[Bug 2054761] Re: Dist upgrades from Jammy to Noble crash [Oh no! Something has gone wrong.]

[Nick Rosbrook]

** Description changed:

+ [Impact]
+ During upgrades from Jammy to Noble, systemd.postinst trys to reexec all running user managers. It does so using a feature that was not added until v250, and attempting this against a v249 daemon results in it being killed instead, which brings down all user sessions.
+ 
+ Hence, during the upgrades, the user session is killed, and the system
+ is left in a bad state.
+ 
+ [Test Plan]
+ 
+ Run an upgrade from Jammy to Noble on Ubuntu desktop. The upgrade should
+ proceed normally (or at least not have the entire session killed by
+ systemd.postinst).
+ 
+ [Where problems could occur]
+ 
+ The fix is to add a version guard against this logic in
+ systemd.postinst. If the version string was wrong or typo'd, the fix
+ would not work as expected.
+ 
+ [Original Description]
+ 
  Feb 21 21:39:12 autopkgtest gnome-shell[17945]: Settings schema 'org.gnome.mutter.wayland' does not contain a key named 'xwayland-allow-byte-swapped-clients'
  Feb 21 21:39:12 autopkgtest gnome-session-binary[17908]: WARNING: Application 'org.gnome.Shell.desktop' killed by signal 5
  Feb 21 21:39:12 autopkgtest gnome-shell[17959]: Settings schema 'org.gnome.mutter.wayland' does not contain a key named 'xwayland-allow-byte-swapped-clients'
  Feb 21 21:39:12 autopkgtest gnome-session-binary[17908]: WARNING: Application 'org.gnome.Shell.desktop' killed by signal 5
  
  https://errors.ubuntu.com/problem/bf714caff944bed915a3c4321664107c65547d1f
  https://errors.ubuntu.com/problem/db8f7e3dfc79e658b9b2aa8c596b014ce4b9f217
  https://errors.ubuntu.com/oops/af2e99fc-d101-11ee-8a58-fa163ec8ca8c

-- 
You received this bug notification because you are a member of Ubuntu
Foundations Bugs, which is subscribed to systemd in Ubuntu.
https://bugs.launchpad.net/bugs/2054761

Title:
  Dist upgrades from Jammy to Noble crash [Oh no! Something has gone
  wrong.]

Status in gnome-shell package in Ubuntu:
  Invalid
Status in mutter package in Ubuntu:
  Invalid
Status in systemd package in Ubuntu:
  Triaged

Bug description:
  [Impact]
  During upgrades from Jammy to Noble, systemd.postinst trys to reexec all running user managers. It does so using a feature that was not added until v250, and attempting this against a v249 daemon results in it being killed instead, which brings down all user sessions.

  Hence, during the upgrades, the user session is killed, and the system
  is left in a bad state.

  [Test Plan]

  Run an upgrade from Jammy to Noble on Ubuntu desktop. The upgrade
  should proceed normally (or at least not have the entire session
  killed by systemd.postinst).

  [Where problems could occur]

  The fix is to add a version guard against this logic in
  systemd.postinst. If the version string was wrong or typo'd, the fix
  would not work as expected.

  [Original Description]

  Feb 21 21:39:12 autopkgtest gnome-shell[17945]: Settings schema 'org.gnome.mutter.wayland' does not contain a key named 'xwayland-allow-byte-swapped-clients'
  Feb 21 21:39:12 autopkgtest gnome-session-binary[17908]: WARNING: Application 'org.gnome.Shell.desktop' killed by signal 5
  Feb 21 21:39:12 autopkgtest gnome-shell[17959]: Settings schema 'org.gnome.mutter.wayland' does not contain a key named 'xwayland-allow-byte-swapped-clients'
  Feb 21 21:39:12 autopkgtest gnome-session-binary[17908]: WARNING: Application 'org.gnome.Shell.desktop' killed by signal 5

  https://errors.ubuntu.com/problem/bf714caff944bed915a3c4321664107c65547d1f
  https://errors.ubuntu.com/problem/db8f7e3dfc79e658b9b2aa8c596b014ce4b9f217
  https://errors.ubuntu.com/oops/af2e99fc-d101-11ee-8a58-fa163ec8ca8c

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/2054761/+subscriptions