Commit ae8cc984 authored by unknown's avatar unknown
Browse files

dict0load.c, dict0crea.c: 

  Add diagnostic code to track corruption in mix_len; it was reported on the mailing list Jan 14, 2005


innobase/dict/dict0crea.c:
  Add diagnostic code to track corruption in mix_len; it was reported on the mailing list Jan 14, 2005
innobase/dict/dict0load.c:
  Add diagnostic code to track corruption in mix_len; it was reported on the mailing list Jan 14, 2005
parent 6f70a1d9

innobase/dict/dict0crea.c

+11 −0
Original line number Diff line number Diff line
@@ -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);

innobase/dict/dict0load.c

+17 −0
Original line number Diff line number Diff line
@@ -729,6 +729,7 @@ 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_id 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 < 50300

	/* Starting from MySQL 5.0.3, the high-order bit of MIX_LEN is the

	"compact format" flag. */