From owner-freebsd-stable@FreeBSD.ORG Wed Mar 30 04:40:54 2005 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 1D32D16A4CE for ; Wed, 30 Mar 2005 04:40:54 +0000 (GMT) Received: from sasami.jurai.net (sasami.jurai.net [69.17.104.113]) by mx1.FreeBSD.org (Postfix) with ESMTP id A3B3E43D68 for ; Wed, 30 Mar 2005 04:40:53 +0000 (GMT) (envelope-from mdodd@FreeBSD.ORG) Received: from sasami.jurai.net (winter@sasami.jurai.net [69.17.104.113]) by sasami.jurai.net (8.13.1/8.13.1) with ESMTP id j2U4emrG068231; Tue, 29 Mar 2005 23:40:50 -0500 (EST) (envelope-from mdodd@FreeBSD.ORG) Date: Tue, 29 Mar 2005 23:40:48 -0500 (EST) From: "Matthew N. Dodd" X-X-Sender: winter@sasami.jurai.net To: Karl Denninger In-Reply-To: <20050329200841.A772@denninger.net> Message-ID: <20050329233843.L328@sasami.jurai.net> References: <20050329200841.A772@denninger.net> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-1.5.6 (sasami.jurai.net [69.17.104.113]); Tue, 29 Mar 2005 23:40:51 -0500 (EST) cc: freebsd-stable@FreeBSD.ORG Subject: Re: DANGER WILL ROBINSON! SERIOUS problem with current 5.4-PRERELEASE X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 30 Mar 2005 04:40:54 -0000 On Tue, 29 Mar 2005, Karl Denninger wrote: > 1.42: When resubmitting a timed out request, reset donecount. > 1.41: Reset timeout when we are back from interrupt. > 1.40: Correct logical error, result was that retries wasn't always made but > failure reported instead. > 1.39: Do not retry on requests that have lost their device during reinit. > > This change is EXTREMELY DANGEROUS. > > This change needs to be backed out immediately until it can be determined > why a requeued request destabilizes the system. The changes in question are very small. Could you attempt to isolate which one is the cause? Thanks. -- 10 40 80 C0 00 FF FF FF FF C0 00 00 00 00 10 AA AA 03 00 00 00 08 00