Bug #2359: test_threads.rb:test_list

• Status: Closed
• Assignee: nobu (Nobuyoshi Nakada)
• Target version: -
• ruby -v: ruby 1.9.1p243 (2009-07-16 revision 24175) [sparc-solaris2.8]

[docwhat (Christian Höltje)]

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In test/ruby/test_threads.rb:
test_list errors or hangs on Sparc64 Solaris.

I think the problem is that when using native threads, loop{} starves the other threads. I can "fix" running the internal eval'd code by changing the loop{} to be loop{puts 'fubar'}. But that only works if it sends to the terminal (the io causes the thread to let go). Since it's being captured by assert_in_out_err() that doesn't really work.

A work around is to change loop{} to loop{Thread.pass} but I don't know if this still tests what it is supposed to test.
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[docwhat (Christian Höltje)]

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I forgot to add that this test works in Linux 32 and 64.
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[ujihisa (Tatsuhiro Ujihisa)]

• Status changed from Open to Assigned
• Assignee set to nobu (Nobuyoshi Nakada)

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=end

[mame (Yusuke Endoh)]

• Priority changed from Normal to 3

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Hi,

Sorry for late reply. I had trouble setting up Sparc Solaris.
I managed to prepare it, but I found the test worked for me.

$ ./ruby test/ruby/test_thread.rb
Loaded suite test/ruby/test_thread
Started
................................
Finished in 16.655716 seconds.

32 tests, 85 assertions, 0 failures, 0 errors, 0 skips

Test run options: --seed 60800

$ file ruby
ruby: ELF 64-bit MSB executable SPARCV9 Version 1, dynamically linked, not stripped

$ uname -a
SunOS blade1000dev.home.yugui.jp 5.10 Generic_142900-03 sun4u sparc SUNW,Sun-Blade-1000

I guess there may be some race condition, but we can't debug
unreproducible issue. So the priority is set to Low.
Contribution (debugging the issue and writing a patch) is
wanted.

--
Yusuke Endoh [e-mail]
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[ko1 (Koichi Sasada)]

• Status changed from Assigned to Closed
• % Done changed from 0 to 100

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This issue was solved with changeset r29956.
Christian, thank you for reporting this issue.
Your contribution to Ruby is greatly appreciated.
May Ruby be with you.

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