From mboxrd@z Thu Jan  1 00:00:00 1970
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Date: Mon, 18 Sep 2006 15:40:49 -0500
From: Jeff Webb <jeff.webb@domain.hid>
MIME-Version: 1.0
Subject: Re: [Xenomai-help] invalid use of FPU in Xenomai context
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Jeff Webb wrote:
> Okay...  I have found a simple example that exhibits the problem on my
> linux-2.4 system (see attached).  I am running xenomai 2.2.2 with the two RTAI
> FIFO patches (and the latest FPU-related patch).  

I still get the same error with xenomai-2.2.3 on my 2.4.33.3 and 2.6.17.13 x86 machines.  Did anyone get a chance to try the sample kernel module I posted?

  https://mail.gna.org/public/xenomai-help/2006-09/msg00143.html

Perhaps this is related to the FPU bug Jan just reported?

  https://mail.gna.org/public/xenomai-core/2006-09/msg00138.html

If so, then maybe the problem is related to the rt-pipe changes...

> I get two unresolved
> math-related symbols when I try to insert this module on my FC5 2.6 machine,
> so I can't comment on the linux-2.6 behavior at this time.  But that's a
> puzzle for another day...

FYI, I added "-ffast-math -mhard-float" to the CFLAGS to get rid of the unresolved symbols.

Thanks,

-Jeff