Hi Martin, just noticed this patch on 2014-10-27; may I ask for more details on failing platforms? Also, I experience consistent failures from inproc_shutdown & tcp_shutdown (see below). Are those failure expected/known? All the best, --Ark [ark@arkw nanomsg-latest]$ ./tests/inproc_shutdown Resource temporarily unavailable [11] (tests/../src/utils/thread_posix.inc:58) Aborted [ark@arkw nanomsg-latest]$ ./tests/tcp_shutdown Resource temporarily unavailable [11] (tests/../src/utils/thread_posix.inc:58) Aborted