diff --git a/mysql-test/r/mysqlbinlog_row_big.result b/mysql-test/r/mysqlbinlog_row_big.result
index f2ca72f9936..46fa0dc79cd 100644
--- a/mysql-test/r/mysqlbinlog_row_big.result
+++ b/mysql-test/r/mysqlbinlog_row_big.result
@@ -9,7 +9,17 @@ SET timestamp=1000000000;
 #
 # We need big packets.
 #
+# Capture initial value to reset at the end of the test
+# Now adjust max_allowed_packet
 SET @@global.max_allowed_packet= 1024*1024*1024;
+max_allowed_packet is a global variable.
+In order for the preceding change in max_allowed_packets' value
+to be seen and used, we must start a new connection.
+The change does not take effect with the current one.
+For simplicity, we just disconnect / reconnect connection default here.
+Disconnecting default connection...
+Reconnecting default connection...
+default connection established, continuing with the test
 #
 # Delete all existing binary logs.
 #
@@ -21,40 +31,56 @@ CREATE TABLE t1 (
 c1 LONGTEXT
 ) ENGINE=MyISAM DEFAULT CHARSET latin1;
 #
-# Show how much rows are affected by each statement.
+# Show how many rows are affected by each statement.
 #
 #
-# Insert a big row.
+# Insert some big rows.
 #
+256MB
+INSERT INTO t1 VALUES (REPEAT('ManyMegaByteBlck', 16777216));
+affected rows: 1
+32MB
 INSERT INTO t1 VALUES (REPEAT('ManyMegaByteBlck', 2097152));
 affected rows: 1
+4MB
+INSERT INTO t1 VALUES (REPEAT('ManyMegaByteBlck', 262144));
+affected rows: 1
+512KB
+INSERT INTO t1 VALUES (REPEAT('ManyMegaByteBlck', 32768));
+affected rows: 1
 #
 # Show what we have in the table.
 # Do not display the column value itself, just its length.
 #
 SELECT LENGTH(c1) FROM t1;
+LENGTH(c1)	268435456
 LENGTH(c1)	33554432
-affected rows: 1
+LENGTH(c1)	4194304
+LENGTH(c1)	524288
+affected rows: 4
 #
-# Grow the row by updating.
+# Grow the rows by updating.
 #
 UPDATE t1 SET c1 = CONCAT(c1, c1);
-affected rows: 1
-info: Rows matched: 1  Changed: 1  Warnings: 0
+affected rows: 4
+info: Rows matched: 4  Changed: 4  Warnings: 0
 #
 # Show what we have in the table.
 # Do not display the column value itself, just its length.
 #
 SELECT LENGTH(c1) FROM t1;
+LENGTH(c1)	536870912
+LENGTH(c1)	1048576
 LENGTH(c1)	67108864
-affected rows: 1
+LENGTH(c1)	8388608
+affected rows: 4
 #
-# Delete the row.
+# Delete the rows.
 #
 DELETE FROM t1 WHERE c1 >= 'ManyMegaByteBlck';
-affected rows: 1
+affected rows: 4
 #
-# Hide how much rows are affected by each statement.
+# Hide how many rows are affected by each statement.
 #
 #
 # Flush all log buffers to the log file.
@@ -70,5 +96,7 @@ FLUSH LOGS;
 #
 # Cleanup.
 #
+# reset variable value to pass testcase checks
+SET @@global.max_allowed_packet = 1048576;
 DROP TABLE t1;
 remove_file $MYSQLTEST_VARDIR/tmp/mysqlbinlog_big_1.out
diff --git a/mysql-test/suite/sys_vars/r/binlog_cache_size_basic_64.result b/mysql-test/suite/sys_vars/r/binlog_cache_size_basic_64.result
index 45ed43589a3..3858df0f4d6 100644
--- a/mysql-test/suite/sys_vars/r/binlog_cache_size_basic_64.result
+++ b/mysql-test/suite/sys_vars/r/binlog_cache_size_basic_64.result
@@ -44,7 +44,7 @@ SET @@global.binlog_cache_size = 10000.01;
 ERROR 42000: Incorrect argument type to variable 'binlog_cache_size'
 SET @@global.binlog_cache_size = -1024;
 Warnings:
-Warning	1292	Truncated incorrect binlog_cache_size value: '0'
+Warning	1292	Truncated incorrect binlog_cache_size value: '-1024'
 SELECT @@global.binlog_cache_size;
 @@global.binlog_cache_size
 4096
diff --git a/mysql-test/suite/sys_vars/r/bulk_insert_buffer_size_basic_64.result b/mysql-test/suite/sys_vars/r/bulk_insert_buffer_size_basic_64.result
index 9e0e8e07470..320290fbca1 100644
--- a/mysql-test/suite/sys_vars/r/bulk_insert_buffer_size_basic_64.result
+++ b/mysql-test/suite/sys_vars/r/bulk_insert_buffer_size_basic_64.result
@@ -66,6 +66,8 @@ SELECT @@global.bulk_insert_buffer_size;
 @@global.bulk_insert_buffer_size
 42949672950
 SET @@global.bulk_insert_buffer_size = -1024;
+Warnings:
+Warning	1292	Truncated incorrect bulk_insert_buffer_size value: '-1024'
 SELECT @@global.bulk_insert_buffer_size;
 @@global.bulk_insert_buffer_size
 0
@@ -80,6 +82,8 @@ SELECT @@session.bulk_insert_buffer_size;
 @@session.bulk_insert_buffer_size
 42949672950
 SET @@session.bulk_insert_buffer_size = -2;
+Warnings:
+Warning	1292	Truncated incorrect bulk_insert_buffer_size value: '-2'
 SELECT @@session.bulk_insert_buffer_size;
 @@session.bulk_insert_buffer_size
 0
diff --git a/mysql-test/suite/sys_vars/r/delayed_insert_limit_basic_64.result b/mysql-test/suite/sys_vars/r/delayed_insert_limit_basic_64.result
index 246bf0e8734..1f7d0a52e72 100644
--- a/mysql-test/suite/sys_vars/r/delayed_insert_limit_basic_64.result
+++ b/mysql-test/suite/sys_vars/r/delayed_insert_limit_basic_64.result
@@ -35,7 +35,7 @@ SELECT @@global.delayed_insert_limit;
 1
 SET @@global.delayed_insert_limit = -1024;
 Warnings:
-Warning	1292	Truncated incorrect delayed_insert_limit value: '0'
+Warning	1292	Truncated incorrect delayed_insert_limit value: '-1024'
