From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261505AbULTIUY (ORCPT ); Mon, 20 Dec 2004 03:20:24 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261494AbULTITm (ORCPT ); Mon, 20 Dec 2004 03:19:42 -0500 Received: from multivac.one-eyed-alien.net ([64.169.228.101]:5801 "EHLO multivac.one-eyed-alien.net") by vger.kernel.org with ESMTP id S261327AbULTILC (ORCPT ); Mon, 20 Dec 2004 03:11:02 -0500 Date: Mon, 20 Dec 2004 00:09:51 -0800 From: Matthew Dharm To: Pete Zaitcev Cc: "Randy.Dunlap" , Adrian Bunk , Greg KH , linux-usb-devel@lists.sourceforge.net, linux-kernel@vger.kernel.org Subject: Re: RFC: [2.6 patch] let BLK_DEV_UB depend on EMBEDDED Message-ID: <20041220080951.GA24728@one-eyed-alien.net> Mail-Followup-To: Pete Zaitcev , "Randy.Dunlap" , Adrian Bunk , Greg KH , linux-usb-devel@lists.sourceforge.net, linux-kernel@vger.kernel.org References: <20041220001644.GI21288@stusta.de> <20041220003146.GB11358@kroah.com> <20041220013542.GK21288@stusta.de> <20041219205104.5054a156@lembas.zaitcev.lan> <41C65EA0.7020805@osdl.org> <20041220062055.GA22120@one-eyed-alien.net> <20041219223723.3e861fc5@lembas.zaitcev.lan> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="C7zPtVaVf+AK4Oqc" Content-Disposition: inline In-Reply-To: <20041219223723.3e861fc5@lembas.zaitcev.lan> User-Agent: Mutt/1.4.1i Organization: One Eyed Alien Networks X-Copyright: (C) 2004 Matthew Dharm, all rights reserved. X-Message-Flag: Get a real e-mail client. http://www.mutt.org/ Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org --C7zPtVaVf+AK4Oqc Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Sun, Dec 19, 2004 at 10:37:23PM -0800, Pete Zaitcev wrote: > On Sun, 19 Dec 2004 22:20:55 -0800, Matthew Dharm wrote: >=20 > > I can tell you that this has turned into the single largest source of b= ug > > reports/complaints about usb-storage. Something has to be done. I just > > don't know what. >=20 > Is it that bad, really? Honestly, I could not imagine users can be so dum= b. 'There are more things in Heaven and Earth, Horatio...." Yes, users can be so dumb. Commonly, the exchange goes like this: USER: My device used to work in 2.6.7, and now it's busted. US: Please turn on debugging and send us the logs. USER: (sends dmesg which shows ub in use) US: Turn off CONFIG_BLK_DEV_UB USER: It works! You should make it more clear that UB breaks things... And that's the optimal case. Often times they cut the dmesg so we can't see what's wrong. And this usually takes 3 days for the entire exchange. > The option defaults to off. There is a warning in the Kconfig. And yet th= ey > first enable it and then complain about it. I don't know what to do about > it, either. The best idea I have is to hide CONFIG_BLK_DEV_UB behind CONFIG_EXPERIMENTAL. The next-best idea I have is to make UB print out some sort of warning message at startup. Neither of these ideas is very good, I'll admit. Matt --=20 Matthew Dharm Home: mdharm-usb@one-eyed-alien.= net=20 Maintainer, Linux USB Mass Storage Driver A: The most ironic oxymoron wins ... DP: "Microsoft Works" A: Uh, okay, you win. -- A.J. & Dust Puppy User Friendly, 1/18/1998 --C7zPtVaVf+AK4Oqc Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.1 (GNU/Linux) iD8DBQFBxojPIjReC7bSPZARAkcMAKC7z7RNYoTNQ8bWWrq+Q41nXptwmACeM0Ae ociUVCTqOuwXTbSfQYB+52U= =/IhF -----END PGP SIGNATURE----- --C7zPtVaVf+AK4Oqc--