mtr_misc.pl, mtr_report.pl:

  Try kill all children to the mysql-test-run process when exiting
mtr_process.pl:
  Added new function mtr_exit() that try kill all children to the mysql-test-run process when exiting
mysql-test-run.pl:
  Try kill all children to the mysql-test-run process when exiting
  New --vardir caused problems on Windows
  Changed faulty calls to error() to mtr_error()

mysql-test/lib/mtr_misc.pl

@@ -25,7 +25,7 @@ sub mtr_full_hostname () {
   if ( $hostname !~ /\./ )
   {
     my $address=   gethostbyname($hostname)
-      or die "Couldn't resolve $hostname : $!";
+      or mtr_error("Couldn't resolve $hostname : $!");
     my $fullname=  gethostbyaddr($address, AF_INET);
     $hostname= $fullname if $fullname; 
   }

mysql-test/lib/mtr_process.pl

@@ -17,6 +17,7 @@ sub mtr_spawn ($$$$$$);
 sub mtr_stop_mysqld_servers ($);
 sub mtr_kill_leftovers ();
 sub mtr_record_dead_children ();
+sub mtr_exit ($);
 sub sleep_until_file_created ($$$);
 
 # static in C
@@ -784,4 +785,17 @@ sub sleep_until_file_created ($$$) {
 }
 
 
+##############################################################################
+#
+#  When we exit, we kill off all children
+#
+##############################################################################
+
+sub mtr_exit ($) {
+  my $code= shift;
+  local $SIG{HUP} = 'IGNORE';
+  kill('HUP', -$$);
+  exit($code);
+}
+
 1;

mysql-test/lib/mtr_report.pl

@@ -268,7 +268,8 @@ sub mtr_warning (@) {
 }
 
 sub mtr_error (@) {
-  die "mysql-test-run: *** ERROR: ",join(" ", @_),"\n";
+  print STDERR "mysql-test-run: *** ERROR: ",join(" ", @_),"\n";
+  mtr_exit(1);
 }
 
 sub mtr_debug (@) {

mysql-test/mysql-test-run.pl

@@ -398,7 +398,7 @@ sub main () {
     }
   }
 
-  exit(0);
+  mtr_exit(0);
 }
 
 ##############################################################################
@@ -568,7 +568,9 @@ sub command_line_setup () {
     $opt_vardir= "$glob_mysql_test_dir/var";
   }
 
-  if ( $opt_vardir !~ m,^/, )
+  # We make the path absolute, as the server will do a chdir() before usage
+  unless ( $opt_vardir =~ m,^/, or
+           ($glob_win32 and $opt_vardir =~ m,^[a-z]:/,i) )
   {
     # Make absolute path, relative test dir
     $opt_vardir= "$glob_mysql_test_dir/$opt_vardir";
@@ -1295,9 +1297,9 @@ sub install_db ($$) {
   mtr_report("Installing \u$type Databases");
 
   open(IN, $init_db_sql)
-    or error("Can't open $init_db_sql: $!");
+    or mtr_error("Can't open $init_db_sql: $!");
   open(OUT, ">", $init_db_sql_tmp)
-    or error("Can't write to $init_db_sql_tmp: $!");
+    or mtr_error("Can't write to $init_db_sql_tmp: $!");
   while (<IN>)
   {
     chomp;
@@ -1571,7 +1573,7 @@ sub report_failure_and_restart ($) {
     {
       stop_masters_slaves();
     }
-    exit(1);
+    mtr_exit(1);
   }
 
   # FIXME always terminate on failure?!
@@ -2270,5 +2272,5 @@ Options not yet described, or that I want to look into more
   with-openssl          
 
 HERE
-  exit(1);
+  mtr_exit(1);
 }