 SELECT @@global.delayed_insert_limit;
 @@global.delayed_insert_limit
 1
diff --git a/mysql-test/suite/sys_vars/r/delayed_queue_size_basic_64.result b/mysql-test/suite/sys_vars/r/delayed_queue_size_basic_64.result
index d575626b0a1..ed866b7e0b4 100644
--- a/mysql-test/suite/sys_vars/r/delayed_queue_size_basic_64.result
+++ b/mysql-test/suite/sys_vars/r/delayed_queue_size_basic_64.result
@@ -35,7 +35,7 @@ SELECT @@global.delayed_queue_size;
 1
 SET @@global.delayed_queue_size = -1024;
 Warnings:
-Warning	1292	Truncated incorrect delayed_queue_size value: '0'
+Warning	1292	Truncated incorrect delayed_queue_size value: '-1024'
 SELECT @@global.delayed_queue_size;
 @@global.delayed_queue_size
 1
diff --git a/mysql-test/suite/sys_vars/r/join_buffer_size_basic_64.result b/mysql-test/suite/sys_vars/r/join_buffer_size_basic_64.result
index ed652af67d2..4811d4732df 100644
--- a/mysql-test/suite/sys_vars/r/join_buffer_size_basic_64.result
+++ b/mysql-test/suite/sys_vars/r/join_buffer_size_basic_64.result
@@ -71,7 +71,7 @@ SELECT @@global.join_buffer_size=8200 OR @@global.join_buffer_size= 8228;
 1
 SET @@global.join_buffer_size = -1024;
 Warnings:
-Warning	1292	Truncated incorrect join_buffer_size value: '0'
+Warning	1292	Truncated incorrect join_buffer_size value: '-1024'
 SELECT @@global.join_buffer_size=8200 OR @@global.join_buffer_size= 8228;
 @@global.join_buffer_size=8200 OR @@global.join_buffer_size= 8228
 1
@@ -103,7 +103,7 @@ SELECT @@session.join_buffer_size=8200 OR @@session.join_buffer_size= 8228;
 1
 SET @@session.join_buffer_size = -2;
 Warnings:
-Warning	1292	Truncated incorrect join_buffer_size value: '0'
+Warning	1292	Truncated incorrect join_buffer_size value: '-2'
 SELECT @@session.join_buffer_size=8200 OR @@session.join_buffer_size= 8228;
 @@session.join_buffer_size=8200 OR @@session.join_buffer_size= 8228
 1
diff --git a/mysql-test/suite/sys_vars/r/key_buffer_size_basic_64.result b/mysql-test/suite/sys_vars/r/key_buffer_size_basic_64.result
index 9ce1ab20993..eea782701bb 100644
--- a/mysql-test/suite/sys_vars/r/key_buffer_size_basic_64.result
+++ b/mysql-test/suite/sys_vars/r/key_buffer_size_basic_64.result
@@ -17,8 +17,6 @@ SELECT @@global.key_buffer_size BETWEEN 8 AND 36;
 @@global.key_buffer_size BETWEEN 8 AND 36
 1
 SET @@global.key_buffer_size = 1800;
-Warnings:
-Warning	1292	Truncated incorrect key_buffer_size value: '1800'
 SELECT @@global.key_buffer_size BETWEEN 8 AND 36;
 @@global.key_buffer_size BETWEEN 8 AND 36
 1
diff --git a/mysql-test/suite/sys_vars/r/log_warnings_basic_64.result b/mysql-test/suite/sys_vars/r/log_warnings_basic_64.result
index ba6671c87a4..6a94881dad0 100644
--- a/mysql-test/suite/sys_vars/r/log_warnings_basic_64.result
+++ b/mysql-test/suite/sys_vars/r/log_warnings_basic_64.result
@@ -74,6 +74,8 @@ SELECT @@global.log_warnings;
 @@global.log_warnings
 100000000000
 SET @@global.log_warnings = -1024;
+Warnings:
+Warning	1292	Truncated incorrect log_warnings value: '-1024'
 SELECT @@global.log_warnings;
 @@global.log_warnings
 0
@@ -92,6 +94,8 @@ SELECT @@session.log_warnings;
 @@session.log_warnings
 100000000000
 SET @@session.log_warnings = -2;
+Warnings:
+Warning	1292	Truncated incorrect log_warnings value: '-2'
 SELECT @@session.log_warnings;
 @@session.log_warnings
 0
diff --git a/mysql-test/suite/sys_vars/r/max_binlog_cache_size_basic_64.result b/mysql-test/suite/sys_vars/r/max_binlog_cache_size_basic_64.result
index 30db3f14dd4..10a42f6ab0e 100644
--- a/mysql-test/suite/sys_vars/r/max_binlog_cache_size_basic_64.result
+++ b/mysql-test/suite/sys_vars/r/max_binlog_cache_size_basic_64.result
@@ -1,7 +1,7 @@
 SET @start_value = @@global.max_binlog_cache_size;
 SELECT @start_value;
 @start_value
-18446744073709551615
+18446744073709547520
 '#--------------------FN_DYNVARS_072_01------------------------#'
 SET @@global.max_binlog_cache_size = 5000;
 SET @@global.max_binlog_cache_size = DEFAULT;
@@ -39,7 +39,7 @@ SELECT @@global.max_binlog_cache_size;
 '#--------------------FN_DYNVARS_072_04-------------------------#'
 SET @@global.max_binlog_cache_size = -1;
 Warnings:
-Warning	1292	Truncated incorrect max_binlog_cache_size value: '0'
+Warning	1292	Truncated incorrect max_binlog_cache_size value: '-1'
 SELECT @@global.max_binlog_cache_size;
 @@global.max_binlog_cache_size
 4096
@@ -54,7 +54,7 @@ SELECT @@global.max_binlog_cache_size;
 99999997952
 SET @@global.max_binlog_cache_size = -1024;
 Warnings:
-Warning	1292	Truncated incorrect max_binlog_cache_size value: '0'
+Warning	1292	Truncated incorrect max_binlog_cache_size value: '-1024'
 SELECT @@global.max_binlog_cache_size;
 @@global.max_binlog_cache_size
 4096
diff --git a/mysql-test/suite/sys_vars/r/max_connect_errors_basic_64.result b/mysql-test/suite/sys_vars/r/max_connect_errors_basic_64.result
index 8117b650651..762cfd14a3a 100644
--- a/mysql-test/suite/sys_vars/r/max_connect_errors_basic_64.result
+++ b/mysql-test/suite/sys_vars/r/max_connect_errors_basic_64.result
