From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S263333AbTEMSxb (ORCPT ); Tue, 13 May 2003 14:53:31 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S263320AbTEMSxb (ORCPT ); Tue, 13 May 2003 14:53:31 -0400 Received: from ns.virtualhost.dk ([195.184.98.160]:183 "EHLO virtualhost.dk") by vger.kernel.org with ESMTP id S263333AbTEMSxa (ORCPT ); Tue, 13 May 2003 14:53:30 -0400 Date: Tue, 13 May 2003 21:06:02 +0200 From: Jens Axboe To: Oliver Neukum Cc: Bartlomiej Zolnierkiewicz , Alan Cox , Oleg Drokin , lkhelp@rekl.yi.org, linux-kernel@vger.kernel.org Subject: Re: 2.5.69, IDE TCQ can't be enabled Message-ID: <20030513190602.GN17033@suse.de> References: <200305121455.58022.oliver@neukum.org> <200305131925.25121.oliver@neukum.org> <20030513172839.GG17033@suse.de> <200305132046.23122.oliver@neukum.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <200305132046.23122.oliver@neukum.org> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Tue, May 13 2003, Oliver Neukum wrote: > > > You don't have to reproduce, your case has two drives on a channel doing > > tcq. That's not really supported, and the last patch sent should make > > that scenario "work" (by not enabling tcq on any of them). > > Is this a principal problem? Yes. Without dedicated hardware support, it's too ugly to support. So I don't want to :) > > The DTTA, according to FreeBSD, has a bug with > 64K transfers. But you > > said that worked fine, so... > > It wasn't written to. Ok -- Jens Axboe