From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Thu, 1 May 2008 18:33:45 -0700 (PDT) From: Linus Torvalds Subject: Re: [rfc] data race in page table setup/walking? In-Reply-To: <20080502012006.GD30768@wotan.suse.de> Message-ID: References: <20080429050054.GC21795@wotan.suse.de> <20080430060340.GE27652@wotan.suse.de> <20080501002955.GA11312@wotan.suse.de> <20080502012006.GD30768@wotan.suse.de> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-linux-mm@kvack.org Return-Path: To: Nick Piggin Cc: Hugh Dickins , linux-arch@vger.kernel.org, Linux Memory Management List , Benjamin Herrenschmidt List-ID: On Fri, 2 May 2008, Nick Piggin wrote: > > I guess it is possible. But at least in the case of write address, you'd > have to wait for later stores anyway in order to do the alias detection, > which might be the most common case. No, just the *address*. The data for the second store may not be ready, but the address may have been resolved (and checked that it doesn't fault etc) and the previous store may complete. Linus -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org