@@ -39,7 +39,7 @@ SELECT @@global.max_connect_errors;
 '#--------------------FN_DYNVARS_073_04-------------------------#'
 SET @@global.max_connect_errors = -1;
 Warnings:
-Warning	1292	Truncated incorrect max_connect_errors value: '0'
+Warning	1292	Truncated incorrect max_connect_errors value: '-1'
 SELECT @@global.max_connect_errors;
 @@global.max_connect_errors
 1
@@ -54,7 +54,7 @@ SELECT @@global.max_connect_errors;
 100000000000
 SET @@global.max_connect_errors = -1024;
 Warnings:
-Warning	1292	Truncated incorrect max_connect_errors value: '0'
+Warning	1292	Truncated incorrect max_connect_errors value: '-1024'
 SELECT @@global.max_connect_errors;
 @@global.max_connect_errors
 1
diff --git a/mysql-test/suite/sys_vars/r/max_heap_table_size_basic_64.result b/mysql-test/suite/sys_vars/r/max_heap_table_size_basic_64.result
index ebab80f376b..6642b6024b5 100644
--- a/mysql-test/suite/sys_vars/r/max_heap_table_size_basic_64.result
+++ b/mysql-test/suite/sys_vars/r/max_heap_table_size_basic_64.result
@@ -73,13 +73,13 @@ SELECT @@session.max_heap_table_size;
 '#------------------FN_DYNVARS_077_05-----------------------#'
 SET @@global.max_heap_table_size = -1;
 Warnings:
-Warning	1292	Truncated incorrect max_heap_table_size value: '0'
+Warning	1292	Truncated incorrect max_heap_table_size value: '-1'
 SELECT @@global.max_heap_table_size;
 @@global.max_heap_table_size
 16384
 SET @@global.max_heap_table_size = -1024;
 Warnings:
-Warning	1292	Truncated incorrect max_heap_table_size value: '0'
+Warning	1292	Truncated incorrect max_heap_table_size value: '-1024'
 SELECT @@global.max_heap_table_size;
 @@global.max_heap_table_size
 16384
@@ -111,7 +111,7 @@ SELECT @@global.max_heap_table_size;
 4294967296
 SET @@session.max_heap_table_size = -1;
 Warnings:
-Warning	1292	Truncated incorrect max_heap_table_size value: '0'
+Warning	1292	Truncated incorrect max_heap_table_size value: '-1'
 SELECT @@session.max_heap_table_size;
 @@session.max_heap_table_size
 16384
diff --git a/mysql-test/suite/sys_vars/r/max_seeks_for_key_basic_64.result b/mysql-test/suite/sys_vars/r/max_seeks_for_key_basic_64.result
index eefb829cdae..5b1e076c188 100644
--- a/mysql-test/suite/sys_vars/r/max_seeks_for_key_basic_64.result
+++ b/mysql-test/suite/sys_vars/r/max_seeks_for_key_basic_64.result
@@ -77,7 +77,7 @@ SELECT @@global.max_seeks_for_key;
 1
 SET @@global.max_seeks_for_key = -1024;
 Warnings:
-Warning	1292	Truncated incorrect max_seeks_for_key value: '0'
+Warning	1292	Truncated incorrect max_seeks_for_key value: '-1024'
 SELECT @@global.max_seeks_for_key;
 @@global.max_seeks_for_key
 1
@@ -103,7 +103,7 @@ SELECT @@session.max_seeks_for_key;
 1
 SET @@session.max_seeks_for_key = -2;
 Warnings:
-Warning	1292	Truncated incorrect max_seeks_for_key value: '0'
+Warning	1292	Truncated incorrect max_seeks_for_key value: '-2'
 SELECT @@session.max_seeks_for_key;
 @@session.max_seeks_for_key
 1
diff --git a/mysql-test/suite/sys_vars/r/max_tmp_tables_basic_64.result b/mysql-test/suite/sys_vars/r/max_tmp_tables_basic_64.result
index 4b9f68c509e..808e99b739d 100644
--- a/mysql-test/suite/sys_vars/r/max_tmp_tables_basic_64.result
+++ b/mysql-test/suite/sys_vars/r/max_tmp_tables_basic_64.result
@@ -71,7 +71,7 @@ SELECT @@session.max_tmp_tables;
 '#------------------FN_DYNVARS_086_05-----------------------#'
 SET @@global.max_tmp_tables = -1024;
 Warnings:
-Warning	1292	Truncated incorrect max_tmp_tables value: '0'
+Warning	1292	Truncated incorrect max_tmp_tables value: '-1024'
 SELECT @@global.max_tmp_tables;
 @@global.max_tmp_tables
 1
@@ -81,7 +81,7 @@ SELECT @@global.max_tmp_tables;
 4294967296
 SET @@global.max_tmp_tables = -1;
 Warnings:
-Warning	1292	Truncated incorrect max_tmp_tables value: '0'
+Warning	1292	Truncated incorrect max_tmp_tables value: '-1'
 SELECT @@global.max_tmp_tables;
 @@global.max_tmp_tables
 1
@@ -105,7 +105,7 @@ SELECT @@session.max_tmp_tables;
 4294967296
 SET @@session.max_tmp_tables = -1;
 Warnings:
-Warning	1292	Truncated incorrect max_tmp_tables value: '0'
+Warning	1292	Truncated incorrect max_tmp_tables value: '-1'
 SELECT @@session.max_tmp_tables;
 @@session.max_tmp_tables
 1
@@ -115,7 +115,7 @@ SELECT @@session.max_tmp_tables;
 429496729500
 SET @@session.max_tmp_tables = -001;
 Warnings:
-Warning	1292	Truncated incorrect max_tmp_tables value: '0'
+Warning	1292	Truncated incorrect max_tmp_tables value: '-1'
 SELECT @@session.max_tmp_tables;
 @@session.max_tmp_tables
 1
diff --git a/mysql-test/suite/sys_vars/r/max_write_lock_count_basic_64.result b/mysql-test/suite/sys_vars/r/max_write_lock_count_basic_64.result
index d74586841dd..934777e38d3 100644
--- a/mysql-test/suite/sys_vars/r/max_write_lock_count_basic_64.result
+++ b/mysql-test/suite/sys_vars/r/max_write_lock_count_basic_64.result
@@ -37,7 +37,7 @@ SELECT @@global.max_write_lock_count;
 '#------------------FN_DYNVARS_088_04-----------------------#'
 SET @@global.max_write_lock_count = -1024;
 Warnings:
-Warning	1292	Truncated incorrect max_write_lock_count value: '0'
