From: Jeremy Evans Date: 2011-08-03T12:15:27+09:00 Subject: [ruby-core:38737] [Ruby 1.9 - Bug #5130] Thread.pass sticks on OpenBSD Issue #5130 has been updated by Jeremy Evans. Here's gdb output from attaching to a process (OpenBSD-current, not 4.9), and using ruby instead of miniruby: $ ruby19 -e 'Thread.new{Thread.pass}' $ gdb ruby19 17940 (gdb) bt #0 0x0000000205b31da7 in pthread_cond_broadcast (cond=0x20b4bb040) at /usr/src/lib/libpthread/uthread/uthread_cond.c:655 #1 0x0000000204bb3709 in native_cond_broadcast () from /usr/local/lib/libruby19.so.1.91 #2 0x0000000204bb4424 in rb_thread_schedule_limits () from /usr/local/lib/libruby19.so.1.91 #3 0x0000000204bb476b in rb_thread_schedule () from /usr/local/lib/libruby19.so.1.91 #4 0x0000000204bb4a6e in rb_thread_terminate_all () from /usr/local/lib/libruby19.so.1.91 #5 0x0000000204abc8da in ruby_cleanup () from /usr/local/lib/libruby19.so.1.91 #6 0x0000000204abc996 in ruby_run_node () from /usr/local/lib/libruby19.so.1.91 #7 0x0000000000400c42 in main () (gdb) info threads 4 process 17940, thread 0x208e0f000 (RUNNING) 0x0000000205b31da7 in pthread_cond_broadcast (cond=0x20b4bb040) at /usr/src/lib/libpthread/uthread/uthread_cond.c:655 3 process 17940, thread 0x2034be000 (SELECT_WAIT) _thread_kern_sched (scp=0x0) at /usr/src/lib/libpthread/uthread/uthread_kern.c:495 2 process 17940, thread 0x206059000 (COND_WAIT) _thread_kern_sched (scp=0x0) at /usr/src/lib/libpthread/uthread/uthread_kern.c:495 1 process 17940, thread 0x20a045000 (RUNNING) _thread_kern_sched (scp=0x0) at /usr/src/lib/libpthread/uthread/uthread_kern.c:495 I'll try to spend some time debugging this tomorrow. ---------------------------------------- Bug #5130: Thread.pass sticks on OpenBSD http://redmine.ruby-lang.org/issues/5130 Author: Yui NARUSE Status: Assigned Priority: Normal Assignee: Motohiro KOSAKI Category: core Target version: ruby -v: ruby 1.9.4dev (2011-07-31 trunk 32788) [x86_64-openbsd4.9] =begin On OpenBSD 4.9, following script will stick. ./miniruby -ve'Thread.new{Thread.pass}' =end -- http://redmine.ruby-lang.org