*** pgsql/src/backend/access/heap/heapam.c	2010/04/22 02:15:45	1.289
--- pgsql/src/backend/access/heap/heapam.c	2010/05/02 22:28:05	1.290
***************
*** 8,14 ****
   *
   *
   * IDENTIFICATION
!  *	  $PostgreSQL: pgsql/src/backend/access/heap/heapam.c,v 1.288 2010/02/26 02:00:33 momjian Exp $
   *
   *
   * INTERFACE ROUTINES
--- 8,14 ----
   *
   *
   * IDENTIFICATION
!  *	  $PostgreSQL: pgsql/src/backend/access/heap/heapam.c,v 1.289 2010/04/22 02:15:45 sriggs Exp $
   *
   *
   * INTERFACE ROUTINES
*************** heap_xlog_newpage(XLogRecPtr lsn, XLogRe
*** 4257,4264 ****
  	 * Note: the NEWPAGE log record is used for both heaps and indexes, so do
  	 * not do anything that assumes we are touching a heap.
  	 */
! 	buffer = XLogReadBuffer(xlrec->node, xlrec->blkno, true);
  	Assert(BufferIsValid(buffer));
  	page = (Page) BufferGetPage(buffer);
  
  	Assert(record->xl_len == SizeOfHeapNewpage + BLCKSZ);
--- 4257,4266 ----
  	 * Note: the NEWPAGE log record is used for both heaps and indexes, so do
  	 * not do anything that assumes we are touching a heap.
  	 */
! 	buffer = XLogReadBufferExtended(xlrec->node, xlrec->forknum, xlrec->blkno,
! 									RBM_ZERO);
  	Assert(BufferIsValid(buffer));
+ 	LockBuffer(buffer, BUFFER_LOCK_EXCLUSIVE);
  	page = (Page) BufferGetPage(buffer);
  
  	Assert(record->xl_len == SizeOfHeapNewpage + BLCKSZ);