From: Fredrik Andersson Subject: Re: Fwd: Ext4 bug with fallocate Date: Tue, 27 Oct 2009 09:17:03 +0100 Message-ID: References: <4AE67A1B.8060704@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: QUOTED-PRINTABLE Cc: linux-ext4@vger.kernel.org To: Eric Sandeen Return-path: Received: from mail-ew0-f208.google.com ([209.85.219.208]:46604 "EHLO mail-ew0-f208.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932110AbZJ0IQ7 convert rfc822-to-8bit (ORCPT ); Tue, 27 Oct 2009 04:16:59 -0400 Received: by ewy4 with SMTP id 4so4391676ewy.37 for ; Tue, 27 Oct 2009 01:17:03 -0700 (PDT) In-Reply-To: <4AE67A1B.8060704@redhat.com> Sender: linux-ext4-owner@vger.kernel.org List-ID: > Not trying to ignore you, but trying to sort out some corruption issu= es that > I'm afraid I have to rank higher than a hang for now... I understand. Good to know someone is thinking about it anyway :-) > > From the traces, things are hung up on the i_data_sem; several pdflus= hes > want it for read in ext4_get_blocks_wrap, and drbdmakes presumably ha= ve it > downed for write in ext4_ext_truncate. =A0I'm not immediately seeing = the > deadlock tonight, but then it's getting late... > > Is the application that's triggering this something you can share? > Sorry, I can't provide source code for these applications. But drdbmake does what is described above: Preallocates a very big chunk on disk and then truncates it to its final length once it's done. Please let me know if you need more details. /Fredrik -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" i= n the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html