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bh=YBehD8Sh7kAqTspoSET6GnAY59GUzI6vERZ/x0WwPyI=; b=VfTEnY6sTsX67MKVOBYqLFPuHVYjMKCKMIjU1FdNzQ5eLTSzY0tJ5ebCgRD+ckp0/mtEah S8oYkWfTaeL/NYi3ZnadMcBPPsGpuPg/Lcg/H/2DTI+jtkkLFCkgJRG8viRQaHOKDv2tv+ y+BeeyFxG5RYCwDO6cs2aA9rwI/IOac= X-MC-Unique: e077iFJLMWGI0M3LjgVv3Q-1 From: Max Reitz To: qemu-block@nongnu.org Subject: [PULL 2/3] iotests/028: Add test for cross-base-EOF reads Date: Tue, 28 Jul 2020 15:48:39 +0200 Message-Id: <20200728134840.1557546-3-mreitz@redhat.com> In-Reply-To: <20200728134840.1557546-1-mreitz@redhat.com> References: <20200728134840.1557546-1-mreitz@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.84 on 10.5.11.23 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=207.211.31.81; envelope-from=mreitz@redhat.com; helo=us-smtp-delivery-1.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/07/28 00:06:48 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] X-Spam_score_int: -30 X-Spam_score: -3.1 X-Spam_bar: --- X-Spam_report: (-3.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-1, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H3=-0.01, RCVD_IN_MSPIKE_WL=-0.01, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=unavailable autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Kevin Wolf , Peter Maydell , qemu-devel@nongnu.org, Max Reitz Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Type: text/plain; charset="utf-8" Signed-off-by: Max Reitz Message-Id: <20200728120806.265916-3-mreitz@redhat.com> Reviewed-by: Vladimir Sementsov-Ogievskiy Tested-by: Vladimir Sementsov-Ogievskiy Tested-by: Claudio Fontana --- tests/qemu-iotests/028 | 19 +++++++++++++++++++ tests/qemu-iotests/028.out | 11 +++++++++++ 2 files changed, 30 insertions(+) diff --git a/tests/qemu-iotests/028 b/tests/qemu-iotests/028 index 5d043cef92..6dd3ae09a3 100755 --- a/tests/qemu-iotests/028 +++ b/tests/qemu-iotests/028 @@ -142,6 +142,25 @@ TEST_IMG=3D"${TEST_IMG}.copy" io_zero readv $(( offset= + 32 * 1024 )) 512 1024 32 =20 _check_test_img =20 +echo +echo '=3D=3D=3D Reading across backing EOF in one operation =3D=3D=3D' +echo + +# Use a cluster boundary as the base end here +base_size=3D$((3 * 1024 * 1024 * 1024)) + +TEST_IMG=3D"$TEST_IMG.base" _make_test_img $base_size +_make_test_img -b "$TEST_IMG.base" -F $IMGFMT $image_size + +# Write 16 times 42 at the end of the base image +$QEMU_IO -c "write -P 42 $((base_size - 16)) 16" "$TEST_IMG.base" \ + | _filter_qemu_io + +# Read 32 bytes across the base EOF from the top; +# should be 16 times 0x2a, then 16 times 0x00 +$QEMU_IO -c "read -v $((base_size - 16)) 32" "$TEST_IMG" \ + | _filter_qemu_io + # success, all done echo "*** done" rm -f $seq.full diff --git a/tests/qemu-iotests/028.out b/tests/qemu-iotests/028.out index 12f82c6a6c..5a68de5c46 100644 --- a/tests/qemu-iotests/028.out +++ b/tests/qemu-iotests/028.out @@ -730,4 +730,15 @@ read 512/512 bytes at offset 3221257728 read 512/512 bytes at offset 3221258752 512 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) No errors were found on the image. + +=3D=3D=3D Reading across backing EOF in one operation =3D=3D=3D + +Formatting 'TEST_DIR/t.IMGFMT.base', fmt=3DIMGFMT size=3D3221225472 +Formatting 'TEST_DIR/t.IMGFMT', fmt=3DIMGFMT size=3D4294968832 backing_fil= e=3DTEST_DIR/t.IMGFMT.base backing_fmt=3DIMGFMT +wrote 16/16 bytes at offset 3221225456 +16 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) +bffffff0: 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a ..............= .. +c0000000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ..............= .. +read 32/32 bytes at offset 3221225456 +32 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) *** done --=20 2.26.2