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Re: FPU handling




To: port-amd64%netbsd.org@localhost

Subject: Re: FPU handling

From: Ignatios Souvatzis <is%netbsd.org@localhost>

Date: Thu, 3 Jan 2008 22:53:59 +0100


On Thu, Jan 03, 2008 at 06:36:16PM +0100, Geert Hendrickx wrote:
> On Fri, Dec 21, 2007 at 05:56:58PM +0100, Ignatios Souvatzis wrote:
> > Hello,
> > 
> > I'm trying to make erlang work on NetBSD/amd64.
> > 
> > The code that needs to be ported is about this:
> > 
> > [...]
> > 
> > but the test programs hang; it looks like the handler gets called over
> > and over again with mxcsr=0x1900 and IP always being the same value.
> 
> 
> Updating the package to erlang-R12B seems to fix the build on my amd64.

I'll check that. It might be that it knows how to avoid using the
FPU trap - but still not how to handle it. AD@ thinks that our fputrap()
code in the kernel is fishy, if I understood correctly. (I'd have committed
a fix a while now, but couldn't make more than _detecting_ the fpu in the
autoconf stage work.)

Regards,
        -is
-- 
seal your e-mail: http://www.gnupg.org/



References:

Re: FPU handling
From: Geert Hendrickx




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