GlobalOffHeapMemory uses storage memory instead of execution memory

[JunhyungSong]

Backend

VL (Velox)

Bug description

GlobalOffHeapMemory uses storage memory instead of execution memory. Since it is used by plan validation and UnsafeColumnarBuildSideRelation, shouldn't it use execution memory? Is it intentional or a bug?

Gluten version

No response

Spark version

None

Spark configurations

No response

System information

No response

Relevant logs