diff --git a/Makefile.am b/Makefile.am
index 6fdc1621059..3f46f059fc0 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -77,6 +77,7 @@ EXTRA_DIST = 	include/btr0btr.h include/btr0btr.ic include/btr0cur.h include/btr
 		include/ut0byte.h include/ut0byte.ic include/ut0dbg.h include/ut0lst.h \
 		include/ut0mem.h include/ut0mem.ic include/ut0rnd.h include/ut0rnd.ic \
 		include/ut0sort.h include/ut0ut.h include/ut0ut.ic include/ut0vec.h include/ut0vec.ic include/ha_prototypes.h \
+		include/ut0list.h include/ut0list.ic include/ut0wqueue.h \
 		CMakeLists.txt
 
 noinst_LIBRARIES =	libinnobase.a
diff --git a/btr/btr0btr.c b/btr/btr0btr.c
index 8fbe65126eb..9ce8fb6688d 100644
--- a/btr/btr0btr.c
+++ b/btr/btr0btr.c
@@ -637,7 +637,7 @@ btr_page_get_father_for_rec(
 		fputs(
 "InnoDB: You should dump + drop + reimport the table to fix the\n"
 "InnoDB: corruption. If the crash happens at the database startup, see\n"
-"InnoDB: http://dev.mysql.com/doc/mysql/en/Forcing_recovery.html about\n"
+"InnoDB: http://dev.mysql.com/doc/refman/5.1/en/forcing-recovery.html about\n"
 "InnoDB: forcing recovery. Then dump + drop + reimport.\n", stderr);
 
 		ut_error;
diff --git a/buf/buf0buf.c b/buf/buf0buf.c
index 86275b65650..d078fd82533 100644
--- a/buf/buf0buf.c
+++ b/buf/buf0buf.c
@@ -326,7 +326,8 @@ buf_page_is_corrupted(
 "InnoDB: is in the future! Current system log sequence number %lu %lu.\n"
 "InnoDB: Your database may be corrupt or you may have copied the InnoDB\n"
 "InnoDB: tablespace but not the InnoDB log files. See\n"
-"http://dev.mysql.com/doc/mysql/en/backing-up.html for more information.\n",
+"InnoDB: http://dev.mysql.com/doc/refman/5.1/en/forcing-recovery.html\n"
+"InnoDB: for more information.\n",
 				(ulong) mach_read_from_4(read_buf + FIL_PAGE_OFFSET),
 				(ulong) ut_dulint_get_high(
 					mach_read_from_8(read_buf + FIL_PAGE_LSN)),
@@ -2065,7 +2066,7 @@ corrupt:
 		"InnoDB: the corrupt table. You can use CHECK\n"
 		"InnoDB: TABLE to scan your table for corruption.\n"
 		"InnoDB: See also "
-		"http://dev.mysql.com/doc/mysql/en/Forcing_recovery.html\n"
+"InnoDB: http://dev.mysql.com/doc/refman/5.1/en/forcing-recovery.html\n"
 		"InnoDB: about forcing recovery.\n", stderr);
 
 			if (srv_force_recovery < SRV_FORCE_IGNORE_CORRUPT) {
diff --git a/configure.in b/configure.in
index 91afcc1c9b3..4aaa28da89e 100644
--- a/configure.in
+++ b/configure.in
@@ -105,7 +105,7 @@ fi
 # If using gcc, add some extra warning flags.
 if test "$ac_cv_prog_gcc" = "yes"
 then
-  CFLAGS="$CFLAGS -Werror-implicit-function-declaration"
+  CFLAGS="$CFLAGS -Werror-implicit-function-declaration -Wpointer-arith"
 fi
 
 case "$target_os" in
diff --git a/dict/dict0dict.c b/dict/dict0dict.c
index 933ac17f630..fd488be3c34 100644
--- a/dict/dict0dict.c
+++ b/dict/dict0dict.c
@@ -2217,8 +2217,8 @@ dict_foreign_error_report(
 	if (fk->foreign_index) {
 		fputs("The index in the foreign key in table is ", file);
 		ut_print_name(file, NULL, FALSE, fk->foreign_index->name);
-		fputs(
-"\nSee http://dev.mysql.com/doc/mysql/en/InnoDB_foreign_key_constraints.html\n"
+		fputs("\n"
+"See http://dev.mysql.com/doc/refman/5.1/en/innodb-foreign-key-constraints.html\n"
 "for correct foreign key definition.\n",
 		file);
 	}
@@ -3121,7 +3121,7 @@ col_loop1:
 		ut_print_name(ef, NULL, TRUE, name);
 		fprintf(ef, " where the columns appear\n"
 "as the first columns. Constraint:\n%s\n"
-"See http://dev.mysql.com/doc/mysql/en/InnoDB_foreign_key_constraints.html\n"
+"See http://dev.mysql.com/doc/refman/5.1/en/innodb-foreign-key-constraints.html\n"
 "for correct foreign key definition.\n",
 			start_of_latest_foreign);
 		mutex_exit(&dict_foreign_err_mutex);
@@ -3389,7 +3389,7 @@ try_find_index:
 "Note that the internal storage type of ENUM and SET changed in\n"
 "tables created with >= InnoDB-4.1.12, and such columns in old tables\n"
 "cannot be referenced by such columns in new tables.\n"
-"See http://dev.mysql.com/doc/mysql/en/InnoDB_foreign_key_constraints.html\n"
+"See http://dev.mysql.com/doc/refman/5.1/en/innodb-foreign-key-constraints.html\n"
 "for correct foreign key definition.\n",
 				start_of_latest_foreign);
 			mutex_exit(&dict_foreign_err_mutex);
@@ -3962,8 +3962,7 @@ dict_update_statistics_low(
 		fprintf(stderr,
 			"  InnoDB: cannot calculate statistics for table %s\n"
 "InnoDB: because the .ibd file is missing.  For help, please refer to\n"
-"InnoDB: "
-"http://dev.mysql.com/doc/mysql/en/InnoDB_troubleshooting_datadict.html\n",
+"InnoDB: http://dev.mysql.com/doc/refman/5.1/en/innodb-troubleshooting.html\n",
 			table->name);
 
 		return;
diff --git a/fil/fil0fil.c b/fil/fil0fil.c
index 65b408bf3d8..ae11d751185 100644
--- a/fil/fil0fil.c
+++ b/fil/fil0fil.c
@@ -253,9 +253,6 @@ struct fil_system_struct {
 initialized. */
 fil_system_t*	fil_system	= NULL;
 
-/* The tablespace memory cache hash table size */
-#define	FIL_SYSTEM_HASH_SIZE	50 /* TODO: make bigger! */
-
 
 /************************************************************************
 NOTE: you must call fil_mutex_enter_and_prepare_for_io() first!
@@ -1454,11 +1451,17 @@ fil_init(
 /*=====*/
 	ulint	max_n_open)	/* in: max number of open files */
 {
+	ulint	hash_size;
+
 	ut_a(fil_system == NULL);
 
-	/*printf("Initializing the tablespace cache with max %lu open files\n",
-	  max_n_open); */
-	fil_system = fil_system_create(FIL_SYSTEM_HASH_SIZE, max_n_open);
+	if (srv_file_per_table) {
+		hash_size = 50000;
+	} else {
+		hash_size = 5000;
+	}
+
+	fil_system = fil_system_create(hash_size, max_n_open);
 }
 
 /***********************************************************************
@@ -2731,7 +2734,7 @@ fil_reset_too_high_lsns(
 
 	ut_print_timestamp(stderr);
 	fprintf(stderr,
-" InnoDB: Flush lsn in the tablespace file %lu to be imported\n"
+"  InnoDB: Flush lsn in the tablespace file %lu to be imported\n"
 "InnoDB: is %lu %lu, which exceeds current system lsn %lu %lu.\n"
 "InnoDB: We reset the lsn's in the file ",
 		(ulong) space_id,
@@ -2860,8 +2863,7 @@ fil_open_single_table_tablespace(
 "InnoDB: It is also possible that this is a temporary table #sql...,\n"
 "InnoDB: and MySQL removed the .ibd file for this.\n"
 "InnoDB: Please refer to\n"
-"InnoDB:"
-" http://dev.mysql.com/doc/mysql/en/InnoDB_troubleshooting_datadict.html\n"
+"InnoDB: http://dev.mysql.com/doc/refman/5.1/en/innodb-troubleshooting.html\n"
 "InnoDB: for how to resolve the issue.\n", stderr);
 
 		mem_free(filepath);
@@ -2900,8 +2902,7 @@ fil_open_single_table_tablespace(
 "InnoDB: Have you moved InnoDB .ibd files around without using the\n"
 "InnoDB: commands DISCARD TABLESPACE and IMPORT TABLESPACE?\n"
 "InnoDB: Please refer to\n"
-"InnoDB:"
-" http://dev.mysql.com/doc/mysql/en/InnoDB_troubleshooting_datadict.html\n"
+"InnoDB: http://dev.mysql.com/doc/refman/5.1/en/innodb-troubleshooting.html\n"
 "InnoDB: for how to resolve the issue.\n", (ulong) space_id, (ulong) id);
 
 		ret = FALSE;
@@ -3553,8 +3554,7 @@ fil_space_for_table_exists_in_mem(
 	error_exit:
 		fputs(
 "InnoDB: Please refer to\n"
-"InnoDB:"
-" http://dev.mysql.com/doc/mysql/en/InnoDB_troubleshooting_datadict.html\n"
+"InnoDB: http://dev.mysql.com/doc/refman/5.1/en/innodb-troubleshooting.html\n"
 "InnoDB: for how to resolve the issue.\n", stderr);
 
 		mem_free(path);
diff --git a/fsp/fsp0fsp.c b/fsp/fsp0fsp.c
index cd66a557b1d..5a155a39030 100644
--- a/fsp/fsp0fsp.c
+++ b/fsp/fsp0fsp.c
@@ -3129,7 +3129,7 @@ fseg_free_page_low(
 	crash:
 		fputs(
 "InnoDB: Please refer to\n"
-"InnoDB: http://dev.mysql.com/doc/mysql/en/Forcing_recovery.html\n"
+"InnoDB: http://dev.mysql.com/doc/refman/5.1/en/forcing-recovery.html\n"
 "InnoDB: about forcing recovery.\n", stderr);
 		ut_error;
 	}
diff --git a/handler/ha_innodb.cc b/handler/ha_innodb.cc
index 260e73818ee..6bacaa8a4ca 100644
--- a/handler/ha_innodb.cc
+++ b/handler/ha_innodb.cc
@@ -168,7 +168,6 @@ char*	innobase_unix_file_flush_method		= NULL;
 /* Below we have boolean-valued start-up parameters, and their default
 values */
 
