diff mbox series

[v2] generic/648: dmerror must be unmounted

Message ID 20211024120512.2383377-1-zlang@redhat.com (mailing list archive)
State New, archived
Headers show
Series [v2] generic/648: dmerror must be unmounted | expand

Commit Message

Zorro Lang Oct. 24, 2021, 12:05 p.m. UTC
Sometimes g/648 fail to unmount dmerror with this error:

   umount: /mnt/xfstests/scratch: target is busy.

Even worse, it will cause all later test cases fail as:

  mount: bad usage
  Try 'mount --help' for more information.
  check: failed to mount $SCRATCH_DEV using specified options
  Interrupted!

So we shouldn't _fail directly if dmerror_unmount fails, use a while
loop to try to unmount it enough times.

Signed-off-by: Zorro Lang <zlang@redhat.com>
---

As Darrick's review point, V2 brings the "iteration XXX scratch
unmount failed" _fail back.

Thanks,
Zorro

 tests/generic/648 | 18 ++++++++++++++++--
 1 file changed, 16 insertions(+), 2 deletions(-)

Comments

Yang Xu (Fujitsu) Nov. 9, 2021, 3:59 a.m. UTC | #1
on 2021/10/24 20:05, Zorro Lang wrote:
> Sometimes g/648 fail to unmount dmerror with this error:
> 
>     umount: /mnt/xfstests/scratch: target is busy.
> 
> Even worse, it will cause all later test cases fail as:
> 
>    mount: bad usage
>    Try 'mount --help' for more information.
>    check: failed to mount $SCRATCH_DEV using specified options
>    Interrupted!
> 
> So we shouldn't _fail directly if dmerror_unmount fails, use a while
> loop to try to unmount it enough times.
I also met EBUSY error when testing other cases(I need to filter about
60 cases for this reason and do signle test for them) that using dmerror
or dmflakey.

Can we add a umount_api for dmerror/dmflakey that use a while loop to
umount during enough time in xfstest layer?

Best Regards
Yang Xu
> 
> Signed-off-by: Zorro Lang<zlang@redhat.com>
> ---
> 
> As Darrick's review point, V2 brings the "iteration XXX scratch
> unmount failed" _fail back.
> 
> Thanks,
> Zorro
> 
>   tests/generic/648 | 18 ++++++++++++++++--
>   1 file changed, 16 insertions(+), 2 deletions(-)
> 
> diff --git a/tests/generic/648 b/tests/generic/648
> index 83dd111d..e5c743c5 100755
> --- a/tests/generic/648
> +++ b/tests/generic/648
> @@ -104,7 +104,7 @@ for i in $(seq 1 $((25 * TIME_FACTOR)) ); do
>   		wait>  /dev/null 2>&1
>   		ps -e | grep fsstress>  /dev/null 2>&1
>   	done
> -	for ((i = 0; i<  10; i++)); do
> +	for ((j = 0; j<  10; j++)); do
>   		test -e "$snap_aliveflag" || break
>   		sleep 1
>   	done
> @@ -112,7 +112,21 @@ for i in $(seq 1 $((25 * TIME_FACTOR)) ); do
>   	# Mount again to replay log after loading working table, so we have a
>   	# consistent fs after test.
>   	$UMOUNT_PROG $loopmnt
> -	_dmerror_unmount || _fail "iteration $i scratch unmount failed"
> +	is_unmounted=1
> +	# We must unmount dmerror at here, or whole later testing will crash.
> +	# So try to umount enough times, before we have no choice.
> +	for ((j = 0; j<  100; j++)); do
> +		sleep 1
> +		_dmerror_unmount>  $tmp.unmount.err 2>&1
> +		if [ $? -eq 0 ];then
> +			is_unmounted=0
> +			break
> +		fi
> +	done
> +	if [ $is_unmounted -ne 0 ];then
> +		cat $tmp.unmount.err
> +		_fail "iteration $i scratch unmount failed"
> +	fi
>   	_dmerror_load_working_table
>   	if ! _dmerror_mount; then
>   		_metadump_dev $DMERROR_DEV $seqres.scratch.$i.md
Zorro Lang Nov. 9, 2021, 4:09 a.m. UTC | #2
On Sun, Oct 24, 2021 at 08:05:12PM +0800, Zorro Lang wrote:
> Sometimes g/648 fail to unmount dmerror with this error:
> 
>    umount: /mnt/xfstests/scratch: target is busy.
> 
> Even worse, it will cause all later test cases fail as:
> 
>   mount: bad usage
>   Try 'mount --help' for more information.
>   check: failed to mount $SCRATCH_DEV using specified options
>   Interrupted!
> 
> So we shouldn't _fail directly if dmerror_unmount fails, use a while
> loop to try to unmount it enough times.
> 
> Signed-off-by: Zorro Lang <zlang@redhat.com>
> ---

