From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1760053AbZBFRmZ (ORCPT ); Fri, 6 Feb 2009 12:42:25 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753628AbZBFRmO (ORCPT ); Fri, 6 Feb 2009 12:42:14 -0500 Received: from mx2.redhat.com ([66.187.237.31]:46544 "EHLO mx2.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753014AbZBFRmN (ORCPT ); Fri, 6 Feb 2009 12:42:13 -0500 Message-ID: <498C7671.1050309@redhat.com> Date: Fri, 06 Feb 2009 11:42:09 -0600 From: Eric Sandeen User-Agent: Thunderbird 2.0.0.19 (X11/20090105) MIME-Version: 1.0 To: Alexander Beregalov CC: "linux-next@vger.kernel.org" , linux-ext4@vger.kernel.org, LKML Subject: Re: next-20090206: deadlock on ext4 References: In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Alexander Beregalov wrote: > Hi > > I run dbench on ext4 on loop device. > > EXT4-fs: barriers enabled > kjournald2 starting: pid 2420, dev loop0:8, commit interval 5 seconds > EXT4 FS on loop0, internal journal on loop0:8 > EXT4-fs: delayed allocation enabled > EXT4-fs: file extents enabled > EXT4-fs: mballoc enabled > EXT4-fs: mounted filesystem loop0 with ordered data mode > JBD: barrier-based sync failed on loop0:8 - disabling barriers > > INFO: task pdflush:2339 blocked for more than 120 seconds. Looks a lot like a bug I filed: http://bugzilla.kernel.org/show_bug.cgi?id=12579 but I'm having trouble reproducing it, now. I'll try dbench! -Eric