duerst / it.aoyama.ac.jp wrote: > > Please tell me what I can do to help you solve this problem. Oops, I guess pthread_kill isn't going to work in cygwin :x This brings the Cygwin pthreads timer thread closer to what was in 2.5 by setting ec->interrupt_flag (via rb_threadptr_check_signal): https://80x24.org/spew/20180923084138.8015-1-e / 80x24.org/raw I suspect the "timer_thread_function()" call is redundant and you can comment it out, too. Honestly, if this doesn't work, I don't know how 2.5 and earlier worked with Cygwin... Also, does this work if you use other Windows environments which use thread_win32.c instead? Thanks for your patience. Unsubscribe: <mailto:ruby-core-request / ruby-lang.org?subject=unsubscribe> <http://lists.ruby-lang.org/cgi-bin/mailman/options/ruby-core>