-uint	innobase_flush_log_at_trx_commit	= 1;
 ulong	innobase_fast_shutdown			= 1;
 my_bool innobase_log_archive			= FALSE;/* unused */
 my_bool innobase_use_doublewrite		= TRUE;
@@ -1518,7 +1517,6 @@ innobase_init(void)
 	srv_log_archive_on = (ulint) innobase_log_archive;
 #endif /* UNIV_LOG_ARCHIVE */
 	srv_log_buffer_size = (ulint) innobase_log_buffer_size;
-	srv_flush_log_at_trx_commit = (ulint) innobase_flush_log_at_trx_commit;
 
 	/* We set srv_pool_size here in units of 1 kB. InnoDB internally
 	changes the value so that it becomes the number of database pages. */
@@ -1975,7 +1973,7 @@ innobase_commit_complete(
 
 		trx->active_trans = 0;
 
-		if (srv_flush_log_at_trx_commit == 0) {
+		if (UNIV_UNLIKELY(srv_flush_log_at_trx_commit == 0)) {
 
 			return(0);
 		}
@@ -2367,8 +2365,7 @@ ha_innobase::open(
 				"have forgotten\nto delete the corresponding "
 				".frm files of InnoDB tables, or you\n"
 				"have moved .frm files to another database?\n"
-				"Look from section 15.1 of "
-				"http://www.innodb.com/ibman.html\n"
+				"See http://dev.mysql.com/doc/refman/5.1/en/innodb-troubleshooting.html\n"
 				"how you can resolve the problem.\n",
 				norm_name);
 		free_share(share);
@@ -2385,8 +2382,7 @@ ha_innobase::open(
 				"Have you deleted the .ibd file from the "
 				"database directory under\nthe MySQL datadir, "
 				"or have you used DISCARD TABLESPACE?\n"
-				"Look from section 15.1 of "
-				"http://www.innodb.com/ibman.html\n"
+				"See http://dev.mysql.com/doc/refman/5.1/en/innodb-troubleshooting.html\n"
 				"how you can resolve the problem.\n",
 				norm_name);
 		free_share(share);
@@ -3667,7 +3663,7 @@ ha_innobase::update_row(
 
 	DBUG_ENTER("ha_innobase::update_row");
 
-	ut_ad(prebuilt->trx ==
+	ut_a(prebuilt->trx ==
 		(trx_t*) current_thd->ha_data[innobase_hton.slot]);
 
 	if (table->timestamp_field_type & TIMESTAMP_AUTO_SET_ON_UPDATE)
@@ -3728,7 +3724,7 @@ ha_innobase::delete_row(
 
 	DBUG_ENTER("ha_innobase::delete_row");
 
-	ut_ad(prebuilt->trx ==
+	ut_a(prebuilt->trx ==
 		(trx_t*) current_thd->ha_data[innobase_hton.slot]);
 
 	if (last_query_id != user_thd->query_id) {
@@ -3826,6 +3822,9 @@ ha_innobase::try_semi_consistent_read(bool yes)
 {
 	row_prebuilt_t*	prebuilt = (row_prebuilt_t*) innobase_prebuilt;
 
+	ut_a(prebuilt->trx ==
+		(trx_t*) current_thd->ha_data[innobase_hton.slot]);
+
 	/* Row read type is set to semi consistent read if this was
 	requested by the MySQL and either innodb_locks_unsafe_for_binlog
 	option is used or this session is using READ COMMITTED isolation
@@ -3990,7 +3989,7 @@ ha_innobase::index_read(
 
 	DBUG_ENTER("index_read");
 
-	ut_ad(prebuilt->trx ==
+	ut_a(prebuilt->trx ==
 		(trx_t*) current_thd->ha_data[innobase_hton.slot]);
 
 	statistic_increment(current_thd->status_var.ha_read_key_count,
@@ -4105,7 +4104,7 @@ ha_innobase::change_active_index(
 	DBUG_ENTER("change_active_index");
 
 	ut_ad(user_thd == current_thd);
-	ut_ad(prebuilt->trx ==
+	ut_a(prebuilt->trx ==
 		(trx_t*) current_thd->ha_data[innobase_hton.slot]);
 
 	active_index = keynr;
@@ -4195,7 +4194,7 @@ ha_innobase::general_fetch(
 
 	DBUG_ENTER("general_fetch");
 
-	ut_ad(prebuilt->trx ==
+	ut_a(prebuilt->trx ==
 		(trx_t*) current_thd->ha_data[innobase_hton.slot]);
 
 	innodb_srv_conc_enter_innodb(prebuilt->trx);
@@ -4431,7 +4430,7 @@ ha_innobase::rnd_pos(
 	statistic_increment(current_thd->status_var.ha_read_rnd_count,
 		&LOCK_status);
 
-	ut_ad(prebuilt->trx ==
+	ut_a(prebuilt->trx ==
 		(trx_t*) current_thd->ha_data[innobase_hton.slot]);
 
 	if (prebuilt->clust_index_was_generated) {
@@ -4481,7 +4480,7 @@ ha_innobase::position(
 	row_prebuilt_t*	prebuilt = (row_prebuilt_t*) innobase_prebuilt;
 	uint		len;
 
-	ut_ad(prebuilt->trx ==
+	ut_a(prebuilt->trx ==
 		(trx_t*) current_thd->ha_data[innobase_hton.slot]);
 
 	if (prebuilt->clust_index_was_generated) {
@@ -5018,7 +5017,6 @@ ha_innobase::delete_all_rows(void)
 {
 	row_prebuilt_t*	prebuilt	= (row_prebuilt_t*)innobase_prebuilt;
 	int		error;
-	trx_t*		trx;
 	THD*		thd		= current_thd;
 
 	DBUG_ENTER("ha_innobase::delete_all_rows");
@@ -5031,13 +5029,13 @@ ha_innobase::delete_all_rows(void)
 	}
 
 	/* Get the transaction associated with the current thd, or create one
-	if not yet created */
+	if not yet created, and update prebuilt->trx */
 
-	trx = check_trx_exists(thd);
+	update_thd(thd);
 
 	/* Truncate the table in InnoDB */
 
-	error = row_truncate_table_for_mysql(prebuilt->table, trx);
+	error = row_truncate_table_for_mysql(prebuilt->table, prebuilt->trx);
 	if (error == DB_ERROR) {
 		/* Cannot truncate; resort to ha_innobase::delete_row() */
 		goto fallback;
@@ -5320,6 +5318,9 @@ ha_innobase::records_in_range(
 
 	DBUG_ENTER("records_in_range");
 
+	ut_a(prebuilt->trx ==
+		(trx_t*) current_thd->ha_data[innobase_hton.slot]);
+
 	prebuilt->trx->op_info = (char*)"estimating records in index range";
 
 	/* In case MySQL calls this in the middle of a SELECT query, release
@@ -5616,13 +5617,14 @@ ha_innobase::info(
 		for (i = 0; i < table->s->keys; i++) {
 			if (index == NULL) {
 				ut_print_timestamp(stderr);
-				sql_print_error("Table %s contains less "
+				sql_print_error("Table %s contains fewer "
 						"indexes inside InnoDB than "
 						"are defined in the MySQL "
 						".frm file. Have you mixed up "
 						".frm files from different "
-						"installations? See section "
-						"15.1 at http://www.innodb.com/ibman.html",
+						"installations? See "
+"http://dev.mysql.com/doc/refman/5.1/en/innodb-troubleshooting.html\n",
+
 						ib_table->name);
 				break;
 			}
@@ -5631,17 +5633,11 @@ ha_innobase::info(
 
 				if (j + 1 > index->n_uniq) {
 					ut_print_timestamp(stderr);
-					sql_print_error("Index %s of %s has "
-							"%lu columns unique "
-							"inside InnoDB, but "
-							"MySQL is asking "
-							"statistics for %lu "
-							"columns. Have you "
-							"mixed up .frm files "
-							"from different "
-							"installations? See "
-							"section 15.1 at "
-							"http://www.innodb.com/ibman.html",
+					sql_print_error(
+"Index %s of %s has %lu columns unique inside InnoDB, but MySQL is asking "
+"statistics for %lu columns. Have you mixed up .frm files from different "
+"installations? "
+"See http://dev.mysql.com/doc/refman/5.1/en/innodb-troubleshooting.html\n",
 							index->name,
 							ib_table->name,
 							(unsigned long)
@@ -6047,6 +6043,10 @@ ha_innobase::can_switch_engines(void)
 	bool	can_switch;
 
