Dear list: This is my first mail to the list. I hope that my data and email are well formed. We are using freeswitch as voicemail in a production environment and every week we obtain a core dump like the attached file. The error occurs in the CoreSession::recordFile function when the customer try to record a greeting message. As is normal it's not possible to attach the entire core file, as well I attached the backtrace following the debugging guide in the wiki: https://wiki.freeswitch.org/wiki/Debugging_Freeswitch. I hope that the attached file help you to find the error. If more information or testing is needed please let me know. I'm looking for a similar core in the list, but all errors related with this issue are different, from my point of view. Thank you in advance for your support. Cheers and best regards. -- *Eduardo Alonso Gil* VoIP Systems Engineer @ Quobis <http://www.quobis.com/> | e: eduardo.alonso@quobis.com | t: +34902999465