diff --git a/src/gausskernel/process/threadpool/threadpool_stream.cpp b/src/gausskernel/process/threadpool/threadpool_stream.cpp
index 22012f5997d20af0099cfe976167f20e9ceaa8f7..2d8a70116ca19d56a0c07b7203b9676872dfa127 100644
--- a/src/gausskernel/process/threadpool/threadpool_stream.cpp
+++ b/src/gausskernel/process/threadpool/threadpool_stream.cpp
@@ -137,6 +137,8 @@ void ThreadPoolStream::InitStream()
     InitializeGUCOptions();
     /* Read in remaining GUC variables */
     read_nondefault_variables();
+    /* Init share memory for this session. */
+    init_session_share_memory();
 
     /* Do local initialization of file, storage and buffer managers */
     InitFileAccess();
diff --git a/src/gausskernel/process/threadpool/threadpool_worker.cpp b/src/gausskernel/process/threadpool/threadpool_worker.cpp
index 8724294fff0ae7abfabdff3de00f629fa43b31b6..bc05d12ac5145d6c00cc7557c8e49692b794034b 100644
--- a/src/gausskernel/process/threadpool/threadpool_worker.cpp
+++ b/src/gausskernel/process/threadpool/threadpool_worker.cpp
@@ -798,7 +798,7 @@ void ThreadPoolWorker::AddBackend(Backend* bn)
     DLAddHead(g_instance.backend_list, &bn->elem);
 }
 
-static void init_session_share_memory()
+void init_session_share_memory()
 {
     TableSpaceUsageManager::Init();
 #ifndef ENABLE_MULTIPLE_NODES
diff --git a/src/include/threadpool/threadpool_worker.h b/src/include/threadpool/threadpool_worker.h
index a34006fb088b50097bba798dc5cb0d62f151cb1e..10d90fc0c81cb3cffe8b97f8e857f8562836238b 100644
--- a/src/include/threadpool/threadpool_worker.h
+++ b/src/include/threadpool/threadpool_worker.h
@@ -153,4 +153,6 @@ private:
     knl_thrd_context *m_thrd;
 };
 
+extern void init_session_share_memory();
+
 #endif /* THREAD_POOL_WORKER_H */
diff --git a/src/test/regress/input/hw_createtbl_llt.source b/src/test/regress/input/hw_createtbl_llt.source
index 3e143742034df93100f774a6191cab08ae647fad..d015ed703bb41d4a759d4c0b7c1cd01ba16bb30d 100644
--- a/src/test/regress/input/hw_createtbl_llt.source
+++ b/src/test/regress/input/hw_createtbl_llt.source
@@ -19,6 +19,9 @@ reset current_schema;
 
 show current_schema;
 
+--test for core issue #IBXF6U
+set query_dop = 1002;
+
 --test create table tablesapce as select
 create table ts_t1(id int,info text) tablespace hw_createtbl_llt_tablespace;
 insert into ts_t1 values(generate_series(1,1000),'sadadsa');
@@ -26,6 +29,7 @@ create table ts_t2 tablespace hw_createtbl_llt_tablespace as select * from ts_t1
 select relname,reltablespace from pg_class where relname in('ts_t1','ts_t2') order by 1;
 select relname,relfilenode,reltablespace from pg_class where relname='ts_t2';
 
+reset query_dop;
 drop table ts_t1;
 drop table ts_t2;
 
diff --git a/src/test/regress/output/hw_createtbl_llt.source b/src/test/regress/output/hw_createtbl_llt.source
index 46e67604fe8705ec9969a048f0a0c30c55f791a5..6f637a53f0814e285342cfcecdb45d930681d698 100644
--- a/src/test/regress/output/hw_createtbl_llt.source
+++ b/src/test/regress/output/hw_createtbl_llt.source
@@ -25,6 +25,8 @@ show current_schema;
  "$user",public
 (1 row)
 
+--test for core issue #IBXF6U
+set query_dop = 1002;
 --test create table tablesapce as select
 create table ts_t1(id int,info text) tablespace hw_createtbl_llt_tablespace;
 insert into ts_t1 values(generate_series(1,1000),'sadadsa');
@@ -42,6 +44,7 @@ select relname,relfilenode,reltablespace from pg_class where relname='ts_t2';
 --? ts_t2   |.*                   
 (1 row)
 
+reset query_dop;
 drop table ts_t1;
 drop table ts_t2;
 -- clean enviroment