Moved to the JCA forum.
Transactions don't deadlock, resources and entity beans do.
Read "READ THIS FIRST" on how to debug JCA / Transactions.
If your problem is EJBs you also need TRACE logging for org.jboss.ejb.plugins
I don't know how many more times I will have to type the above paragraph, even though
it is in the "READ THIS FIRST". You clearly have not used search.
either for the debugging question or your original deadlock problem.