From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tejun Heo Subject: Re: sata dvd not detected on jmicron with some kernel-configurations. Date: Mon, 26 Mar 2007 19:54:23 +0900 Message-ID: <4607A65F.2060408@gmail.com> References: <20070322130445.GA15539@useful.obra.se> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: Received: from wx-out-0506.google.com ([66.249.82.238]:7110 "EHLO wx-out-0506.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S965042AbXCZKy3 (ORCPT ); Mon, 26 Mar 2007 06:54:29 -0400 Received: by wx-out-0506.google.com with SMTP id h31so2065334wxd for ; Mon, 26 Mar 2007 03:54:28 -0700 (PDT) In-Reply-To: <20070322130445.GA15539@useful.obra.se> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: Fredrik Rinnestam Cc: linux-ide@vger.kernel.org Fredrik Rinnestam wrote: > When booting a gnu/linux distribution's install-cd i noticed that the included > [1]kernel (2.6.20.3) would not probe/find my jmicron connected sata-dvd. Which distribution are you using? > My own [2]kernel-configuration finds the drive just fine but the distributor's > kernel with all sorts of drivers built-in wont. If i connect the dvd-rom to my > ich8r controller, both kernels finds it just fine. > > The jmicron controller is configured as AHCI in the systems bios and AHCI is > built-in in both kernels along with scsi-cdrom support. > > [1] http://fredrik.obra.se/linux-2.6.20.3.config > [2] http://fredrik.obra.se/2.6.20.3.config > > Any suggestions on what breaks it? JMB controllers use the same PCI ID for AHCI and SFF parts and causes some distribution initrd's fail to load proper module for it. 2.6.21 will match PCI class instead of PCI function number which should be much easier on those inird's. So, not really a kernel bug. Please report it to maintainers of your distribution. -- tejun