diff --git a/innobase/include/trx0trx.h b/innobase/include/trx0trx.h
index 6e98f22c34b..84d85fcaff6 100644
--- a/innobase/include/trx0trx.h
+++ b/innobase/include/trx0trx.h
@@ -262,7 +262,7 @@ void
 trx_print(
 /*======*/
 	char*	buf,	/* in/out: buffer where to print, must be at least
-			500 bytes */
+			800 bytes */
 	trx_t* trx); 	/* in: transaction */
 
 
diff --git a/innobase/lock/lock0lock.c b/innobase/lock/lock0lock.c
index 2f5ade656d9..9b3719867f0 100644
--- a/innobase/lock/lock0lock.c
+++ b/innobase/lock/lock0lock.c
@@ -3625,7 +3625,7 @@ lock_print_info(
 	trx = UT_LIST_GET_FIRST(trx_sys->mysql_trx_list);
 
 	while (trx) {
-		if (buf_end - buf < 600) {
+		if (buf_end - buf < 900) {
 			return;
 		}
 
@@ -3662,7 +3662,7 @@ loop:
 		return;
 	}
 
-	if (buf_end - buf < 600) {
+	if (buf_end - buf < 900) {
 		return;
 	}
 
diff --git a/innobase/trx/trx0trx.c b/innobase/trx/trx0trx.c
index 48b1ecc59f2..94a11042de5 100644
--- a/innobase/trx/trx0trx.c
+++ b/innobase/trx/trx0trx.c
@@ -1465,7 +1465,7 @@ void
 trx_print(
 /*======*/
 	char*	buf,	/* in/out: buffer where to print, must be at least
-			500 bytes */
+			800 bytes */
 	trx_t*	trx)	/* in: transaction */
 {
         char*   start_of_line;
diff --git a/sql/ha_innobase.cc b/sql/ha_innobase.cc
index 251e6c3ca7e..5e6d4b5f50c 100644
--- a/sql/ha_innobase.cc
+++ b/sql/ha_innobase.cc
@@ -260,7 +260,7 @@ void
 innobase_mysql_print_thd(
 /*=====================*/
 	char* buf,	/* in/out: buffer where to print, must be at least
-			300 bytes */
+			400 bytes */
         void* input_thd)/* in: pointer to a MySQL THD object */
 {
   	THD*  thd;
@@ -338,7 +338,7 @@ innobase_mysql_print_thd(
 	  buf=strnmov(buf, thd->query, 150);
   	}  
 	*buf='\n';
-	/* Here we should add '\0' to the nd of output to mark its end */
+	/* Here we should add '\0' to the end of output to mark its end */
 #endif
 }
 }