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From: Jeff Webb <jeff.webb@domain.hid>
Cc: xenomai@xenomai.org
Subject: Re: [Xenomai-help] invalid use of FPU in Xenomai context
Date: Mon, 18 Sep 2006 15:40:49 -0500	[thread overview]
Message-ID: <450F0451.8070102@domain.hid> (raw)
In-Reply-To: <20060916042719.M57867@domain.hid>

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


  reply	other threads:[~2006-09-18 20:40 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <450B2BE1.1050105@domain.hid>
2006-09-16  4:38 ` Fw: [Fwd: Re: [Xenomai-help] invalid use of FPU in Xenomai context] Jeff Webb
2006-09-18 20:40   ` Jeff Webb [this message]
2006-09-18 21:23     ` [Xenomai-help] invalid use of FPU in Xenomai context Philippe Gerum
2006-10-25 20:00       ` Jeff Webb
2006-10-25 20:24         ` Jan Kiszka
2006-10-25 20:43           ` Jeff Webb
2006-10-25 23:37           ` Jeff Webb
2006-10-27 16:30             ` Jeff Webb
2006-09-20 10:27   ` Fw: [Fwd: Re: [Xenomai-help] invalid use of FPU in Xenomai context] Jan Kiszka
2006-09-14 22:47 [Xenomai-help] invalid use of FPU in Xenomai context Jeff Webb
2006-09-15  8:25 ` Philippe Gerum
2006-09-15 14:39   ` Jeff Webb
2006-09-15  9:12 ` Gilles Chanteperdrix
2006-09-15 14:43   ` Jeff Webb
     [not found]     ` <17674.48814.824895.814925@domain.hid>
2006-09-15 20:33       ` Jeff Webb

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