Index: branches/unlabeled/unlabeled-1.100.2/admin/install.php
===================================================================
diff -u -r4238 -r4564
--- branches/unlabeled/unlabeled-1.100.2/admin/install.php	(.../install.php)	(revision 4238)
+++ branches/unlabeled/unlabeled-1.100.2/admin/install.php	(.../install.php)	(revision 4564)
@@ -1,7 +1,8 @@
 <?php
 
 error_reporting(E_ALL);
-ini_set('max_execution_time', 0);
+set_time_limit(0);
+ini_set('memory_limit', -1);
 
 define('BACKUP_NAME', 'dump(.*).txt'); // how backup dump files are named
 $general_error = '';
@@ -721,7 +722,9 @@
 		$css_item->Compile();
 		$application->DB->Query( sprintf($theme_update_sql, $stylesheet_id, $application->DB->qstr( getArrayValue($css_hash,$stylesheet_id) ) ) );
 	}
-	$application->Done();
+	
+	// do redirect, because upgrade scripts can eat a lot or memory used for language pack upgrade operation
+	$application->Redirect('install', Array('state' => 'languagepack_upgrade'), '', 'install.php');
 	// compile stylesheets: end
 
     $state = 'languagepack_upgrade';