root@roadrunner:/sys/power# cat state freeze standby mem root@roadrunner:/sys/power# echo "freeze" > state [ 1043.490000] PM: Syncing filesystems ... done. [ 1043.510000] Freezing user space processes ... (elapsed 0.005 seconds) done. [ 1043.520000] Freezing remaining freezable tasks ... (elapsed 0.002 seconds) done. [ 1043.530000] Suspending console(s) (use no_console_suspend to debug)