Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752048AbZIILDf (ORCPT ); Wed, 9 Sep 2009 07:03:35 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751899AbZIILDf (ORCPT ); Wed, 9 Sep 2009 07:03:35 -0400 Received: from mail-fx0-f217.google.com ([209.85.220.217]:50450 "EHLO mail-fx0-f217.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751607AbZIILDe (ORCPT ); Wed, 9 Sep 2009 07:03:34 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:date:message-id:subject:from:to:content-type; b=klXZeroOMo27OHCNTQlOraFcuCKdMVA2Go84WoU3IsuuHEwlOZIFmdS0sWAzM77IFS XsLVwlBETJP9BZzHTEw8T2wBsCTHpE5m/m6hpdiNL6AE1TX50ttj54/VLOcCGX4zdao7 um9K25SkMoCHSJkptOG1NAv6NqyTgdYZLc9eg= MIME-Version: 1.0 Date: Wed, 9 Sep 2009 07:03:36 -0400 Message-ID: <194f62550909090403x16e61cc1g3a23593085de0b@mail.gmail.com> Subject: Howto switch off ext4's delayed allocation? From: Clemens Eisserer To: linux-kernel@vger.kernel.org Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 819 Lines: 21 Hi, Every since switching to ext4, I suffer fromt he empty files problem after crashes. Since GEM/KMS was included, as well as the changes to the usb-serial subsystem I experience crashes from time to time. As far as I understand this is caused by delayed allocation. I really enjoy the performance benefits of ext4, and I know applications should be fixed - but having this problem seen with so many apps I doubt it will ever happen. (Kwrite, bash itself, umtsmon, ...). Is there any way to disable delayed allocation? (running 2.6.31rc8) Thank you in advance, Clemens -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/