diff --git a/mysql-test/suite/sys_vars/r/transaction_alloc_block_size_basic.result b/mysql-test/suite/sys_vars/r/transaction_alloc_block_size_basic.result
index 719adb67573..ca192d0afa2 100644
--- a/mysql-test/suite/sys_vars/r/transaction_alloc_block_size_basic.result
+++ b/mysql-test/suite/sys_vars/r/transaction_alloc_block_size_basic.result
@@ -70,7 +70,7 @@ Warnings:
 Warning	1292	Truncated incorrect transaction_alloc_block_size value: '135217728'
 SELECT @@global.transaction_alloc_block_size;
 @@global.transaction_alloc_block_size
-134217728
+131072
 SET @@global.transaction_alloc_block_size = ON;
 ERROR 42000: Incorrect argument type to variable 'transaction_alloc_block_size'
 SET @@global.transaction_alloc_block_size = OFF;
@@ -102,7 +102,7 @@ Warnings:
 Warning	1292	Truncated incorrect transaction_alloc_block_size value: '135217728'
 SELECT @@session.transaction_alloc_block_size;
 @@session.transaction_alloc_block_size
-134217728
+131072
 SET @@session.transaction_alloc_block_size = ON;
 ERROR 42000: Incorrect argument type to variable 'transaction_alloc_block_size'
 SET @@session.transaction_alloc_block_size = OFF;
@@ -124,20 +124,22 @@ ERROR 42000: Incorrect argument type to variable 'transaction_alloc_block_size'
 SET @@session.transaction_alloc_block_size = 'test';
 ERROR 42000: Incorrect argument type to variable 'transaction_alloc_block_size'
 '#------------------FN_DYNVARS_005_06-----------------------#'
-SELECT @@global.transaction_alloc_block_size = VARIABLE_VALUE 
-FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES 
+SELECT @@global.transaction_alloc_block_size = VARIABLE_VALUE
+FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES
 WHERE VARIABLE_NAME='transaction_alloc_block_size';
 @@global.transaction_alloc_block_size = VARIABLE_VALUE
 1
 '#------------------FN_DYNVARS_005_07-----------------------#'
-SELECT @@session.transaction_alloc_block_size = VARIABLE_VALUE 
-FROM INFORMATION_SCHEMA.SESSION_VARIABLES 
+SELECT @@session.transaction_alloc_block_size = VARIABLE_VALUE
+FROM INFORMATION_SCHEMA.SESSION_VARIABLES
 WHERE VARIABLE_NAME='transaction_alloc_block_size';
 @@session.transaction_alloc_block_size = VARIABLE_VALUE
 1
 '#---------------------FN_DYNVARS_001_08----------------------#'
 SET @@transaction_alloc_block_size = 1024;
 SET @@global.transaction_alloc_block_size = 134217728;
+Warnings:
+Warning	1292	Truncated incorrect transaction_alloc_block_size value: '134217728'
 SELECT @@transaction_alloc_block_size = @@global.transaction_alloc_block_size;
 @@transaction_alloc_block_size = @@global.transaction_alloc_block_size
 0
diff --git a/mysql-test/suite/sys_vars/r/transaction_prealloc_size_basic.result b/mysql-test/suite/sys_vars/r/transaction_prealloc_size_basic.result
index be54302689d..122918dcd3d 100644
--- a/mysql-test/suite/sys_vars/r/transaction_prealloc_size_basic.result
+++ b/mysql-test/suite/sys_vars/r/transaction_prealloc_size_basic.result
@@ -114,16 +114,16 @@ Warnings:
 Warning	1292	Truncated incorrect transaction_prealloc_size value: '135217728'
 SELECT @@session.transaction_prealloc_size;
 @@session.transaction_prealloc_size
-134217728
+131072
 '#------------------FN_DYNVARS_005_06-----------------------#'
-SELECT @@global.transaction_prealloc_size = VARIABLE_VALUE 
-FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES 
+SELECT @@global.transaction_prealloc_size = VARIABLE_VALUE
+FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES
 WHERE VARIABLE_NAME='transaction_prealloc_size';
 @@global.transaction_prealloc_size = VARIABLE_VALUE
 1
 '#------------------FN_DYNVARS_005_07-----------------------#'
-SELECT @@session.transaction_prealloc_size = VARIABLE_VALUE 
-FROM INFORMATION_SCHEMA.SESSION_VARIABLES 
+SELECT @@session.transaction_prealloc_size = VARIABLE_VALUE
+FROM INFORMATION_SCHEMA.SESSION_VARIABLES
 WHERE VARIABLE_NAME='transaction_prealloc_size';
 @@session.transaction_prealloc_size = VARIABLE_VALUE
 1
diff --git a/mysql-test/suite/sys_vars/t/transaction_alloc_block_size_basic.test b/mysql-test/suite/sys_vars/t/transaction_alloc_block_size_basic.test
index 0faa95c8fe6..57325815877 100644
--- a/mysql-test/suite/sys_vars/t/transaction_alloc_block_size_basic.test
+++ b/mysql-test/suite/sys_vars/t/transaction_alloc_block_size_basic.test
@@ -5,7 +5,7 @@
 # Access Type: Dynamic                                                        #
 # Data Type: numeric                                                          #
 # Default Value: 8192                                                         #
-# Range: 1024-134217728                                                       #
+# Range: 1024-131072                                                          #
 #                                                                             #
 #                                                                             #
 # Creation Date: 2008-02-14                                                   #
@@ -84,7 +84,7 @@ SELECT @@global.transaction_alloc_block_size;
 ###################################################################
 # Change the value of variable to a valid value for SESSION Scope #
 ###################################################################
- 
+
 SET @@session.transaction_alloc_block_size = 1024;
 SELECT @@session.transaction_alloc_block_size;
 
