diff --git a/ddf-erase b/ddf-erase
new file mode 100644
index 0000000..0c1cfde
--- /dev/null
+++ b/ddf-erase
@@ -0,0 +1,31 @@
+Allow dmraid to erase ddf metadata properly.
+
+2 things go wrong:
+ 1/ when seeking to the anchor, it seeks to far by a factor of 512
+ 2/ when writing to the anchor, it writes 0 bytes, not 512.
+
+Signed-off-by: NeilBrown <neilb@suse.de>
+References: bnc#712671
+---
+ lib/format/ddf/ddf1.c |    3 ++-
+ 1 file changed, 2 insertions(+), 1 deletion(-)
+
+--- 1.0.0.rc16.orig/lib/format/ddf/ddf1.c
++++ 1.0.0.rc16/lib/format/ddf/ddf1.c
+@@ -536,7 +536,7 @@ try_to_find_ddf1(struct lib_context *lc,
+ 		       ddf1_sboffset) || !is_ddf1(lc, di, ddf1))
+ 		goto bad;
+ 
+-	ddf1->anchor_offset = ddf1_sboffset;
++	ddf1->anchor_offset = ddf1_sboffset / 512;
+ 
+ 	/* Convert endianness */
+ 	ddf1->in_cpu_format = 0;
+@@ -967,6 +967,7 @@ setup_rd(struct lib_context *lc, struct
+ 		ma[i].offset = ddf1->primary->primary_table_lba;
+ 
+ 	ma->offset = ddf1->anchor_offset;
++	ma->size = 512;
+ 	(ma++)->area = &ddf1->anchor;
+ 
+ 	(ma++)->area = ddf1->primary;
diff --git a/dmraid.changes b/dmraid.changes
index d8f9795..91ffd99 100644
--- a/dmraid.changes
+++ b/dmraid.changes
@@ -1,3 +1,12 @@
+-------------------------------------------------------------------
+Wed Sep 21 23:57:12 UTC 2011 - nfbrown@suse.com
+
+- rebuild.fix: When a rebuild is requested that
+  cannot be handled, report and error instead of
+  crashing (bnc#716904)
+- ddf-erase: Allow dmraid to erase ddf metadata
+  properly (bnc#712671)
+
 -------------------------------------------------------------------
 Fri May 27 09:29:31 UTC 2011 - lnussel@suse.de
 
diff --git a/dmraid.spec b/dmraid.spec
index 1b48e52..cfb04d1 100644
--- a/dmraid.spec
+++ b/dmraid.spec
@@ -40,6 +40,8 @@ Patch2:         dmraid-1.0.0.rc13-geometry.patch
 Patch3:         lib-install.patch
 Patch4:         handle_spaces
 Patch5:         remove_trylock
+Patch6:         rebuild.fix
+Patch7:         ddf-erase
 BuildRoot:      %{_tmppath}/%{name}-%{version}-build
 PreReq:         %fillup_prereq
 
@@ -76,6 +78,8 @@ Authors:
 %patch3 -p1
 %patch4 -p1
 %patch5 -p2
+%patch6 -p1
+%patch7 -p1
 cp %{SOURCE3} .
 
 %build
diff --git a/rebuild.fix b/rebuild.fix
new file mode 100644
index 0000000..18882d0
--- /dev/null
+++ b/rebuild.fix
@@ -0,0 +1,27 @@
+Only imsm arrays can be rebuild by dmraid
+
+Others cause a segfault.
+
+Fix that so they print a more helpful error messages.
+
+From: Leonardo Chiquitto <lchiquitto@suse.com>
+Reviewed-by: NeilBrown <neilb@suse.de>
+References: bnc#716904
+---
+ lib/metadata/reconfig.c |    5 +++++
+ 1 file changed, 5 insertions(+)
+
+--- 1.0.0.rc16.orig/lib/metadata/reconfig.c
++++ 1.0.0.rc16/lib/metadata/reconfig.c
+@@ -552,6 +552,11 @@ _rebuild_raidset(struct lib_context *lc,
+ 	int driveRebuild = 1;
+ 
+ 	rs = find_group(lc, sub_rs);
++	if (!rs) {
++		log_print(lc, "Rebuild: array \"%s\" cannot be rebuilt by dmraid.\n",
++			  set_name);
++		return 1;
++	}
+ 
+ 	/* raid 0 cannot be rebuild - exit */
+ 	if (T_RAID0(sub_rs) && (!SETS(sub_rs))) {