From patchwork Tue Feb 24 07:20:34 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dave Chinner X-Patchwork-Id: 5870301 Return-Path: X-Original-To: patchwork-fstests@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id A476DBF440 for ; Tue, 24 Feb 2015 07:20:49 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id A597020664 for ; Tue, 24 Feb 2015 07:20:48 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 91C1C20671 for ; Tue, 24 Feb 2015 07:20:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752339AbbBXHUq (ORCPT ); Tue, 24 Feb 2015 02:20:46 -0500 Received: from ipmail05.adl6.internode.on.net ([150.101.137.143]:64690 "EHLO ipmail05.adl6.internode.on.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752331AbbBXHUp (ORCPT ); Tue, 24 Feb 2015 02:20:45 -0500 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: A2DQBwBBJexUPDkjLHlbgwaBLIY2qggBAQEBAQEGmWlEAQEBAQEBBQEBAQE4O4QQAQVWMwgYMTkDBxQZiC7TKYYHjiwFrEiBZwELMRyBZCoxgkMBAQE Received: from ppp121-44-35-57.lns20.syd4.internode.on.net (HELO dastard) ([121.44.35.57]) by ipmail05.adl6.internode.on.net with ESMTP; 24 Feb 2015 17:50:41 +1030 Received: from disappointment.disaster.area ([192.168.1.110] helo=disappointment) by dastard with esmtp (Exim 4.80) (envelope-from ) id 1YQ9nM-00033u-RO for fstests@vger.kernel.org; Tue, 24 Feb 2015 18:20:40 +1100 Received: from dave by disappointment with local (Exim 4.82_1-5b7a7c0-XX) (envelope-from ) id 1YQ9nM-0000rS-Px for fstests@vger.kernel.org; Tue, 24 Feb 2015 18:20:40 +1100 From: Dave Chinner To: fstests@vger.kernel.org Subject: [PATCH 3/4] xfs/049: umount -d fails when kernel wins teardown race Date: Tue, 24 Feb 2015 18:20:34 +1100 Message-Id: <1424762435-3237-4-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 2.0.0 In-Reply-To: <1424762435-3237-1-git-send-email-david@fromorbit.com> References: <1424762435-3237-1-git-send-email-david@fromorbit.com> Sender: fstests-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: fstests@vger.kernel.org X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Dave Chinner When /etc/mtab is linked to /proc/mounts and we are using mount time created loop devices (i.e. mount -o loop), the unmount can fail with this amazingly informative error message: umount: /mnt/scratch/test2: filesystem was unmounted, but mount(8) failed: Invalid argument What it actually means in this case is that the kernel tore down the loop device when the last reference went away, and it did it so fast that mount was not able to find it in /etc/mtab after the unmount syscall. Hence it could not find the loop device it was supposed to tear down and has a hissy fit. This is simple to fix: mount does not need to tear down the loop device as the kernel does it automatically. Remove the "-d" from the umount command, and the test passes again. There's quite a few other tests that also use umount -d - fix them as well. Signed-off-by: Dave Chinner --- tests/xfs/049 | 8 ++++---- tests/xfs/073 | 6 +++--- tests/xfs/078 | 4 ++-- tests/xfs/216 | 2 +- tests/xfs/217 | 2 +- tests/xfs/250 | 4 ++-- 6 files changed, 13 insertions(+), 13 deletions(-) diff --git a/tests/xfs/049 b/tests/xfs/049 index 04c2c75..8d4e074 100755 --- a/tests/xfs/049 +++ b/tests/xfs/049 @@ -29,8 +29,8 @@ echo "QA output created by $seq" _cleanup() { cd / - umount -d $SCRATCH_MNT/test2 > /dev/null 2>&1 - umount -d $SCRATCH_MNT/test > /dev/null 2>&1 + umount $SCRATCH_MNT/test2 > /dev/null 2>&1 + umount $SCRATCH_MNT/test > /dev/null 2>&1 rm -f $tmp.