 +0200 [thread overview]
Message-ID: <505F234B.6070208@wanadoo.fr> (raw)
In-Reply-To: <505F0D40.9030105@xenomai.org>
Gilles,
thanks for your advice.
I do not mind using the versatile express especially for emulation, I only want a board with a cortex A9
that boots in qemu, with a linux kernel >= 3.2, and an available ipipe patch.
Unfortunately qemu does not support the IMX6 yet, which is the board I aim, so I have to cope with another one.
If you have a board name that is already fully supported and that fits my needs,
please tell me and I will use it with pleasure.
Meanwhile I have set CONFIG_SMP to "no", and my recv program now just works fine.
I have not been able to identify (in the CONFIG_SMP=y case) the difference between
"rtcanrecv" and my recv program, that may make behave differently (freeze or not) but
only the footprint.
cheers,
Thierry
Le 23/09/2012 15:23, Gilles Chanteperdrix a écrit :
> On 09/23/2012 09:42 AM, Thierry Bultel wrote:
>
>> Hi,
>>
>> My configuration is linux-3.2.21+ipipe-core-3.2.21-arm-1.patch,
>> running in qemu 1.2.0 for versatile express. I have CONFIG_SMP but
>> qemu is launched with 1 core only (else it does not boot, keeps hung
>> just after "booting the kernel", but that is not the point here).
>
> Basically, versatile express is not a board supported by the I-pipe
> patch, so, the first thing is to check that the I-pipe port is working
> correctly. For instance, I would run tsc -w first to see if the tsc
> emulation is working correctly. Then you can use this document:
>
> http://www.xenomai.org/index.php/I-pipe-core:ArmPorting
>
> As a check list.
>
> Also, some modifications would be needed to get it working in SMP mode.
> This should be much easier to start with the I-pipe kernel for 3.4,
> except for the "global timer" which seems not to be present on versatile
> express, so, some code would be needed to skip the initialization in
> gt_setup when we detect a processor that does not have a global timer.
>
next prev parent reply other threads:[~2012-09-23 14:57 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <505EB99F.7050705@wanadoo.fr>
2012-09-23 7:42 ` [Xenomai] Target frozen with rtcan_virt Thierry Bultel
2012-09-23 13:23 ` Gilles Chanteperdrix
2012-09-23 14:57 ` Thierry Bultel [this message]
2012-09-23 14:59 ` Gilles Chanteperdrix
2012-10-09 12:45 ` Thierry Bultel
2012-10-09 21:34 ` Gilles Chanteperdrix
2012-10-09 21:41 ` Gilles Chanteperdrix
2012-10-09 21:51 ` Gilles Chanteperdrix
2012-10-10 7:38 ` Thierry Bultel
2012-10-10 7:51 ` Gilles Chanteperdrix
2012-10-10 7:56 ` Jan Kiszka
2012-10-10 8:04 ` Gilles Chanteperdrix
2012-10-10 8:10 ` Jan Kiszka
2012-10-10 8:58 ` Gilles Chanteperdrix
2012-10-10 9:01 ` Jan Kiszka
2012-10-10 9:23 ` Gilles Chanteperdrix
2012-10-10 10:04 ` Jan Kiszka
2012-10-10 10:07 ` Gilles Chanteperdrix
2012-10-10 10:25 ` Jan Kiszka
2012-10-10 10:54 ` Philippe Gerum
2012-10-10 11:30 ` Gilles Chanteperdrix
2012-10-10 12:09 ` Philippe Gerum
2012-10-10 12:33 ` Gilles Chanteperdrix
2012-10-10 12:41 ` Philippe Gerum
2012-10-10 12:43 ` Philippe Gerum
2012-10-10 12:45 ` Philippe Gerum
2012-10-10 12:55 ` Gilles Chanteperdrix
2012-10-10 12:57 ` Philippe Gerum
2012-10-10 13:01 ` Gilles Chanteperdrix
2012-10-10 13:09 ` Philippe Gerum
2012-10-10 13:16 ` Gilles Chanteperdrix
2012-10-10 13:18 ` Philippe Gerum
2012-10-10 13:19 ` Gilles Chanteperdrix
2012-10-10 13:57 ` Philippe Gerum
2012-10-10 14:52 ` Gilles Chanteperdrix
2012-10-11 8:05 ` Gilles Chanteperdrix
2012-11-05 13:33 ` Thierry Bultel
2012-11-05 18:46 ` Gilles Chanteperdrix
2012-11-06 7:22 ` Thierry Bultel
2012-11-06 11:59 ` Philippe Gerum
2012-11-06 14:49 ` Gilles Chanteperdrix
2012-10-10 13:17 ` Philippe Gerum
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