commit 0ced83dcfbb19af1201202e1af0a7073c338aabd
Author: Daniel P. Berrange <berrange@redhat.com>
Date:   Fri May 3 20:56:50 2013 +0100

    Escaping leading '.' in cgroup names
    
    Escaping a leading '.' with '_' in the cgroup names
    
    Signed-off-by: Daniel P. Berrange <berrange@redhat.com>

Index: libvirt-1.0.5.1/src/util/vircgroup.c
===================================================================
--- libvirt-1.0.5.1.orig/src/util/vircgroup.c
+++ libvirt-1.0.5.1/src/util/vircgroup.c
@@ -1106,7 +1106,8 @@ static int virCgroupPartitionNeedsEscapi
     if (STRPREFIX(path, "cgroup."))
         return 1;
 
-    if (path[0] == '_')
+    if (path[0] == '_' ||
+        path[0] == '.')
         return 1;
 
     if (!(fp = fopen("/proc/cgroups", "r")))