+Warning	1292	Truncated incorrect max_write_lock_count value: '-1024'
 SELECT @@global.max_write_lock_count;
 @@global.max_write_lock_count
 1
@@ -47,7 +47,7 @@ SELECT @@global.max_write_lock_count;
 4294967296
 SET @@global.max_write_lock_count = -1;
 Warnings:
-Warning	1292	Truncated incorrect max_write_lock_count value: '0'
+Warning	1292	Truncated incorrect max_write_lock_count value: '-1'
 SELECT @@global.max_write_lock_count;
 @@global.max_write_lock_count
 1
diff --git a/mysql-test/suite/sys_vars/r/min_examined_row_limit_basic_64.result b/mysql-test/suite/sys_vars/r/min_examined_row_limit_basic_64.result
index fa11659c6c5..5cf77ed6dc8 100644
--- a/mysql-test/suite/sys_vars/r/min_examined_row_limit_basic_64.result
+++ b/mysql-test/suite/sys_vars/r/min_examined_row_limit_basic_64.result
@@ -82,6 +82,8 @@ SELECT @@global.min_examined_row_limit;
 @@global.min_examined_row_limit
 429496726
 SET @@global.min_examined_row_limit = -1024;
+Warnings:
+Warning	1292	Truncated incorrect min_examined_row_limit value: '-1024'
 SELECT @@global.min_examined_row_limit;
 @@global.min_examined_row_limit
 0
@@ -104,6 +106,8 @@ SELECT @@session.min_examined_row_limit;
 @@session.min_examined_row_limit
 4294967296
 SET @@session.min_examined_row_limit = -1;
+Warnings:
+Warning	1292	Truncated incorrect min_examined_row_limit value: '-1'
 SELECT @@session.min_examined_row_limit;
 @@session.min_examined_row_limit
 0
diff --git a/mysql-test/suite/sys_vars/r/multi_range_count_basic_64.result b/mysql-test/suite/sys_vars/r/multi_range_count_basic_64.result
index f2115aec2e2..29019ca5971 100644
--- a/mysql-test/suite/sys_vars/r/multi_range_count_basic_64.result
+++ b/mysql-test/suite/sys_vars/r/multi_range_count_basic_64.result
@@ -81,7 +81,7 @@ SELECT @@global.multi_range_count;
 4294967296
 SET @@global.multi_range_count = -1024;
 Warnings:
-Warning	1292	Truncated incorrect multi_range_count value: '0'
+Warning	1292	Truncated incorrect multi_range_count value: '-1024'
 SELECT @@global.multi_range_count;
 @@global.multi_range_count
 1
@@ -111,7 +111,7 @@ SELECT @@session.multi_range_count;
 4294967296
 SET @@session.multi_range_count = -1;
 Warnings:
-Warning	1292	Truncated incorrect multi_range_count value: '0'
+Warning	1292	Truncated incorrect multi_range_count value: '-1'
 SELECT @@session.multi_range_count;
 @@session.multi_range_count
 1
diff --git a/mysql-test/suite/sys_vars/r/myisam_max_sort_file_size_basic_64.result b/mysql-test/suite/sys_vars/r/myisam_max_sort_file_size_basic_64.result
index 00ff1dfc1ab..df2a49e4dd5 100644
--- a/mysql-test/suite/sys_vars/r/myisam_max_sort_file_size_basic_64.result
+++ b/mysql-test/suite/sys_vars/r/myisam_max_sort_file_size_basic_64.result
@@ -1,7 +1,7 @@
 SET @start_global_value = @@global.myisam_max_sort_file_size;
 SELECT @start_global_value;
 @start_global_value
-9223372036854775807
+9223372036853727232
 '#--------------------FN_DYNVARS_094_01-------------------------#'
 SET @@global.myisam_max_sort_file_size = 500000;
 SET @@global.myisam_max_sort_file_size = DEFAULT;
@@ -48,14 +48,20 @@ SET @@local.myisam_max_sort_file_size = 4;
 ERROR HY000: Variable 'myisam_max_sort_file_size' is a GLOBAL variable and should be set with SET GLOBAL
 '#------------------FN_DYNVARS_094_05-----------------------#'
 SET @@global.myisam_max_sort_file_size = -1;
+Warnings:
+Warning	1292	Truncated incorrect myisam_max_sort_file_size value: '-1'
 SELECT @@global.myisam_max_sort_file_size;
 @@global.myisam_max_sort_file_size
 0
 SET @@global.myisam_max_sort_file_size = -2147483648;
+Warnings:
+Warning	1292	Truncated incorrect myisam_max_sort_file_size value: '-2147483648'
 SELECT @@global.myisam_max_sort_file_size;
 @@global.myisam_max_sort_file_size
 0
 SET @@global.myisam_max_sort_file_size = -2147483649;
+Warnings:
+Warning	1292	Truncated incorrect myisam_max_sort_file_size value: '-2147483649'
 SELECT @@global.myisam_max_sort_file_size;
 @@global.myisam_max_sort_file_size
 0
diff --git a/mysql-test/suite/sys_vars/r/myisam_repair_threads_basic_64.result b/mysql-test/suite/sys_vars/r/myisam_repair_threads_basic_64.result
index 8271451cc9e..0a317d28b11 100644
--- a/mysql-test/suite/sys_vars/r/myisam_repair_threads_basic_64.result
+++ b/mysql-test/suite/sys_vars/r/myisam_repair_threads_basic_64.result
@@ -61,7 +61,7 @@ SELECT @@global.myisam_repair_threads ;
 1
 SET @@global.myisam_repair_threads  = -1024;
 Warnings:
-Warning	1292	Truncated incorrect myisam_repair_threads value: '0'
+Warning	1292	Truncated incorrect myisam_repair_threads value: '-1024'
 SELECT @@global.myisam_repair_threads ;
 @@global.myisam_repair_threads
 1
@@ -102,7 +102,7 @@ SELECT @@session.myisam_repair_threads ;
 1
 SET @@session.myisam_repair_threads  = -2;
 Warnings:
-Warning	1292	Truncated incorrect myisam_repair_threads value: '0'
+Warning	1292	Truncated incorrect myisam_repair_threads value: '-2'
 SELECT @@session.myisam_repair_threads ;
 @@session.myisam_repair_threads
 1
