[Bug 1926355] Re: Snap applications segfault with new core20 (rev: 1015+)

[Steve Langasek]

Hello Łukasz, or anyone else affected,

Accepted glibc into focal-proposed. The package will build now and be
available at https://launchpad.net/ubuntu/+source/glibc/2.31-0ubuntu9.4
in a few hours, and then in the -proposed repository.

Please help us by testing this new package.  See
https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how
to enable and use -proposed.  Your feedback will aid us getting this
update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug,
mentioning the version of the package you tested, what testing has been
performed on the package and change the tag from verification-needed-
focal to verification-done-focal. If it does not fix the bug for you,
please add a comment stating that, and change the tag to verification-
failed-focal. In either case, without details of your testing we will
not be able to proceed.

Further information regarding the verification process can be found at
https://wiki.ubuntu.com/QATeam/PerformingSRUVerification .  Thank you in
advance for helping!

N.B. The updated package will be released to -updates after the bug(s)
fixed by this package have been verified and the package has been in
-proposed for a minimum of 7 days.

** Changed in: glibc (Ubuntu Focal)
       Status: In Progress => Fix Committed

** Tags added: verification-needed verification-needed-focal

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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.

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