Bug #15465: Tests failed on i386-cygwin

• Status: Feedback
• Priority: Normal
• Assignee: -
• Target version: -
• ruby -v: ruby 2.6.0p0 (2018-12-25 revision 66547) [i386-cygwin]
• Backport: 2.4: UNKNOWN, 2.5: UNKNOWN, 2.6: UNKNOWN
• Tags: cygwin, test

[fd0 (Daisuke Fujimura)]

Several tests failed on i386-cygwin

Steps:

$ ./configure
$ make
$ make test |& tee test.log

Failed tests:

$ grep # test.log
#651 test_io.rb:87:in `block in <top (required)>':
       #File.open("megasrc", "w") {|f| f << megacontent }
  #=> killed by SIGKILL (signal 9) (timeout)  megacontent-copy_stream
#920 test_massign.rb:165:in `<top (required)>': core dumped  [ruby-dev:32581]
#1376 test_thread.rb:301:in `<top (required)>':
  #=> killed by SIGIOT (signal 6)
#1377 test_thread.rb:305:in `<top (required)>':
  #=> killed by SIGIOT (signal 6)
#1378 test_thread.rb:310:in `<top (required)>':
  #=> killed by SIGIOT (signal 6)
#1379 test_thread.rb:315:in `<top (required)>':
  #=> killed by SIGIOT (signal 6)
#1380 test_thread.rb:320:in `<top (required)>':
  #=> killed by SIGIOT (signal 6)
#1381 test_thread.rb:325:in `<top (required)>':
  #=> killed by SIGIOT (signal 6)
#1382 test_thread.rb:330:in `<top (required)>':
  #=> killed by SIGIOT (signal 6)

[mame (Yusuke Endoh)]

• Status changed from Open to Feedback

As far as I know, there is no active Ruby maintainer for cygwin environment. And there is no CI for cygwin. Contribution is welcome.

[fd0 (Daisuke Fujimura)]

In case of make btest, test_massign.rb and test_thread.rb succeeded.

The cause of failures is environment variable RUBY_FIBER_MACHINE_STACK_SIZE=1 in tools/runruby.rb.

The workaround (not beautiful) is as follows:

--- origsrc/ruby-2.6.0/tool/runruby.rb  2018-07-10 02:49:21.000000000 +0900
+++ src/ruby-2.6.0/tool/runruby.rb      2019-01-09 16:39:30.366472100 +0900
@@ -99,6 +99,7 @@ env = {
   'RUBY_THREAD_MACHINE_STACK_SIZE' => '1',
   'RUBY_FIBER_MACHINE_STACK_SIZE' => '1',
 }
+env = {} if /i386-cygwin/ =~ RUBY_PLATFORM

 runner = File.join(abs_archdir, "exe/ruby#{config['EXEEXT']}")
 runner = nil unless File.exist?(runner)