From mboxrd@z Thu Jan 1 00:00:00 1970 From: Borislav Petkov Subject: Re: 2.9.29.2: ide-tape: panic when probing device at boot Date: Mon, 18 May 2009 15:18:13 +0200 Message-ID: <9ea470500905180618t3785d5e1s880c395896b9ba15@mail.gmail.com> References: <20090509161801.GB5749@liondog.tnic> <200905180532.n4I5Wxa1031243@turbo.physics.adelaide.edu.au> <20090518063007.GA7818@liondog.tnic> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: Received: from mail-fx0-f158.google.com ([209.85.220.158]:59979 "EHLO mail-fx0-f158.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753157AbZERNSO convert rfc822-to-8bit (ORCPT ); Mon, 18 May 2009 09:18:14 -0400 In-Reply-To: <20090518063007.GA7818@liondog.tnic> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: Jonathan Woithe Cc: Bartlomiej Zolnierkiewicz , linux-kernel@vger.kernel.org, linux-ide@vger.kernel.org, Tejun Heo Small correction: >> > > Should I just push commit 1e75540ec5202cae63cd238c86bd880e3d4965= 46 >> > > ("ide-tape: remove back-to-back REQUEST_SENSE detection") to Lin= us >> > > or there is more needed to bring ide-tape to the world of living= ? >> > >> > The oops will probably fixed the above commit. =A0I don't have muc= h idea >> > about the DMA problem on 2.6.24 tho. =A0But even with the above co= mmit >> > fixed, I doubt it would work. =A0The buffer allocation code is bro= ken >> > and reliably triggered OOM on my test machine. =A0While trying to = locate >> > the bug, I realized the complex code didn't do much good to begin = with >> > and just stripped it down, so I didn't actually tracked down the >> > actual bug && the patch to simplify buffer management is way too l= arge >> > for 2.6.29, so unless someone is willing to hunt down the bug just= for >> > 2.6.29, we're kind of stuck. =A0:-( >> >> So I take it that 2.6.30 (or one of the RCs) is worth trying (at lea= st in so >> far as preventing the oops on boot)? > > You could try 30-rc6 which runs pretty stable on my machines. It has = the > patch mentioned above in it. the patch mentioned above got actually merged after 30-rc6 so you could= try 30-rc7 - if there will be one - or a current linux-next release. Thanks. --=20 Regards/Gruss, Boris