From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262052AbUECVoQ (ORCPT ); Mon, 3 May 2004 17:44:16 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S264039AbUECVoQ (ORCPT ); Mon, 3 May 2004 17:44:16 -0400 Received: from topper.inf.ed.ac.uk ([129.215.32.40]:37575 "EHLO topper.inf.ed.ac.uk") by vger.kernel.org with ESMTP id S262052AbUECVoI (ORCPT ); Mon, 3 May 2004 17:44:08 -0400 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Message-ID: <16534.48421.296794.467014@toolo.inf.ed.ac.uk> Date: Mon, 3 May 2004 22:44:05 +0100 From: Julian Bradfield To: linux-kernel@vger.kernel.org Subject: hang with 2.4.26 copying to loopback device X-Mailer: VM 7.18 under 21.4 (patch 13) "Rational FORTRAN" XEmacs Lucid Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org I'm running a vanilla 2.4.26 kernel (on a rather old distro, Mandrake 9.0). I have large (6GB) file on a remote NFS server (running 2.4.18), on which there is a file system that I'm mounting via loopback. When I copy to this looped back filesystem, I get a hang after a few megabytes. After the copy hangs, I move the cursor around and soon X freezes as well. I can, however, reboot via sysrq. I've seen several reports a couple of years ago of deadlocks in loopback, but nothing recently that I can find via searching. Is there anything currently known to be an issue, or should I start preparing a proper report?