Date: Wed, 20 Sep 2000 09:26:10 +0200 (CEST) From: Marius Bendiksen <mbendiks@eunet.no> To: Terry Lambert <tlambert@primenet.com> Cc: freebsd-fs@FreeBSD.ORG Subject: Re: how mmap buffer writes handled? Message-ID: <Pine.BSF.4.05.10009200924320.30277-100000@login-1.eunet.no> In-Reply-To: <200009200712.AAA00357@usr05.primenet.com>
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> Per my original post, the reason is that a kernel write fault, Oops. I misunderstood your post. Apologies. > > (PS: The method you mentioned would still qualify as "force an exception > > to be raised when accessing the page for write" ;) > > Actually, not. It's on the order of the F00F bug fix, which is > a gross kludge of the worst sort. The page being written doesn't Agree. Might there not be some cleaner way of resolving the F00F bug ? ISTR having looked into this some time back. > exist. It's a non-existance exception, not an access exception, > since if the page mapping existed, it wouldn't result in the > exception in the first place. 8-). I did not specify "access" as a qualifier to "exception". Marius To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-fs" in the body of the message
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