From owner-freebsd-current@FreeBSD.ORG Thu Aug 26 18:07:58 2004 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id DE99316A4CF for ; Thu, 26 Aug 2004 18:07:58 +0000 (GMT) Received: from carver.gumbysoft.com (carver.gumbysoft.com [66.220.23.50]) by mx1.FreeBSD.org (Postfix) with ESMTP id CC11743D5D for ; Thu, 26 Aug 2004 18:07:58 +0000 (GMT) (envelope-from dwhite@gumbysoft.com) Received: by carver.gumbysoft.com (Postfix, from userid 1000) id BE5B072DD5; Thu, 26 Aug 2004 11:07:58 -0700 (PDT) Received: from localhost (localhost [127.0.0.1]) by carver.gumbysoft.com (Postfix) with ESMTP id BC83A72DD4; Thu, 26 Aug 2004 11:07:58 -0700 (PDT) Date: Thu, 26 Aug 2004 11:07:58 -0700 (PDT) From: Doug White To: Vinod Kashyap In-Reply-To: Message-ID: <20040826110701.L37301@carver.gumbysoft.com> References: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII cc: current@freebsd.org Subject: RE: Giant deadlock related to twe X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 26 Aug 2004 18:07:59 -0000 On Mon, 23 Aug 2004, Vinod Kashyap wrote: > > Just got this on my amd64 box. A disk flaked out in my > > machine, which has > > a 3ware 8006-2LP with 2 80GB drives in a RAID0. My X session > > locked up > > and was able to break to ddb. Some ddb twiddling follows. > > It looks like, > > at first glance, some sort of deadlock against softupdates. > > > > twed0: drive timeouttwed0: drive timeouttwed0: drive > > timeouttwed0: drive > > timeout > > twed0: drive timeouttwed0: drive timeouttwed0: drive timeouttwe0: AEN: > > > > twed0: controller error - device failure (flags = 0x80) > > twed0: controller error - device failure (flags = 0x80) > > twed0: controller error - device failure (flags = 0x80) > > twed0: controller error - device failure (flags = 0x80) > > The messages indicate timeouts due to the drive continuously returning > BUSY to the firmware on the controller. This could be caused by the > the drive going bad, or even a one time disturbance like tugging of > cables, etc. Right, and a failing drive it was, but it shouldn't lock up the entire system when it happens. -- Doug White | FreeBSD: The Power to Serve dwhite@gumbysoft.com | www.FreeBSD.org