[Bug 1926355] Autopkgtest regression report (glibc/2.31-0ubuntu9.5)

[Ubuntu SRU Bot]

All autopkgtests for the newly accepted glibc (2.31-0ubuntu9.5) for focal have finished running.
The following regressions have been reported in tests triggered by the package:

garli/2.1-3build1 (armhf)
fpc/3.0.4+dfsg-23 (armhf)
lazarus/2.0.6+dfsg-3 (armhf)
libuv1/1.34.2-1ubuntu1.3 (i386)
ikiwiki-hosting/0.20180719-2 (armhf)
rtags/2.37-1 (amd64)
mercurial/5.3.1-1ubuntu1 (amd64, ppc64el)
foo2zjs/20171202dfsg0-4 (armhf)
frameworkintegration/5.68.0-0ubuntu1 (armhf)
hilive/2.0a-3build2 (arm64)
ruby-libxml/3.1.0-2 (s390x)
plasma-framework/5.68.0-0ubuntu1 (armhf)
feersum/1.407-2 (s390x)
r-bioc-delayedarray/0.12.2+dfsg-1 (armhf)
php-luasandbox/3.0.3-2build2 (ppc64el)
snapd-glib/1.58-0ubuntu0.20.04.0 (armhf)
bolt/0.8-4ubuntu1 (ppc64el)
threadweaver/5.68.0-0ubuntu1 (armhf)
python3.8/3.8.10-0ubuntu1~20.04.2 (amd64)


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!

-- 
You received this bug notification because you are a member of Ubuntu
Foundations Bugs, which is subscribed to glibc in Ubuntu.
https://bugs.launchpad.net/bugs/1926355

Title:
  Snap applications segfault with new core20 (rev: 1015+)

Status in snap-core20:
  New
Status in Snapcraft:
  Fix Released
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
Status in glibc source package in Hirsute:
  Fix Released

Bug description:
  [Impact]

  * Core20 snap built with updated glibc crashes snaps also bundling
  glibc.

  [Test Plan]

  * Build core20 snap with glibc in focal-proposed. Test a snap (which
  is not core20) bundling glibc:

  TODO: install locally built core20? 
  snap install test-snapd-rsync-core20 --edge
  snap run test-snapd-rsync-core20.rsync

  [Where problems could occur]

  * The previous glibc update (2.31-0ubuntu9.3) had a fix (LP: #1914044)
  that broke snaps bundling a previous version of glibc
  (2.31-0ubuntu9.2) due to them being incompatible. The fix of LP:
  #1914044 is reverted and 2.31-0ubuntu9.4 does not include changes
  incompatible with 2.31-0ubuntu9.2, thus the crash should not occur. No
  problems are expected.

  [Original Bug Text]
  It seems that with our new core20 in the beta channel all snaps seem to be segfaulting. We recently had a new glibc landed in focal-updates - might be related.

To manage notifications about this bug go to:
https://bugs.launchpad.net/snap-core20/+bug/1926355/+subscriptions