diff --git a/includes/ServiceWiring.php b/includes/ServiceWiring.php
index 94cbff6c944..43f3e1478c3 100644
--- a/includes/ServiceWiring.php
+++ b/includes/ServiceWiring.php
@@ -470,7 +470,7 @@ return [
 		$config = $services->getMainConfig();
 		$cacheId = ObjectCache::detectLocalServerCache();
 
-		return ObjectCache::newFromParams( $config->get( 'ObjectCaches' )[$cacheId] );
+		return ObjectCache::newFromParams( $config->get( 'ObjectCaches' )[$cacheId], $config );
 	},
 
 	'LockManagerGroupFactory' => function ( MediaWikiServices $services ) : LockManagerGroupFactory {
@@ -500,10 +500,9 @@ return [
 		}
 
 		$params = $mainConfig->get( 'ObjectCaches' )[$id];
-		$logger = $params['logger'] = LoggerFactory::getInstance( $params['loggroup'] ?? 'objectcache' );
 
-		$store = ObjectCache::newFromParams( $params );
-		$logger->debug( 'MainObjectStash using store {class}', [
+		$store = ObjectCache::newFromParams( $params, $mainConfig );
+		$store->getLogger()->debug( 'MainObjectStash using store {class}', [
 			'class' => get_class( $store )
 		] );
 
@@ -521,15 +520,14 @@ return [
 
 		$params = $mainConfig->get( 'WANObjectCaches' )[$id];
 
-		$logger = LoggerFactory::getInstance( $params['loggroup'] ?? 'objectcache' );
-
 		$objectCacheId = $params['cacheId'];
 		if ( !isset( $mainConfig->get( 'ObjectCaches' )[$objectCacheId] ) ) {
 			throw new UnexpectedValueException(
 				"Cache type \"$objectCacheId\" is not present in \$wgObjectCaches." );
 		}
 		$storeParams = $mainConfig->get( 'ObjectCaches' )[$objectCacheId];
-		$store = ObjectCache::newFromParams( $storeParams );
+		$store = ObjectCache::newFromParams( $storeParams, $mainConfig );
+		$logger = $store->getLogger();
 		$logger->debug( 'MainWANObjectCache using store {class}', [
 			'class' => get_class( $store )
 		] );
diff --git a/includes/libs/objectcache/BagOStuff.php b/includes/libs/objectcache/BagOStuff.php
index 4a47c66c832..f321bdd1e76 100644
--- a/includes/libs/objectcache/BagOStuff.php
+++ b/includes/libs/objectcache/BagOStuff.php
@@ -113,6 +113,14 @@ abstract class BagOStuff implements
 		$this->logger = $logger;
 	}
 
+	/**
+	 * @since 1.35
+	 * @return LoggerInterface
+	 */
+	public function getLogger() : LoggerInterface {
+		return $this->logger;
+	}
+
 	/**
 	 * @param bool $enabled
 	 */
diff --git a/includes/objectcache/ObjectCache.php b/includes/objectcache/ObjectCache.php
index e6c387de355..cd239443ac2 100644
--- a/includes/objectcache/ObjectCache.php
+++ b/includes/objectcache/ObjectCache.php
@@ -136,16 +136,17 @@ class ObjectCache {
 	 *  - class: BagOStuff subclass constructed with $params.
 	 *  - loggroup: Alias to set 'logger' key with LoggerFactory group.
 	 *  - .. Other parameters passed to factory or class.
+	 * @param Config|null $conf (Since 1.35)
 	 * @return BagOStuff
 	 * @throws InvalidArgumentException
 	 */
-	public static function newFromParams( $params ) {
+	public static function newFromParams( array $params, Config $conf = null ) {
 		// Apply default parameters and resolve the logger instance
 		$params += [
 			'logger' => LoggerFactory::getInstance( $params['loggroup'] ?? 'objectcache' ),
 			'keyspace' => self::getDefaultKeyspace(),
 			'asyncHandler' => [ DeferredUpdates::class, 'addCallableUpdate' ],
-			'reportDupes' => true
+			'reportDupes' => true,
 		];
 
 		if ( isset( $params['factory'] ) ) {
@@ -159,6 +160,21 @@ class ObjectCache {
 		}
 
 		$class = $params['class'];
+		// Not passing $conf is deprecated since 1.35
+		// NOTE: We cannot use MediaWikiServices::getMainConfig here as fallback,
+		// because ObjectCache::newFromParams is used for service wiring and
+		// in the ExtensionRegistry, and must not itself cause MediaWikiServices
+		// to be initialised. In particular, doing so would break the
+		// GlobalPreferences extension, which is overriding a service and then
+		// hard-requiring their additional methods to exist on the service object
+		// (T210449, T238466).
+		// TODO: Hard-deprecate before 1.35 gets cut, and remove in 1.36.
+		$conf = $conf ?? new HashConfig( [
+			'SQLiteDataDir' => $GLOBALS['wgSQLiteDataDir'],
+			'MemCachedServers' => $GLOBALS['wgMemCachedServers'],
+			'MemCachedPersistent' => $GLOBALS['wgMemCachedPersistent'],
+			'MemCachedTimeout' => $GLOBALS['wgMemCachedTimeout'],
+		] );
 
 		// Do b/c logic for SqlBagOStuff
 		if ( is_a( $class, SqlBagOStuff::class, true ) ) {
@@ -170,7 +186,7 @@ class ObjectCache {
 			if ( isset( $params['servers'] ) ) {
 				foreach ( $params['servers'] as &$server ) {
 					if ( $server['type'] === 'sqlite' && !isset( $server['dbDirectory'] ) ) {
-						$server['dbDirectory'] = $GLOBALS['wgSQLiteDataDir'];
+						$server['dbDirectory'] = $conf->get( 'SQLiteDataDir' );
 					}
 				}
 			}
@@ -179,9 +195,9 @@ class ObjectCache {
 		// Do b/c logic for MemcachedBagOStuff
 		if ( is_subclass_of( $class, MemcachedBagOStuff::class ) ) {
 			$params += [
-				'servers' => $GLOBALS['wgMemCachedServers'],
-				'persistent' => $GLOBALS['wgMemCachedPersistent'],
-				'timeout' => $GLOBALS['wgMemCachedTimeout']
+				'servers' => $conf->get( 'MemCachedServers' ),
+				'persistent' => $conf->get( 'MemCachedPersistent' ),
+				'timeout' => $conf->get( 'MemCachedTimeout' ),
 			];
 		}