Signed-off-by: Vladimir Sementsov-Ogievskiy <vsement...@virtuozzo.com> --- tests/qemu-iotests/249 | 69 ++++++++++++++++++++++++++++++++++++++ tests/qemu-iotests/249.out | 30 +++++++++++++++++ tests/qemu-iotests/group | 1 + 3 files changed, 100 insertions(+) create mode 100755 tests/qemu-iotests/249 create mode 100644 tests/qemu-iotests/249.out
diff --git a/tests/qemu-iotests/249 b/tests/qemu-iotests/249 new file mode 100755 index 0000000000..f0140461ad --- /dev/null +++ b/tests/qemu-iotests/249 @@ -0,0 +1,69 @@ +#!/usr/bin/env bash +# +# Test big discard in qcow2 shrink +# +# Copyright (c) 2019 Virtuozzo International GmbH. All rights reserved. +# +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program. If not, see <http://www.gnu.org/licenses/>. +# + +# creator +owner=vsement...@virtuozzo.com + +seq=`basename $0` +echo "QA output created by $seq" + +status=1 # failure is the default! + +_cleanup() +{ + _cleanup_test_img +} +trap "_cleanup; exit \$status" 0 1 2 3 15 + +# get standard environment, filters and checks +. ./common.rc +. ./common.filter + +# Requires backing files and .bdrv_change_backing_file support +_supported_fmt qcow2 +_supported_proto file +_supported_os Linux + +# This test checks bug in qcow2_process_discards, fixed by previous commit. +# The problem was that bdrv_pdiscard was called with uint64_t bytes parameter +# which was cropped to int. +# To reproduce bug we need to overflow int by one sequential discard, so we +# need size > 2G, bigger cluster size (as with default 64k we may have maximum +# of 512M sequential data, corresponding to one L1 entry, and we need to write +# at offset 0 at last, to prevent bdrv_co_truncate(bs->file) in +# qcow2_co_truncate to stole the whole effect of failed discard. + +size=2300M +IMGOPTS="cluster_size=1M" + +_make_test_img $size +$QEMU_IO -c 'write 100M 2000M' -c 'write 2100M 200M' \ + -c 'write 0 100M' "$TEST_IMG" | _filter_qemu_io + +$QEMU_IMG info "$TEST_IMG" | _filter_testdir + +$QEMU_IMG resize --shrink "$TEST_IMG" 50M + +$QEMU_IMG info "$TEST_IMG" | _filter_testdir + +# success, all done +echo "*** done" +rm -f $seq.full +status=0 diff --git a/tests/qemu-iotests/249.out b/tests/qemu-iotests/249.out new file mode 100644 index 0000000000..18bf7b2fb2 --- /dev/null +++ b/tests/qemu-iotests/249.out @@ -0,0 +1,30 @@ +QA output created by 249 +Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=2411724800 +wrote 2097152000/2097152000 bytes at offset 104857600 +1.953 GiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) +wrote 209715200/209715200 bytes at offset 2202009600 +200 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) +wrote 104857600/104857600 bytes at offset 0 +100 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) +image: TEST_DIR/t.qcow2 +file format: qcow2 +virtual size: 2.2G (2411724800 bytes) +disk size: 2.3G +cluster_size: 1048576 +Format specific information: + compat: 1.1 + lazy refcounts: false + refcount bits: 16 + corrupt: false +Image resized. +image: TEST_DIR/t.qcow2 +file format: qcow2 +virtual size: 50M (52428800 bytes) +disk size: 54M +cluster_size: 1048576 +Format specific information: + compat: 1.1 + lazy refcounts: false + refcount bits: 16 + corrupt: false +*** done diff --git a/tests/qemu-iotests/group b/tests/qemu-iotests/group index bae7718380..3a40dbfe69 100644 --- a/tests/qemu-iotests/group +++ b/tests/qemu-iotests/group @@ -248,3 +248,4 @@ 246 rw auto quick 247 rw auto quick 248 rw auto quick +249 rw auto -- 2.18.0