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Date: Tue, 3 May 2005 16:00:29 +0200
From: Marc Olzheim <marcolz@stack.nl>
To: Daniel Eischen <deischen@freebsd.org>
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cc: Marc Olzheim <marcolz@stack.nl>
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Subject: Re: Floating point exceptions with -pthread
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On Tue, May 03, 2005 at 09:54:23AM -0400, Daniel Eischen wrote:
> > Hi.
> >
> > I was wondering whether it was safe to use floating point calculations /
> > libm functions with 5.4-STABLE's pthread library on HT+SMP. I keep
> > getting floating point exceptions on places where they should not
> > happen... :-(
>=20
> Yes, it should work fine.  If you can verify the problem exists
> (or doesn't) on -current, that might help.  It sounds like FPU
> context isn't getting saved/restored correctly in the kernel.

I don't have a -current machine with HyperThreading... :-/

But I mailed a test program in a different thread; perhaps somebody else
is willing to run it...

Marc

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