How to find out a task which caused bitronix transaction to time out

Hi everybody,
my process is failing with a bitronix.tm.BitronixTransaction - time out. Now, the question is how can I find out from logs which task has caused the transaction to timeout. After this timeout I am not able to use bonita anymore and have to restart the tomcat. Which packages should I include into the log to find out which task has caused this transaction timeout? I've tried to log the package bitronix.tm, but this creates 100s of MBs of logs and the whole process is to slow. I am able to get the transaction ID from the log, but this does not help me, because I cannot associate any Task with it.

Thank you,
Filip