Pro lesson · Preview

Deadlocks & How to Avoid Them

Two tasks each holding a lock the other needs, frozen forever: the four conditions for deadlock, and the fixes (consistent lock ordering, avoiding hold-and-wait, and timeouts).

22 min read

This lesson is part of Pro

Upgrade to unlock the full lesson and the complete interview Q&A.

Unlock with Pro

5 interview questions on this topic

Each one opens a full worked answer.

What is a deadlock and what's the classic example?What four conditions are required for a deadlock?What's the most practical way to prevent deadlock in an RTOS application?Does priority inheritance prevent deadlock?What is livelock, and how is it different from deadlock?

This is just the start

Sign up free to track your progress through this course, mark lessons complete, and work through the full interview Q&A.

Sign up freeSee pricing

More in RTOS & Real-Time Concepts

Bare-Metal vs RTOSTasks & the SchedulerPreemptive vs Round-Robin Scheduling
Context Switching
Mutexes & Semaphores
Queues & Inter-Task Communication
Deadlocks & How to Avoid Them | EmbeddedPrep.io