From: Philippe Gerum <rpm@xenomai.org>
To: 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 23:23:18 +0200 [thread overview]
Message-ID: <1158614598.5009.71.camel@domain.hid> (raw)
In-Reply-To: <450F0451.8070102@domain.hid>
On Mon, 2006-09-18 at 15:40 -0500, Jeff Webb wrote:
> 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?
There's a good chance that both issues are related. Several heads are
currently banging on proper walls to precisely spot the issue, since it
seems that not all x86 setups are affected.
>
> 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
>
> _______________________________________________
> Xenomai-help mailing list
> Xenomai-help@domain.hid
> https://mail.gna.org/listinfo/xenomai-help
--
Philippe.
next prev parent reply other threads:[~2006-09-18 21:23 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 ` [Xenomai-help] invalid use of FPU in Xenomai context Jeff Webb
2006-09-18 21:23 ` Philippe Gerum [this message]
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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