bzr push into mysql-trunk branch (kevin.lewis:3258 to 3259)

[kevin.lewis]

 3259 kevin.lewis@stripped	2011-07-19
      WL5756 - A small change is made that will prevent InnoDB from crashing if a system tablespace with 8k pages is opened by an engine that is using innodb-page-size = 16k.  The crash happens when InnoDB is reporting a bad page.

    modified:
      storage/innobase/dict/dict0dict.c
 3258 kevin.lewis@stripped	2011-07-19
      Cleanup from previous WL5756 patch.  It was missing 4k and 8k versions of innodb_index_large_prefix.test which is only for 16k pages. Also, some cleanup of comments in test files.

    added:
      mysql-test/suite/innodb/r/innodb_index_large_prefix_4k.result
      mysql-test/suite/innodb/r/innodb_index_large_prefix_8k.result
      mysql-test/suite/innodb/t/innodb_index_large_prefix_4k.test
      mysql-test/suite/innodb/t/innodb_index_large_prefix_8k.test
    modified:
      mysql-test/suite/innodb/r/innodb_16k.result
      mysql-test/suite/innodb/r/innodb_4k.result
      mysql-test/suite/innodb/r/innodb_8k.result
      mysql-test/suite/innodb/t/innodb.test
      mysql-test/suite/innodb/t/innodb_16k.test
      mysql-test/suite/innodb/t/innodb_4k.test
      mysql-test/suite/innodb/t/innodb_8k.test
=== modified file 'storage/innobase/dict/dict0dict.c'
--- a/storage/innobase/dict/dict0dict.c	revid:kevin.lewis@stripped
+++ b/storage/innobase/dict/dict0dict.c	revid:kevin.lewis@stripped
@@ -1263,6 +1263,10 @@ dict_index_find_on_id_low(
 {
 	dict_table_t*	table;
 
+	/* This can happen if the system tablespace is the wrong page size */
+	if (dict_sys == NULL)
+		return NULL;
+
 	for (table = UT_LIST_GET_FIRST(dict_sys->table_LRU);
 	     table != NULL;
 	     table = UT_LIST_GET_NEXT(table_LRU, table)) {

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