Ping, it's been 2+ weeks passed, any more review points about this?

Thanks,
Zorro

> 
> As Darrick's review point, V2 brings the "iteration XXX scratch
> unmount failed" _fail back.
> 
> Thanks,
> Zorro
> 
>  tests/generic/648 | 18 ++++++++++++++++--
>  1 file changed, 16 insertions(+), 2 deletions(-)
> 
> diff --git a/tests/generic/648 b/tests/generic/648
> index 83dd111d..e5c743c5 100755
> --- a/tests/generic/648
> +++ b/tests/generic/648
> @@ -104,7 +104,7 @@ for i in $(seq 1 $((25 * TIME_FACTOR)) ); do
>  		wait > /dev/null 2>&1
>  		ps -e | grep fsstress > /dev/null 2>&1
>  	done
> -	for ((i = 0; i < 10; i++)); do
> +	for ((j = 0; j < 10; j++)); do
>  		test -e "$snap_aliveflag" || break
>  		sleep 1
>  	done
> @@ -112,7 +112,21 @@ for i in $(seq 1 $((25 * TIME_FACTOR)) ); do
>  	# Mount again to replay log after loading working table, so we have a
>  	# consistent fs after test.
>  	$UMOUNT_PROG $loopmnt
> -	_dmerror_unmount || _fail "iteration $i scratch unmount failed"
> +	is_unmounted=1
> +	# We must unmount dmerror at here, or whole later testing will crash.
> +	# So try to umount enough times, before we have no choice.
> +	for ((j = 0; j < 100; j++)); do
> +		sleep 1
> +		_dmerror_unmount > $tmp.unmount.err 2>&1
> +		if [ $? -eq 0 ];then
> +			is_unmounted=0
> +			break
> +		fi
> +	done
> +	if [ $is_unmounted -ne 0 ];then
> +		cat $tmp.unmount.err
> +		_fail "iteration $i scratch unmount failed"
> +	fi
>  	_dmerror_load_working_table
>  	if ! _dmerror_mount; then
>  		_metadump_dev $DMERROR_DEV $seqres.scratch.$i.md
> -- 
> 2.31.1
>
Darrick J. Wong Nov. 9, 2021, 5:26 p.m. UTC | #3
On Sun, Oct 24, 2021 at 08:05:12PM +0800, Zorro Lang wrote:
> Sometimes g/648 fail to unmount dmerror with this error:
> 
>    umount: /mnt/xfstests/scratch: target is busy.
> 
> Even worse, it will cause all later test cases fail as:
> 
>   mount: bad usage
>   Try 'mount --help' for more information.
>   check: failed to mount $SCRATCH_DEV using specified options
>   Interrupted!
> 
> So we shouldn't _fail directly if dmerror_unmount fails, use a while
> loop to try to unmount it enough times.
> 
> Signed-off-by: Zorro Lang <zlang@redhat.com>

