167 lines
6.0 KiB
Diff
167 lines
6.0 KiB
Diff
From 7c6faae20638f58681df223e0ca44e0a6cb60d2d Mon Sep 17 00:00:00 2001
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From: Kevin Wolf <kwolf@redhat.com>
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Date: Thu, 12 Jan 2023 20:14:54 +0100
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Subject: [PATCH 4/4] qemu-iotests: Test qemu-img bitmap/commit exit code on
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error
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RH-Author: Kevin Wolf <kwolf@redhat.com>
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RH-MergeRequest: 251: qemu-img: Fix exit code for errors closing the image
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RH-Bugzilla: 2147617
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RH-Acked-by: Hanna Czenczek <hreitz@redhat.com>
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RH-Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
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RH-Acked-by: Stefano Garzarella <sgarzare@redhat.com>
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RH-Commit: [4/4] fb2f9de98ddd2ee1d745119e4f15272ef44e0aae
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This tests that when an error happens while writing back bitmaps to the
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image file in qcow2_inactivate(), 'qemu-img bitmap/commit' actually
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return an error value in their exit code instead of making the operation
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look successful to scripts.
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Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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Message-Id: <20230112191454.169353-5-kwolf@redhat.com>
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Reviewed-by: Hanna Czenczek <hreitz@redhat.com>
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Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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(cherry picked from commit 07a4e1f8e5418f36424cd57d5d061b090a238c65)
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Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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---
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.../qemu-iotests/tests/qemu-img-close-errors | 96 +++++++++++++++++++
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.../tests/qemu-img-close-errors.out | 23 +++++
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2 files changed, 119 insertions(+)
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create mode 100755 tests/qemu-iotests/tests/qemu-img-close-errors
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create mode 100644 tests/qemu-iotests/tests/qemu-img-close-errors.out
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diff --git a/tests/qemu-iotests/tests/qemu-img-close-errors b/tests/qemu-iotests/tests/qemu-img-close-errors
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new file mode 100755
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index 0000000000..50bfb6cfa2
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--- /dev/null
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+++ b/tests/qemu-iotests/tests/qemu-img-close-errors
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@@ -0,0 +1,96 @@
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+#!/usr/bin/env bash
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+# group: rw auto quick
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+#
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+# Check that errors while closing the image, in particular writing back dirty
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+# bitmaps, is correctly reported with a failing qemu-img exit code.
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+#
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+# Copyright (C) 2023 Red Hat, Inc.
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+#
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+# This program is free software; you can redistribute it and/or modify
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+# it under the terms of the GNU General Public License as published by
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+# the Free Software Foundation; either version 2 of the License, or
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+# (at your option) any later version.
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+#
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+# This program is distributed in the hope that it will be useful,
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+# but WITHOUT ANY WARRANTY; without even the implied warranty of
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+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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+# GNU General Public License for more details.
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+#
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+# You should have received a copy of the GNU General Public License
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+# along with this program. If not, see <http://www.gnu.org/licenses/>.
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+#
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+
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+# creator
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+owner=kwolf@redhat.com
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+
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+seq="$(basename $0)"
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+echo "QA output created by $seq"
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+
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+status=1 # failure is the default!
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+
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+_cleanup()
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+{
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+ _cleanup_test_img
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+}
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+trap "_cleanup; exit \$status" 0 1 2 3 15
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+
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+# get standard environment, filters and checks
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+cd ..
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+. ./common.rc
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+. ./common.filter
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+
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+_supported_fmt qcow2
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+_supported_proto file
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+_supported_os Linux
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+
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+size=1G
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+
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+# The error we are going to use is ENOSPC. Depending on how many bitmaps we
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+# create in the backing file (and therefore increase the used up space), we get
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+# failures in different places. With a low number, only merging the bitmap
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+# fails, whereas with a higher number, already 'qemu-img commit' fails.
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+for max_bitmap in 6 7; do
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+ echo
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+ echo "=== Test with $max_bitmap bitmaps ==="
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+
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+ TEST_IMG="$TEST_IMG.base" _make_test_img -q $size
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+ for i in $(seq 1 $max_bitmap); do
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+ $QEMU_IMG bitmap --add "$TEST_IMG.base" "stale-bitmap-$i"
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+ done
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+
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+ # Simulate a block device of 128 MB by resizing the image file accordingly
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+ # and then enforcing the size with the raw driver
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+ $QEMU_IO -f raw -c "truncate 128M" "$TEST_IMG.base"
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+ BASE_JSON='json:{
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+ "driver": "qcow2",
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+ "file": {
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+ "driver": "raw",
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+ "size": 134217728,
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+ "file": {
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+ "driver": "file",
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+ "filename":"'"$TEST_IMG.base"'"
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+ }
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+ }
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+ }'
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+
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+ _make_test_img -q -b "$BASE_JSON" -F $IMGFMT
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+ $QEMU_IMG bitmap --add "$TEST_IMG" "good-bitmap"
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+
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+ $QEMU_IO -c 'write 0 126m' "$TEST_IMG" | _filter_qemu_io
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+
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+ $QEMU_IMG commit -d "$TEST_IMG" 2>&1 | _filter_generated_node_ids
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+ echo "qemu-img commit exit code: ${PIPESTATUS[0]}"
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+
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+ $QEMU_IMG bitmap --add "$BASE_JSON" "good-bitmap"
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+ echo "qemu-img bitmap --add exit code: $?"
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+
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+ $QEMU_IMG bitmap --merge "good-bitmap" -b "$TEST_IMG" "$BASE_JSON" \
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+ "good-bitmap" 2>&1 | _filter_generated_node_ids
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+ echo "qemu-img bitmap --merge exit code: ${PIPESTATUS[0]}"
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+done
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+
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+# success, all done
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+echo "*** done"
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+rm -f $seq.full
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+status=0
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+
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diff --git a/tests/qemu-iotests/tests/qemu-img-close-errors.out b/tests/qemu-iotests/tests/qemu-img-close-errors.out
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new file mode 100644
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index 0000000000..1bfe88f176
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--- /dev/null
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+++ b/tests/qemu-iotests/tests/qemu-img-close-errors.out
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@@ -0,0 +1,23 @@
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+QA output created by qemu-img-close-errors
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+
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+=== Test with 6 bitmaps ===
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+wrote 132120576/132120576 bytes at offset 0
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+126 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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+Image committed.
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+qemu-img commit exit code: 0
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+qemu-img bitmap --add exit code: 0
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+qemu-img: Lost persistent bitmaps during inactivation of node 'NODE_NAME': Failed to write bitmap 'good-bitmap' to file: No space left on device
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+qemu-img: Error while closing the image: Invalid argument
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+qemu-img: Lost persistent bitmaps during inactivation of node 'NODE_NAME': Failed to write bitmap 'good-bitmap' to file: No space left on device
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+qemu-img bitmap --merge exit code: 1
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+
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+=== Test with 7 bitmaps ===
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+wrote 132120576/132120576 bytes at offset 0
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+126 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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+qemu-img: Lost persistent bitmaps during inactivation of node 'NODE_NAME': Failed to write bitmap 'stale-bitmap-7' to file: No space left on device
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+qemu-img: Lost persistent bitmaps during inactivation of node 'NODE_NAME': Failed to write bitmap 'stale-bitmap-7' to file: No space left on device
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+qemu-img: Error while closing the image: Invalid argument
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+qemu-img commit exit code: 1
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+qemu-img bitmap --add exit code: 0
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+qemu-img bitmap --merge exit code: 0
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+*** done
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--
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2.37.3
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