From: "Jonas Pfenniger (zimbatm)" Date: 2011-01-13T09:05:31+09:00 Subject: Re: Threaded Socket communication problem. Yeah, thread debugging is quite hard. Did you try replacing gets/puts with sysread(4096)/write + a buffer ? Also, don't forget to set "Thread.abort_on_exception = true" to not miss any errors. Cheers, zimbatm