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# Date Author Comment
171d6431 11/27/2013 05:53 pm Max Reitz

qemu-iotests: Fix test 041

Performing multiple drive-mirror blockjobs on the same qemu instance
results in the image file used for the block device being replaced by
the newly mirrored file, which is not what we want.

Fix this by performing one dedicated test per sync mode....
c15badee 11/14/2013 02:09 pm Max Reitz

qemu-iotests: Extend 041 for unbacked mirroring

Add a new test case in file 041 for mirroring unbacked images in
"absolute-paths" mode. This should work, if possible, but most
importantly, qemu should never crash.

Signed-off-by: Max Reitz <>...
0dbe8a1b 06/28/2013 10:20 am Stefan Hajnoczi

qemu-iotests: extract wait_until_completed() into iotests.py

The 'drive-mirror' tests often issue 'block-job-complete' and wait for
the QMP completion event. Other types of block jobs also want to wait
for completion but they may not need to issue 'block-job-complete'....
ecc1c88e 06/04/2013 01:11 pm Stefan Hajnoczi

qemu-iotests: make assert_no_active_block_jobs() common

Tests 030 and 041 both use query-block-jobs to check whether any block
jobs are active. Make this code common so that 'drive-backup' and other
new feature tests will be able to reuse it.

Suggested-by: Kevin Wolf <>...
2575fe16 06/04/2013 01:11 pm Stefan Hajnoczi

qemu-iotests: make cancel_and_wait() common

The cancel_and_wait() function has been duplicated in 030 and 041. Move
it into iotests.py and let it return the event so tests can perform
additional asserts.

Note that 041's cancel_and_wait(wait_ready=True) is replaced by...
3a3918c3 06/04/2013 01:11 pm Stefan Hajnoczi

qemu-iotests: make compare_images() common

The iotests.compare_images() function returns True if two image files
have the identical data. Previously this was implemented by converting
images to raw and then comparing their contents using Python. Since
"qemu-img compare" is now available and is more efficient, switch to it....
2499a096 06/04/2013 01:11 pm Stefan Hajnoczi

qemu-iotests: make create_image() common

Both 030 and 041 use create_image(). Move it to iotests.py.

Also drop ImageStreamingTestCase since the class now has no methods.

Suggested-by: Kevin Wolf <>
Signed-off-by: Stefan Hajnoczi <>...
a04eca10 02/01/2013 03:58 pm Vishvananda Ishaya

block: Adds mirroring tests for resized images

This test verifies two mirroring issues are fixed with resized images:

  • sync='top' creates an image that is the proper size
  • sync='full' doesn't cause an assertion failure and crash qemu
    Reviewed-by: Paolo Bonzini <>...
08e4ed6c 01/25/2013 07:18 pm Paolo Bonzini

mirror: add buf-size argument to drive-mirror

This makes sense when the next commit starts using the extra buffer space
to perform many I/O operations asynchronously.

Signed-off-by: Paolo Bonzini <>
Signed-off-by: Kevin Wolf <>
b812f671 01/25/2013 07:18 pm Paolo Bonzini

mirror: perform COW if the cluster size is bigger than the granularity

When mirroring runs, the backing files for the target may not yet be
ready. However, this means that a copy-on-write operation on the target
would fill the missing sectors with zeros. Copy-on-write only happens...
44c7ca5e 10/24/2012 11:26 am Paolo Bonzini

qemu-iotests: add mirroring test case

Signed-off-by: Paolo Bonzini <>
Signed-off-by: Kevin Wolf <>
9dfa9f59 10/24/2012 11:26 am Paolo Bonzini

qemu-iotests: add testcases for mirroring on-source-error/on-target-error

The new options are tested with blkdebug on both the source and the
target.

Signed-off-by: Paolo Bonzini <>
Signed-off-by: Kevin Wolf <>