From owner-freebsd-smp Tue Aug 20 17:22: 7 2002 Delivered-To: freebsd-smp@freebsd.org Received: from mx1.FreeBSD.org (mx1.FreeBSD.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 9A19C37B400; Tue, 20 Aug 2002 17:22:04 -0700 (PDT) Received: from swan.mail.pas.earthlink.net (swan.mail.pas.earthlink.net [207.217.120.123]) by mx1.FreeBSD.org (Postfix) with ESMTP id 5ED6B43E6A; Tue, 20 Aug 2002 17:22:04 -0700 (PDT) (envelope-from tlambert2@mindspring.com) Received: from pool0108.cvx21-bradley.dialup.earthlink.net ([209.179.192.108] helo=mindspring.com) by swan.mail.pas.earthlink.net with esmtp (Exim 3.33 #1) id 17hJG7-0006uG-00; Tue, 20 Aug 2002 17:22:03 -0700 Message-ID: <3D62DCE7.9B82F401@mindspring.com> Date: Tue, 20 Aug 2002 17:20:55 -0700 From: Terry Lambert X-Mailer: Mozilla 4.79 [en] (Win98; U) X-Accept-Language: en MIME-Version: 1.0 To: obrien@freebsd.org Cc: smp@freebsd.org Subject: Re: (FWD) -current data corruption References: <20020820143723.A85243@hub.freebsd.org> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-freebsd-smp@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org David O'Brien wrote: > This seems to only happen on SMP machines. Any insight? Where in the file is being corrupted? Start? Middle? End? If I had to guess, I would say that it was probably anywhere in the file, and that it had to do with copy-on-write handling with a read-then-write that was split between CPUs. Unfortunately, -current SMP won't run on my ASUS dual P90 any more, so I'm limited to educated guesses. -- Terry To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-smp" in the body of the message