@@ -159,8 +159,8 @@ SET @@session.transaction_alloc_block_size = 'test';
 ####################################################################
 
 
-SELECT @@global.transaction_alloc_block_size = VARIABLE_VALUE 
-FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES 
+SELECT @@global.transaction_alloc_block_size = VARIABLE_VALUE
+FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES
 WHERE VARIABLE_NAME='transaction_alloc_block_size';
 
 --echo '#------------------FN_DYNVARS_005_07-----------------------#'
@@ -168,8 +168,8 @@ WHERE VARIABLE_NAME='transaction_alloc_block_size';
 #  Check if the value in SESSION Table matches value in variable   #
 ####################################################################
 
-SELECT @@session.transaction_alloc_block_size = VARIABLE_VALUE 
-FROM INFORMATION_SCHEMA.SESSION_VARIABLES 
+SELECT @@session.transaction_alloc_block_size = VARIABLE_VALUE
+FROM INFORMATION_SCHEMA.SESSION_VARIABLES
 WHERE VARIABLE_NAME='transaction_alloc_block_size';
 
 
@@ -181,7 +181,7 @@ WHERE VARIABLE_NAME='transaction_alloc_block_size';
 SET @@transaction_alloc_block_size = 1024;
 SET @@global.transaction_alloc_block_size = 134217728;
 SELECT @@transaction_alloc_block_size = @@global.transaction_alloc_block_size;
- 
+
 
 --echo '#---------------------FN_DYNVARS_001_09----------------------#'
 ########################################################################
diff --git a/mysql-test/suite/sys_vars/t/transaction_prealloc_size_basic.test b/mysql-test/suite/sys_vars/t/transaction_prealloc_size_basic.test
index d3ff1db1c18..24fb6bc562e 100644
--- a/mysql-test/suite/sys_vars/t/transaction_prealloc_size_basic.test
+++ b/mysql-test/suite/sys_vars/t/transaction_prealloc_size_basic.test
@@ -5,7 +5,7 @@
 # Access Type: Dynamic                                                        #
 # Data Type: numeric                                                          #
 # Default Value: 4096                                                         #
-# Range: 1024-134217728                                                       #
+# Range: 1024-131072                                                          #
 #                                                                             #
 #                                                                             #
 # Creation Date: 2008-02-14                                                   #
@@ -79,7 +79,7 @@ SELECT @@global.transaction_prealloc_size;
 ###################################################################
 # Change the value of variable to a valid value for SESSION Scope #
 ###################################################################
- 
+
 SET @@session.transaction_prealloc_size = 1024;
 SELECT @@session.transaction_prealloc_size;
 
