From: "Aneesh Kumar K.V" Subject: Delayed alloc bug Date: Wed, 03 Oct 2007 12:46:35 +0530 Message-ID: <470341D3.7020409@linux.vnet.ibm.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit To: Alex Tomas , linux-ext4 Return-path: Received: from E23SMTP05.au.ibm.com ([202.81.18.174]:47356 "EHLO e23smtp05.au.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751412AbXJCHRD (ORCPT ); Wed, 3 Oct 2007 03:17:03 -0400 Received: from sd0109e.au.ibm.com (d23rh905.au.ibm.com [202.81.18.225]) by e23smtp05.au.ibm.com (8.13.1/8.13.1) with ESMTP id l937H263014614 for ; Wed, 3 Oct 2007 17:17:02 +1000 Received: from d23av04.au.ibm.com (d23av04.au.ibm.com [9.190.235.139]) by sd0109e.au.ibm.com (8.13.8/8.13.8/NCO v8.5) with ESMTP id l937KZXf249226 for ; Wed, 3 Oct 2007 17:20:35 +1000 Received: from d23av04.au.ibm.com (loopback [127.0.0.1]) by d23av04.au.ibm.com (8.12.11.20060308/8.13.3) with ESMTP id l937Gj7D009346 for ; Wed, 3 Oct 2007 17:16:45 +1000 Sender: linux-ext4-owner@vger.kernel.org List-Id: linux-ext4.vger.kernel.org We should actually get this error dd: writing to `myfile5': No space left on device root@x300-qemu-image:~# mount /dev/hdc -t ext4dev -o delalloc,data=writeback /ext4 root@x300-qemu-image:/ext4# df -h . Filesystem Size Used Avail Use% Mounted on /dev/hdc 49M 46M 94K 100% /ext4 root@x300-qemu-image:/ext4# root@x300-qemu-image:/ext4# root@x300-qemu-image:/ext4# root@x300-qemu-image:/ext4# dd if=/dev/zero of=myfile 34188+0 records in 34187+0 records out 17503744 bytes (18 MB) copied, 11.2724 seconds, 1.6 MB/s root@x300-qemu-image:/ext4# df -h . Filesystem Size Used Avail Use% Mounted on /dev/hdc 49M 49M 0 100% /ext4 root@x300-qemu-image:/ext4# dd if=/dev/zero of=myfile5 49777+0 records in 49777+0 records out 25485824 bytes (25 MB) copied, 19.7667 seconds, 1.3 MB/s root@x300-qemu-image:/ext4# df -h . Filesystem Size Used Avail Use% Mounted on /dev/hdc 49M 49M 0 100% /ext4 root@x300-qemu-image:/ext4#