> Because as soon as you do the atomic_dec_and_test() on css->refcnt and > the refcnt hits zero, then theoretically someone other thread (that > already holds container_mutex) could check that the refcount is zero > and free the container structure. Not just theory ... I've debugged crashes from live customer systems that were basically this race. -- I won't rest till it's the best ... Programmer, Linux Scalability Paul Jackson <pj@xxxxxxx> 1.925.600.0401 _______________________________________________ Containers mailing list Containers@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/containers