for _, conf := range testConfigs {
			failOnErr := func(err error) {
				if err != nil {
					logger.Fatal(errSelfTestFailure, "%v: error on self-test [d:%d,p:%d]: %v. Unsafe to start server.\n", algo, conf[0], conf[1], err)
				}
			}
			e, err := NewErasure(context.Background(), int(conf[0]), int(conf[1]), blockSizeV2)
			failOnErr(err)
			encoded, err := e.EncodeData(GlobalContext, testData[:])

		NumVersions:      1,
		SuccessorModTime: time.Time{},
	}

	failOnErr(xl.AddVersion(fi))

	fi.VersionID = mustGetUUID()
	fi.DataDir = mustGetUUID()
	fi.Data = data2
	failOnErr(xl.AddVersion(fi))

	serialized, err := xl.AppendTo(nil)
	failOnErr(err)
	// Roundtrip data
	var xl2 xlMetaV2
	failOnErr(xl2.Load(serialized))

	// We should have one data entry
	list, err := xl2.data.list()

		data[i] = byte(rng.Int63() & 3)
	}
	failOnErr := func(err error) {
		if err != nil {
			logger.Fatal(errSelfTestFailure, "compress: error on self-test: %v", err)
		}
	}
	const skip = 2<<20 + 511
	r, _ := newS2CompressReader(bytes.NewBuffer(data), int64(len(data)), true)
	b, err := io.ReadAll(r)
	failOnErr(err)
	failOnErr(r.Close())
	// Decompression reader.