From mboxrd@z Thu Jan 1 00:00:00 1970 From: "=?ISO-8859-1?Q?Andreas_Bie=DFmann?=" Subject: Re: [PATCH] fs-writeback: fix NULL pointer dereference in __mark_inode_dirty Date: Thu, 03 Mar 2011 14:58:15 +0100 Message-ID: <4D6F9E77.3040505@gmail.com> 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> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: QUOTED-PRINTABLE Cc: "Jason A. Donenfeld" , Sergey Senozhatsky , linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org To: =?ISO-8859-1?Q?Andreas_Bie=DFmann?= Return-path: 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 In-Reply-To: <4D6E016B.50600@gmail.com> Sender: linux-fsdevel-owner@vger.kernel.org List-ID: Dear Jason A. Donenfeld, Am 02.03.2011 09:35, schrieb Andreas Bie=DFmann: > Dear Jason A. Donenfeld, >=20 > Am 01.03.2011 10:00, schrieb Jason A. Donenfeld: >> Can you make an isolated test case to trigger this bug? >=20 > in my case it is easily reproduceable. I have an SD-card in our embed= ded > 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. >=20 > I will try to reproduce that error on my workstation but this will ne= ed > 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 teste= d an 35 in 1 USB card reader and a single USB stick. I will try to test on another architecture uniprocessor system (e.g. on= e of our ARM eval boards). regards Andreas Bie=DFmann -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel= " in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html