From: Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>
To: Steven Scholz <steven.scholz@domain.hid>
Cc: Xenomai-core@domain.hid
Subject: Re: [Xenomai-core] latency hangs on AT91RM9200
Date: Thu, 08 Mar 2007 10:18:07 +0100 [thread overview]
Message-ID: <45EFD4CF.5080808@domain.hid> (raw)
In-Reply-To: <45EFCD72.3080904@domain.hid>
Steven Scholz wrote:
> Gilles Chanteperdrix wrote:
>
>>Steven Scholz wrote:
>> > Hi Gilles,
>> >
>> > >> Ok, found the bug (actually, Philippe did), as almost expected, the way
>> > >> it is related to the latency program period is not really obvious. The
>> > >> bug is that in the macro "irq_handler" in entry-armv.S, the return value
>> > >> (in r0) of __ipipe_grab_irq is overriden by the subsequent call to
>> > >> get_irqnr_and_base.
>> > >>
>> > >
>> > > Here comes a patch. Note that it will only work correctly with
>> > > CONFIG_PREEMPT disabled for now.
>> >
>> > Any progress with CONFIG_PREEMPT enabled ?
>>
>>enabling CONFIG_PREEMPT almost works. But non real-time tasks system
>>calls fail from time to time.
>
>
> But I do need a new patch?
>
> Cause with last patch I get "BUG()" in schedule ...
The patch that almost works with CONFIG_PREEMPT only exist on Philippe's
disk, it has not been released.
--
Gilles Chanteperdrix
prev parent reply other threads:[~2007-03-08 9:18 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-02-23 11:27 [Xenomai-core] latency hangs on AT91RM9200 Steven Scholz
2007-02-23 13:16 ` Gilles Chanteperdrix
2007-02-23 13:26 ` Philippe Gerum
2007-02-23 13:53 ` Steven Scholz
2007-02-23 13:50 ` Steven Scholz
2007-02-23 13:57 ` Philippe Gerum
2007-02-23 13:56 ` Steven Scholz
2007-02-23 14:12 ` Philippe Gerum
2007-02-23 14:16 ` Steven Scholz
2007-02-23 14:11 ` Gilles Chanteperdrix
2007-02-23 14:14 ` Steven Scholz
2007-02-23 14:21 ` Jan Kiszka
2007-02-23 15:02 ` Steven Scholz
2007-02-23 15:09 ` Jan Kiszka
2007-02-23 14:24 ` Gilles Chanteperdrix
2007-02-23 14:33 ` Steven Scholz
2007-02-23 15:05 ` Gilles Chanteperdrix
2007-02-23 14:36 ` Jan Kiszka
2007-02-23 14:39 ` Steven Scholz
2007-02-23 14:41 ` Jan Kiszka
2007-02-26 10:11 ` Steven Scholz
2007-02-23 13:25 ` Philippe Gerum
2007-02-23 13:49 ` Steven Scholz
2007-02-23 15:14 ` Steven Scholz
2007-02-23 15:23 ` Gilles Chanteperdrix
2007-02-23 15:28 ` Jan Kiszka
2007-02-23 16:41 ` Gilles Chanteperdrix
2007-02-26 10:17 ` Gilles Chanteperdrix
2007-02-26 11:21 ` Gilles Chanteperdrix
2007-02-26 13:36 ` Steven Scholz
2007-03-08 8:28 ` Steven Scholz
2007-03-08 8:43 ` Gilles Chanteperdrix
2007-03-08 8:46 ` Steven Scholz
2007-03-08 9:18 ` Gilles Chanteperdrix [this message]
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