* 2011.06.08 11:25 : crashed with no console message; rebooted
 * 2012-01-24T11:26:16  system unresponsive, nothing on console, ganglia reporting high [attachment:ippc20-memorygraph-2012-01-24.png memory] usage, power cycled by gavin
 * 2015-01-28 06:45 : crashed with kernel panic: [wiki:ippc20.crashdump.20150128]