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Date: Wed, 24 Jul 2002 15:19:04 -0400
From: Andrew Rodland <arodland@noln.com>
To: Kareem Dana <kareemy@earthlink.net>
Cc: linux-kernel@vger.kernel.org
Subject: Re: loop.o device busy after umount
Message-Id: <20020724151904.3d719dea.arodland@noln.com>
In-Reply-To: <20020724145919.01c79fce.kareemy@earthlink.net>
References: <20020724145919.01c79fce.kareemy@earthlink.net>
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On Wed, 24 Jul 2002 14:59:19 -0400
Kareem Dana <kareemy@earthlink.net> wrote:

> Hello,
> 
> I've noticed in kernel 2.4.18 that my loop module remains busy after I
> umount the device using it. For example
> 
> mount -t iso9660 -o loop file.iso /mnt
> * loop module gets loaded
> * lsmod shows "loop                    7952   1 (autoclean)"
> * ps ax shows [loop0] process
> 
> then
> umount /mnt
> lsmod shows the same thing - specifically the use of loop as 1 and the
> [loop0] process remains open. Trying to rmmod loop gives me a device
> or resource busy error.

For some reason or other, umount didn't losetup -d the device.

Try losetup -d /dev/loop0, and see whether it does what you want, or
returns some sort of error.

--hobbs
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