Changeset 99446 in vbox

Timestamp:

Apr 18, 2023 3:05:28 PM (2 years ago)

Author:

vboxsync

svn:sync-xref-src-repo-rev:

156907

Message:

FE/Qt: Workaround for weird QPointer delete behavior.

File:

• trunk/src/VBox/Frontends/VirtualBox/src/globals/UIMessageCenter.cpp (modified) (1 diff)

trunk/src/VBox/Frontends/VirtualBox/src/globals/UIMessageCenter.cpp

@@ -2369 +2369 @@
 
     /* Delete message-box: */
+#if 1 /* With a debug Qt 5.15.2 (r175) build and paged heap on windows, the ~QPointer destructor will trigger heap corruption
+         (VERIFIER STOP 0000000000000010: pid 0x253C: corrupted start stamp).  Clearing the QPointer prior to deletion works
+         around the issue (calling clear() after delete just triggers the problem a few lines earlier). */
+    QIMessageBox *pSafe = pMessageBox;
+    pMessageBox.clear();
+    if (pSafe)
+        delete pSafe;
+#else
     delete pMessageBox;
+#endif
 
     /* Return result-code: */