#542: Attempt to unlock a mutex which is not locked (ThreadError) -------------------------------------+-------------------------------------- Reporter: valerii.hiora@… | Owner: lsansonetti@… Type: defect | Status: new Priority: major | Milestone: MacRuby 1.0 Component: MacRuby | Keywords: -------------------------------------+-------------------------------------- Comment(by jhemmelg@…): I think I have a possible reduction for this problem. I was prototyping some thread code for work and tried it out on macruby version 0.8. It acts like a race condition. Mostly it manifests with the error about unlocking an unlocked mutex, but I have had it end up with the mutex locked and the threads blocked. Here is a sample of running the script: {{{ $ macruby testThreadComm.rb 0 ^C $ macruby testThreadComm.rb 0 1251879 2504224 3709045 5051891 6291455 7625310 8934016 $ macruby testThreadComm.rb 0 1315628 2659968 3938967 testThreadComm.rb:62:in `<main>': Attempt to unlock a mutex which is not locked (ThreadError) }}} The first time the program locked up and I had to kill it. I assume the mutex was locked, blocking progress on either thread. The second invocation is a clean run, and the third ends with the mutex being unlocked when it shouldn't be. Most of the time it completes without a problem. -- Ticket URL: <http://www.macruby.org/trac/ticket/542#comment:3> MacRuby <http://macruby.org/>