From owner-freebsd-questions@FreeBSD.ORG Mon Apr 5 09:11:36 2004 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 34C7016A4CE for ; Mon, 5 Apr 2004 09:11:36 -0700 (PDT) Received: from athene.pchg.net (athene.pchg.net [24.222.33.2]) by mx1.FreeBSD.org (Postfix) with ESMTP id D133C43D1D for ; Mon, 5 Apr 2004 09:11:35 -0700 (PDT) (envelope-from admin@pchg.net) Received: from localhost (arachnid.pchg.net [24.222.33.3]) by athene.pchg.net (Postfix) with ESMTP id 9AD9355CA1 for ; Mon, 5 Apr 2004 13:11:13 -0300 (ADT) Received: from zeus.pchg.net (zeus.pchg.net [24.222.33.9]) by webmail.pchg.net (IMP) with HTTP for ; Mon, 5 Apr 2004 13:11:38 -0300 Message-ID: <1081181498.4071853aa3bb6@webmail.pchg.net> Date: Mon, 5 Apr 2004 13:11:38 -0300 From: Ryan MacDonald To: freebsd-questions@freebsd.org MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8bit User-Agent: Internet Messaging Program (IMP) 3.2.1 X-Originating-IP: 24.222.33.9 X-Mail-Host: PCHG Internet Solutions Subject: Boot failure: CD-ROM problem [taskqueue stalled] X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 05 Apr 2004 16:11:36 -0000 I have a system here that occasionally hangs while the kernel is booting. It happens as the CD-ROM drive is being initialized. Here's the error: acd0: WARNING - MODE_SENSE_BIG interrupt was seen but taskqueue stalled This doesn't happen every time - usually if I restart the system following the error, it will start right up. When the kernel does boot okay, here's that same line: acd0: CDROM at ata1-master PIO0 I found the module responsible for generating the error message - ata-queue.c - but I don't know enough to follow the C code to understand what's happening: "http://fxr.watson.org/fxr/source/dev/ata/ata-queue.c" I know the drive works - I used it to install the system. I would be interested to know what the cause of this error is and if there is a convenient workaround. If not, it's no tragedy if I have to pull the drive out. On the other hand, this could be symptomatic of a problem with the ata system in FreeBSD. In any case, your help is appreciated. Here's what's in and on this thing: FreeBSD 5.2.1 (problem exisits with custom and GENERIC kernels) Pentium 233 / 64 MB / Intel 430TX chipset with PIIX4 UDMA33 controller Acer 32x CD-ROM at secondary master Thanks Ryan _______________________ Sent via PCHG Webmail http://www.pchg.net