From 5fb4738b59dd8bc24ddfa730047efa838174e02a Mon Sep 17 00:00:00 2001
From: q00421813 <quemingjian2@huawei.com>
Date: Wed, 7 Aug 2024 18:53:01 +0800
Subject: [PATCH] uzone release buf

---
 src/gausskernel/storage/access/ustore/undo/knl_uundozone.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/gausskernel/storage/access/ustore/undo/knl_uundozone.cpp b/src/gausskernel/storage/access/ustore/undo/knl_uundozone.cpp
index fa64547d8..5d6c6859c 100644
--- a/src/gausskernel/storage/access/ustore/undo/knl_uundozone.cpp
+++ b/src/gausskernel/storage/access/ustore/undo/knl_uundozone.cpp
@@ -885,6 +885,7 @@ UndoZone *UndoZoneGroup::SwitchZone(int zid, UndoPersistence upersistence)
     int retZid = -1;
     uzone->PrepareSwitch();
     LWLockAcquire(UndoZoneLock, LW_EXCLUSIVE);
+    uzone->ReleaseSlotBuffer();
     UndoZone *newUzone = getUnusedZone(upersistence, &retZid, zid);
     WHITEBOX_TEST_STUB(UNDO_SWITCH_ZONE_FAILED, WhiteboxDefaultErrorEmit);
     newUzone->Attach();