Hi Julia, as mentioned in the stable meeting, here is the futex patch that was missing in the v4.9 tree :) The futex state in v4.9 was backported from a later kernel at the time Peter made the patches. That is why all the fixes which were tagged stable did not enter the v4.9 stable tree. I had a "deadlock assert in glibc" from pthread_mutex_lock() which did not make a lot of sense. After comparing the futex code in latest v4.9 and v4.14 I identified a few patches which should be backported. I haven't seen the issue after applying the patches which follow as a reply to this email. They apply on top of v4.9.98-rt76. Sebastian -- To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html