 	DBUG_ENTER("ha_innobase::can_switch_engines");
+
+	ut_a(prebuilt->trx ==
+		(trx_t*) current_thd->ha_data[innobase_hton.slot]);
+
 	prebuilt->trx->op_info =
 			"determining if there are foreign key constraints";
 	row_mysql_lock_data_dictionary(prebuilt->trx);
@@ -6184,14 +6184,6 @@ ha_innobase::start_stmt(
 
 	innobase_release_stat_resources(trx);
 
-	if (trx->isolation_level <= TRX_ISO_READ_COMMITTED
-						&& trx->global_read_view) {
-		/* At low transaction isolation levels we let
-		each consistent read set its own snapshot */
-
-		read_view_close_for_mysql(trx);
-	}
-
 	prebuilt->sql_stat_start = TRUE;
 	prebuilt->hint_need_to_fetch_extra_cols = 0;
 	prebuilt->read_just_key = 0;
@@ -6450,7 +6442,7 @@ ha_innobase::transactional_table_lock(
 "table %s does not exist.\n"
 "Have you deleted the .ibd file from the database directory under\n"
 "the MySQL datadir?"
-"Look from section 15.1 of http://www.innodb.com/ibman.html\n"
+"See http://dev.mysql.com/doc/refman/5.1/en/innodb-troubleshooting.html\n"
 "how you can resolve the problem.\n",
 				prebuilt->table->name);
 		DBUG_RETURN(HA_ERR_CRASHED);
@@ -6804,7 +6796,15 @@ ha_innobase::store_lock(
 						TL_IGNORE */
 {
 	row_prebuilt_t* prebuilt	= (row_prebuilt_t*) innobase_prebuilt;
-	trx_t*		trx		= prebuilt->trx;
+	trx_t*		trx;
+
+	/* Call update_thd() to update prebuilt->trx to point to the trx
+	object of thd! Failure to do this caused a serious memory
+	corruption bug in 5.1.11. */
+
+	update_thd(thd);
+
+	trx = prebuilt->trx;
 
 	/* NOTE: MySQL	can call this function with lock 'type' TL_IGNORE!
 	Be careful to ignore TL_IGNORE if we are going to do something with
@@ -6989,10 +6989,11 @@ ha_innobase::innobase_read_and_init_auto_inc(
 	int		error;
 
 	ut_a(prebuilt);
-	ut_a(prebuilt->trx ==
-		(trx_t*) current_thd->ha_data[innobase_hton.slot]);
 	ut_a(prebuilt->table);
 
+	/* Prepare prebuilt->trx in the table handle */
+	update_thd(current_thd);
+
 	if (prebuilt->trx->conc_state == TRX_NOT_STARTED) {
 		trx_was_not_started = TRUE;
 	}
@@ -7127,6 +7128,9 @@ void ha_innobase::get_auto_increment(
 	longlong	nr;
 	int		error;
 
+	/* Prepare prebuilt->trx in the table handle */
+	update_thd(current_thd);
+
 	error = innobase_read_and_init_auto_inc(&nr);
 
 	if (error) {
@@ -7155,6 +7159,8 @@ ha_innobase::reset_auto_increment(ulonglong value)
 	row_prebuilt_t* prebuilt = (row_prebuilt_t*) innobase_prebuilt;
 	int		error;
 
+	update_thd(current_thd);
+
 	error = row_lock_table_autoinc_for_mysql(prebuilt);
 
 	if (error != DB_SUCCESS) {
@@ -7195,7 +7201,7 @@ ha_innobase::cmp_ref(
 	const mysql_byte* ref2)	/* in: an (internal) primary key value in the
 				MySQL key value format */
 {
-	row_prebuilt_t*	prebuilt = (row_prebuilt_t*) innobase_prebuilt;
+	row_prebuilt_t* prebuilt	= (row_prebuilt_t*) innobase_prebuilt;
 	enum_field_types mysql_type;
 	Field*		field;
 	KEY_PART_INFO*	key_part;
diff --git a/handler/ha_innodb.h b/handler/ha_innodb.h
index c7d698cbcf4..ba8560f717f 100644
--- a/handler/ha_innodb.h
+++ b/handler/ha_innodb.h
@@ -206,7 +206,6 @@ class ha_innobase: public handler
 };
 
 extern SHOW_VAR innodb_status_variables[];
-extern uint innobase_flush_log_at_trx_commit;
 extern ulong innobase_fast_shutdown;
 extern ulong innobase_large_page_size;
 extern long innobase_mirrored_log_groups, innobase_log_files_in_group;
@@ -243,6 +242,7 @@ extern ulong srv_n_free_tickets_to_enter;
 extern ulong srv_thread_sleep_delay;
 extern ulong srv_thread_concurrency;
 extern ulong srv_commit_concurrency;
+extern ulong srv_flush_log_at_trx_commit;
 }
 
 int innobase_init(void);
diff --git a/ibuf/ibuf0ibuf.c b/ibuf/ibuf0ibuf.c
index 23acb27a128..a384ee3d59a 100644
--- a/ibuf/ibuf0ibuf.c
+++ b/ibuf/ibuf0ibuf.c
@@ -373,7 +373,6 @@ ibuf_init_at_db_start(void)
 
 	ibuf->max_size = buf_pool_get_curr_size() / UNIV_PAGE_SIZE
 						/ IBUF_POOL_SIZE_PER_MAX_SIZE;
-	ibuf->meter = IBUF_THRESHOLD + 1;
 
 	UT_LIST_INIT(ibuf->data_list);
 
@@ -3597,21 +3596,9 @@ ibuf_print(
 	data = UT_LIST_GET_FIRST(ibuf->data_list);
 
 	while (data) {
-	fprintf(file,
-	"Ibuf for space %lu: size %lu, free list len %lu, seg size %lu,",
-		(ulong) data->space, (ulong) data->size,
-		(ulong) data->free_list_len,
-		(ulong) data->seg_size);
-
-		if (data->empty) {
-			fputs(" is empty\n", file);
-		} else {
-			fputs(" is not empty\n", file);
-		}
 		fprintf(file,
-	"Ibuf for space %lu: size %lu, free list len %lu, seg size %lu,\n"
-			"%lu inserts, %lu merged recs, %lu merges\n",
-			(ulong) data->space,
+	"Ibuf: size %lu, free list len %lu, seg size %lu,\n"
+	"%lu inserts, %lu merged recs, %lu merges\n",
 			(ulong) data->size,
 			(ulong) data->free_list_len,
 			(ulong) data->seg_size,
diff --git a/include/buf0buf.ic b/include/buf0buf.ic
index 4f4e6267181..a16e8d631e5 100644
--- a/include/buf0buf.ic
+++ b/include/buf0buf.ic
@@ -234,8 +234,8 @@ buf_block_align(
 "InnoDB: Error: trying to access a stray pointer %p\n"
 "InnoDB: buf pool start is at %p, end at %p\n"
 "InnoDB: Probable reason is database corruption or memory\n"
-"InnoDB: corruption. If this happens in an InnoDB database recovery,\n"
-"InnoDB: you can look from section 6.1 at http://www.innodb.com/ibman.html\n"
+"InnoDB: corruption. If this happens in an InnoDB database recovery, see\n"
+"InnoDB: http://dev.mysql.com/doc/refman/5.1/en/forcing-recovery.html\n"
 "InnoDB: how to force recovery.\n",
 			ptr, frame_zero,
 			buf_pool->high_end);
@@ -270,8 +270,8 @@ buf_frame_align(
 "InnoDB: Error: trying to access a stray pointer %p\n"
 "InnoDB: buf pool start is at %p, end at %p\n"
 "InnoDB: Probable reason is database corruption or memory\n"
-"InnoDB: corruption. If this happens in an InnoDB database recovery,\n"
-"InnoDB: you can look from section 6.1 at http://www.innodb.com/ibman.html\n"
+"InnoDB: corruption. If this happens in an InnoDB database recovery, see\n"
+"InnoDB: http://dev.mysql.com/doc/refman/5.1/en/forcing-recovery.html\n"
 "InnoDB: how to force recovery.\n",
 			ptr, buf_pool->frame_zero,
 			buf_pool->high_end);
diff --git a/include/ibuf0ibuf.ic b/include/ibuf0ibuf.ic
index 5e858dc28b4..433b0a8f43e 100644
--- a/include/ibuf0ibuf.ic
+++ b/include/ibuf0ibuf.ic
@@ -39,19 +39,11 @@ struct ibuf_data_struct{
 	ulint		n_merged_recs;/* number of records merged */
 };
 
