A set of waiting processes P0, P1, Pn must exist, with P0 waiting for a resource held by P1, P1 waiting for a resource held by P2,..., Pn-1 waiting for a resource held by Pn, and Pn waiting for a...

A set of waiting processes P0, P1, Pn must exist, with P0 waiting for a resource held by P1, P1 waiting for a resource held by P2,..., Pn-1 waiting for a resource held by Pn, and Pn waiting for a resource held by P0.

The term "deadlock" is used to describe this situation.