I have the code below : struct radacct_thread_handle { switch_core_session_t *session; switch_mutex_t *mutex; switch_thread_cond_t *cond; }; static switch_status_t my_on_routing(switch_core_session_t *session){ switch_thread_t *thread; switch_threadattr_t *thd_attr = NULL; switch_memory_pool_t *pool; struct radacct_thread_handle *thread_params = NULL; pool = switch_core_session_get_pool(session); thread_params->session = session; ... } when the program reaches the last line (thread_params->session = session;) I get a core dump. Is this a memory allocation error? Is it because I am making use of the wrong pool? Please enlighten me because I am not an experienced c programmer, and I am struggling to get familiar with the FS API. -- ------------------------------------------- Apostolos Pantsiopoulos Kinetix Tele.com R & D email: regs@kinetix.gr -------------------------------------------