From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon@bugzilla.kernel.org Subject: [Bug 113041] mbcache NULL pointer dereference Date: Wed, 27 Apr 2016 21:35:28 +0000 Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit To: linux-ext4@vger.kernel.org Return-path: Received: from mail.kernel.org ([198.145.29.136]:55009 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753452AbcD0Vfc (ORCPT ); Wed, 27 Apr 2016 17:35:32 -0400 Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 777C02025A for ; Wed, 27 Apr 2016 21:35:30 +0000 (UTC) Received: from bugzilla2.web.kernel.org (bugzilla2.web.kernel.org [172.20.200.52]) by mail.kernel.org (Postfix) with ESMTP id 46F7620268 for ; Wed, 27 Apr 2016 21:35:28 +0000 (UTC) In-Reply-To: Sender: linux-ext4-owner@vger.kernel.org List-ID: https://bugzilla.kernel.org/show_bug.cgi?id=113041 Theodore Tso changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |tytso@mit.edu --- Comment #7 from Theodore Tso --- The comm field doesn't really matter all that much. The crash is in the mbcache slab shrinker, which gets called from the VM when the system us under memory pressure. It looks like the crash is in the extended attribute cache which is in turn triggered by SELinux. (As far as I know Cassandra doesn't use extended attributes.) Note that the 4.3.x kernel is not a long-term supported kernel, and it's no longer automatically getting bug fixes ported to it, at least not in the upstream. If CoreOS is providing their own security updates, then you should really ask them for support because this would be a distro-kernel that has changes not seen or supported by usptream developers. -- You are receiving this mail because: You are watching the assignee of the bug.