-/* If the ibuf meter exceeds this value, then the suitable inserts are made to
-the insert buffer instead of directly to the disk page */
-#define IBUF_THRESHOLD	50
-
 struct ibuf_struct{
 	ulint		size;		/* current size of the ibuf index
 					trees in pages */
 	ulint		max_size;	/* recommended maximum size in pages
 					for the ibuf index tree */
-	ulint		meter;		/* heuristic meter which measures
-					desirability of doing inserts to the
-					insert buffer instead of directly to
-					the disk page */
 	UT_LIST_BASE_NODE_T(ibuf_data_t) data_list;
 					/* list of ibuf data structs for
 					each tablespace */
@@ -89,8 +81,7 @@ ibuf_should_try(
 {
 	if (!dict_index_is_clust(index)
 		&& !dict_table_zip_size(index->table)
-		&& (ignore_sec_unique || !(index->type & DICT_UNIQUE))
-		&& ibuf->meter > IBUF_THRESHOLD) {
+		&& (ignore_sec_unique || !(index->type & DICT_UNIQUE))) {
 
 		ibuf_flush_count++;
 
diff --git a/include/srv0srv.h b/include/srv0srv.h
index dc1f2d96d9d..9b617841f4c 100644
--- a/include/srv0srv.h
+++ b/include/srv0srv.h
@@ -80,7 +80,7 @@ extern ulint	srv_n_log_groups;
 extern ulint	srv_n_log_files;
 extern ulint	srv_log_file_size;
 extern ulint	srv_log_buffer_size;
-extern ulint	srv_flush_log_at_trx_commit;
+extern ulong	srv_flush_log_at_trx_commit;
 
 extern byte	srv_latin1_ordering[256];/* The sort order table of the latin1
 					character set */
diff --git a/log/log0log.c b/log/log0log.c
index 96d3fc06fd8..a8911d6ffd4 100644
--- a/log/log0log.c
+++ b/log/log0log.c
@@ -720,7 +720,7 @@ failure:
 "InnoDB: To get mysqld to start up, set innodb_thread_concurrency in my.cnf\n"
 "InnoDB: to a lower value, for example, to 8. After an ERROR-FREE shutdown\n"
 "InnoDB: of mysqld you can adjust the size of ib_logfiles, as explained in\n"
-"InnoDB: http://dev.mysql.com/doc/mysql/en/Adding_and_removing.html\n"
+"InnoDB: http://dev.mysql.com/doc/refman/5.1/en/adding-and-removing.html\n"
 "InnoDB: Cannot continue operation. Calling exit(1).\n",
 			(ulong)srv_thread_concurrency);
 
diff --git a/log/log0recv.c b/log/log0recv.c
index 58236ae41ec..b51118690a6 100644
--- a/log/log0recv.c
+++ b/log/log0recv.c
@@ -543,7 +543,7 @@ recv_find_max_checkpoint(
 "InnoDB: the problem may be that during an earlier attempt you managed\n"
 "InnoDB: to create the InnoDB data files, but log file creation failed.\n"
 "InnoDB: If that is the case, please refer to\n"
-"InnoDB: http://dev.mysql.com/doc/mysql/en/Error_creating_InnoDB.html\n");
+"InnoDB: http://dev.mysql.com/doc/refman/5.1/en/error-creating-innodb.html\n");
 		return(DB_ERROR);
 	}
 
@@ -1997,7 +1997,7 @@ recv_report_corrupt_log(
 	"InnoDB: far enough in recovery! Please run CHECK TABLE\n"
 	"InnoDB: on your InnoDB tables to check that they are ok!\n"
 	"InnoDB: If mysqld crashes after this recovery, look at\n"
-	"InnoDB: http://dev.mysql.com/doc/mysql/en/Forcing_recovery.html\n"
+	"InnoDB: http://dev.mysql.com/doc/refman/5.1/en/forcing-recovery.html\n"
 	"InnoDB: about forcing recovery.\n", stderr);
 
 	fflush(stderr);
diff --git a/mem/mem0mem.c b/mem/mem0mem.c
index 3c42c1d0fff..b11b574d80d 100644
--- a/mem/mem0mem.c
+++ b/mem/mem0mem.c
@@ -144,7 +144,7 @@ mem_heap_cat(
 	void*	res = mem_heap_alloc(heap, len1 + len2);
 
 	memcpy(res, b1, len1);
-	memcpy(res + len1, b2, len2);
+	memcpy((char*)res + len1, b2, len2);
 
 	return(res);
 }
diff --git a/mysql-test/innodb.result b/mysql-test/innodb.result
index 70c575b5398..bd3ce48f6c0 100644
--- a/mysql-test/innodb.result
+++ b/mysql-test/innodb.result
@@ -1465,8 +1465,8 @@ Error	1146	Table 'test.t4' doesn't exist
 drop table t1,t2,t3;
 create table t1 (id int,  name char(10) not null,  name2 char(10) not null) engine=innodb;
 insert into t1 values(1,'first','fff'),(2,'second','sss'),(3,'third','ttt');
-select name2 from t1  union all  select name from t1 union all select id from t1;
-name2
+select trim(name2) from t1  union all  select trim(name) from t1 union all select trim(id) from t1;
+trim(name2)
 fff
 sss
 ttt
@@ -1767,6 +1767,21 @@ select count(*) from t1 where x = 18446744073709551601;
 count(*)
 1
 drop table t1;
+show status like "Innodb_buffer_pool_pages_total";
+Variable_name	Value
+Innodb_buffer_pool_pages_total	512
+show status like "Innodb_page_size";
+Variable_name	Value
+Innodb_page_size	16384
+show status like "Innodb_rows_deleted";
+Variable_name	Value
+Innodb_rows_deleted	2070
+show status like "Innodb_rows_inserted";
+Variable_name	Value
+Innodb_rows_inserted	31727
+show status like "Innodb_rows_updated";
+Variable_name	Value
+Innodb_rows_updated	29530
 show status like "Innodb_row_lock_waits";
 Variable_name	Value
 Innodb_row_lock_waits	0
@@ -1799,7 +1814,7 @@ Variable_name	Value
 innodb_sync_spin_loops	20
 show variables like "innodb_thread_concurrency";
 Variable_name	Value
-innodb_thread_concurrency	20
+innodb_thread_concurrency	8
 set global innodb_thread_concurrency=1001;
 show variables like "innodb_thread_concurrency";
 Variable_name	Value
@@ -1807,7 +1822,7 @@ innodb_thread_concurrency	1000
 set global innodb_thread_concurrency=0;
 show variables like "innodb_thread_concurrency";
 Variable_name	Value
-innodb_thread_concurrency	1
+innodb_thread_concurrency	0
 set global innodb_thread_concurrency=16;
 show variables like "innodb_thread_concurrency";
 Variable_name	Value
@@ -3397,3 +3412,47 @@ commit;
 drop table t1, t2, t3, t5, t6, t8, t9;
 CREATE TABLE t1 (DB_ROW_ID int) engine=innodb;
 ERROR HY000: Can't create table 'test.t1' (errno: -1)
+CREATE TABLE t1 (
+a BIGINT(20) NOT NULL,
+PRIMARY KEY  (a)
+) ENGINE=INNODB DEFAULT CHARSET=UTF8;
+CREATE TABLE t2 (
+a BIGINT(20) NOT NULL,
+b VARCHAR(128) NOT NULL,
+c TEXT NOT NULL,
+PRIMARY KEY  (a,b),
+KEY idx_t2_b_c (b,c(200)),
+CONSTRAINT t_fk FOREIGN KEY (a) REFERENCES t1 (a) 
+ON DELETE CASCADE
+) ENGINE=INNODB DEFAULT CHARSET=UTF8;
+INSERT INTO t1 VALUES (1);
+INSERT INTO t2 VALUES (1, 'bar', 'vbar');
+INSERT INTO t2 VALUES (1, 'BAR2', 'VBAR');
+INSERT INTO t2 VALUES (1, 'bar_bar', 'bibi');
+INSERT INTO t2 VALUES (1, 'customer_over', '1');
+SELECT * FROM t2 WHERE b = 'customer_over';
+a	b	c
+1	customer_over	1
+SELECT * FROM t2 WHERE BINARY b = 'customer_over';
+a	b	c
+1	customer_over	1
+SELECT DISTINCT p0.a FROM t2 p0 WHERE p0.b = 'customer_over';
+a
+1
+/* Bang: Empty result set, above was expected: */
+SELECT DISTINCT p0.a FROM t2 p0 WHERE BINARY p0.b = 'customer_over';
+a
+1
+SELECT p0.a FROM t2 p0 WHERE BINARY p0.b = 'customer_over';
+a
+1
+drop table t2, t1;
+create table t1 (g geometry not null, spatial gk(g)) engine=innodb;
+ERROR HY000: The used table type doesn't support SPATIAL indexes
+CREATE TABLE t1 ( a int ) ENGINE=innodb;
+BEGIN;
+INSERT INTO t1 VALUES (1);
+OPTIMIZE TABLE t1;
+Table	Op	Msg_type	Msg_text
+test.t1	optimize	status	OK
+DROP TABLE t1;
diff --git a/mysql-test/innodb.test b/mysql-test/innodb.test
index 0dc9627944b..1a2afad3b44 100644
--- a/mysql-test/innodb.test
+++ b/mysql-test/innodb.test
@@ -1071,7 +1071,7 @@ drop table t1,t2,t3;
 #
 create table t1 (id int,  name char(10) not null,  name2 char(10) not null) engine=innodb;
 insert into t1 values(1,'first','fff'),(2,'second','sss'),(3,'third','ttt');
-select name2 from t1  union all  select name from t1 union all select id from t1;
+select trim(name2) from t1  union all  select trim(name) from t1 union all select trim(id) from t1;
 drop table t1;
 
