[Bug 1746874] Re: gnome-shell and Xwayland sometimes leave ~/core files (not crash files)

[Daniel van Vugt]

I wonder - is this the default kernel behaviour if the pipe command
fails?

/proc/sys/kernel/core_pattern:|/usr/share/apport/apport %p %s %c %d %P

** Summary changed:

- gnome-shell and Xwayland sometimes leave ~/core files (not crash files)
+ gnome-shell and Xwayland sometimes leave $HOME/core files (should be crash files)

** Description changed:

- gnome-shell and Xwayland sometimes leave ~/core files (not crash files)
+ 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)

** Summary changed:

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

** Also affects: linux (Ubuntu)
   Importance: Undecided
       Status: New

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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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