Bug #12500: TestProcess#test_aspawn_too_long_path fails on mips with "argument too big"

• Status: Open
• Priority: Normal
• Assignee: -
• Target version: -
• ruby -v: ruby 2.3.1p112 (2016-04-26) [mips-linux-gnu]
• Backport: 2.1: UNKNOWN, 2.2: UNKNOWN, 2.3: REQUIRED

[zeha (Christian Hofstaedtler)]

Recently in Debian we've enabled make check and this is one of the test failures we get for ruby2.3, on mips:

TestProcess#test_aspawn_too_long_path [/«PKGBUILDDIR»/test/ruby/test_process.rb:1602]:
[ruby-core:34833] #7904 [ruby-core:52628] #11613.
[Errno::ENOENT, Errno::E2BIG] exception expected, not.
Class: <ArgumentError>
Message: <"argument too big">
---Backtrace---
/«PKGBUILDDIR»/test/ruby/test_process.rb:1619:in `*'
/«PKGBUILDDIR»/test/ruby/test_process.rb:1619:in `block (3 levels) in assert_fail_too_long_path'
/«PKGBUILDDIR»/test/ruby/test_process.rb:1616:in `loop'
/«PKGBUILDDIR»/test/ruby/test_process.rb:1616:in `block (2 levels) in assert_fail_too_long_path'
/«PKGBUILDDIR»/test/lib/test/unit/assertions.rb:74:in `assert_raise'
/«PKGBUILDDIR»/test/ruby/test_process.rb:1614:in `block in assert_fail_too_long_path'
/«PKGBUILDDIR»/test/lib/envutil.rb:159:in `suppress_warning'
/«PKGBUILDDIR»/test/ruby/test_process.rb:1613:in `assert_fail_too_long_path'
/«PKGBUILDDIR»/test/ruby/test_process.rb:1602:in `test_aspawn_too_long_path'
/«PKGBUILDDIR»/test/lib/test/unit.rb:1018:in `run_test'
---------------

I think is caused by some array or string mangling code used by Process.spawn, but can't be sure.

Please also backport any fixes for this to 2.3.