From f65ef16bd01c14e252e262ec24ff3ac16e0e335d Mon Sep 17 00:00:00 2001 From: Max Reitz <mreitz@redhat.com> Date: Sat, 13 Jun 2015 16:21:59 +0200 Subject: [PATCH 05/42] iotests: Add test for image header overlap Message-id: <1434212556-3927-6-git-send-email-mreitz@redhat.com> Patchwork-id: 66024 O-Subject: [RHEL-7.2 qemu-kvm PATCH 05/42] iotests: Add test for image header overlap Bugzilla: 1129893 RH-Acked-by: Jeffrey Cody <jcody@redhat.com> RH-Acked-by: Fam Zheng <famz@redhat.com> RH-Acked-by: Stefan Hajnoczi <stefanha@redhat.com> BZ: 1129893 Add a test for an image with an unallocated image header; instead of an assertion, this should result in the image being marked corrupt. Signed-off-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com> (cherry picked from commit a42f8a3d05c5598cee893c9cf5ffeee48bacb83e) Signed-off-by: Max Reitz <mreitz@redhat.com> Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com> --- tests/qemu-iotests/060 | 9 +++++++++ tests/qemu-iotests/060.out | 8 ++++++++ 2 files changed, 17 insertions(+) diff --git a/tests/qemu-iotests/060 b/tests/qemu-iotests/060 index 2abd566..5180e23 100644 --- a/tests/qemu-iotests/060 +++ b/tests/qemu-iotests/060 @@ -164,6 +164,15 @@ wait_break 0 write 64k 64k resume 0" | $QEMU_IO | _filter_qemu_io +echo +echo "=== Testing unallocated image header ===" +echo +_make_test_img 64M +# Create L1/L2 +$QEMU_IO -c "$OPEN_RW" -c "write 0 64k" | _filter_qemu_io +poke_file "$TEST_IMG" "$rb_offset" "\x00\x00" +$QEMU_IO -c "$OPEN_RW" -c "write 64k 64k" | _filter_qemu_io + # success, all done echo "*** done" rm -f $seq.full diff --git a/tests/qemu-iotests/060.out b/tests/qemu-iotests/060.out index a517948..c27c952 100644 --- a/tests/qemu-iotests/060.out +++ b/tests/qemu-iotests/060.out @@ -93,4 +93,12 @@ blkdebug: Suspended request '0' write failed: Input/output error blkdebug: Resuming request '0' aio_write failed: No medium found + +=== Testing unallocated image header === + +Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864 +wrote 65536/65536 bytes at offset 0 +64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) +qcow2: Preventing invalid write on metadata (overlaps with qcow2_header); image marked as corrupt. +write failed: Input/output error *** done -- 1.8.3.1