 #
@@ -1295,6 +1295,15 @@ select * from t1 where x > -16;
 select count(*) from t1 where x = 18446744073709551601;
 drop table t1;
 
+
+# Test for testable InnoDB status variables. This test
+# uses previous ones(pages_created, rows_deleted, ...).
+show status like "Innodb_buffer_pool_pages_total";
+show status like "Innodb_page_size";
+show status like "Innodb_rows_deleted";
+show status like "Innodb_rows_inserted";
+show status like "Innodb_rows_updated";
+
 # Test for row locks InnoDB status variables.
 show status like "Innodb_row_lock_waits";
 show status like "Innodb_row_lock_current_waits";
@@ -2443,3 +2452,66 @@ drop table t1, t2, t3, t5, t6, t8, t9;
 # bug 18934, "InnoDB crashes when table uses column names like DB_ROW_ID"
 --error 1005
 CREATE TABLE t1 (DB_ROW_ID int) engine=innodb;
+
+#
+# Bug #17152: Wrong result with BINARY comparison on aliased column
+#
+
+CREATE TABLE t1 (
+   a BIGINT(20) NOT NULL,
+    PRIMARY KEY  (a)
+ ) ENGINE=INNODB DEFAULT CHARSET=UTF8;
+
+CREATE TABLE t2 (
+  a BIGINT(20) NOT NULL,
+  b VARCHAR(128) NOT NULL,
+  c TEXT NOT NULL,
+  PRIMARY KEY  (a,b),
+  KEY idx_t2_b_c (b,c(200)),
+  CONSTRAINT t_fk FOREIGN KEY (a) REFERENCES t1 (a) 
+   ON DELETE CASCADE
+ ) ENGINE=INNODB DEFAULT CHARSET=UTF8;
+
+INSERT INTO t1 VALUES (1);
+INSERT INTO t2 VALUES (1, 'bar', 'vbar');
+INSERT INTO t2 VALUES (1, 'BAR2', 'VBAR');
+INSERT INTO t2 VALUES (1, 'bar_bar', 'bibi');
+INSERT INTO t2 VALUES (1, 'customer_over', '1');
+
+SELECT * FROM t2 WHERE b = 'customer_over';
+SELECT * FROM t2 WHERE BINARY b = 'customer_over';
+SELECT DISTINCT p0.a FROM t2 p0 WHERE p0.b = 'customer_over';
+/* Bang: Empty result set, above was expected: */
+SELECT DISTINCT p0.a FROM t2 p0 WHERE BINARY p0.b = 'customer_over';
+SELECT p0.a FROM t2 p0 WHERE BINARY p0.b = 'customer_over';
+
+drop table t2, t1;
+
+#
+# Bug #15680 (SPATIAL key in innodb)
+#
+--error ER_TABLE_CANT_HANDLE_SPKEYS
+create table t1 (g geometry not null, spatial gk(g)) engine=innodb;
+
+#
+# Test optimize on table with open transaction
+#
+
+CREATE TABLE t1 ( a int ) ENGINE=innodb;
+BEGIN;
+INSERT INTO t1 VALUES (1);
+OPTIMIZE TABLE t1;
+DROP TABLE t1;
+
+#######################################################################
+#                                                                     #
+# Please, DO NOT TOUCH this file as well as the innodb.result file.   #
+# These files are to be modified ONLY BY INNOBASE guys.               #
+#                                                                     #
+# Use innodb_mysql.[test|result] files instead.                       #
+#                                                                     #
+# If nevertheless you need to make some changes here, please, forward #
+# your commit message To: dev@innodb.com Cc: dev-innodb@mysql.com     #
+# (otherwise your changes may be erased).                             #
+#                                                                     #
+#######################################################################
diff --git a/mysql-test/innodb_gis.result b/mysql-test/innodb_gis.result
index 0222c462923..09f0aebaefa 100644
--- a/mysql-test/innodb_gis.result
+++ b/mysql-test/innodb_gis.result
@@ -233,8 +233,8 @@ fid	AsText(Envelope(g))
 120	POLYGON((0 0,10 0,10 10,0 10,0 0))
 121	POLYGON((3 6,44 6,44 9,3 9,3 6))
 explain extended select Dimension(g), GeometryType(g), IsEmpty(g), AsText(Envelope(g)) from gis_geometry;
-id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	gis_geometry	ALL	NULL	NULL	NULL	NULL	21	
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	SIMPLE	gis_geometry	ALL	NULL	NULL	NULL	NULL	21	100.00	
 Warnings:
 Note	1003	select dimension(`test`.`gis_geometry`.`g`) AS `Dimension(g)`,geometrytype(`test`.`gis_geometry`.`g`) AS `GeometryType(g)`,isempty(`test`.`gis_geometry`.`g`) AS `IsEmpty(g)`,astext(envelope(`test`.`gis_geometry`.`g`)) AS `AsText(Envelope(g))` from `test`.`gis_geometry`
 SELECT fid, X(g) FROM gis_point ORDER by fid;
@@ -250,8 +250,8 @@ fid	Y(g)
 103	20
 104	20
 explain extended select X(g),Y(g) FROM gis_point;
-id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	gis_point	ALL	NULL	NULL	NULL	NULL	4	
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	SIMPLE	gis_point	ALL	NULL	NULL	NULL	NULL	4	100.00	
 Warnings:
 Note	1003	select x(`test`.`gis_point`.`g`) AS `X(g)`,y(`test`.`gis_point`.`g`) AS `Y(g)` from `test`.`gis_point`
 SELECT fid, AsText(StartPoint(g)) FROM gis_line ORDER by fid;
@@ -285,8 +285,8 @@ fid	IsClosed(g)
 106	1
 107	0
 explain extended select AsText(StartPoint(g)),AsText(EndPoint(g)),GLength(g),NumPoints(g),AsText(PointN(g, 2)),IsClosed(g) FROM gis_line;
-id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	gis_line	ALL	NULL	NULL	NULL	NULL	3	
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	SIMPLE	gis_line	ALL	NULL	NULL	NULL	NULL	3	100.00	
 Warnings:
 Note	1003	select astext(startpoint(`test`.`gis_line`.`g`)) AS `AsText(StartPoint(g))`,astext(endpoint(`test`.`gis_line`.`g`)) AS `AsText(EndPoint(g))`,glength(`test`.`gis_line`.`g`) AS `GLength(g)`,numpoints(`test`.`gis_line`.`g`) AS `NumPoints(g)`,astext(pointn(`test`.`gis_line`.`g`,2)) AS `AsText(PointN(g, 2))`,isclosed(`test`.`gis_line`.`g`) AS `IsClosed(g)` from `test`.`gis_line`
 SELECT fid, AsText(Centroid(g)) FROM gis_polygon ORDER by fid;
@@ -315,8 +315,8 @@ fid	AsText(InteriorRingN(g, 1))
 109	LINESTRING(10 10,20 10,20 20,10 20,10 10)
 110	NULL
 explain extended select AsText(Centroid(g)),Area(g),AsText(ExteriorRing(g)),NumInteriorRings(g),AsText(InteriorRingN(g, 1)) FROM gis_polygon;
-id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	gis_polygon	ALL	NULL	NULL	NULL	NULL	3	
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	SIMPLE	gis_polygon	ALL	NULL	NULL	NULL	NULL	3	100.00	
 Warnings:
 Note	1003	select astext(centroid(`test`.`gis_polygon`.`g`)) AS `AsText(Centroid(g))`,area(`test`.`gis_polygon`.`g`) AS `Area(g)`,astext(exteriorring(`test`.`gis_polygon`.`g`)) AS `AsText(ExteriorRing(g))`,numinteriorrings(`test`.`gis_polygon`.`g`) AS `NumInteriorRings(g)`,astext(interiorringn(`test`.`gis_polygon`.`g`,1)) AS `AsText(InteriorRingN(g, 1))` from `test`.`gis_polygon`
 SELECT fid, IsClosed(g) FROM gis_multi_line ORDER by fid;
@@ -354,8 +354,8 @@ fid	NumGeometries(g)
 120	2
 121	2
 explain extended SELECT fid, NumGeometries(g) from gis_multi_point;
-id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	gis_multi_point	ALL	NULL	NULL	NULL	NULL	3	
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	SIMPLE	gis_multi_point	ALL	NULL	NULL	NULL	NULL	3	100.00	
 Warnings:
 Note	1003	select `test`.`gis_multi_point`.`fid` AS `fid`,numgeometries(`test`.`gis_multi_point`.`g`) AS `NumGeometries(g)` from `test`.`gis_multi_point`
 SELECT fid, AsText(GeometryN(g, 2)) from gis_multi_point ORDER by fid;
@@ -382,8 +382,8 @@ fid	AsText(GeometryN(g, 1))
 120	POINT(0 0)
 121	POINT(44 6)
 explain extended SELECT fid, AsText(GeometryN(g, 2)) from gis_multi_point;
-id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	gis_multi_point	ALL	NULL	NULL	NULL	NULL	3	
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	SIMPLE	gis_multi_point	ALL	NULL	NULL	NULL	NULL	3	100.00	
 Warnings:
 Note	1003	select `test`.`gis_multi_point`.`fid` AS `fid`,astext(geometryn(`test`.`gis_multi_point`.`g`,2)) AS `AsText(GeometryN(g, 2))` from `test`.`gis_multi_point`
 SELECT g1.fid as first, g2.fid as second,
@@ -401,9 +401,9 @@ Within(g1.g, g2.g) as w, Contains(g1.g, g2.g) as c, Overlaps(g1.g, g2.g) as o,
 Equals(g1.g, g2.g) as e, Disjoint(g1.g, g2.g) as d, Touches(g1.g, g2.g) as t,
 Intersects(g1.g, g2.g) as i, Crosses(g1.g, g2.g) as r
 FROM gis_geometrycollection g1, gis_geometrycollection g2 ORDER BY first, second;
-id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	g1	ALL	NULL	NULL	NULL	NULL	2	Using temporary; Using filesort
-1	SIMPLE	g2	ALL	NULL	NULL	NULL	NULL	2	
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	SIMPLE	g1	ALL	NULL	NULL	NULL	NULL	2	100.00	Using temporary; Using filesort
+1	SIMPLE	g2	ALL	NULL	NULL	NULL	NULL	2	100.00	
 Warnings:
 Note	1003	select `test`.`g1`.`fid` AS `first`,`test`.`g2`.`fid` AS `second`,within(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `w`,contains(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `c`,overlaps(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `o`,equals(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `e`,disjoint(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `d`,touches(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `t`,intersects(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `i`,crosses(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `r` from `test`.`gis_geometrycollection` `g1` join `test`.`gis_geometrycollection` `g2` order by `test`.`g1`.`fid`,`test`.`g2`.`fid`
 DROP TABLE gis_point, gis_line, gis_polygon, gis_multi_point, gis_multi_line, gis_multi_polygon, gis_geometrycollection, gis_geometry;
diff --git a/mysql-test/innodb_mysql.result b/mysql-test/innodb_mysql.result
index 918f1c2c7c5..9f177e99a17 100644
--- a/mysql-test/innodb_mysql.result
+++ b/mysql-test/innodb_mysql.result
@@ -1,4 +1,10 @@
 drop table if exists t1,t2,t1m,t1i,t2m,t2i,t4;
+create table t1(f1 varchar(800) binary not null, key(f1)) engine = innodb 
+character set utf8 collate utf8_general_ci;
+Warnings:
+Warning	1071	Specified key was too long; max key length is 765 bytes
+insert into t1 values('aaa');
+drop table t1;
 create table t1 (
 c_id int(11) not null default '0',
 org_id int(11) default null,
@@ -54,6 +60,35 @@ c.c_id = 218 and expiredate is null;
 slai_id
 12
 drop table t1, t2;
+CREATE TABLE t1 (a int, b int, KEY b (b)) Engine=InnoDB;
+CREATE TABLE t2 (a int, b int, PRIMARY KEY  (a,b)) Engine=InnoDB;
+CREATE TABLE t3 (a int, b int, c int, PRIMARY KEY  (a), 
+UNIQUE KEY b (b,c), KEY a (a,b,c)) Engine=InnoDB;
+INSERT INTO t1 VALUES (1, 1);
+INSERT INTO t1 SELECT a + 1, b + 1 FROM t1;
+INSERT INTO t1 SELECT a + 2, b + 2 FROM t1;
+INSERT INTO t2 VALUES (1,1),(1,2),(1,3),(1,4),(1,5),(1,6),(1,7),(1,8);
+INSERT INTO t2 SELECT a + 1, b FROM t2;
+DELETE FROM t2 WHERE a = 1 AND b < 2;
+INSERT INTO t3 VALUES (1,1,1),(2,1,2);
+INSERT INTO t3 SELECT a + 2, a + 2, 3 FROM t3;
+INSERT INTO t3 SELECT a + 4, a + 4, 3 FROM t3;
+SELECT STRAIGHT_JOIN SQL_NO_CACHE t1.b, t1.a FROM t1, t3, t2 WHERE 
+t3.a = t2.a AND t2.b = t1.a AND t3.b = 1 AND t3.c IN (1, 2) 
+ORDER BY t1.b LIMIT 2;
+b	a
+1	1
+2	2
+SELECT STRAIGHT_JOIN SQL_NO_CACHE t1.b, t1.a FROM t1, t3, t2 WHERE 
+t3.a = t2.a AND t2.b = t1.a AND t3.b = 1 AND t3.c IN (1, 2) 
+ORDER BY t1.b LIMIT 5;
+b	a
+1	1
+2	2
+2	2
+3	3
+3	3
+DROP TABLE t1, t2, t3;
 create table t1m (a int) engine=myisam;
 create table t1i (a int) engine=innodb;
 create table t2m (a int) engine=myisam;
@@ -326,3 +361,9 @@ ERROR 23000: Duplicate entry '1' for key 'PRIMARY'
 SELECT * from t2;
 a	b
 drop table t1,t2;
+create table t1(f1 varchar(800) binary not null, key(f1)) engine = innodb 
+character set utf8 collate utf8_general_ci;
+Warnings:
+Warning	1071	Specified key was too long; max key length is 765 bytes
+insert into t1 values('aaa');
+drop table t1;
diff --git a/mysql-test/innodb_mysql.test b/mysql-test/innodb_mysql.test
index 0a9eeb049b0..2be53b58a39 100644
--- a/mysql-test/innodb_mysql.test
+++ b/mysql-test/innodb_mysql.test
@@ -4,6 +4,14 @@
 drop table if exists t1,t2,t1m,t1i,t2m,t2i,t4;
 --enable_warnings
 
