hsiang-c commented on code in PR #2122:
URL: https://github.com/apache/datafusion-comet/pull/2122#discussion_r2267838733
##########
spark/src/main/java/org/apache/spark/shuffle/comet/CometUnifiedShuffleMemoryAllocator.java:
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@@ -58,6 +58,11 @@ public synchronized MemoryBlock allocate(long required) {
}
public synchronized void free(MemoryBlock block) {
+ if (block.pageNumber == MemoryBlock.FREED_IN_ALLOCATOR_PAGE_NUMBER
Review Comment:
Do we have to check `MemoryBlock.NO_PAGE_NUMBER` so that TMM's `freePage()`
doesn't complain?
```java
// `org.apache.spark.memory.TaskMemoryManager`
public void freePage(MemoryBlock page, MemoryConsumer consumer) {
assert (page.pageNumber != MemoryBlock.NO_PAGE_NUMBER) :
"Called freePage() on memory that wasn't allocated with
allocatePage()";
```
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