Index: src/java/org/apache/lucene/index/SegmentTermEnum.java
===================================================================
--- src/java/org/apache/lucene/index/SegmentTermEnum.java	(revision 908159)
+++ src/java/org/apache/lucene/index/SegmentTermEnum.java	(working copy)
@@ -108,7 +108,7 @@
     return clone;
   }
 
-  final void seek(long pointer, int p, Term t, TermInfo ti)
+  final void seek(long pointer, long p, Term t, TermInfo ti)
           throws IOException {
     input.seek(pointer);
     position = p;
Index: src/java/org/apache/lucene/index/TermInfosReader.java
===================================================================
--- src/java/org/apache/lucene/index/TermInfosReader.java	(revision 908159)
+++ src/java/org/apache/lucene/index/TermInfosReader.java	(working copy)
@@ -170,7 +170,7 @@
 
   private final void seekEnum(SegmentTermEnum enumerator, int indexOffset) throws IOException {
     enumerator.seek(indexPointers[indexOffset],
-                   (indexOffset * totalIndexInterval) - 1,
+                   ((long) indexOffset * totalIndexInterval) - 1,
                    indexTerms[indexOffset], indexInfos[indexOffset]);
   }