[Bug 1746874] Missing required logs.

[Ubuntu Kernel Bot]

This bug is missing log files that will aid in diagnosing the problem.
While running an Ubuntu kernel (not a mainline or third-party kernel)
please enter the following command in a terminal window:

apport-collect 1746874

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable
to run this command, please add a comment stating that fact and change
the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the
Ubuntu Kernel Team.

** Changed in: linux (Ubuntu)
       Status: New => Incomplete

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https://bugs.launchpad.net/bugs/1746874

Title:
  gnome-shell and Xwayland sometimes leave $HOME/core files (should be
  /var/crash files)

Status in apport package in Ubuntu:
  New
Status in gnome-shell package in Ubuntu:
  New
Status in linux package in Ubuntu:
  Incomplete
Status in mutter package in Ubuntu:
  New

Bug description:
  gnome-shell and Xwayland sometimes leave $HOME/core files (should be
  /var/crash files).

  This is despite:

  $ grep . /proc/sys/kernel/core_*
  /proc/sys/kernel/core_pattern:|/usr/share/apport/apport %p %s %c %d %P
  /proc/sys/kernel/core_pipe_limit:0
  /proc/sys/kernel/core_uses_pid:0

  So really there are two problems:

  1. ~/core files are created but no /var/crash/ files
  2. Because they all have the same name (core_uses_pid == 0), when gnome-shell crashes as a result of an Xwayland crash, you can only get the core from one of them at most.

  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: gnome-shell 3.26.2-0ubuntu2
  ProcVersionSignature: Ubuntu 4.13.0-25.29-generic 4.13.13
  Uname: Linux 4.13.0-25-generic x86_64
  ApportVersion: 2.20.8-0ubuntu7
  Architecture: amd64
  Date: Fri Feb  2 15:13:52 2018
  DisplayManager:

  InstallationDate: Installed on 2017-12-12 (52 days ago)
  InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Alpha amd64 (20171211)
  SourcePackage: gnome-shell
  UpgradeStatus: No upgrade log present (probably fresh install)

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