From: Bai Shuwei Subject: device-mapper: remove ioctl failed: device or resource busy Date: Sat, 6 Feb 2010 11:32:35 +0800 Message-ID: Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 To: linux-crypto@vger.kernel.org Return-path: Received: from mail-pz0-f187.google.com ([209.85.222.187]:45223 "EHLO mail-pz0-f187.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751914Ab0BFDjN (ORCPT ); Fri, 5 Feb 2010 22:39:13 -0500 Received: by pzk17 with SMTP id 17so391093pzk.4 for ; Fri, 05 Feb 2010 19:39:13 -0800 (PST) Sender: linux-crypto-owner@vger.kernel.org List-ID: Hi, All: I port the xts-aes algorithm to FPGA board and use it to encrypt/decrypt the disc. i will get the bellow information But when excute the bellow commands cryptsetup luksFormat -c aes-xts-plain -s 256 /dev/loop0 or cryptsetup luksOpen /dev/loop0 test0 I get the bellow information .... device-mapper: remove ioctl failed: device or resource busy .... But others are all fine! I can format and mount test0. So i want to know why the message is printed? Thanks! Best REgards Bai Shuwei -- Love other people, as same as love yourself! Don't think all the time, do it by your hands! E-Mail: baishuwei@gmail.com