[Bug 1869364] Autopkgtest regression report (glibc/2.31-0ubuntu9.1)

[Ubuntu SRU Bot]

All autopkgtests for the newly accepted glibc (2.31-0ubuntu9.1) for focal have finished running.
The following regressions have been reported in tests triggered by the package:

prometheus-blackbox-exporter/0.13.0+ds-2 (armhf, amd64, ppc64el, s390x, arm64)
prometheus-pushgateway/1.0.0+ds-1 (armhf, amd64, ppc64el, s390x, arm64)
systemd/245.4-4ubuntu3.2 (s390x, amd64, ppc64el)
gfs2-utils/unknown (amd64)
hugo/0.68.3-1 (armhf, amd64, ppc64el, s390x, arm64)
grubzfs-testsuite/0.4.10 (amd64)
glibc/2.31-0ubuntu9.1 (armhf)
badger/2.0.1-3 (armhf, amd64, ppc64el, s390x, arm64)
resource-agents/1:4.5.0-2ubuntu2 (armhf)
etcd/3.2.26+dfsg-6 (amd64, ppc64el)
postgresql-multicorn/1.3.4-31-g9ff7875-3 (armhf, amd64, ppc64el, s390x)
gfs2-utils/3.2.0-3 (ppc64el, s390x, arm64)
scipy/1.3.3-3build1 (ppc64el)


Please visit the excuses page listed below and investigate the failures, proceeding afterwards as per the StableReleaseUpdates policy regarding autopkgtest regressions [1].

https://people.canonical.com/~ubuntu-archive/proposed-
migration/focal/update_excuses.html#glibc

[1] https://wiki.ubuntu.com/StableReleaseUpdates#Autopkgtest_Regressions

Thank you!

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https://bugs.launchpad.net/bugs/1869364

Title:
  glibc pwd/test-getpw test failures in autopkgtest

Status in glibc package in Ubuntu:
  Fix Released
Status in glibc source package in Focal:
  Fix Committed
Status in glibc source package in Groovy:
  Fix Released

Bug description:
  [Impact]

  pwd/test-getpw test fails in autopkgtest
  Fixing this makes the arm64 and armhf autopkgtests usable again for the lifetime of the 20.04 LTS release.

  [Test Case]

  Observe autopkgetest tests passing, including pwd/test-getpw being
  marked as XFAIL.

  [Regression Potential]

  The fix is ignoring a test failure due to the problems explained in
  the bug comments. The fix does not affect run-time behaviour.

  [Original Bug Text]

  I started seeing this in the testing for 5.4.0-20. Only happening on
  arm64/armhf.

  ----------
  FAIL: pwd/tst-getpw
  original exit status 223
  PASS: NULL buffer returns -1 and sets errno to EINVAL.
  PASS: Read a password line given a uid.
  FAIL: Did not find even one invalid uid.
  ----------

  https://objectstorage.prodstack4-5.canonical.com/v1/AUTH_77e2ada1e7a84929a74ba3b87153c0ac/autopkgtest-focal/focal/arm64/g/glibc/20200326_165114_2fcf9@/log.gz
  https://objectstorage.prodstack4-5.canonical.com/v1/AUTH_77e2ada1e7a84929a74ba3b87153c0ac/autopkgtest-focal/focal/armhf/g/glibc/20200326_173356_3378d@/log.gz

  I've unsuccessfully tried to reproduce this on an arm64 host (by
  running this test case standalone, not the full test suite), so
  possibly there's something about the autopkgtest environment. This
  also happens with the 5.4.0-18 from focal-release, so it does not
  appear to be a regression in the kernel.

  https://objectstorage.prodstack4-5.canonical.com/v1/AUTH_77e2ada1e7a84929a74ba3b87153c0ac
  /autopkgtest-focal/focal/arm64/g/glibc/20200326_224201_5fd33@/log.gz

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