On Wed, Dec 15, 2004 at 03:43:26PM +0100, Paul Akkermans wrote: > Can someody tell me what a spin lock is? http://www.codeproject.com/threads/spinlocks.asp Apparently its a method of resource locking used in kernels where a blocked process constantly polls for the lock to become available, rather than yielding and waiting for a scheduler or whatever to call it back.