From: "kosaki (Motohiro KOSAKI)" <kosaki.motohiro@...>
Date: 2012-11-29T11:53:04+09:00
Subject: [ruby-core:50288] [ruby-trunk - Bug #7461][Closed] Deadlock


Issue #7461 has been updated by kosaki (Motohiro KOSAKI).

Status changed from Open to Closed

fixed at r37964
----------------------------------------
Bug #7461: Deadlock
https://bugs.ruby-lang.org/issues/7461#change-34113

Author: zenspider (Ryan Davis)
Status: Closed
Priority: Urgent
Assignee: 
Category: 
Target version: 
ruby -v: 2.0


When I try to update minitest in trunk and run my tests I get the following error:

% ./miniruby -I./lib  ./tool/runruby.rb --extout=.ext -- -Itest test/minitest/test_minitest_unit.rb
Run options: --seed 61066

# Running tests:

...............................................................................................................S....................../Users/ryan/Work/svn/ruby/ruby/lib/minitest/parallel_each.rb:34:in `join': No live threads left. Deadlock?	from /Users/ryan/Work/svn/ruby/ruby/lib/minitest/parallel_each.rb:34:in `map'
	from /Users/ryan/Work/svn/ruby/ruby/lib/minitest/parallel_each.rb:34:in `each'
	from /Users/ryan/Work/svn/ruby/ruby/lib/minitest/unit.rb:898:in `map'
	from /Users/ryan/Work/svn/ruby/ruby/lib/minitest/unit.rb:898:in `_run_suites'
	from /Users/ryan/Work/svn/ruby/ruby/lib/minitest/unit.rb:867:in `_run_anything'
	from /Users/ryan/Work/svn/ruby/ruby/lib/minitest/unit.rb:1060:in `run_tests'
	from /Users/ryan/Work/svn/ruby/ruby/lib/minitest/unit.rb:1047:in `block in _run'
	from /Users/ryan/Work/svn/ruby/ruby/lib/minitest/unit.rb:1046:in `each'
	from /Users/ryan/Work/svn/ruby/ruby/lib/minitest/unit.rb:1046:in `_run'
	from /Users/ryan/Work/svn/ruby/ruby/lib/minitest/unit.rb:1035:in `run'
	from /Users/ryan/Work/svn/ruby/ruby/lib/minitest/unit.rb:789:in `block in autorun'
rake aborted!
Command failed with status (1): [./miniruby -I./lib  ./tool/runruby.rb --ex...]

We've inspected the code and don't see how/why this is happening on our side. This can be repro'd against `git clone git://github.com/seattlerb/minitest.git` or even `gem unpack minitest`. I believe this is related to the other thread bugs we've seen but it is harder for us to track down.

This is preventing me from merging to trunk.


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