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20:yZ9zfkRDhbqyArpErX6UYyXETmqFzpOo7K9DYZRvQ9MCGNzCKXiB3DNOnqdWMc+WQTDxDIBKTcLna3xrJqre+W5TgX38RzIJBRlsIlo1jv8MG/q9Dy0+q9e1r9uQC13Nqy9p47vFBj/3h2UZ5pp0ZDPLqUju/YCOtwz+QO5CbHg= X-OriginatorOrg: virtuozzo.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 19 May 2017 09:35:24.4935 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-Transport-CrossTenantHeadersStamped: AM5PR0801MB1988 X-detected-operating-system: by eggs.gnu.org: Windows 7 or 8 [fuzzy] X-Received-From: 104.47.2.106 Subject: [Qemu-devel] [PATCH v1 13/13] iotest 046: test simultaneous cluster write error case X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: kwolf@redhat.com, Anton Nefedov , den@virtuozzo.com, mreitz@redhat.com Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" Signed-off-by: Anton Nefedov --- tests/qemu-iotests/046 | 38 +++++++++++++++++++++++++++++++++++++- tests/qemu-iotests/046.out | 23 +++++++++++++++++++++++ 2 files changed, 60 insertions(+), 1 deletion(-) diff --git a/tests/qemu-iotests/046 b/tests/qemu-iotests/046 index f2ebecf..c210b55 100755 --- a/tests/qemu-iotests/046 +++ b/tests/qemu-iotests/046 @@ -29,7 +29,8 @@ status=1 # failure is the default! _cleanup() { - _cleanup_test_img + _cleanup_test_img + rm "$TEST_DIR/blkdebug.conf" } trap "_cleanup; exit \$status" 0 1 2 3 15 @@ -188,6 +189,37 @@ overlay_io | $QEMU_IO blkdebug::"$TEST_IMG" | _filter_qemu_io |\ sed -e 's/bytes at offset [0-9]*/bytes at offset XXX/g' echo +echo "== Concurrency error case ==" + +# 1. 1st request allocated the cluster, stop before it writes and updates L2 +# 2. 2nd request starts at the same cluster must complete write and start +# waiting for the 1st to update L2 +# 3. Resume the 1st request to make it fail (injected error) +# 4. 2nd request must wake and fail as well +# 1 cluster will end up leaked +cat > "$TEST_DIR/blkdebug.conf" <