From owner-freebsd-fs@FreeBSD.ORG Sat Jun 24 22:26:44 2006 Return-Path: X-Original-To: freebsd-fs@freebsd.org Delivered-To: freebsd-fs@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 7CEA416A516 for ; Sat, 24 Jun 2006 22:26:44 +0000 (UTC) (envelope-from rwatson@FreeBSD.org) Received: from cyrus.watson.org (cyrus.watson.org [209.31.154.42]) by mx1.FreeBSD.org (Postfix) with ESMTP id 07CD543D45 for ; Sat, 24 Jun 2006 22:26:43 +0000 (GMT) (envelope-from rwatson@FreeBSD.org) Received: from fledge.watson.org (fledge.watson.org [209.31.154.41]) by cyrus.watson.org (Postfix) with ESMTP id 5D9CB46BD2; Sat, 24 Jun 2006 18:26:43 -0400 (EDT) Date: Sat, 24 Jun 2006 23:26:43 +0100 (BST) From: Robert Watson X-X-Sender: robert@fledge.watson.org To: Ensel Sharon In-Reply-To: Message-ID: <20060624232457.D8526@fledge.watson.org> References: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed Cc: freebsd-fs@freebsd.org Subject: Re: 6.1 quota bugs cause adaptec 2820sa kernel to crash ? X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 24 Jun 2006 22:26:44 -0000 On Fri, 23 Jun 2006, Ensel Sharon wrote: > ----- > > After loading, the system frequently (multi-daily) crashed with the error: > > Warning! Controller is no longer running! code=0xbcef0100 > > (after a page or so of aac0 timeout messages) > > So I disabled quotas on the system, and it has been completely stable ever > since. > > ----- The above sounds a lot like a problem with {Adaptect driver, controller, disks}, rather than a quota problem. So it might be that there's an I/O load change with quotas running that triggers the problem. Alternatively, there's a memory corruption bug (or the like) in quotas that corrupts data structures for the adaptec driver, but hopefully not. I believe Scott Long follows this list, but if you don't hear back in a bit, you might forward that description to him and see if he has thoughts. In the past, he's maintained the Adaptec drivers, but I'm not sure what his level of involvement with them is at this point. Robert N M Watson Computer Laboratory University of Cambridge