From: Eric Wong Date: 2014-01-28T00:37:25+00:00 Subject: [ruby-core:60156] Re: [ruby-trunk - Bug #9365] Sporadic TypeError (wrong argument type Thread (expected VM/thread)) from IO#close (via Net:HTTP) Thanks for the bug report, I think we need more info... What else are you running? (threads, weird extensions, etc) Mainly, which C extensions which touch threading? And how many threads do you need to reproduce this issue with? Thanks.