some additional logging

platform/platform-impl/src/com/intellij/openapi/vfs/newvfs/persistent/FSRecords.java

@@ -169,7 +169,7 @@ public class FSRecords implements Disposable, Forceable {
         }
 
         if (myRecords.getInt(HEADER_CONNECTION_STATUS_OFFSET) != SAFELY_CLOSED_MAGIC) {
-          throw new IOException("FS repostiory wasn't safely shut down");
+          throw new IOException("FS repository wasn't safely shut down");
         }
         markDirty();
       }
@@ -217,6 +217,7 @@ public class FSRecords implements Disposable, Forceable {
     }
 
     private static void invalidateIndex() {
+      LOG.info("Marking VFS as corrupted");
       FileUtil.createIfDoesntExist(new File(PathManager.getIndexRoot(), "corruption.marker"));
     }
 

platform/platform-impl/src/com/intellij/openapi/vfs/newvfs/persistent/PersistentFS.java

@@ -65,7 +65,9 @@ public class PersistentFS extends ManagingFS implements ApplicationComponent {
     */
     ShutDownTracker.getInstance().registerShutdownTask(new Runnable() {
       public void run() {
+        LOG.info("VFS dispose started");
         myRecords.dispose();
+        LOG.info("VFS dispose completed");
       }
     });
   }