Operating system lacks s mechanisms for the ordered acquisition of synchronization objects. The web servers keep locking up. All processes are running fine except web servers who are stuck in call to pthread_mutex_lock(). Customers cannot access the servers during peak times to due deadlock of web servers.

Which deadlock avoidance approach would be best used and why for a server NOT using ordered acquisition of mutexes?

All set figured it out!

Care to share? I tried looking into it a bit and from my experience it seemed like a question that was more a test on you textbook/study material than one with definitive answer or the way they were phrasing deadlock avoidance approaches would not be universally recognized.