Date: Thu, 10 Jan 2002 14:17:43 +1100 (EST) From: Bruce Evans <bde@zeta.org.au> To: Nate Williams <nate@yogotech.com> Cc: Daniel Eischen <eischen@pcnet1.pcnet.com>, Dan Eischen <eischen@vigrid.com>, Peter Wemm <peter@wemm.org>, Archie Cobbs <archie@dellroad.org>, Alfred Perlstein <bright@mu.org>, <arch@FreeBSD.ORG> Subject: Re: Request for review: getcontext, setcontext, etc Message-ID: <20020110141330.M10745-100000@gamplex.bde.org> In-Reply-To: <15420.58839.954146.527043@caddis.yogotech.com>
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> > > Assuming I used followed things up with 'fnsave', will the exception be > > > triggered by a frstor, and thus the exception will be correctly reported > > > by the thread triggering the exception? > > > > Only on broken systems. > > Why is reporting a SIGFPE considered broken? This is a valid exception, > and it should be reported. Because the SIGFPE is for the broken context-switching code and not for the program. > > See Appendix C of the Intel MMX manual (1997 version at least) for more > > details. > > I don't have the MXX manual, just the x86/87 programming manuals for x86 > (X <= 3). Same here, except I also have the 486 manual and a web browser :-). Bruce To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-arch" in the body of the message
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