From owner-freebsd-arch Tue Jan 21 16:23:41 2003 Delivered-To: freebsd-arch@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id AFBC737B401 for ; Tue, 21 Jan 2003 16:23:40 -0800 (PST) Received: from elvis.mu.org (elvis.mu.org [192.203.228.196]) by mx1.FreeBSD.org (Postfix) with ESMTP id 5E0FB43ED8 for ; Tue, 21 Jan 2003 16:23:40 -0800 (PST) (envelope-from bright@elvis.mu.org) Received: by elvis.mu.org (Postfix, from userid 1192) id 2C235AE28D; Tue, 21 Jan 2003 16:23:40 -0800 (PST) Date: Tue, 21 Jan 2003 16:23:40 -0800 From: Alfred Perlstein To: "M. Warner Losh" Cc: sam@errno.com, arch@FreeBSD.ORG Subject: Re: Alfre's malloc changes: the next step Message-ID: <20030122002340.GK42333@elvis.mu.org> References: <20030121.144243.52206100.imp@bsdimp.com> <20030121233932.GI42333@elvis.mu.org> <072d01c2c1a7$0fbba490$52557f42@errno.com> <20030121.165125.29485504.imp@bsdimp.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20030121.165125.29485504.imp@bsdimp.com> User-Agent: Mutt/1.4i Sender: owner-freebsd-arch@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG * M. Warner Losh [030121 15:53] wrote: > In message: <072d01c2c1a7$0fbba490$52557f42@errno.com> > "Sam Leffler" writes: > : > Yes. Leave it alone, people may be shocked, but it's the right thing. > : > : You cannot commit stuff like this w/o calling for a review. > > Based on the feedback I've gotten so far, it looks like there's > widespread support for the backout + direction change. The reason > there's support is that it has been thought out and is bulletproof, > not a one-off hack. We've got to start using interfaces that are more > robust if we are to get the smp/kse work done. While your changes are > well intentioned, they take us away from a robust interface to a > hackish one that is sufficeint, but unverifiable. It's obivous that you either haven't even read or are too overwhelmed by whining to considered my points. I expect you to at least feign enough respect for me to consider the points I brought up in response to your post. The old interface was a hack to "remind" people too stupid to RTFM/UTSL about how the allocators worked. And they didn't work, there were still mistakes. This "hack" makes it _impossible_ to make any of the mistakes done previously. Your "fix" makes the same mistakes possible, but now will panic()s instead of doing what was intended if not written. -- -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.' To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-arch" in the body of the message