From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Fri, 2 Mar 2001 10:08:44 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Fri, 2 Mar 2001 10:08:35 -0500 Received: from ns.virtualhost.dk ([195.184.98.160]:39949 "EHLO virtualhost.dk") by vger.kernel.org with ESMTP id ; Fri, 2 Mar 2001 10:08:15 -0500 Date: Fri, 2 Mar 2001 16:07:59 +0100 From: Jens Axboe To: Mario Hermann Cc: "linux-kernel@vger.kernel.org" Subject: Re: report bug: System reboots when accessing a loop-device over a second loop-device with 2.4.2-ac7 Message-ID: <20010302160759.G408@suse.de> In-Reply-To: <3A9E66BB.70FB0C75@eikon.tum.de> <20010301172145.T21518@suse.de> <3A9FADAB.F37E5449@eikon.tum.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <3A9FADAB.F37E5449@eikon.tum.de>; from ario@eikon.tum.de on Fri, Mar 02, 2001 at 03:26:51PM +0100 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Mar 02 2001, Mario Hermann wrote: > > > I tried the following commands with 2.4.2-ac7: > > > > > > losetup /dev/loop0 test.dat > > > losetup /dev/loop1 /dev/loop0 > > > mke2fs /dev/loop1 > > > > > > My System reboots immediatly. I tried it with 2.4.2-ac4,ac5 too -> same > > > effect. > > > > > > With 2.4.2 it hangs immediatly. > > > > This should make it work again. > > There is another small bug with the loop over loop problem. Now it works > fine for > files but not for Devices: > > losetup /dev/loop0 /dev/sr1 > losetup /dev/loop1 /dev/loop0 > dd if=/dev/loop1 of=test.dat bs=2048 count=1024 > > Makes dd hang. (BTW: /dev/sr1 is a CD-ROM) > > Tried the same on /dev/hda1, /dev/sda1 with 2.4.2-ac7-your_patch and > with 2.4.2-ac8. I must admit that I haven't tried loop-over-loop at all really, I'll make a note to look at this tonight. > BTW: Did extensiv testing with and without the crypto patches. And all > other tests worked fine! :-) Great. -- Jens Axboe