ruby -v seems to hang

[factormystic]

It works, but I have to ctrl+c to get back to my terminal.

[root@ForeignLinux ~]# ruby -v
ruby 2.3.0p0 (2015-12-25 revision 53290) [i686-linux]

[1]+  Stopped                 ruby -v

[root@ForeignLinux ~]# jobs
[1]+  Stopped                 ruby -v
[root@ForeignLinux ~]#

[wishstudio]

Verified here. Seems to be something related to futex() system call.

[wishstudio]

This problem is caused by not sending EOF event when close a pipe while another thread is polling it.