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Date:      Sun, 2 Apr 2000 14:54:54 +0200
From:      Andre Albsmeier <andre.albsmeier@mchp.siemens.de>
To:        Martin Cracauer <cracauer@cons.org>
Cc:        Andre Albsmeier <andre.albsmeier@mchp.siemens.de>, "Sean O'Connell" <sean@stat.Duke.EDU>, Andrew Gallatin <gallatin@cs.duke.edu>, FreeBSD emulation <freebsd-emulation@FreeBSD.ORG>, marcel@FreeBSD.ORG
Subject:   Re: linux_base 6.1 may work now
Message-ID:  <20000402145454.A64658@internal>
In-Reply-To: <20000313083137.A25830@cons.org>; from cracauer@cons.org on Mon, Mar 13, 2000 at 08:31:38AM %2B0100
References:  <14538.64168.213977.432746@grasshopper.cs.duke.edu> <20000311235754.A5556@stat.Duke.EDU> <20000312154020.A486@internal> <20000313083137.A25830@cons.org>

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On Mon, 13-Mar-2000 at 08:31:38 +0100, Martin Cracauer wrote:
> > > > There was a commit yesterday which may have fixed the linux problem.
> > > > I don't have an x86 handy to play with -- can you see if it makes
> > > > splus et al run with linux_base 6.1?
> 
> [my commit]
> > > >   Change the default FPU control word so that exceptions for new
> > > >   processes are now masked until set by fpsetmask(3).
> > > > 
> > Confirmed for -STABLE with acroread 4.05!
> 
> Folks,
> 
> I am surprised that this affected the Linux emulator.
> 
> Emulators should set the default FPU control word to what the native
> kernel would, they should not inherit this value from the one that
> FreeBSD assigns to its native processes.
> 
> Although FreeBSD-4.0 now defaults to what Linux and Solaris expect,
> this should be fixed in the Linux and Solaris emulators. Because the
> FreeBSD control word may still be set to the old value by users and/or
> a dynamic scheme for FreeBSD processes may be implemented.
> 
> Is a person who feels responsible for the svr4 emulator on the CC: list
> of this message?

I would like to raise this subject again. Would it be any problem
to commit the changes to sys/i386/include/npx.h to 3-STABLE as well?
I have tried there and it makes acroread 4.05 work...

Thanks,

	-Andre


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