Date: Thu, 28 Mar 2002 10:50:02 -0800 (PST) From: Julian Elischer <julian@elischer.org> To: Bernd Walter <ticso@cicely8.cicely.de> Cc: Jake Burkholder <jake@locore.ca>, John Baldwin <jhb@FreeBSD.ORG>, arch@FreeBSD.ORG Subject: Re: SMP safe reference counting Message-ID: <Pine.BSF.4.21.0203281049150.53382-100000@InterJet.elischer.org> In-Reply-To: <20020328132041.GA24734@cicely8.cicely.de>
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On Thu, 28 Mar 2002, Bernd Walter wrote: > On Wed, Mar 27, 2002 at 02:34:59PM -0800, Julian Elischer wrote: > > > > > > On Wed, 27 Mar 2002, Jake Burkholder wrote: > > > > > Apparently, On Wed, Mar 27, 2002 at 04:51:57PM -0500, > > > > > > We support 386 still? > > > > > We certainly support it but I think that for 386 we can ignore the concept > > of SMP and make versions that are not SMP safe but DO > > satisfy the basic functionality.. > > > > i.e. the '386 version of atomic ops need not be atomic :-) > > They need to be atomic in the sense of preemtion. All instructions are atomic from preemtion but they don't need t be atomic on a bus-cycle basis. > > -- > B.Walter COSMO-Project http://www.cosmo-project.de > ticso@cicely.de Usergroup info@cosmo-project.de > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-arch" in the body of the message > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-arch" in the body of the message
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