+#
+# Bug#17530: Incorrect key truncation on table creation caused server crash.
+#
+create table t1(f1 varchar(800) binary not null, key(f1)) engine = innodb 
+  character set utf8 collate utf8_general_ci;
+insert into t1 values('aaa');
+drop table t1;
+
 # BUG#16798: Uninitialized row buffer reads in ref-or-null optimizer
 # (repeatable only w/innodb).
 create table t1 (
@@ -58,6 +66,38 @@ where
 
 drop table t1, t2;
 
+#
+# Bug#17212: results not sorted correctly by ORDER BY when using index
+# (repeatable only w/innodb because of index props)
+#
+CREATE TABLE t1 (a int, b int, KEY b (b)) Engine=InnoDB;
+CREATE TABLE t2 (a int, b int, PRIMARY KEY  (a,b)) Engine=InnoDB;
+CREATE TABLE t3 (a int, b int, c int, PRIMARY KEY  (a), 
+  UNIQUE KEY b (b,c), KEY a (a,b,c)) Engine=InnoDB;
+
+INSERT INTO t1 VALUES (1, 1);
+INSERT INTO t1 SELECT a + 1, b + 1 FROM t1; 
+INSERT INTO t1 SELECT a + 2, b + 2 FROM t1; 
+
+INSERT INTO t2 VALUES (1,1),(1,2),(1,3),(1,4),(1,5),(1,6),(1,7),(1,8);
+INSERT INTO t2 SELECT a + 1, b FROM t2;
+DELETE FROM t2 WHERE a = 1 AND b < 2;
+
+INSERT INTO t3 VALUES (1,1,1),(2,1,2);
+INSERT INTO t3 SELECT a + 2, a + 2, 3 FROM t3;
+INSERT INTO t3 SELECT a + 4, a + 4, 3 FROM t3;
+
+# demonstrate a problem when a must-use-sort table flag
+# (sort_by_table=1) is being neglected.
+SELECT STRAIGHT_JOIN SQL_NO_CACHE t1.b, t1.a FROM t1, t3, t2 WHERE 
+  t3.a = t2.a AND t2.b = t1.a AND t3.b = 1 AND t3.c IN (1, 2) 
+  ORDER BY t1.b LIMIT 2;
+
+# demonstrate the problem described in the bug report
+SELECT STRAIGHT_JOIN SQL_NO_CACHE t1.b, t1.a FROM t1, t3, t2 WHERE 
+  t3.a = t2.a AND t2.b = t1.a AND t3.b = 1 AND t3.c IN (1, 2) 
+  ORDER BY t1.b LIMIT 5;
+DROP TABLE t1, t2, t3;
 #
 # Bug #12882  	min/max inconsistent on empty table
 #
@@ -272,3 +312,11 @@ TRUNCATE table t2;
 INSERT INTO t2 select * from t1;
 SELECT * from t2;
 drop table t1,t2;
+
+#
+# Bug#17530: Incorrect key truncation on table creation caused server crash.
+#
+create table t1(f1 varchar(800) binary not null, key(f1)) engine = innodb 
+  character set utf8 collate utf8_general_ci;
+insert into t1 values('aaa');
+drop table t1;
diff --git a/mysql-test/innodb_unsafe_binlog-master.opt b/mysql-test/innodb_unsafe_binlog-master.opt
index f339fb1beb1..9581c225d6d 100644
--- a/mysql-test/innodb_unsafe_binlog-master.opt
+++ b/mysql-test/innodb_unsafe_binlog-master.opt
@@ -1 +1 @@
---innodb_locks_unsafe_for_binlog=true --innodb_lock_wait_timeout=1
\ No newline at end of file
+--innodb_locks_unsafe_for_binlog=true --innodb_lock_wait_timeout=1
diff --git a/os/os0file.c b/os/os0file.c
index 68bf02e833d..6e5079e25bb 100644
--- a/os/os0file.c
+++ b/os/os0file.c
@@ -248,7 +248,7 @@ os_file_get_last_error(
 			fprintf(stderr,
   "InnoDB: Some operating system error numbers are described at\n"
   "InnoDB: "
-  "http://dev.mysql.com/doc/mysql/en/Operating_System_error_codes.html\n");
+  "http://dev.mysql.com/doc/refman/5.1/en/operating-system-error-codes.html\n");
 		}
 	}
 
