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qemu-iotests: Test qcow2 not leaking clusters on write error

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This adds a test for a temporary write failure, which simulates the
situation after werror=stop/enospc has stopped the VM. We shouldn't
leave leaked clusters behind in such cases.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
This commit is contained in:
Kevin Wolf 2018-06-28 17:18:51 +02:00
parent 8b24cd1415
commit ae376c6255
3 changed files with 33 additions and 0 deletions
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8
tests/qemu-iotests/026.out
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@ -675,4 +675,12 @@ write failed: No space left on device
96 leaked clusters were found on the image.
This means waste of disk space, but no harm to data.
=== Avoid cluster leaks after temporary failure ===
Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864
write failed: Input/output error
wrote 1048576/1048576 bytes at offset 0
1 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
No errors were found on the image.
*** done