Index: jessie-stage2/rootfs/etc/dphys-swapfile
===================================================================
--- jessie-stage2.orig/rootfs/etc/dphys-swapfile
+++ jessie-stage2/rootfs/etc/dphys-swapfile
@@ -13,7 +13,7 @@
 
 # set size to absolute value, leaving empty (default) then uses computed value
 #   you most likely don't want this, unless you have an special disk situation
-#CONF_SWAPSIZE=
+CONF_SWAPSIZE=100
 
 # set size to computed value, this times RAM size, dynamically adapts,
 #   guarantees that there is enough swap without wasting disk space on excess