--- httpd-2.4.1/modules/ssl/ssl_engine_mutex.c.orig	2011-12-05 01:08:01.000000000 +0100
+++ httpd-2.4.1/modules/ssl/ssl_engine_mutex.c	2012-02-22 00:07:35.402966515 +0100
@@ -47,6 +47,9 @@
         return TRUE;
     }
 
+    if (mc->szMutexFile)
+	    apr_file_remove(mc->szMutexFile, p);
+
     if ((rv = ap_global_mutex_create(&mc->pMutex, NULL, SSL_CACHE_MUTEX_TYPE,
                                      NULL, s, s->process->pool, 0))
             != APR_SUCCESS) {