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iotests: Fix stuck NBD process on 33

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Commit afe35cde6 added additional actions to test 33, but forgot
to reset the image between tests.  As a result, './check -nbd 33'
fails because the qemu-nbd process from the first half is still
occupying the port, preventing the second half from starting a
new qemu-nbd process.  Worse, the failure leaves a rogue qemu-nbd
process behind even after the test fails, which causes knock-on
failures to later tests that also want to start qemu-nbd.

Reported-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <20180312211156.452139-1-eblake@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
This commit is contained in:
Eric Blake 2018-03-12 16:11:56 -05:00
parent 026aaf47c0
commit 6eba9f01bb
1 changed files with 1 additions and 0 deletions
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tests/qemu-iotests/033
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@ -105,6 +105,7 @@ for align in 512 4k; do
done
done
_cleanup_test_img
# Trigger truncate that would shrink qcow2 L1 table, which is done by
# clearing one entry (8 bytes) with bdrv_co_pwrite_zeroes()