diff --git a/mysql-test/suite/sys_vars/r/myisam_sort_buffer_size_basic_64.result b/mysql-test/suite/sys_vars/r/myisam_sort_buffer_size_basic_64.result
index bfcada76a46..be9e415d830 100644
--- a/mysql-test/suite/sys_vars/r/myisam_sort_buffer_size_basic_64.result
+++ b/mysql-test/suite/sys_vars/r/myisam_sort_buffer_size_basic_64.result
@@ -61,7 +61,7 @@ SELECT @@global.myisam_sort_buffer_size  ;
 4
 SET @@global.myisam_sort_buffer_size   = -1024;
 Warnings:
-Warning	1292	Truncated incorrect myisam_sort_buffer_size value: '0'
+Warning	1292	Truncated incorrect myisam_sort_buffer_size value: '-1024'
 SELECT @@global.myisam_sort_buffer_size  ;
 @@global.myisam_sort_buffer_size
 4
@@ -102,7 +102,7 @@ SELECT @@session.myisam_sort_buffer_size  ;
 4
 SET @@session.myisam_sort_buffer_size   = -2;
 Warnings:
-Warning	1292	Truncated incorrect myisam_sort_buffer_size value: '0'
+Warning	1292	Truncated incorrect myisam_sort_buffer_size value: '-2'
 SELECT @@session.myisam_sort_buffer_size  ;
 @@session.myisam_sort_buffer_size
 4
diff --git a/mysql-test/suite/sys_vars/r/net_retry_count_basic_64.result b/mysql-test/suite/sys_vars/r/net_retry_count_basic_64.result
index db133d23f79..67dae3d1291 100644
--- a/mysql-test/suite/sys_vars/r/net_retry_count_basic_64.result
+++ b/mysql-test/suite/sys_vars/r/net_retry_count_basic_64.result
@@ -77,7 +77,7 @@ SELECT @@global.net_retry_count;
 1
 SET @@global.net_retry_count = -1024;
 Warnings:
-Warning	1292	Truncated incorrect net_retry_count value: '0'
+Warning	1292	Truncated incorrect net_retry_count value: '-1024'
 SELECT @@global.net_retry_count;
 @@global.net_retry_count
 1
@@ -107,7 +107,7 @@ SELECT @@session.net_retry_count;
 1
 SET @@session.net_retry_count = -2;
 Warnings:
-Warning	1292	Truncated incorrect net_retry_count value: '0'
+Warning	1292	Truncated incorrect net_retry_count value: '-2'
 SELECT @@session.net_retry_count;
 @@session.net_retry_count
 1
diff --git a/mysql-test/suite/sys_vars/r/query_alloc_block_size_basic_64.result b/mysql-test/suite/sys_vars/r/query_alloc_block_size_basic_64.result
index 57c96a8168a..7c573bdb7cb 100644
--- a/mysql-test/suite/sys_vars/r/query_alloc_block_size_basic_64.result
+++ b/mysql-test/suite/sys_vars/r/query_alloc_block_size_basic_64.result
@@ -78,7 +78,7 @@ SELECT @@global.query_alloc_block_size;
 1024
 SET @@global.query_alloc_block_size = -1;
 Warnings:
-Warning	1292	Truncated incorrect query_alloc_block_size value: '0'
+Warning	1292	Truncated incorrect query_alloc_block_size value: '-1'
 SELECT @@global.query_alloc_block_size;
 @@global.query_alloc_block_size
 1024
@@ -110,7 +110,7 @@ SELECT @@session.query_alloc_block_size;
 1024
 SET @@session.query_alloc_block_size = -2;
 Warnings:
-Warning	1292	Truncated incorrect query_alloc_block_size value: '0'
+Warning	1292	Truncated incorrect query_alloc_block_size value: '-2'
 SELECT @@session.query_alloc_block_size;
 @@session.query_alloc_block_size
 1024
diff --git a/mysql-test/suite/sys_vars/r/query_cache_limit_basic_64.result b/mysql-test/suite/sys_vars/r/query_cache_limit_basic_64.result
index a592883ef91..7b3e759deb4 100644
--- a/mysql-test/suite/sys_vars/r/query_cache_limit_basic_64.result
+++ b/mysql-test/suite/sys_vars/r/query_cache_limit_basic_64.result
@@ -32,6 +32,8 @@ SELECT @@global.query_cache_limit;
 1048575
 '#--------------------FN_DYNVARS_131_04-------------------------#'
 SET @@global.query_cache_limit = -1;
+Warnings:
+Warning	1292	Truncated incorrect query_cache_limit value: '-1'
 SELECT @@global.query_cache_limit;
 @@global.query_cache_limit
 0
@@ -49,6 +51,8 @@ SELECT @@global.query_cache_limit;
 @@global.query_cache_limit
 10240022115
 SET @@global.query_cache_limit = -1024;
+Warnings:
+Warning	1292	Truncated incorrect query_cache_limit value: '-1024'
 SELECT @@global.query_cache_limit;
 @@global.query_cache_limit
 0
diff --git a/mysql-test/suite/sys_vars/r/query_cache_min_res_unit_basic_64.result b/mysql-test/suite/sys_vars/r/query_cache_min_res_unit_basic_64.result
index e1c74d2bbc1..fdbbc71f108 100644
--- a/mysql-test/suite/sys_vars/r/query_cache_min_res_unit_basic_64.result
+++ b/mysql-test/suite/sys_vars/r/query_cache_min_res_unit_basic_64.result
@@ -42,6 +42,8 @@ SELECT @@global.query_cache_min_res_unit;
 1048576
 '#--------------------FN_DYNVARS_132_04-------------------------#'
 SET @@global.query_cache_min_res_unit = -1;
+Warnings:
+Warning	1292	Truncated incorrect query_cache_min_res_unit value: '-1'
 SELECT @@global.query_cache_min_res_unit;
 @@global.query_cache_min_res_unit
 512
@@ -59,6 +61,8 @@ SELECT @@global.query_cache_min_res_unit;
 @@global.query_cache_min_res_unit
 512
 SET @@global.query_cache_min_res_unit = -1024;
+Warnings:
+Warning	1292	Truncated incorrect query_cache_min_res_unit value: '-1024'
 SELECT @@global.query_cache_min_res_unit;
 @@global.query_cache_min_res_unit
 512
diff --git a/mysql-test/suite/sys_vars/r/query_cache_size_basic_64.result b/mysql-test/suite/sys_vars/r/query_cache_size_basic_64.result
