Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758327Ab1CCN6s (ORCPT ); Thu, 3 Mar 2011 08:58:48 -0500 Received: from mail-fx0-f46.google.com ([209.85.161.46]:61726 "EHLO mail-fx0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758314Ab1CCN6q (ORCPT ); Thu, 3 Mar 2011 08:58:46 -0500 DomainKey-Signature: a=rsa-sha1; c=nofws; d=googlemail.com; s=gamma; h=message-id:date:from:user-agent:mime-version:to:cc:subject :references:in-reply-to:content-type:content-transfer-encoding; b=MbxnfyoQRB6fgLqKOxNE5+W0U8wt+U8n67g+jeNoEEQDIKqwU1J4yUX7j+YWAWkfCl zXVlWrG1EBRNQEKvKvsHUuASEIn3wNvbH16OFVk5s52wKV8gCxaeAwHytq2ME/9L8Ozg 0VOtUXjoASqGSFqwzDwRMx/UqsCleXC6gP7kI= Message-ID: <4D6F9E77.3040505@gmail.com> Date: Thu, 03 Mar 2011 14:58:15 +0100 From: "=?ISO-8859-1?Q?Andreas_Bie=DFmann?=" User-Agent: Mozilla/5.0 (X11; U; Linux i686; de; rv:1.9.2.14) Gecko/20110221 Lightning/1.0b2 Thunderbird/3.1.8 MIME-Version: 1.0 To: =?ISO-8859-1?Q?Andreas_Bie=DFmann?= CC: "Jason A. Donenfeld" , Sergey Senozhatsky , linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org Subject: Re: [PATCH] fs-writeback: fix NULL pointer dereference in __mark_inode_dirty References: <1298906733-31427-1-git-send-email-biessmann@corscience.de> <20110228154314.GA4675@swordfish.minsk.epam.com> <4D6BC666.4010603@gmail.com> <20110228162909.GB4675@swordfish.minsk.epam.com> <4D6E016B.50600@gmail.com> In-Reply-To: <4D6E016B.50600@gmail.com> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1151 Lines: 30 Dear Jason A. Donenfeld, Am 02.03.2011 09:35, schrieb Andreas Bie?mann: > Dear Jason A. Donenfeld, > > Am 01.03.2011 10:00, schrieb Jason A. Donenfeld: >> Can you make an isolated test case to trigger this bug? > > in my case it is easily reproduceable. I have an SD-card in our embedded > device (AVR32 AP7000). Some random data is continuously written to an > FAT filesystem on that device. When you pull the card out of the slot > you trigger that NULL pointer dereference. > > I will try to reproduce that error on my workstation but this will need > some time. Maybe I can not hit that race on my quad core workstation but > I will give it a try. unfortunately I can not reproduce this error on my workstation. I tested an 35 in 1 USB card reader and a single USB stick. I will try to test on another architecture uniprocessor system (e.g. one of our ARM eval boards). regards Andreas Bie?mann -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/