From owner-freebsd-current@FreeBSD.ORG Tue Jul 20 07:50:38 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 3DA0916A4CE; Tue, 20 Jul 2004 07:50:38 +0000 (GMT) Received: from av7-1-sn1.fre.skanova.net (av7-1-sn1.fre.skanova.net [81.228.11.113]) by mx1.FreeBSD.org (Postfix) with ESMTP id D1DA243D1F; Tue, 20 Jul 2004 07:50:37 +0000 (GMT) (envelope-from daniel_k_eriksson@telia.com) Received: by av7-1-sn1.fre.skanova.net (Postfix, from userid 502) id 0860D37EF6; Tue, 20 Jul 2004 09:50:37 +0200 (CEST) Received: from smtp3-2-sn1.fre.skanova.net (smtp3-2-sn1.fre.skanova.net [81.228.11.164]) by av7-1-sn1.fre.skanova.net (Postfix) with ESMTP id EE22137E55; Tue, 20 Jul 2004 09:50:36 +0200 (CEST) Received: from gadget (h130n1fls11o822.telia.com [213.64.66.130]) by smtp3-2-sn1.fre.skanova.net (Postfix) with ESMTP id D51A937E4D; Tue, 20 Jul 2004 09:50:36 +0200 (CEST) From: "Daniel Eriksson" To: "'Scott Long'" Date: Tue, 20 Jul 2004 09:50:42 +0200 Organization: Home Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.6626 Importance: Normal In-Reply-To: <40FCC1AA.9060609@freebsd.org> X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1441 cc: freebsd-current@freebsd.org Subject: RE: HEADS UP [Re: thread+preemption stability improvement] 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: Tue, 20 Jul 2004 07:50:38 -0000 Scott Long wrote: > Thanks for the report. I'm sure that there is a bug of some=20 > sort in the > ATA driver that is being exposed by PREEMPTION, but I'm also going to > consider turning off preemption in the next day or two since=20 > this isn't > the only lingering problem. I don't know if my SATA problems are at all related to the problems I've seen with GBDE, GEOM stripe, GEOM vinum and "old" vinum, but I probably should mention them. They show up with or without preemption turned on. * GEOM BDE disc encryption seems to work, until it's time to tear it = down and reboot the machine. It always claims the device is busy when I try = to unmount the file system, and if I use the -f flag to unmount it panics = the machine. Skipping the unmount results in a panic during shutdown. * GEOM stripe made all discs that were part of ataraid arrays time out = when I tried to create a simple striped array (from two single discs). Since = the system was live, and processes were accessing the ataraid arrays, the machine eventually panicked in some vfs function. * GEOM vinum starts up fine, but as soon as I start accessing arrays = (raid-1 and raid-0) it looses its discs, crashing the arrays. * "old" vinum panics with a dangling vnode (when it starts up) if I run = a normal boot. If I boot single-user and then manually start vinum it = works fine. /Daniel Eriksson