@@ -295,7 +295,7 @@ os_file_get_last_error(
 			fprintf(stderr,
   "InnoDB: Some operating system error numbers are described at\n"
   "InnoDB: "
-  "http://dev.mysql.com/doc/mysql/en/Operating_System_error_codes.html\n");
+  "http://dev.mysql.com/doc/refman/5.1/en/operating-system-error-codes.html\n");
 		}
 	}
 
@@ -688,7 +688,7 @@ next_file:
 /* TODO: test Windows symlinks */
 /* TODO: MySQL has apparently its own symlink implementation in Windows,
 dbname.sym can redirect a database directory:
-http://www.mysql.com/doc/en/Windows_symbolic_links.html */
+http://dev.mysql.com/doc/refman/5.1/en/windows-symbolic-links.html */
 			info->type = OS_FILE_TYPE_LINK;
 		} else if (lpFindFileData->dwFileAttributes
 						& FILE_ATTRIBUTE_DIRECTORY) {
@@ -2343,7 +2343,7 @@ retry:
 "InnoDB: offset %lu %lu. Operating system error number %lu.\n"
 "InnoDB: Some operating system error numbers are described at\n"
 "InnoDB: "
-"http://dev.mysql.com/doc/mysql/en/Operating_System_error_codes.html\n",
+"http://dev.mysql.com/doc/refman/5.1/en/operating-system-error-codes.html\n",
 			name, (ulong) offset_high, (ulong) offset,
 			(ulong) GetLastError());
 
@@ -2408,7 +2408,7 @@ retry:
 		fprintf(stderr,
 "InnoDB: Some operating system error numbers are described at\n"
 "InnoDB: "
-"http://dev.mysql.com/doc/mysql/en/Operating_System_error_codes.html\n");
+"http://dev.mysql.com/doc/refman/5.1/en/operating-system-error-codes.html\n");
 
 		os_has_said_disk_full = TRUE;
 	}
@@ -2444,7 +2444,7 @@ retry:
 		fprintf(stderr,
 "InnoDB: Some operating system error numbers are described at\n"
 "InnoDB: "
-"http://dev.mysql.com/doc/mysql/en/Operating_System_error_codes.html\n");
+"http://dev.mysql.com/doc/refman/5.1/en/operating-system-error-codes.html\n");
 
 		os_has_said_disk_full = TRUE;
 	}
diff --git a/row/row0mysql.c b/row/row0mysql.c
index a1539bf19bb..339709506c3 100644
--- a/row/row0mysql.c
+++ b/row/row0mysql.c
@@ -54,27 +54,6 @@ static const char S_innodb_tablespace_monitor[] = "innodb_tablespace_monitor";
 static const char S_innodb_table_monitor[] = "innodb_table_monitor";
 static const char S_innodb_mem_validate[] = "innodb_mem_validate";
 
-/* Name suffix for recovered orphaned temporary tables */
-static const char S_recover_innodb_tmp_table[] = "_recover_innodb_tmp_table";
-/***********************************************************************
-Determine if the given name ends in the suffix reserved for recovered
-orphaned temporary tables. */
-static
-ibool
-row_mysql_is_recovered_tmp_table(
-/*=============================*/
-				 /* out: TRUE if table name ends in
-				 the reserved suffix */
-	const char*	name)
-{
-	ulint	namelen	= strlen(name) + 1;
-	return(namelen >= sizeof S_recover_innodb_tmp_table
-		&& !memcmp(name + namelen -
-			sizeof S_recover_innodb_tmp_table,
-			S_recover_innodb_tmp_table,
-			sizeof S_recover_innodb_tmp_table));
-}
-
 /***********************************************************************
 Determine if the given name is a name reserved for MySQL system tables. */
 static
@@ -550,7 +529,7 @@ handle_new_error:
 	"InnoDB: tables and recreate the whole InnoDB tablespace.\n"
 	"InnoDB: If the mysqld server crashes after the startup or when\n"
 	"InnoDB: you dump the tables, look at\n"
-	"InnoDB: http://dev.mysql.com/doc/mysql/en/Forcing_recovery.html"
+	    "InnoDB: http://dev.mysql.com/doc/refman/5.1/en/forcing-recovery.html"
 	" for help.\n", stderr);
 
 	} else {
@@ -1083,7 +1062,7 @@ row_insert_for_mysql(
 "InnoDB: Have you deleted the .ibd file from the database directory under\n"
 "InnoDB: the MySQL datadir, or have you used DISCARD TABLESPACE?\n"
 "InnoDB: Look from\n"
-"http://dev.mysql.com/doc/mysql/en/InnoDB_troubleshooting_datadict.html\n"
+"InnoDB: http://dev.mysql.com/doc/refman/5.1/en/innodb-troubleshooting.html\n"
 "InnoDB: how you can resolve the problem.\n",
 				prebuilt->table->name);
 		return(DB_ERROR);
@@ -1319,7 +1298,7 @@ row_update_for_mysql(
 "InnoDB: Have you deleted the .ibd file from the database directory under\n"
 "InnoDB: the MySQL datadir, or have you used DISCARD TABLESPACE?\n"
 "InnoDB: Look from\n"
-"http://dev.mysql.com/doc/mysql/en/InnoDB_troubleshooting_datadict.html\n"
+"InnoDB: http://dev.mysql.com/doc/refman/5.1/en/innodb-troubleshooting.html\n"
 "InnoDB: how you can resolve the problem.\n",
 				prebuilt->table->name);
 		return(DB_ERROR);
@@ -1659,48 +1638,6 @@ row_get_mysql_key_number_for_index(
 	return(i);
 }
 
-/*************************************************************************
-Recovers an orphaned tmp table inside InnoDB by renaming it. In the table
-name #sql becomes rsql, and "_recover_innodb_tmp_table" is catenated to
-the end of name. table->name should be of the form
-"dbname/rsql..._recover_innodb_tmp_table". This renames a table whose
-name is "#sql..." */
-static
-int
-row_mysql_recover_tmp_table(
-/*========================*/
-				/* out: error code or DB_SUCCESS */
-	dict_table_t*	table,	/* in: table definition */
-	trx_t*		trx)	/* in: transaction handle */
-{
-	const char*	ptr	= strstr(table->name, "/rsql");
-
-	if (!ptr) {
-		/* table name does not begin with "/rsql" */
-		dict_mem_table_free(table);
-		trx_commit_for_mysql(trx);
-
-		return(DB_ERROR);
-	}
-	else {
-		int	status;
-		int	namelen = (int) strlen(table->name);
-		char*	old_name = mem_strdupl(table->name, namelen);
-		/* replace "rsql" with "#sql" */
-		old_name[ptr - table->name + 1] = '#';
-		/* remove "_recover_innodb_tmp_table" suffix */
-		ut_ad(namelen > (int) sizeof S_recover_innodb_tmp_table);
-		ut_ad(!strcmp(old_name + namelen + 1 -
-			sizeof S_recover_innodb_tmp_table,
-			S_recover_innodb_tmp_table));
-		old_name[namelen + 1 - sizeof S_recover_innodb_tmp_table] = 0;
-		status = row_rename_table_for_mysql(old_name,
-						table->name, trx);
-		mem_free(old_name);
-		return(status);
-	}
-}
-
 /*************************************************************************
 Locks the data dictionary in shared mode from modifications, for performing
 foreign key check, rollback, or other operation invisible to MySQL. */
@@ -1845,18 +1782,6 @@ row_create_table_for_mysql(
 
 	trx_start_if_not_started(trx);
 
-	if (row_mysql_is_recovered_tmp_table(table->name)) {
-
-		/* MySQL prevents accessing of tables whose name begins
-		with #sql, that is temporary tables. If mysqld crashes in
-		the middle of an ALTER TABLE, we may get an orphaned
-		#sql-table in the tablespace. We have here a special
-		mechanism to recover such tables by renaming them to
-		rsql... */
-
-		return(row_mysql_recover_tmp_table(table, trx));
-	}
-
 	/* The table name is prefixed with the database name and a '/'.
 	Certain table names starting with 'innodb_' have their special
 	meaning regardless of the database name.  Thus, we need to
@@ -1968,8 +1893,8 @@ row_create_table_for_mysql(
      "InnoDB: Then MySQL thinks the table exists, and DROP TABLE will\n"
      "InnoDB: succeed.\n"
      "InnoDB: You can look for further help from\n"
-     "InnoDB: http://dev.mysql.com/doc/mysql/en/"
-     "InnoDB_troubleshooting_datadict.html\n", stderr);
+"InnoDB: http://dev.mysql.com/doc/refman/5.1/en/innodb-troubleshooting.html\n",
+				stderr);
 		}
 
 		/* We may also get err == DB_ERROR if the .ibd file for the
@@ -2063,11 +1988,6 @@ row_create_index_for_mysql(
 		}
 	}
 
-	if (row_mysql_is_recovered_tmp_table(index->table_name)) {
-
-		return(DB_SUCCESS);
-	}
-
 	heap = mem_heap_create(512);
 
 	trx->dict_operation = TRUE;
@@ -2142,11 +2062,6 @@ row_table_add_foreign_constraints(
 
 	trx_start_if_not_started(trx);
 
