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Date: Thu, 08 Mar 2007 09:46:42 +0100
From: Steven Scholz <steven.scholz@domain.hid>
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Subject: Re: [Xenomai-core] latency hangs on AT91RM9200
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To: Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>
Cc: Xenomai-core@domain.hid

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 ...

Steven