On Fri, 26 Nov 2010, Corentin Chary wrote: > agraf reported that qemu_mutex_destroy(vs->output_mutex) was failing > in vnc_disconnect_finish() when the vnc client was disconnected while > updating the screen. > > It's because vnc_worker_thread_loop() tries to unlock the mutex while > not locked. The unlocking call doesn't fail (pthread bug ?), but > the destroy call does. >
Not bug but rather (expected in the absence of PTHREAD_MUTEX_ERRORCHECK) undefined behaviour [1] [1] http://www.opengroup.org/onlinepubs/7990989775/xsh/pthread_mutex_unlock.html -- mailto:av1...@comtv.ru
