Statistics
| Branch: | Revision:

root / tests / qemu-iotests / 031.out @ 9a05feab

History | View | Annotate | Download (5.4 kB)

# Date Author Comment
69c98726 08/30/2013 04:48 pm Max Reitz

qcow2: Add corrupt bit

This adds an incompatible bit indicating corruption to qcow2. Any image
with this bit set may not be written to unless for repairing (and
subsequently clearing the bit if the repair has been successful).

Signed-off-by: Max Reitz <>...
c61d0004 08/06/2012 11:39 pm Stefan Hajnoczi

qcow2: introduce dirty bit

This patch adds an incompatible feature bit to mark images that have not
been closed cleanly. When a dirty image file is opened a consistency
check and repair is performed.

Update qemu-iotests 031 and 036 since the extension header size changes...
bfe8043e 08/06/2012 11:39 pm Stefan Hajnoczi

qcow2: implement lazy refcounts

Lazy refcounts is a performance optimization for qcow2 that postpones
refcount metadata updates and instead marks the image dirty. In the
case of crash or power failure the image will be left in a dirty state
and repaired next time it is opened....
1042ec94 04/20/2012 04:57 pm Kevin Wolf

qemu-iotests: Fix test 031 for qcow2 v3 support

qcow2.py must be updated to work with version 3 images at all, the
output has changed since the feature table extension has been added, and
version 2 and version 3 images can't possibly have the same test output....
7299550b 04/19/2012 04:48 pm Kevin Wolf

qemu-iotests: Always filter cluster_size out in _make_test_img

Some image formats do have a cluster size, others don't, but there are
tests that work with both sets of images and currently we get failures
because the qemu-img create output doesn't mention the cluster size for...
f394f1fe 04/05/2012 03:54 pm Kevin Wolf

qemu-iotests: Test unknown qcow2 header extensions

The immportant thing here is that header extensions don't get silently
dropped when the header is rewritten, e.g. during a rebase.

Signed-off-by: Kevin Wolf <>