diff -u b/core/modules/system/system.module b/core/modules/system/system.module
--- b/core/modules/system/system.module
+++ b/core/modules/system/system.module
@@ -2797,18 +2797,6 @@
       $record->status = 0;
       $record->schema_version = SCHEMA_UNINSTALLED;
     }
-    // Installed schema versions.
-    foreach (KeyValueFactory::get('system.module.schema')->getAll() as $module => $schema_version) {
-      // Due to upgrade there might be schema versions here that are not
-      // present.
-      if (isset($modules[$module])) {
-        $modules[$module]->schema_version = $schema_version;
-      }
-    }
-    // Disabled weights.
-    foreach (KeyValueFactory::get('system.module.weight')->getAll() as $module => $weight) {
-      $modules[$module]->weight = $weight;
-    }
     // Enabled status and weights.
     foreach (config('system.module')->get() as $module => $weight) {
       $modules[$module]->status = 1;
@@ -2820,7 +2808,7 @@
     system_list_reset();
     $modules_cache['data'] = $modules;
   }
-  if (!isset($modules_cache['info_alter']) && drupal_get_bootstrap_phase() == DRUPAL_BOOTSTRAP_FULL) {
+  if (!isset($modules_cache['info_alter']) && drupal_get_bootstrap_phase() == DRUPAL_BOOTSTRAP_CODE) {
     // Invoke hook_system_info_alter() to give installed modules a chance to
     // modify the data in the .info files if necessary. It is not possible to
     // use drupal_alter() which relies on system_list() which relies on this
diff -u b/core/modules/update/update.fetch.inc b/core/modules/update/update.fetch.inc
--- b/core/modules/update/update.fetch.inc
+++ b/core/modules/update/update.fetch.inc
@@ -209,7 +209,7 @@
   // hook_system_info_alter() such as cvs_deploy.
   _update_cache_clear('update_project_projects');
   _update_cache_clear('update_project_data');
-  drupal_static_reset('update_get_projects');
+  //drupal_static_reset('update_get_projects');
 
   $projects = update_get_projects();
 
only in patch2:
unchanged:
--- a/core/modules/system/system.admin.inc
+++ b/core/modules/system/system.admin.inc
@@ -1253,7 +1253,7 @@ function system_modules_uninstall($form, $form_state = NULL) {
   $all_modules = system_rebuild_module_data();
   $disabled_modules = array();
   foreach ($all_modules as $name => $module) {
-    if (empty($module->status) && $module->schema_version > SCHEMA_UNINSTALLED) {
+    if (empty($module->status) && drupal_get_installed_schema_version($module) > SCHEMA_UNINSTALLED) {
       $disabled_modules[$name] = $module;
     }
   }