From owner-freebsd-arch  Fri Jan 11 22:11: 3 2002
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From: Nate Williams <nate@yogotech.com>
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Date: Fri, 11 Jan 2002 23:10:43 -0700
To: Bruce Evans <bde@zeta.org.au>
Cc: Nate Williams <nate@yogotech.com>,
	Alfred Perlstein <bright@mu.org>,
	Terry Lambert <tlambert2@mindspring.com>,
	Daniel Eischen <eischen@pcnet1.pcnet.com>,
	Dan Eischen <eischen@vigrid.com>, Peter Wemm <peter@wemm.org>,
	Archie Cobbs <archie@dellroad.org>, <arch@FreeBSD.ORG>
Subject: Re: Request for review: getcontext, setcontext, etc
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> > I don't know what Bruce is saying anymore.  I do know that a DIVBYZERO
> > exception is no longer generated (by default).  Whether or not it can be
> > correctly generated/caught is another story.
> 
> % RCS file: /home/ncvs/src/sys/i386/include/npx.h,v
> % Working file: npx.h
> % head: 1.23
> % ...
> % ----------------------------
> % revision 1.18
> % date: 2000/03/10 17:56:33;  author: cracauer;  state: Exp;  lines: +5 -35
> % branches:  1.18.2;
> % Change the default FPU control word so that exceptions for new
> % processes are now masked until set by fpsetmask(3).
> %
> % Submitted by:	bde
> % Approved by:	jkh, bde
> % ----------------------------
> 
> Even casual observers should have noticed the the thread from hell before
> this commit, although it was only half as long as the current one.

I remember this, but like I said, I'm not sure if it can be correctly
dealt with assuming a modified mask.


Nate

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