Merge hundin.mysql.fi:/home/heikki/mysql-4.1

into hundin.mysql.fi:/home/heikki/mysql-5.0


innobase/dict/dict0crea.c:
  Auto merged
innobase/dict/dict0dict.c:
  Auto merged
innobase/dict/dict0load.c:
  Auto merged
innobase/fil/fil0fil.c:
  Auto merged

3 files changed, 34 insertions, 2 deletions

diff --git a/innobase/dict/dict0crea.c b/innobase/dict/dict0crea.c
index 3c496bae5b4..b6f79ad10b4 100644
--- a/innobase/dict/dict0crea.c
+++ b/innobase/dict/dict0crea.c
@@ -81,6 +81,17 @@ dict_create_sys_tables_tuple(
 
 	dfield_set_data(dfield, ptr, 8);
 	/* 7: MIX_LEN --------------------------*/
+
+	/* Track corruption reported on mailing list Jan 14, 2005 */
+	if (table->mix_len != 0 && table->mix_len != 0x80000000) {
+		fprintf(stderr,
+"InnoDB: Error: mix_len is %lu in table %s\n", (ulong)table->mix_len,
+							table->name);
+		mem_analyze_corruption((byte*)&(table->mix_len));
+	
+		ut_error;
+	}
+
 	dfield = dtuple_get_nth_field(entry, 5);
 
 	ptr = mem_heap_alloc(heap, 4);
diff --git a/innobase/dict/dict0dict.c b/innobase/dict/dict0dict.c
index 12749f7704f..800d7dcd9e9 100644
--- a/innobase/dict/dict0dict.c
+++ b/innobase/dict/dict0dict.c
@@ -2920,9 +2920,9 @@ loop:
 	constraint_name = NULL;
 
 	if (ptr1 < ptr2) {
-		/* The user has specified a constraint name. Pick it so
+		/* The user may have specified a constraint name. Pick it so
 		that we can store 'databasename/constraintname' as the id of
-		the id of the constraint to system tables. */
+		of the constraint to system tables. */
 		ptr = ptr1;
 
 		ptr = dict_accept(ptr, "CONSTRAINT", &success);
@@ -2959,6 +2959,10 @@ loop:
 
 	ptr = dict_accept(ptr, "FOREIGN", &success);		
 	
+	if (!success) {
+		goto loop;
+	}
+
 	if (!isspace(*ptr)) {
 	        goto loop;
 	}
diff --git a/innobase/dict/dict0load.c b/innobase/dict/dict0load.c
index 18910acb01d..63f25cdddfe 100644
--- a/innobase/dict/dict0load.c
+++ b/innobase/dict/dict0load.c
@@ -728,6 +728,7 @@ dict_load_table(
 	ulint		space;
 	ulint		n_cols;
 	ulint		err;
+	ulint		mix_len;
 	mtr_t		mtr;
 	
 #ifdef UNIV_SYNC_DEBUG
@@ -775,6 +776,22 @@ dict_load_table(
 		return(NULL);
 	}
 
+	/* Track a corruption bug reported on the MySQL mailing list Jan 14,
+	2005: mix_len had a value different from 0 */
+
+	field = rec_get_nth_field(rec, 7, &len);
+	ut_a(len == 4);
+
+	mix_len = mach_read_from_4(field);
+
+	if (mix_len != 0 && mix_len != 0x80000000) {
+		ut_print_timestamp(stderr);
+		
+		fprintf(stderr,
+			"  InnoDB: table %s has a nonsensical mix len %lu\n",
+			name, (ulong)mix_len);
+	}
+
 #if MYSQL_VERSION_ID < 50003
 	/* Starting from MySQL 5.0.3, the high-order bit of MIX_LEN is the
 	"compact format" flag. */