@@ -148,8 +148,8 @@ SELECT @@session.transaction_prealloc_size;
 ####################################################################
 
 
-SELECT @@global.transaction_prealloc_size = VARIABLE_VALUE 
-FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES 
+SELECT @@global.transaction_prealloc_size = VARIABLE_VALUE
+FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES
 WHERE VARIABLE_NAME='transaction_prealloc_size';
 
 --echo '#------------------FN_DYNVARS_005_07-----------------------#'
@@ -157,8 +157,8 @@ WHERE VARIABLE_NAME='transaction_prealloc_size';
 #  Check if the value in SESSION Table matches value in variable   #
 ####################################################################
 
-SELECT @@session.transaction_prealloc_size = VARIABLE_VALUE 
-FROM INFORMATION_SCHEMA.SESSION_VARIABLES 
+SELECT @@session.transaction_prealloc_size = VARIABLE_VALUE
+FROM INFORMATION_SCHEMA.SESSION_VARIABLES
 WHERE VARIABLE_NAME='transaction_prealloc_size';
 
 
@@ -173,7 +173,7 @@ SET @@global.transaction_prealloc_size = 1024;
 SET @@global.transaction_prealloc_size = 10;
 
 SELECT @@transaction_prealloc_size = @@global.transaction_prealloc_size;
- 
+
 
 --echo '#---------------------FN_DYNVARS_001_10----------------------#'
 ########################################################################
@@ -216,4 +216,3 @@ SELECT @@session.transaction_prealloc_size;
 #############################################################
 #                 END OF transaction_prealloc_size TESTS     #
 #############################################################
-
diff --git a/mysql-test/t/variables-big.test b/mysql-test/t/variables-big.test
index 53f426757b6..f64d0826813 100644
--- a/mysql-test/t/variables-big.test
+++ b/mysql-test/t/variables-big.test
@@ -8,10 +8,9 @@
 # Bug#27322 failure to allocate transaction_prealloc_size causes crash
 #
 #
-# Manual (6.0):
+# Manual (5.1):
 # Platform Bit Size  Range                      Default
-# 32                 1024-4294967295 (4 Gi - 1) 4096
-# 64                 1024-18446744073709547520  4096
+# 32/64              1024-128k                  4096
 #
 # Observation(mleich):
 # 1. - Linux 64 Bit, MySQL 64 Bit, 4 GiB RAM, 8 GiB swap
diff --git a/sql/sys_vars.cc b/sql/sys_vars.cc
index d1c02cda20c..b0fa7f9a341 100644
--- a/sql/sys_vars.cc
+++ b/sql/sys_vars.cc
@@ -1836,7 +1836,7 @@ static Sys_var_ulong Sys_trans_alloc_block_size(
        "transaction_alloc_block_size",
        "Allocation block size for transactions to be stored in binary log",
        SESSION_VAR(trans_alloc_block_size), CMD_LINE(REQUIRED_ARG),
-       VALID_RANGE(1024, 128 * 1024 * 1024), DEFAULT(QUERY_ALLOC_BLOCK_SIZE),
+       VALID_RANGE(1024, 128 * 1024), DEFAULT(QUERY_ALLOC_BLOCK_SIZE),
        BLOCK_SIZE(1024), NO_MUTEX_GUARD, NOT_IN_BINLOG, ON_CHECK(0),
        ON_UPDATE(fix_trans_mem_root));
 
@@ -1844,7 +1844,7 @@ static Sys_var_ulong Sys_trans_prealloc_size(
        "transaction_prealloc_size",
        "Persistent buffer for transactions to be stored in binary log",
        SESSION_VAR(trans_prealloc_size), CMD_LINE(REQUIRED_ARG),
-       VALID_RANGE(1024, 128 * 1024 * 1024), DEFAULT(TRANS_ALLOC_PREALLOC_SIZE),
+       VALID_RANGE(1024, 128 * 1024), DEFAULT(TRANS_ALLOC_PREALLOC_SIZE),
        BLOCK_SIZE(1024), NO_MUTEX_GUARD, NOT_IN_BINLOG, ON_CHECK(0),
        ON_UPDATE(fix_trans_mem_root));