Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261175AbUKET2O (ORCPT ); Fri, 5 Nov 2004 14:28:14 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261174AbUKET2O (ORCPT ); Fri, 5 Nov 2004 14:28:14 -0500 Received: from ms-smtp-02.rdc-kc.rr.com ([24.94.166.122]:11757 "EHLO ms-smtp-02.rdc-kc.rr.com") by vger.kernel.org with ESMTP id S261163AbUKET15 (ORCPT ); Fri, 5 Nov 2004 14:27:57 -0500 Date: Fri, 5 Nov 2004 13:26:13 -0600 From: Andy Warner To: Brad Campbell Cc: linux-ide@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [SATA] status report, libata-dev queue updated Message-ID: <20041105132613.A30910@florence.linkmargin.com> References: <20041105100049.GA31653@havoc.gtf.org> <418BCED3.1030600@wasp.net.au> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5i In-Reply-To: <418BCED3.1030600@wasp.net.au>; from brad@wasp.net.au on Fri, Nov 05, 2004 at 11:04:51PM +0400 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1061 Lines: 28 Brad Campbell wrote: > [...] > Read that as "I have tried really, really hard to break it and as yet been unable to". Is your system SMP ? I'm actively tracking a problem now with pass-thru behaviour (via /dev/sg* ) on SMP systems. Symptom is a system freeze after a few messages like this: ata3: command 0x34 timeout, stat 0x58 host_stat 0x0 ata2: command 0x24 timeout, stat 0x58 host_stat 0x0 ata3: status=0x58 { DriveReady SeekComplete <4>ATA: abnormal status 0x58 on port 0xF8A3CCC7 ata2: status=0x58 { DriveReady SeekComplete DataRequest } DataReq This particular example is of a Read Sectors command pending on one drive and Write Sectors on another. Don't know if it is the pio state machine not being SMP-safe, or what just yet. -- andyw@pobox.com Andy Warner Voice: (612) 801-8549 Fax: (208) 575-5634 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/