Hi all, I am working (always) on a multithread tracing system. I would know if there is a method to trace, with LTTng, an lll_lock or a lowlevel function futex_wait. I want establish if a synchronization primitive (like pthread_mutex_lock or sem_wait) has acquires a lock or not. Thanks a lot, -- Ing. Gian Lorenzo Meocci http://www.meocci.it