Hi Benny, I have noticed the ticket #985 Write to freed memory area with IoCompletionPort (IOCP) ioqueue backend may lead to application crash has been "fixed" somehow in 1.x branch. But the problem still exists in 1.0.x branch and is annoying especially when you debug application shutdown. Are you planning to solve it for 1.0.x branch as well? Or is there a workaround you would suggest? If so, is there any performance or other penalty? Thanks. - Vali