• A set of processes are said to be in deadlock situation when each process in the set is waiting for an event, that can be caused by another process in the set.
  • So simply, when two threads needs two different resources and each of them has the lock of the resource that the other need, it is a deadlock.
  • A deadlock occurs when all processes lock the resource simultaneously (black lines). The deadlock can be resolved by breaking the symmetry.
  • Let’s explain all four conditions related to deadlock in the context of the scenario with two processes and two resources: Mutual Exclusion.
  • Below is an example of a deadlock situation: If thread 1 locks A, and tries to lock B, and thread 2 has already locked B, and tries to lock A, a deadlock arises.
  • Deadlock. From PCGamingWiki, the wiki about fixing PC games. ... Icon overlay.png. Deadlock on MobyGames.
  • Programs could request further allocations of resources after they had begun running. This led to the problem of the deadlock. Here is the simplest example
  • Thus ignoring the deadlock method can be useful in many cases but it is not perfect in order to remove the deadlock from the operating system.
  • For example, a deadlock in a hospital’s life support system or in the guidance system aboard an aircraft could endanger lives.
  • In this article, we will learn about what is Deadlock in DBMS with the help of examples. Then we will look at the necessary conditions for a Deadlock to occur.