Bug #9366: "make -j32 check TESTS=-j32" occasionally fails on rubygems/specification

• Status: Feedback
• Assignee: hsbt (Hiroshi SHIBATA)
• Target version: -
• ruby -v: ruby 2.2.0dev (2014-01-05 trunk 44507) [x86_64-linux]
• Backport: 2.3: UNKNOWN, 2.4: UNKNOWN, 2.5: UNKNOWN
• Tags: test

[normalperson (Eric Wong)]

This only happens occasionally, maybe 1 out of 10 times during "make check",
so it's probably a bug somewhere with GC.

I'll try to reproduce without parallel tests (could take a while).
It seems to reproduce more easily on slower machine.
I initially thought it was a bug in cachelined, but I can also reproduce it with plain trunk.

/home/ew/ruby/lib/rubygems/specification.rb:748:in block in _resort!': undefined method name' for nil:NilClass (NoMethodError)
/home/ew/ruby/lib/rubygems/specification.rb:747:in sort!' /home/ew/ruby/lib/rubygems/specification.rb:747:in _resort!'
/home/ew/ruby/lib/rubygems/specification.rb:699:in _all' /home/ew/ruby/lib/rubygems/specification.rb:882:in each'
/home/ew/ruby/lib/rubygems/dependency.rb:284:in find_all' /home/ew/ruby/lib/rubygems/dependency.rb:284:in to_specs'
/home/ew/ruby/lib/rubygems/dependency.rb:309:in to_spec' /home/ew/ruby/lib/rubygems/core_ext/kernel_gem.rb:53:in gem'
/home/ew/ruby/lib/rubygems/package_task.rb:25:in <top (required)>' /home/ew/ruby/lib/rubygems/core_ext/kernel_require.rb:55:in require'
/home/ew/ruby/lib/rubygems/core_ext/kernel_require.rb:55:in require' /home/ew/ruby/test/rubygems/test_gem_package_task.rb:3:in <top (required)>'
/home/ew/ruby/lib/rubygems/core_ext/kernel_require.rb:55:in require' /home/ew/ruby/lib/rubygems/core_ext/kernel_require.rb:55:in require'
/home/ew/ruby/lib/test/unit/parallel.rb:114:in run' /home/ew/ruby/lib/test/unit/parallel.rb:183:in '

Some worker was crashed. It seems ruby interpreter's bug
or, a bug of test/unit/parallel.rb. try again without -j
option.

[hsbt (Hiroshi SHIBATA)]

• Status changed from Open to Assigned
• Assignee set to hsbt (Hiroshi SHIBATA)
• Backport changed from 1.9.3: UNKNOWN, 2.0.0: UNKNOWN, 2.1: UNKNOWN to 2.3: UNKNOWN, 2.4: UNKNOWN, 2.5: UNKNOWN

[hsbt (Hiroshi SHIBATA)]

• Status changed from Assigned to Feedback

@normalperson (Eric Wong) Do you still have this issue?

"hsbt (Hiroshi SHIBATA)" [e-mail] wrote:

@normalperson (Eric Wong) Do you still have this issue?

I no longer have a powerful workstation; so I can't reproduce it.

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Bug #9366: "make -j32 check TESTS=-j32" occasionally fails on rubygems/specification
https://bugs.ruby-lang.org/issues/9366#change-102267

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