Changeset 26956 in vbox

Timestamp:

Mar 2, 2010 4:03:58 PM (15 years ago)

Author:

vboxsync

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

58246

Message:

I/O Cache: Fix a crash

File:

• trunk/src/VBox/VMM/PDMAsyncCompletionFileCache.cpp (modified) (1 diff)

trunk/src/VBox/VMM/PDMAsyncCompletionFileCache.cpp ¶

@@ -534 +534 @@
             Assert(!fReuseBuffer || !*ppbBuffer); /* It is not possible that we got a buffer with the correct size but we didn't freed enough data. */
 
-            cbRemoved += pdmacFileCacheEvictPagesFrom(pCache, cbData - cbRemoved, &pCache->LruFrequentlyUsed,
-                                                      NULL, fReuseBuffer, ppbBuffer);
+            /*
+             * If we removed something we can't pass the reuse buffer flag anymore because
+             * we don't need to evict that much data
+             */
+            if (!cbRemoved)
+                cbRemoved += pdmacFileCacheEvictPagesFrom(pCache, cbData - cbRemoved, &pCache->LruFrequentlyUsed,
+                                                          NULL, fReuseBuffer, ppbBuffer);
+            else
+                cbRemoved += pdmacFileCacheEvictPagesFrom(pCache, cbData - cbRemoved, &pCache->LruFrequentlyUsed,
+                                                          NULL, false, NULL);
         }
     }