Date: Sat, 19 Jan 2002 11:04:28 -0800 From: Alfred Perlstein <bright@mu.org> To: Julian Elischer <julian@elischer.org> Cc: Bruce Evans <bde@zeta.org.au>, arch@FreeBSD.ORG Subject: Re: doreti() and userret() Message-ID: <20020119110428.Z13686@elvis.mu.org> In-Reply-To: <Pine.BSF.4.21.0201190933540.2065-100000@InterJet.elischer.org>; from julian@elischer.org on Sat, Jan 19, 2002 at 09:49:48AM -0800 References: <20020120034844.A5320-100000@gamplex.bde.org> <Pine.BSF.4.21.0201190933540.2065-100000@InterJet.elischer.org>
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* Julian Elischer <julian@elischer.org> [020119 10:01] wrote: > > On Sun, 20 Jan 2002, Bruce Evans wrote: > > > On Sat, 19 Jan 2002, Julian Elischer wrote: > > > > > Userret() is supposed to be called the last thing before the > > > processor is returned to userland.. > > > > At least on i386's, this is only true for the pessimized returns from > > syscall() and trap(). Returns from interrupt handlers normally just > > return. They sometimes (rarely) go through ast() to handle cases where > > userret() would do something. In my version of FreeBSD, userret() is > > almost a no-op and almost all the things that were in userret() are in > > ast(). > > So, Bruce, can you outline to use what is in BDEBSD that we can expect > to see in the future? It soulds to em like it would be nice to get some > more of your work in.. I would too, Bruce please stop holding out on us. -- -Alfred Perlstein [alfred@freebsd.org] 'Instead of asking why a piece of software is using "1970s technology," start asking why software is ignoring 30 years of accumulated wisdom.' Tax deductable donations for FreeBSD: http://www.freebsdfoundation.org/ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-arch" in the body of the message
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