suspend, kdump, swap, ...

Posted Feb 11, 2006 0:40 UTC (Sat) by giraffedata (guest, #1954)
In reply to: suspend, kdump, swap, ... by utoddl
Parent article: Software suspend - again

The challenge of suspend to disk isn't really the task of saving a memory image and restoring it later. The state of the system lives in various places besides main memory that dissolve when the power goes off. For example, an Ethernet adapter has plenty of state in its own memory. Plus, some parts of the system can't tolerate having hours pass in the blink of an eye. So they have to know about the sleep and actively go to sleep and wake up.