Multithreaded Debugging
Explore systematic steps to debug multithreaded programs by focusing on shared resources and their access patterns. Learn to identify code paths, analyze logs, and construct timelines to uncover root causes of crashes, hangs, and inconsistent behaviors in concurrent applications.
We'll cover the following...
When the program mishandles scenario(s) where two or more threads share a resource, it leads to multithreaded issues. Depending on the language and the platform, threads can share various resources (variables, files, locks, etc.). Each thread must be mindful that a shared resource must be handled carefully. Ensuring that no other thread is accessing it simultaneously when a thread modifies a shared resource is vital.
Some common symptoms of multithreading issues are crashes, hangs, corruption, etc. Also, another critical symptom in addition to the above is nondeterminism or inconsistency of the symptom where the crash or the hang may only happen sometimes. This course covers how to handle crashes and deadlocks in their lessons. Here, we’ll discuss some general ideas and guidelines.