[Bug 1931088] Re: boot-and-services tests fails in impish on armhf (248.3)

[Christian Ehrhardt ]

As I said I tried to recreate this, but it worked.
It was fine under Focal/5.4.0-53-generic Host with the Impish-armhf container.
Upgrading the host to impish it Impish/5.11.0-16-generic still works fine.

It seems it only fails in autopkgtest infrastructure, not sure why yet
:-/

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Title:
  boot-and-services tests fails in impish on armhf (248.3)

Status in dnsmasq package in Ubuntu:
  Incomplete
Status in gdm3 package in Ubuntu:
  Incomplete
Status in glibc package in Ubuntu:
  Incomplete
Status in systemd package in Ubuntu:
  New

Bug description:
  Systemd 248.3-1ubuntu1 is rather new, but had 5 successful tests on armhf
  before now slipping into a bad mode.

  Now it seems all tests failed in boot-and-services by hanging until killed by
  VirtSubproc.Timeout of autokgtest.

  The last [1] test log has a bit more, it shows a python stack overflow
  ```
     VirtSubproc.Timeout
     Fatal Python error: Cannot recover from stack overflow.
     Python runtime state: initialized

     Current thread 0x00007f108e840740 (most recent call first):
       File "/home/ubuntu/autopkgtest/lib/adtlog.py", line 36 in log
       File "/home/ubuntu/autopkgtest/lib/adtlog.py", line 86 in debug
       File "/home/ubuntu/autopkgtest/lib/adt_testbed.py", line 472 in send
       File "/home/ubuntu/autopkgtest/lib/adt_testbed.py", line 521 in command
  ```

  I have seen a bunch of packages including even gdm3 and glibc being blocked by
  that so I wanted to at least track down the issue until we can put it on
  someones task list to resolve.
  No one replied to my pings yet, but maybe that means someone is already
  debugging this and had enabled some debugging?

  By running the same in armhf container on arm64 VM on canonistack I've seen
  no issues. The test worked fine and had no hang/issues.

  root at systemd-test-fail:~/systemd-248.3# ./debian/tests/boot-and-services
  lxc
  1
  test_profile (__main__.AppArmorTest)
  AppArmor confined unit ... skipped 'fails on armhf testbeds, see LP: #1842352'
  test_help (__main__.CLITest)
  --help works and succeeds ... ok
  test_invalid_option (__main__.CLITest)
  Calling with invalid option fails ... ok
  test_version (__main__.CLITest)
  --version works and succeeds ... ok
  test_cpushares (__main__.CgroupsTest)
  service with CPUShares ... ok
  test_simple (__main__.CgroupsTest)
  simple service ... ok
  test_bash_crash (__main__.CoredumpTest) ... skipped 'systemd-coredump does not work in containers'
  test_log_for_service (__main__.JournalTest) ... ok
  test_no_options (__main__.JournalTest) ... ok
  test_boot (__main__.NspawnTest) ... skipped 'nspawn does not work in most containers'
  test_service (__main__.NspawnTest) ... skipped 'nspawn does not work in most containers'
  test_failing (__main__.SeccompTest) ... ok
  test_0_init (__main__.ServicesTest)
  Verify that init is systemd ... ok
  test_cron (__main__.ServicesTest) ... ok
  test_dbus (__main__.ServicesTest) ... ok
  test_gdm3 (__main__.ServicesTest) ... skipped 'gdm3 not found'
  test_logind (__main__.ServicesTest) ... ok
  test_network_manager (__main__.ServicesTest) ... ok
  test_no_failed (__main__.ServicesTest)
  No failed units ... ok
  test_rsyslog (__main__.ServicesTest) ... ok
  test_tmp_cleanup (__main__.ServicesTest) ... ok
  test_tmp_mount (__main__.ServicesTest) ... ok
  test_udev (__main__.ServicesTest) ... skipped 'udev does not work in containers'
  ----------------------------------------------------------------------
  Ran 23 tests in 5.589s
  OK (skipped=6)

  So I can not reproduce this on canonistack, but it blocks autopkgtests of
  various packages pretty reproducibly :-/

  [1]: https://autopkgtest.ubuntu.com/results/autopkgtest-
  impish/impish/armhf/s/systemd/20210604_081326_d4319@/log.gz

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