diff --git a/StFocusManager-don-t-unref-removed-groups.patch b/StFocusManager-don-t-unref-removed-groups.patch
new file mode 100644
index 0000000..b079e6a
--- /dev/null
+++ b/StFocusManager-don-t-unref-removed-groups.patch
@@ -0,0 +1,31 @@
+From 141b4ffe877948335ddf5e09722cb618935fa192 Mon Sep 17 00:00:00 2001
+From: Giovanni Campagna <gcampagna@src.gnome.org>
+Date: Sat, 13 Nov 2010 23:11:42 +0100
+Subject: [PATCH] StFocusManager: don't unref removed groups
+
+It is not referencing them when adding, and also it is connecting
+to the "destroy" signal, emitted on dispose, so there is no risk
+of storing finalized objects.
+
+https://bugzilla.gnome.org/show_bug.cgi?id=634781
+---
+ src/st/st-focus-manager.c |    3 +--
+ 1 files changed, 1 insertions(+), 2 deletions(-)
+
+diff --git a/src/st/st-focus-manager.c b/src/st/st-focus-manager.c
+index 542fc5a..8c7bc9d 100644
+--- a/src/st/st-focus-manager.c
++++ b/src/st/st-focus-manager.c
+@@ -70,8 +70,7 @@ static void
+ st_focus_manager_init (StFocusManager *manager)
+ {
+   manager->priv = ST_FOCUS_MANAGER_GET_PRIVATE (manager);
+-  manager->priv->groups = g_hash_table_new_full (NULL, NULL,
+-                                                 g_object_unref, NULL);
++  manager->priv->groups = g_hash_table_new (NULL, NULL);
+ }
+ 
+ static gboolean
+-- 
+1.7.3.2
+
diff --git a/gnome-shell.spec b/gnome-shell.spec
index 81759bd..c35ec08 100644
--- a/gnome-shell.spec
+++ b/gnome-shell.spec
@@ -1,6 +1,6 @@
 Name:           gnome-shell
 Version:        2.91.2
-Release:        1%{?dist}
+Release:        2%{?dist}
 Summary:        Window management and application launching for GNOME
 
 Group:          User Interface/Desktops
@@ -8,6 +8,10 @@ License:        GPLv2+
 URL:            http://live.gnome.org/GnomeShell
 #VCS:		git:git://git.gnome.org/gnome-shell
 Source0:        http://ftp.gnome.org/pub/GNOME/sources/gnome-shell/2.91/%{name}-%{version}.tar.bz2
+
+# https://bugzilla.gnome.org/show_bug.cgi?id=634781
+Patch1: StFocusManager-don-t-unref-removed-groups.patch
+
 BuildRoot:      %(mktemp -ud %{_tmppath}/%{name}-%{version}-%{release}-XXXXXX)
 
 %define clutter_version 1.4.0
@@ -66,6 +70,7 @@ easy to use experience.
 
 %prep
 %setup -q
+%patch1 -p1 -b .unreferenced-groups
 
 %build
 (if ! test -x configure; then NOCONFIGURE=1 ./autogen.sh; fi;
@@ -129,6 +134,9 @@ gconftool-2 --makefile-install-rule \
 glib-compile-schemas --allow-any-name %{_datadir}/glib-2.0/schemas ||:
 
 %changelog
+* Mon Nov 15 2010 Owen Taylor <otaylor@redhat.com> - 2.91.2-2
+- Add a patch from upstream fixing a memory-management crasher
+
 * Tue Nov  9 2010 Owen Taylor <otaylor@redhat.com> - 2.91.2-1
 - Update to 2.91.2