[Bug 1750403] Re: Live Session - Increased memory usage with preinstalled snap (fails to start with - gnome-session timeout)

Tue Feb 20 21:32:49 UTC 2018

During boot there are these lines

[...]
Feb 20 15:57:36 ubuntu snapd[982]: 2018/02/20 15:57:36.281638 daemon.go:306: started snapd/2.29.4.2+18.04 (series 16; classic) ubuntu/18.04 (amd64) linux/4.13.0-32-generic.
[...]
Feb 20 15:59:26 ubuntu snapd[1557]: 2018/02/20 15:59:26.013619 daemon.go:306: started snapd/2.30 (series 16; classic) ubuntu/18.04 (amd64) linux/4.13.0-32-generic.
[...]
Feb 20 16:01:43 ubuntu gnome-shell[1356]: GNOME Shell started at Tue Feb 20 2018 16:00:15 GMT+0000 (UTC)
[...]

So apparently 2.29 starts, something happens (update or init of snapd?),
then it restarts with 2.30, then gnome-shell starts.

The journal is already attached in comment #2

To reproduce, boot bionic in a VM.

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Title:
  Live Session - Increased memory usage with preinstalled snap (fails to
  start with - gnome-session timeout)

Status in casper package in Ubuntu:
  Confirmed

Bug description:
  Ubuntu Desktop Bionic 20180219 on VM

  The session fails to start. There is the following message in the
  journal:

  Feb 19 16:01:54 ubuntu gnome-session[1469]: gnome-session-binary[1469]: WARNING: Application 'org.gnome.Shell.desktop' failed to register before timeout
  Feb 19 16:01:54 ubuntu gnome-session-binary[1469]: WARNING: Application 'org.gnome.Shell.desktop' failed to register before timeout
  Feb 19 16:01:54 ubuntu gnome-session-binary[1469]: Unrecoverable failure in required component org.gnome.Shell.desktop
  Feb 19 16:01:54 ubuntu gnome-session[1469]: gnome-session-binary[1469]: CRITICAL: We failed, but the fail whale is dead. Sorry....
  Feb 19 16:01:54 ubuntu gnome-session-binary[1469]: CRITICAL: We failed, but the fail whale is dead. Sorry....
  Feb 19 16:01:54 ubuntu at-spi-bus-launcher[1582]: XIO:  fatal IO error 11 (Resource temporarily unavailable) on X server ":0"
  Feb 19 16:01:54 ubuntu at-spi-bus-launcher[1582]:       after 21 requests (21 known processed) with 0 events remaining.

  On hardware boot time is slow but there is no timeout.

  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: gnome-session (not installed)
  ProcVersionSignature: Ubuntu 4.13.0-32.35-generic 4.13.13
  Uname: Linux 4.13.0-32-generic x86_64
  ApportVersion: 2.20.8-0ubuntu10
  Architecture: amd64
  CurrentDesktop: ubuntu:GNOME
  Date: Mon Feb 19 17:04:42 2018
  InstallationDate: Installed on 2013-09-03 (1629 days ago)
  InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Alpha amd64 (20130902)
  ProcEnviron:
   TERM=screen-256color
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=fr_FR.UTF-8
   SHELL=/bin/bash
  SourcePackage: gnome-session
  UpgradeStatus: Upgraded to bionic on 2018-01-26 (24 days ago)

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