I've received a couple of questions in email and in comments about deadlocks involving mysterious-sounding non-lock resources like " exchangeEvent " and " threadpool ". There are a couple of examples in the comments for post http://blogs.msdn.com/bartd/archive/2006/09/25/deadlock-troubleshooting-part...

Here’s an example of the classic scenario that is usually used to introduce the concept of a deadlock in a database: Process A Process B 1. Begin Transaction 1. Begin Transaction 2. Update Part table 2. Update Supplier...

In this post I’ll look at an actual deadlock, then troubleshoot it using the steps I described in Deadlock Troubleshooting, Part 1 so you can see them in action. This is a simplified version of a deadlock scenario that an internal customer here at Microsoft called us for help with. To set up the scenario...

A deadlock is a circular blocking chain, where two or more threads are each blocked by the other so that no one can proceed. When the deadlock monitor thread in SQL Server detects a circular blocking chain, it selects one of the participants as a victim, cancels that spid’s current batch, and rolls...