1 files changed, 4 insertions, 0 deletions
diff --git a/util/mmap.cpp b/util/mmap.cpp
index 83e9107f0d2..c200ce9dcd3 100644
--- a/util/mmap.cpp
+++ b/util/mmap.cpp
@@ -98,6 +98,10 @@ namespace mongo {
             MongoFile * mmf = *i;
             if ( ! mmf )
                 continue;
+
+            PRINT(mmf);
+            PRINT(typeid(mmf).name());
+
             mmf->flush( sync );
         }
         return num;