* if [ -w $seqres.full ] @@ -123,11 +123,11 @@ rm -rf $SCRATCH_MNT/test/* >> $seqres.full 2>&1 \ || _fail "!!! clean failed" _log "umount ext2 on xfs" -umount -d $SCRATCH_MNT/test2 >> $seqres.full 2>&1 \ +umount $SCRATCH_MNT/test2 >> $seqres.full 2>&1 \ || _fail "!!! umount ext2 failed" _log "umount xfs" -umount -d $SCRATCH_MNT/test >> $seqres.full 2>&1 \ +umount $SCRATCH_MNT/test >> $seqres.full 2>&1 \ || _fail "!!! umount xfs failed" echo "--- mounts at end (before cleanup)" >> $seqres.full diff --git a/tests/xfs/073 b/tests/xfs/073 index f955771..38ed2cb 100755 --- a/tests/xfs/073 +++ b/tests/xfs/073 @@ -41,9 +41,9 @@ _cleanup() { cd / umount $SCRATCH_MNT 2>/dev/null - umount -d $imgs.loop 2>/dev/null + umount $imgs.loop 2>/dev/null [ -d $imgs.loop ] && rmdir $imgs.loop - umount -d $imgs.source_dir 2>/dev/null + umount $imgs.source_dir 2>/dev/null [ -d $imgs.source_dir ] && rm -rf $imgs.source_dir rm -f $imgs.* $tmp.* /var/tmp/xfs_copy.log.* } @@ -119,7 +119,7 @@ _verify_copy() echo unmounting and removing new image umount $source_dir - umount -d $target_dir > /dev/null 2>&1 + umount $target_dir > /dev/null 2>&1 rm -f $target } diff --git a/tests/xfs/078 b/tests/xfs/078 index f859efc..d8cb919 100755 --- a/tests/xfs/078 +++ b/tests/xfs/078 @@ -36,7 +36,7 @@ _cleanup() { cd / rm -f $tmp.* - umount -d $LOOP_MNT 2>/dev/null + umount $LOOP_MNT 2>/dev/null rmdir $LOOP_MNT } @@ -97,7 +97,7 @@ _grow_loop() $XFS_GROWFS_PROG $LOOP_MNT 2>&1 | _filter_growfs 2>&1 echo "*** unmount" - umount -d $LOOP_MNT > /dev/null 2>&1 + umount $LOOP_MNT > /dev/null 2>&1 # Large grows takes forever to check.. if [ "$check" -gt "0" ] diff --git a/tests/xfs/216 b/tests/xfs/216 index 8513479..76f79ca 100755 --- a/tests/xfs/216 +++ b/tests/xfs/216 @@ -60,7 +60,7 @@ _do_mkfs() -d name=$LOOP_DEV,size=${i}g |grep log mount -o loop -t xfs $LOOP_DEV $LOOP_MNT echo "test write" > $LOOP_MNT/test - umount -d $LOOP_MNT > /dev/null 2>&1 + umount $LOOP_MNT > /dev/null 2>&1 done } # make large holey file diff --git a/tests/xfs/217 b/tests/xfs/217 index ab55a30..8aacdf9 100755 --- a/tests/xfs/217 +++ b/tests/xfs/217 @@ -62,7 +62,7 @@ _do_mkfs() -d name=$LOOP_DEV,size=${i}g |grep log mount -o loop -t xfs $LOOP_DEV $LOOP_MNT echo "test write" > $LOOP_MNT/test - umount -d $LOOP_MNT > /dev/null 2>&1 + umount $LOOP_MNT > /dev/null 2>&1 # punch out the previous blocks so that we keep the amount of # disk space the test requires down to a minimum. diff --git a/tests/xfs/250 b/tests/xfs/250 index c1622a4..0cdc382 100755 --- a/tests/xfs/250 +++ b/tests/xfs/250 @@ -33,7 +33,7 @@ trap "_cleanup; exit \$status" 0 1 2 3 15 _cleanup() { cd / - umount -d $LOOP_MNT 2>/dev/null + umount $LOOP_MNT 2>/dev/null rm -f $LOOP_DEV rmdir $LOOP_MNT } @@ -84,7 +84,7 @@ _test_loop() xfs_io -f -c "resvsp 0 $fsize" $LOOP_MNT/foo | _filter_io echo "*** unmount loop filesystem" - umount -d $LOOP_MNT > /dev/null 2>&1 + umount $LOOP_MNT > /dev/null 2>&1 echo "*** check loop filesystem" _check_xfs_filesystem $LOOP_DEV none none