Looks good to me now,
Reviewed-by: Darrick J. Wong <djwong@kernel.org>

--D

> ---
> 
> As Darrick's review point, V2 brings the "iteration XXX scratch
> unmount failed" _fail back.
> 
> Thanks,
> Zorro
> 
>  tests/generic/648 | 18 ++++++++++++++++--
>  1 file changed, 16 insertions(+), 2 deletions(-)
> 
> diff --git a/tests/generic/648 b/tests/generic/648
> index 83dd111d..e5c743c5 100755
> --- a/tests/generic/648
> +++ b/tests/generic/648
> @@ -104,7 +104,7 @@ for i in $(seq 1 $((25 * TIME_FACTOR)) ); do
>  		wait > /dev/null 2>&1
>  		ps -e | grep fsstress > /dev/null 2>&1
>  	done
> -	for ((i = 0; i < 10; i++)); do
> +	for ((j = 0; j < 10; j++)); do
>  		test -e "$snap_aliveflag" || break
>  		sleep 1
>  	done
> @@ -112,7 +112,21 @@ for i in $(seq 1 $((25 * TIME_FACTOR)) ); do
>  	# Mount again to replay log after loading working table, so we have a
>  	# consistent fs after test.
>  	$UMOUNT_PROG $loopmnt
> -	_dmerror_unmount || _fail "iteration $i scratch unmount failed"
> +	is_unmounted=1
> +	# We must unmount dmerror at here, or whole later testing will crash.
> +	# So try to umount enough times, before we have no choice.
> +	for ((j = 0; j < 100; j++)); do
> +		sleep 1
> +		_dmerror_unmount > $tmp.unmount.err 2>&1
> +		if [ $? -eq 0 ];then
> +			is_unmounted=0
> +			break
> +		fi
> +	done
> +	if [ $is_unmounted -ne 0 ];then
> +		cat $tmp.unmount.err
> +		_fail "iteration $i scratch unmount failed"
> +	fi
>  	_dmerror_load_working_table
>  	if ! _dmerror_mount; then
>  		_metadump_dev $DMERROR_DEV $seqres.scratch.$i.md
> -- 
> 2.31.1
>
Eryu Guan Nov. 14, 2021, 10:44 a.m. UTC | #4
On Tue, Nov 09, 2021 at 12:09:13PM +0800, Zorro Lang wrote:
> On Sun, Oct 24, 2021 at 08:05:12PM +0800, Zorro Lang wrote:
> > Sometimes g/648 fail to unmount dmerror with this error:
> > 
> >    umount: /mnt/xfstests/scratch: target is busy.
> > 
> > Even worse, it will cause all later test cases fail as:
> > 
> >   mount: bad usage
> >   Try 'mount --help' for more information.
> >   check: failed to mount $SCRATCH_DEV using specified options
> >   Interrupted!
> > 
> > So we shouldn't _fail directly if dmerror_unmount fails, use a while
> > loop to try to unmount it enough times.
> > 
> > Signed-off-by: Zorro Lang <zlang@redhat.com>
> > ---
> 
> Ping, it's been 2+ weeks passed, any more review points about this?

Sorry, I lost it in my to-review queue.. Applied now.

Thanks,
Eryu
diff mbox series

Patch

diff --git a/tests/generic/648 b/tests/generic/648
index 83dd111d..e5c743c5 100755
--- a/tests/generic/648
+++ b/tests/generic/648
@@ -104,7 +104,7 @@  for i in $(seq 1 $((25 * TIME_FACTOR)) ); do
 		wait > /dev/null 2>&1
 		ps -e | grep fsstress > /dev/null 2>&1
 	done
-	for ((i = 0; i < 10; i++)); do
+	for ((j = 0; j < 10; j++)); do
 		test -e "$snap_aliveflag" || break
 		sleep 1
 	done
@@ -112,7 +112,21 @@  for i in $(seq 1 $((25 * TIME_FACTOR)) ); do
 	# Mount again to replay log after loading working table, so we have a
 	# consistent fs after test.
 	$UMOUNT_PROG $loopmnt
-	_dmerror_unmount || _fail "iteration $i scratch unmount failed"
+	is_unmounted=1
+	# We must unmount dmerror at here, or whole later testing will crash.
+	# So try to umount enough times, before we have no choice.
+	for ((j = 0; j < 100; j++)); do
+		sleep 1
+		_dmerror_unmount > $tmp.unmount.err 2>&1
+		if [ $? -eq 0 ];then
+			is_unmounted=0
+			break
+		fi
+	done
+	if [ $is_unmounted -ne 0 ];then
+		cat $tmp.unmount.err
+		_fail "iteration $i scratch unmount failed"
+	fi
 	_dmerror_load_working_table
 	if ! _dmerror_mount; then
 		_metadump_dev $DMERROR_DEV $seqres.scratch.$i.md