[DRE-maint] Bug#983602: ruby2.7: i386 qemu autopkgtest failure TestFiber#test_fork_from_fiber [/tmp/autopkgtest.tQuubZ/autopkgtest_tmp/test/ruby/test_fiber.rb:330]:

[Ryutaroh Matsumoto]

Source: ruby2.7
Version: 2.7.2-4
Severity: important
Tags: sid bullseye

Dear Maintainer,

autopkgtest -U -B -u debci ruby2.7 -- qemu fails on a testbed made by
debci setup -f -s sid -b qemu -a i386

At the end of run-all-stdout I found:

  1) Failure:
TestFiber#test_fork_from_fiber [/tmp/autopkgtest.tQuubZ/autopkgtest_tmp/test/ruby/test_fiber.rb:330]:
[ruby-core:41456].
<0> expected but was
<1>.

Finished tests in 322.420721s, 53.4922 tests/s, 8322.9762 assertions/s.
17247 tests, 2683500 assertions, 1 failures, 0 errors, 37 skips

ruby -v: ruby 2.7.2p137 (2020-10-01 revision 5445e04352) [i386-linux-gnu]

I am aware that the same version passes the test on ci.debian.net, which
uses the lxc testbed, not qemu.

The full log is attached.

Best regards, Ryutaroh Matsumoto

-- System Information:
Debian Release: bullseye/sid
  APT prefers testing
  APT policy: (990, 'testing'), (500, 'unstable'), (1, 'experimental')
Architecture: amd64 (x86_64)

Kernel: Linux 5.9.16-preempt (SMP w/12 CPU threads; PREEMPT)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE=en_US:en
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled
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