-	if (row_mysql_is_recovered_tmp_table(name)) {
-
-		return(DB_SUCCESS);
-	}
-
 	trx->dict_operation = TRUE;
 
 	err = dict_create_foreign_constraints(trx, sql_string, name,
@@ -3054,8 +2969,8 @@ row_drop_table_for_mysql(
 	"InnoDB: Have you copied the .frm file of the table to the\n"
 	"InnoDB: MySQL database directory from another database?\n"
 	"InnoDB: You can look for further help from\n"
-	"InnoDB: http://dev.mysql.com/doc/mysql/en/"
-	"InnoDB_troubleshooting_datadict.html\n", stderr);
+"InnoDB: http://dev.mysql.com/doc/refman/5.1/en/innodb-troubleshooting.html\n",
+				stderr);
 		goto funct_exit;
 	}
 
@@ -3495,7 +3410,6 @@ row_rename_table_for_mysql(
 	mem_heap_t*	heap			= NULL;
 	const char**	constraints_to_drop	= NULL;
 	ulint		n_constraints_to_drop	= 0;
-	ibool		recovering_temp_table	= FALSE;
 	ibool		old_is_tmp, new_is_tmp;
 	pars_info_t*	info			= NULL;
 
@@ -3533,15 +3447,10 @@ row_rename_table_for_mysql(
 	old_is_tmp = row_is_mysql_tmp_table_name(old_name);
 	new_is_tmp = row_is_mysql_tmp_table_name(new_name);
 
-	if (row_mysql_is_recovered_tmp_table(new_name)) {
+	/* Serialize data dictionary operations with dictionary mutex:
+	no deadlocks can occur then in these operations */
 
-		recovering_temp_table = TRUE;
-	} else {
-		/* Serialize data dictionary operations with dictionary mutex:
-		no deadlocks can occur then in these operations */
-
-		row_mysql_lock_data_dictionary(trx);
-	}
+	row_mysql_lock_data_dictionary(trx);
 
 	table = dict_table_get_low(old_name);
 
@@ -3556,8 +3465,8 @@ row_rename_table_for_mysql(
 	"InnoDB: Have you copied the .frm file of the table to the\n"
 	"InnoDB: MySQL database directory from another database?\n"
 	"InnoDB: You can look for further help from\n"
-	"InnoDB: http://dev.mysql.com/doc/mysql/en/"
-	"InnoDB_troubleshooting_datadict.html\n", stderr);
+"InnoDB: http://dev.mysql.com/doc/refman/5.1/en/innodb-troubleshooting.html\n",
+				stderr);
 		goto funct_exit;
 	}
 
@@ -3570,8 +3479,8 @@ row_rename_table_for_mysql(
 		fputs(
 	" does not have an .ibd file in the database directory.\n"
 	"InnoDB: You can look for further help from\n"
-	"InnoDB: http://dev.mysql.com/doc/mysql/en/"
-	"InnoDB_troubleshooting_datadict.html\n", stderr);
+"InnoDB: http://dev.mysql.com/doc/refman/5.1/en/innodb-troubleshooting.html\n",
+			stderr);
 		goto funct_exit;
 	}
 
@@ -3719,8 +3628,7 @@ end:
 		fputs(" to it.\n"
      "InnoDB: Have you deleted the .frm file and not used DROP TABLE?\n"
      "InnoDB: You can look for further help from\n"
-     "InnoDB: http://dev.mysql.com/doc/mysql/en/"
-     "InnoDB_troubleshooting_datadict.html\n"
+"InnoDB: http://dev.mysql.com/doc/refman/5.1/en/innodb-troubleshooting.html\n"
      "InnoDB: If table ", stderr);
 			ut_print_name(stderr, trx, TRUE, new_name);
 			fputs(
@@ -3748,8 +3656,8 @@ end:
 			trx_general_rollback_for_mysql(trx, FALSE, NULL);
 			trx->error_state = DB_SUCCESS;
 			ut_print_timestamp(stderr);
-			fputs(" InnoDB: Error in table rename, cannot rename ",
-				stderr);
+			fputs(
+"  InnoDB: Error in table rename, cannot rename ", stderr);
 			ut_print_name(stderr, trx, TRUE, old_name);
 			fputs(" to ", stderr);
 			ut_print_name(stderr, trx, TRUE, new_name);
@@ -3797,10 +3705,7 @@ end:
 
 funct_exit:
 	trx_commit_for_mysql(trx);
-
-	if (!recovering_temp_table) {
-		row_mysql_unlock_data_dictionary(trx);
-	}
+	row_mysql_unlock_data_dictionary(trx);
 
 	if (UNIV_LIKELY_NULL(heap)) {
 		mem_heap_free(heap);
@@ -3968,7 +3873,7 @@ row_check_table_for_mysql(
 "InnoDB: Have you deleted the .ibd file from the database directory under\n"
 "InnoDB: the MySQL datadir, or have you used DISCARD TABLESPACE?\n"
 "InnoDB: Look from\n"
-"http://dev.mysql.com/doc/mysql/en/InnoDB_troubleshooting_datadict.html\n"
+"InnoDB: http://dev.mysql.com/doc/refman/5.1/en/innodb-troubleshooting.html\n"
 "InnoDB: how you can resolve the problem.\n",
 				prebuilt->table->name);
 		return(DB_ERROR);
diff --git a/row/row0sel.c b/row/row0sel.c
index 6ace428b5ba..7198d56b088 100644
--- a/row/row0sel.c
+++ b/row/row0sel.c
@@ -3237,7 +3237,7 @@ row_search_for_mysql(
 "InnoDB: Have you deleted the .ibd file from the database directory under\n"
 "InnoDB: the MySQL datadir, or have you used DISCARD TABLESPACE?\n"
 "InnoDB: Look from\n"
-"http://dev.mysql.com/doc/mysql/en/InnoDB_troubleshooting_datadict.html\n"
+"InnoDB: http://dev.mysql.com/doc/refman/5.1/en/innodb-troubleshooting.html\n"
 "InnoDB: how you can resolve the problem.\n",
 				prebuilt->table->name);
 
diff --git a/setup.sh b/setup.sh
index 62041d62712..d95be2bd9e2 100755
--- a/setup.sh
+++ b/setup.sh
@@ -35,7 +35,7 @@ do
   ln -s ../../../innodb/"$dir"* .
   cd ..
 done
-for file in configure.in Makefile.am
+for file in configure.in Makefile.am CMakeLists.txt
 do
   ln -s ../../innodb/"$file" .
 done
diff --git a/srv/srv0srv.c b/srv/srv0srv.c
index c7bff806674..a475db031a3 100644
--- a/srv/srv0srv.c
+++ b/srv/srv0srv.c
@@ -116,7 +116,7 @@ ulint	srv_n_log_groups	= ULINT_MAX;
 ulint	srv_n_log_files		= ULINT_MAX;
 ulint	srv_log_file_size	= ULINT_MAX;	/* size in database pages */
 ulint	srv_log_buffer_size	= ULINT_MAX;	/* size in database pages */
-ulint	srv_flush_log_at_trx_commit = 1;
+ulong	srv_flush_log_at_trx_commit = 1;
 
 byte	srv_latin1_ordering[256]	/* The sort order table of the latin1
 					character set. The following table is
diff --git a/srv/srv0start.c b/srv/srv0start.c
index 6d158dbfeb5..d6f98ce0ac0 100644
--- a/srv/srv0start.c
+++ b/srv/srv0start.c
@@ -1685,7 +1685,7 @@ NetWare. */
 "InnoDB: You have now successfully upgraded to the multiple tablespaces\n"
 "InnoDB: format. You should NOT DOWNGRADE to an earlier version of\n"
 "InnoDB: InnoDB! But if you absolutely need to downgrade, see\n"
-"InnoDB: http://dev.mysql.com/doc/mysql/en/Multiple_tablespaces.html\n"
+"InnoDB: http://dev.mysql.com/doc/refman/5.1/en/multiple-tablespaces.html\n"
 "InnoDB: for instructions.\n");
 	}
 
diff --git a/ut/ut0dbg.c b/ut/ut0dbg.c
index a9391cd3adc..87960b98556 100644
--- a/ut/ut0dbg.c
+++ b/ut/ut0dbg.c
@@ -42,7 +42,7 @@ ut_dbg_assertion_failed(
 {
 	ut_print_timestamp(stderr);
 	fprintf(stderr,
-		"InnoDB: Assertion failure in thread %lu"
+		"  InnoDB: Assertion failure in thread %lu"
 		" in file %s line %lu\n",
 		os_thread_pf(os_thread_get_curr_id()), file, line);
 	if (expr) {
@@ -56,7 +56,7 @@ ut_dbg_assertion_failed(
 "InnoDB: If you get repeated assertion failures or crashes, even\n"
 "InnoDB: immediately after the mysqld startup, there may be\n"
 "InnoDB: corruption in the InnoDB tablespace. Please refer to\n"
-"InnoDB: http://dev.mysql.com/doc/mysql/en/Forcing_recovery.html\n"
+"InnoDB: http://dev.mysql.com/doc/refman/5.1/en/forcing-recovery.html\n"
 "InnoDB: about forcing recovery.\n", stderr);
 #if defined(UNIV_SYNC_DEBUG) || !defined(UT_DBG_USE_ABORT)
 	ut_dbg_stop_threads = TRUE;