index 0cc508b169e..c6d7999677f 100644
--- a/mysql-test/suite/sys_vars/r/query_cache_size_basic_64.result
+++ b/mysql-test/suite/sys_vars/r/query_cache_size_basic_64.result
@@ -41,6 +41,8 @@ SELECT @@global.query_cache_size;
 1047552
 '#--------------------FN_DYNVARS_133_04-------------------------#'
 SET @@global.query_cache_size = -1;
+Warnings:
+Warning	1292	Truncated incorrect query_cache_size value: '-1'
 SELECT @@global.query_cache_size;
 @@global.query_cache_size
 0
@@ -58,6 +60,8 @@ SELECT @@global.query_cache_size;
 @@global.query_cache_size
 0
 SET @@global.query_cache_size = -1024;
+Warnings:
+Warning	1292	Truncated incorrect query_cache_size value: '-1024'
 SELECT @@global.query_cache_size;
 @@global.query_cache_size
 0
diff --git a/mysql-test/suite/sys_vars/r/query_prealloc_size_basic_64.result b/mysql-test/suite/sys_vars/r/query_prealloc_size_basic_64.result
index 0e61fbcd4b5..a16c56f95c5 100644
--- a/mysql-test/suite/sys_vars/r/query_prealloc_size_basic_64.result
+++ b/mysql-test/suite/sys_vars/r/query_prealloc_size_basic_64.result
@@ -35,10 +35,6 @@ SET @@global.query_prealloc_size   = 8192;
 SELECT @@global.query_prealloc_size  ;
 @@global.query_prealloc_size
 8192
-SET @@global.query_prealloc_size   = 4294967295;
-SELECT @@global.query_prealloc_size  ;
-@@global.query_prealloc_size
-4294966272
 SET @@global.query_prealloc_size   = 655354;
 SELECT @@global.query_prealloc_size  ;
 @@global.query_prealloc_size
@@ -48,10 +44,6 @@ SET @@session.query_prealloc_size   = 8192;
 SELECT @@session.query_prealloc_size  ;
 @@session.query_prealloc_size
 8192
-SET @@session.query_prealloc_size   = 4294967295;
-SELECT @@session.query_prealloc_size  ;
-@@session.query_prealloc_size
-4294966272
 SET @@session.query_prealloc_size   = 655345;
 SELECT @@session.query_prealloc_size  ;
 @@session.query_prealloc_size
@@ -63,48 +55,32 @@ Warning	1292	Truncated incorrect query_prealloc_size value: '0'
 SELECT @@global.query_prealloc_size  ;
 @@global.query_prealloc_size
 8192
-SET @@global.query_prealloc_size   = -1024;
-Warnings:
-Warning	1292	Truncated incorrect query_prealloc_size value: '0'
-SELECT @@global.query_prealloc_size  ;
-@@global.query_prealloc_size
-8192
-SET @@global.query_prealloc_size   = 429496729533;
-SELECT @@global.query_prealloc_size  ;
-@@global.query_prealloc_size
-429496728576
 SET @@global.query_prealloc_size   = 65530.34.;
 ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '.' at line 1
 SELECT @@global.query_prealloc_size  ;
 @@global.query_prealloc_size
-429496728576
+8192
 SET @@global.query_prealloc_size   = test;
 ERROR 42000: Incorrect argument type to variable 'query_prealloc_size'
 SELECT @@global.query_prealloc_size  ;
 @@global.query_prealloc_size
-429496728576
+8192
 SET @@global.query_prealloc_size   = "test";
 ERROR 42000: Incorrect argument type to variable 'query_prealloc_size'
 SELECT @@global.query_prealloc_size  ;
 @@global.query_prealloc_size
-429496728576
+8192
 SET @@global.query_prealloc_size   = 'test';
 ERROR 42000: Incorrect argument type to variable 'query_prealloc_size'
 SELECT @@global.query_prealloc_size  ;
 @@global.query_prealloc_size
-429496728576
+8192
 SET @@global.query_prealloc_size   = ON;
 ERROR 42000: Incorrect argument type to variable 'query_prealloc_size'
 SELECT @@global.query_prealloc_size  ;
 @@global.query_prealloc_size
-429496728576
-SET @@session.query_prealloc_size   = 0;
-Warnings:
-Warning	1292	Truncated incorrect query_prealloc_size value: '0'
-SELECT @@session.query_prealloc_size  ;
-@@session.query_prealloc_size
 8192
-SET @@session.query_prealloc_size   = -2;
+SET @@session.query_prealloc_size   = 0;
 Warnings:
 Warning	1292	Truncated incorrect query_prealloc_size value: '0'
 SELECT @@session.query_prealloc_size  ;
diff --git a/mysql-test/suite/sys_vars/r/range_alloc_block_size_basic_64.result b/mysql-test/suite/sys_vars/r/range_alloc_block_size_basic_64.result
index 26ddfdd2bae..29bf939edac 100644
--- a/mysql-test/suite/sys_vars/r/range_alloc_block_size_basic_64.result
+++ b/mysql-test/suite/sys_vars/r/range_alloc_block_size_basic_64.result
@@ -71,7 +71,7 @@ SELECT @@global.range_alloc_block_size;
 4096
 SET @@global.range_alloc_block_size = -1024;
 Warnings:
-Warning	1292	Truncated incorrect range_alloc_block_size value: '0'
+Warning	1292	Truncated incorrect range_alloc_block_size value: '-1024'
 SELECT @@global.range_alloc_block_size;
 @@global.range_alloc_block_size
 4096
@@ -97,7 +97,7 @@ SELECT @@session.range_alloc_block_size;
 4096
 SET @@session.range_alloc_block_size = -2;
 Warnings:
-Warning	1292	Truncated incorrect range_alloc_block_size value: '0'
+Warning	1292	Truncated incorrect range_alloc_block_size value: '-2'
 SELECT @@session.range_alloc_block_size;
 @@session.range_alloc_block_size
 4096
diff --git a/mysql-test/suite/sys_vars/r/rpl_recovery_rank_basic_64.result b/mysql-test/suite/sys_vars/r/rpl_recovery_rank_basic_64.result
index 74a47fa0f08..9ec34c677e1 100644
