Cognitive Scaffold

Preparing your thinking workspace

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MENTAL MODEL · M4389

Deadlock

Deadlock
BehaviorHigh supportOrganizational Behavior
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Version 1.0.0 · Updated 2026-07-28

CORE DEFINITION

Deadlock, also translated as dead knot, is a term in computer science. When two or more computing units are each waiting for the other to stop executing in order to acquire system resources, and neither side exits early, it is called a deadlock. In multitasking operating systems, to coordinate different threads and manage resource acquisition, the operating system must solve this problem to ensure normal operation. A similar situation is called a 'livelock'.

SCAFFOLDING EFFECT

psychology

Reduce cognitive load

Deadlock, also translated as dead knot, is a term in computer science. When two or more computing units are each waiting for the other to stop executing in order to acquire system resources, and neither side exits early, it is called a deadlock. In multitasking operating systems, to coordinate different threads and manage resource acquisition, the operating system must solve this problem to ensure normal operation. A similar situation is called a 'livelock'.

anchor

Anchor fast decisions

Multiple entities hold resources and wait in a cycle; when the four necessary conditions (mutual exclusion, hold and wait, no preemption, circular wait) are all present, permanent blockage occurs.

MINIMUM ACTION

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Source support: Explicit

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