From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Mosberger Date: Tue, 27 Apr 2004 21:48:38 +0000 Subject: Re: cacheble to uncachble change Message-Id: <16526.54582.528367.407390@napali.hpl.hp.com> List-Id: References: <408D5C58.E07A5FBE@email.mot.com> In-Reply-To: <408D5C58.E07A5FBE@email.mot.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-ia64@vger.kernel.org >>>>> On Tue, 27 Apr 2004 16:31:57 -0500, Jack Steiner said: Jack> Maybe I was not clear. I *know* that memory attribute aliasing Jack> is a bad thing to do. I was commenting on Robin's mail and Jack> providing a real-life example on where/how it causes Jack> problems. Prefetching is a perfectly valid thing for the cpu Jack> to do. Any time there is a valid TLB entry, prefetching can & Jack> will happen. DONT allow a TLB entry to cover both cached & Jack> uncached pages. Sounds like we're in violent agreement! ;-) --david