From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon@bugzilla.kernel.org Subject: [Bug 36262] ext3 umount: BUG: unable to handle kernel paging request Date: Thu, 2 Jun 2011 10:23:12 GMT Message-ID: <201106021023.p52ANCP7001604@demeter2.kernel.org> References: Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" To: linux-ext4@vger.kernel.org Return-path: Received: from demeter2.kernel.org ([140.211.167.42]:36102 "EHLO demeter2.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933312Ab1FBKXN (ORCPT ); Thu, 2 Jun 2011 06:23:13 -0400 Received: from demeter2.kernel.org (localhost.localdomain [127.0.0.1]) by demeter2.kernel.org (8.14.4/8.14.3) with ESMTP id p52ANDFi001605 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Thu, 2 Jun 2011 10:23:13 GMT In-Reply-To: Sender: linux-ext4-owner@vger.kernel.org List-ID: https://bugzilla.kernel.org/show_bug.cgi?id=36262 Jan Kara changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |axboe@kernel.dk --- Comment #3 from Jan Kara 2011-06-02 10:23:12 --- Hmm, by any chance, was the USB disk pulled before the umount actually run? Jens, it seems we have destroyed the BDI before the filesystem was properly unmounted (the oops is just NULL pointer dereference hidden by new percpu code) because fbc->counters == NULL for the BDI_RECLAIMABLE stats counter. -- Configure bugmail: https://bugzilla.kernel.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are watching the assignee of the bug.