Index: xen-unstable/xen/Rules.mk
===================================================================
--- xen-unstable.orig/xen/Rules.mk
+++ xen-unstable/xen/Rules.mk
@@ -6,7 +6,7 @@
 verbose     ?= n
 perfc       ?= n
 perfc_arrays?= n
-crash_debug ?= n
+crash_debug ?= y
 
 # Hardcoded configuration implications and dependencies.
 # Do this is a neater way if it becomes unwieldy.
Index: xen-unstable/Config.mk
===================================================================
--- xen-unstable.orig/Config.mk
+++ xen-unstable/Config.mk
@@ -1,7 +1,7 @@
 # -*- mode: Makefile; -*-
 
 # A debug build of Xen and tools?
-debug ?= n
+debug ?= y
 
 # Currently supported architectures: x86_32, x86_64
 XEN_COMPILE_ARCH    ?= $(shell uname -m | sed -e s/i.86/x86_32/)
