Boot-time memory difference
(delta in bytes from test_v3.15-rc1 (c9eaa447e77efe77b7fa4c953bd62de8297fd6c5))
  avail  rsrvd   high  freed  board          kconfig
    -4k     4k      .      .  2420n800       omap2plus_defconfig_n800_only_a
    -4k     4k      .      .  3530es3beagle  omap2plus_defconfig