--- a/mysql-test/suite/sys_vars/r/rpl_recovery_rank_basic_64.result
+++ b/mysql-test/suite/sys_vars/r/rpl_recovery_rank_basic_64.result
@@ -45,14 +45,20 @@ SET @@local.rpl_recovery_rank = 4;
 ERROR HY000: Variable 'rpl_recovery_rank' is a GLOBAL variable and should be set with SET GLOBAL
 '#------------------FN_DYNVARS_142_04-----------------------#'
 SET @@global.rpl_recovery_rank = -1;
+Warnings:
+Warning	1292	Truncated incorrect rpl_recovery_rank value: '-1'
 SELECT @@global.rpl_recovery_rank;
 @@global.rpl_recovery_rank
 0
 SET @@global.rpl_recovery_rank = -2147483648;
+Warnings:
+Warning	1292	Truncated incorrect rpl_recovery_rank value: '-2147483648'
 SELECT @@global.rpl_recovery_rank;
 @@global.rpl_recovery_rank
 0
 SET @@global.rpl_recovery_rank = -2147483649;
+Warnings:
+Warning	1292	Truncated incorrect rpl_recovery_rank value: '-2147483649'
 SELECT @@global.rpl_recovery_rank;
 @@global.rpl_recovery_rank
 0
diff --git a/mysql-test/suite/sys_vars/r/slave_transaction_retries_basic_64.result b/mysql-test/suite/sys_vars/r/slave_transaction_retries_basic_64.result
index 9434b14b238..6e0bc659f9e 100644
--- a/mysql-test/suite/sys_vars/r/slave_transaction_retries_basic_64.result
+++ b/mysql-test/suite/sys_vars/r/slave_transaction_retries_basic_64.result
@@ -55,6 +55,8 @@ SET @@local.slave_transaction_retries = 4;
 ERROR HY000: Variable 'slave_transaction_retries' is a GLOBAL variable and should be set with SET GLOBAL
 '#------------------FN_DYNVARS_149_05-----------------------#'
 SET @@global.slave_transaction_retries = -1;
+Warnings:
+Warning	1292	Truncated incorrect slave_transaction_retries value: '-1'
 SELECT @@global.slave_transaction_retries;
 @@global.slave_transaction_retries
 0
diff --git a/mysql-test/suite/sys_vars/r/sync_binlog_basic_64.result b/mysql-test/suite/sys_vars/r/sync_binlog_basic_64.result
index ffd1b3fc4f1..d3cc4e2a9c2 100644
--- a/mysql-test/suite/sys_vars/r/sync_binlog_basic_64.result
+++ b/mysql-test/suite/sys_vars/r/sync_binlog_basic_64.result
@@ -36,6 +36,8 @@ SELECT @@global.sync_binlog;
 65536
 '#--------------------FN_DYNVARS_168_04-------------------------#'
 SET @@global.sync_binlog = -1;
+Warnings:
+Warning	1292	Truncated incorrect sync_binlog value: '-1'
 SELECT @@global.sync_binlog;
 @@global.sync_binlog
 0
@@ -53,6 +55,8 @@ SELECT @@global.sync_binlog;
 @@global.sync_binlog
 10240022115
 SET @@global.sync_binlog = -1024;
+Warnings:
+Warning	1292	Truncated incorrect sync_binlog value: '-1024'
 SELECT @@global.sync_binlog;
 @@global.sync_binlog
 0
diff --git a/mysql-test/suite/sys_vars/r/transaction_alloc_block_size_basic_64.result b/mysql-test/suite/sys_vars/r/transaction_alloc_block_size_basic_64.result
index c968d6f108c..749df56c60b 100644
--- a/mysql-test/suite/sys_vars/r/transaction_alloc_block_size_basic_64.result
+++ b/mysql-test/suite/sys_vars/r/transaction_alloc_block_size_basic_64.result
@@ -67,7 +67,7 @@ SELECT @@global.transaction_alloc_block_size;
 1024
 SET @@global.transaction_alloc_block_size = -1024;
 Warnings:
-Warning	1292	Truncated incorrect transaction_alloc_block_size value: '0'
+Warning	1292	Truncated incorrect transaction_alloc_block_size value: '-1024'
 SELECT @@global.transaction_alloc_block_size;
 @@global.transaction_alloc_block_size
 1024
diff --git a/mysql-test/suite/sys_vars/r/transaction_prealloc_size_basic_64.result b/mysql-test/suite/sys_vars/r/transaction_prealloc_size_basic_64.result
index 2fb6451372f..3455b9479c0 100644
--- a/mysql-test/suite/sys_vars/r/transaction_prealloc_size_basic_64.result
+++ b/mysql-test/suite/sys_vars/r/transaction_prealloc_size_basic_64.result
@@ -66,7 +66,7 @@ SELECT @@global.transaction_prealloc_size;
 1024
 SET @@global.transaction_prealloc_size = -1024;
 Warnings:
-Warning	1292	Truncated incorrect transaction_prealloc_size value: '0'
+Warning	1292	Truncated incorrect transaction_prealloc_size value: '-1024'
 SELECT @@global.transaction_prealloc_size;
 @@global.transaction_prealloc_size
 1024
diff --git a/mysql-test/suite/sys_vars/r/wait_timeout_basic_64.result b/mysql-test/suite/sys_vars/r/wait_timeout_basic_64.result
index ae03e677e56..c9bffc61b6f 100644
--- a/mysql-test/suite/sys_vars/r/wait_timeout_basic_64.result
+++ b/mysql-test/suite/sys_vars/r/wait_timeout_basic_64.result
@@ -44,7 +44,7 @@ Warnings:
 Warning	1292	Truncated incorrect wait_timeout value: '0'
 SET @@global.wait_timeout = -1024;
 Warnings:
-Warning	1292	Truncated incorrect wait_timeout value: '0'
+Warning	1292	Truncated incorrect wait_timeout value: '-1024'
 'Bug # 34837: Errors are not coming on assigning invalid values to variable';
 SET @@global.wait_timeout = ON;
 ERROR 42000: Incorrect argument type to variable 'wait_timeout'
diff --git a/mysql-test/t/mysqlbinlog_row_big.test b/mysql-test/t/mysqlbinlog_row_big.test
index 14e818e7214..75f3b90269f 100644
--- a/mysql-test/t/mysqlbinlog_row_big.test
+++ b/mysql-test/t/mysqlbinlog_row_big.test
@@ -38,8 +38,26 @@ SET timestamp=1000000000;
 --echo #
 --echo # We need big packets.
