[Bug 1556488] Re: systemd crashed with SIGABRT when shutting down

[Apport retracing service]

*** This bug is a duplicate of bug 1547851 ***
    https://bugs.launchpad.net/bugs/1547851

Thank you for taking the time to report this crash and helping to make
this software better.  This particular crash has already been reported
and is a duplicate of bug #1547851, so is being marked as such.  Please
look at the other bug report to see if there is any missing information
that you can provide, or to see if there is a workaround for the bug.
Additionally, any further discussion regarding the bug should occur in
the other report.  Please continue to report any other bugs you may
find.

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** This bug has been marked a duplicate of private bug 1547851

** Information type changed from Private to Public

** Tags removed: need-amd64-retrace

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https://bugs.launchpad.net/bugs/1556488

Title:
  systemd crashed with SIGABRT when shutting down

Status in systemd package in Ubuntu:
  New

Bug description:
  Installed 16.04 daily build on my Dell XPS 12 (9250), system up to date when this happened.
  When my new  SATA to USB Type-C (Thunderbolt) adapter is plugged, shutting down the computer freezes on the Ubuntu... splash.
  Even if I boot with everything plugged in it still happens.
  Overall only the USB Type C (Thunderbolt) to USB3 adapter worked for me, but only if booted while plugged in, hot plugin not working.

  ProblemType: Crash
  DistroRelease: Ubuntu 16.04
  Package: systemd 229-2ubuntu1 [modified: usr/share/dbus-1/system-services/org.freedesktop.systemd1.service]
  ProcVersionSignature: Ubuntu 4.4.0-12.28-generic 4.4.4
  Uname: Linux 4.4.0-12-generic x86_64
  ApportVersion: 2.20-0ubuntu3
  Architecture: amd64
  Date: Sat Mar 12 19:38:37 2016
  ExecutablePath: /lib/systemd/systemd
  InstallationDate: Installed on 2016-02-27 (14 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20160226)
  MachineType: Dell Inc. XPS 12 9250
  ProcCmdline: /lib/systemd/systemd --user
  ProcEnviron:
   LANG=en_GB.UTF-8
   LANGUAGE=en_GB:en
   PATH=(custom, no user)
   SHELL=/bin/bash
   XDG_RUNTIME_DIR=<set>
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-12-generic.efi.signed root=UUID=5dd0bb11-5f5b-448e-886f-13658e54059f ro quiet splash vt.handoff=7
  Signal: 6
  SourcePackage: systemd
  StacktraceTop:
   ?? ()
   ?? ()
   ?? ()
   ?? ()
   ?? ()
  SystemdDelta:
   [EXTENDED]   /lib/systemd/system/systemd-timesyncd.service → /lib/systemd/system/systemd-timesyncd.service.d/disable-with-time-daemon.conf
   [EXTENDED]   /lib/systemd/system/rc-local.service → /lib/systemd/system/rc-local.service.d/debian.conf
   [EXTENDED]   /etc/systemd/system/display-manager.service → /lib/systemd/system/display-manager.service.d/xdiagnose.conf
   
   3 overridden configuration files found.
  SystemdFailedUnits: Error: command ['systemctl', 'status', '--full', 'Error:'] failed with exit code 1: Failed to get properties: Failed to activate service 'org.freedesktop.systemd1': timed out
  Title: systemd crashed with SIGABRT
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
  dmi.bios.date: 01/20/2016
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 01.01.06
  dmi.board.name: 0XYRGN
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A00
  dmi.chassis.type: 8
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: dmi:bvnDellInc.:bvr01.01.06:bd01/20/2016:svnDellInc.:pnXPS129250:pvr:rvnDellInc.:rn0XYRGN:rvrA00:cvnDellInc.:ct8:cvr:
  dmi.product.name: XPS 12 9250
  dmi.sys.vendor: Dell Inc.

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