From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755906Ab1EYThk (ORCPT ); Wed, 25 May 2011 15:37:40 -0400 Received: from mx2.fusionio.com ([66.114.96.31]:37470 "EHLO mx2.fusionio.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755319Ab1EYThi (ORCPT ); Wed, 25 May 2011 15:37:38 -0400 X-ASG-Debug-ID: 1306352257-01de28096b693d0001-xx1T2L X-Barracuda-Envelope-From: JAxboe@fusionio.com Message-ID: <4DDD5A7E.4030903@fusionio.com> Date: Wed, 25 May 2011 21:37:34 +0200 From: Jens Axboe MIME-Version: 1.0 To: Ondrej Zary CC: Tejun Heo , Kernel development list Subject: Re: [bisected] 2.6.39 breaks floppy References: <201105252116.37839.linux@rainbow-software.org> X-ASG-Orig-Subj: Re: [bisected] 2.6.39 breaks floppy In-Reply-To: <201105252116.37839.linux@rainbow-software.org> Content-Type: text/plain; charset="ISO-8859-1" Content-Transfer-Encoding: 7bit X-Barracuda-Connect: mail1.int.fusionio.com[10.101.1.21] X-Barracuda-Start-Time: 1306352257 X-Barracuda-URL: http://10.101.1.181:8000/cgi-mod/mark.cgi X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using global scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=9.0 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.64662 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 2011-05-25 21:16, Ondrej Zary wrote: > Hello, > floppy stopped working in 2.6.39 (confirmed on two machines). 2.6.38 worked > fine. > /dev/fd0 is created but does not work (mdir says: "No such device or address", > mount says "/dev/fd0 is not a valid block device"). dmesg shows no errors: > > Floppy drive(s): fd0 is 1.44M > FDC 0 is a post-1991 82077 > > Bisected it to 9fd097b14918875bd6f125ed699d7bbbba5893ee > (block: unexport DISK_EVENT_MEDIA_CHANGE for legacy/fringe drivers) > > Adding the removed line back to floppy.c fixes the problem. Tejun? -- Jens Axboe