 --echo #
+--echo # Capture initial value to reset at the end of the test
+# use let $<var> = query_get_value as FLUSH statements
+# in the test will set @<var> values to NULL
+let $orig_max_allowed_packet = 
+query_get_value(SELECT @@global.max_allowed_packet, @@global.max_allowed_packet, 1);
+
+--echo # Now adjust max_allowed_packet
 SET @@global.max_allowed_packet= 1024*1024*1024;
 
+--echo max_allowed_packet is a global variable.
+--echo In order for the preceding change in max_allowed_packets' value
+--echo to be seen and used, we must start a new connection.
+--echo The change does not take effect with the current one.
+--echo For simplicity, we just disconnect / reconnect connection default here.
+--echo Disconnecting default connection...
+disconnect default;
+--echo Reconnecting default connection...
+connect (default, localhost,root,,);
+--echo default connection established, continuing with the test
+
 --echo #
 --echo # Delete all existing binary logs.
 --echo #
@@ -53,34 +71,35 @@ eval CREATE TABLE t1 (
   ) ENGINE=$engine_type DEFAULT CHARSET latin1;
 
 --echo #
---echo # Show how much rows are affected by each statement.
+--echo # Show how many rows are affected by each statement.
 --echo #
 --enable_info
 
 --echo #
---echo # Insert a big row.
+--echo # Insert some big rows.
 --echo #
-#
-# 256MB
-#INSERT INTO t1 VALUES (REPEAT('ManyMegaByteBlck', 16777216));
-#
-# 32MB
+
+--echo 256MB
+INSERT INTO t1 VALUES (REPEAT('ManyMegaByteBlck', 16777216));
+
+--echo 32MB
 INSERT INTO t1 VALUES (REPEAT('ManyMegaByteBlck', 2097152));
-#
-# 4MB
-#INSERT INTO t1 VALUES (REPEAT('ManyMegaByteBlck', 262144));
-#
-# 512KB
-#INSERT INTO t1 VALUES (REPEAT('ManyMegaByteBlck', 32768));
+
+--echo 4MB
+INSERT INTO t1 VALUES (REPEAT('ManyMegaByteBlck', 262144));
+
+--echo 512KB
+INSERT INTO t1 VALUES (REPEAT('ManyMegaByteBlck', 32768));
 
 --echo #
 --echo # Show what we have in the table.
 --echo # Do not display the column value itself, just its length.
 --echo #
+--sorted_result
 query_vertical SELECT LENGTH(c1) FROM t1;
 
 --echo #
---echo # Grow the row by updating.
+--echo # Grow the rows by updating.
 --echo #
 UPDATE t1 SET c1 = CONCAT(c1, c1);
 
@@ -88,15 +107,16 @@ UPDATE t1 SET c1 = CONCAT(c1, c1);
 --echo # Show what we have in the table.
 --echo # Do not display the column value itself, just its length.
 --echo #
+--sorted_result
 query_vertical SELECT LENGTH(c1) FROM t1;
 
 --echo #
---echo # Delete the row.
+--echo # Delete the rows.
 --echo #
 DELETE FROM t1 WHERE c1 >= 'ManyMegaByteBlck';
 
 --echo #
---echo # Hide how much rows are affected by each statement.
+--echo # Hide how many rows are affected by each statement.
 --echo #
 --disable_info
 
@@ -113,13 +133,15 @@ FLUSH LOGS;
 --echo #       at the bottom of the test script.
 --echo #
 let $MYSQLD_DATADIR= `select @@datadir`;
---replace_result $MYSQLTEST_VARDIR MYSQLTEST_VARDIR
+--replace_result $MYSQLTEST_VARDIR <MYSQLTEST_VARDIR>
 --replace_regex /SQL_LOAD_MB-[0-9]-[0-9]/SQL_LOAD_MB-#-#/ /exec_time=[0-9]*/exec_time=#/ /end_log_pos [0-9]*/end_log_pos #/ /# at [0-9]*/# at #/ /Xid = [0-9]*/Xid = #/
 --exec $MYSQL_BINLOG -v -v $MYSQLD_DATADIR/master-bin.000001 > $MYSQLTEST_VARDIR/$mysqlbinlog_output
 
 --echo #
 --echo # Cleanup.
 --echo #
+--echo # reset variable value to pass testcase checks
+eval SET @@global.max_allowed_packet = $orig_max_allowed_packet;
 DROP TABLE t1;
 
 --echo remove_file \$MYSQLTEST_VARDIR/$mysqlbinlog_output
diff --git a/scripts/mysqld_multi.sh b/scripts/mysqld_multi.sh
index 631e1e38cc7..3cb4665eb1c 100644
--- a/scripts/mysqld_multi.sh
+++ b/scripts/mysqld_multi.sh
@@ -293,12 +293,7 @@ sub start_mysqlds()
   @groups = &find_groups($groupids);
   for ($i = 0; defined($groups[$i]); $i++)
   {
-    # Defaults are made explicit parameters to server execution...
     @options = defaults_for_group($groups[$i]);
-    # ...so server MUST NOT try to read again from some config file, especially
-    # as the "right" file may be unknown to the server if we are using
-    # --defaults-file=... params in here.
-    unshift(@options,"--no-defaults");  
 
     $mysqld_found= 1; # The default
     $mysqld_found= 0 if (!length($mysqld));