===== fs/xfs/linux-2.6/xfs_buf.c 1.116 vs edited =====
--- 1.116/fs/xfs/linux-2.6/xfs_buf.c	2004-05-28 03:45:07 +02:00
+++ edited/fs/xfs/linux-2.6/xfs_buf.c	2004-06-24 14:13:12 +02:00
@@ -310,7 +310,15 @@
 {
 	PB_TRACE(bp, "free", 0);
 
+	ASSERT(list_empty(&pb->pb_list));
 	ASSERT(list_empty(&bp->pb_hash_list));
+	ASSERT(!(bp->pb_flags & PBF_DELWRI));
+
+	if (!bp->pb_pages) {
+		printk("pagebuf without pb_pages?\n");
+		dump_stack();
+		goto out;
+	}
 
 	if (bp->pb_flags & _PBF_PAGE_CACHE) {
 		uint		i;
@@ -331,6 +339,7 @@
 		_pagebuf_free_pages(bp);
 	}
 
+ out:
 	pagebuf_deallocate(bp);
 }