Github user cloud-fan commented on a diff in the pull request:
https://github.com/apache/spark/pull/19222#discussion_r177294950
--- Diff:
common/unsafe/src/main/java/org/apache/spark/unsafe/array/LongArray.java ---
@@ -69,8 +64,9 @@ public long size() {
* Fill this all with 0L.
*/
public void zeroOut() {
+ long baseOffset = memory.getBaseOffset();
for (long off = baseOffset; off < baseOffset + length * WIDTH; off +=
WIDTH) {
--- End diff --
the `off` should starts with 0.
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