iotests/026: Test EIO on preallocated zero cluster
Test what happens when writing data to a preallocated zero cluster, but the data write fails. Signed-off-by: Max Reitz <mreitz@redhat.com> Message-Id: <20200225143130.111267-3-mreitz@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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@ -218,6 +218,27 @@ _make_test_img 64M
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$QEMU_IO -c "write 0 1M" -c "write 0 1M" "$BLKDBG_TEST_IMG" | _filter_qemu_io
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$QEMU_IO -c "write 0 1M" -c "write 0 1M" "$BLKDBG_TEST_IMG" | _filter_qemu_io
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_check_test_img
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_check_test_img
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echo
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echo === Avoid freeing preallocated zero clusters on failure ===
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echo
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cat > "$TEST_DIR/blkdebug.conf" <<EOF
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[inject-error]
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event = "write_aio"
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errno = "5"
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once = "on"
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EOF
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_make_test_img $CLUSTER_SIZE
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# Create a preallocated zero cluster
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$QEMU_IO -c "write 0 $CLUSTER_SIZE" -c "write -z 0 $CLUSTER_SIZE" "$TEST_IMG" \
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| _filter_qemu_io
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# Try to overwrite it (prompting an I/O error from blkdebug), thus
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# triggering the alloc abort code
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$QEMU_IO -c "write 0 $CLUSTER_SIZE" "$BLKDBG_TEST_IMG" | _filter_qemu_io
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_check_test_img
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# success, all done
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# success, all done
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echo "*** done"
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echo "*** done"
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rm -f $seq.full
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rm -f $seq.full
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@ -643,4 +643,14 @@ write failed: Input/output error
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wrote 1048576/1048576 bytes at offset 0
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wrote 1048576/1048576 bytes at offset 0
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1 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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1 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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No errors were found on the image.
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No errors were found on the image.
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=== Avoid freeing preallocated zero clusters on failure ===
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Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1024
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wrote 1024/1024 bytes at offset 0
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1 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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wrote 1024/1024 bytes at offset 0
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1 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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write failed: Input/output error
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No errors were found on the image.
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*** done
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*** done
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@ -651,4 +651,14 @@ write failed: Input/output error
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wrote 1048576/1048576 bytes at offset 0
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wrote 1048576/1048576 bytes at offset 0
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1 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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1 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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No errors were found on the image.
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No errors were found on the image.
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=== Avoid freeing preallocated zero clusters on failure ===
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Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1024
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wrote 1024/1024 bytes at offset 0
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1 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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wrote 1024/1024 bytes at offset 0
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1 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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write failed: Input/output error
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No errors were found on the image.
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*** done
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*** done
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