--- cogl/winsys/cogl-texture-pixmap-x11.c.orig	2014-01-20 17:31:02.000000000 +0000
+++ cogl/winsys/cogl-texture-pixmap-x11.c	2016-04-12 22:21:50.512414862 +0000
@@ -414,7 +414,7 @@
   tex_pixmap->shm_info.shmid = shmget (IPC_PRIVATE,
                                        dummy_image->bytes_per_line
                                        * dummy_image->height,
-                                       IPC_CREAT | 0777);
+                                       IPC_CREAT | 0600);
   if (tex_pixmap->shm_info.shmid == -1)
     goto failed_shmget;
 
@@ -422,6 +422,8 @@
   if (tex_pixmap->shm_info.shmaddr == (void *) -1)
     goto failed_shmat;
 
+  shmctl(tex_pixmap->shm_info.shmid, IPC_RMID, NULL);
+
   tex_pixmap->shm_info.readOnly = False;
 
   if (XShmAttach (display, &tex_pixmap->shm_info) == 0)