systemd-logind crashed at shutdown segment of reboot process with signal 11/segv

Sometimes when I reboot systemd-logind.service crashes on the shutdown side of the reboot. It exits with a status=11/segv. This occurs both using the GUI reboot function or the CLI reboot command.

{lsb_release -rd}
Description: Ubuntu Wily Werewolf (development branch)
Release: 15.10

{apt-cache policy systemd}
systemd:
  Installed: 225-1ubuntu4
  Candidate: 225-1ubuntu4
  Version table:
 *** 225-1ubuntu4 0
        500 http://us.archive.ubuntu.com/ubuntu/ wily/main i386 Packages
        100 /var/lib/dpkg/status

ProblemType: Crash
DistroRelease: Ubuntu 15.10
Package: systemd 225-1ubuntu4
ProcVersionSignature: Ubuntu 3.19.0-28.30-generic 3.19.8-ckt5
Uname: Linux 3.19.0-28-generic i686
NonfreeKernelModules: nvidia
ApportVersion: 2.19-0ubuntu1
Architecture: i386
CrashCounter: 1
Date: Tue Sep 29 12:13:23 2015
ExecutablePath: /lib/systemd/systemd-logind
InstallationDate: Installed on 2015-09-16 (13 days ago)
InstallationMedia: Lubuntu 15.04 "Vivid Vervet" - Release i386 (20150422)
Lsusb:
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
 Bus 002 Device 002: ID 046d:c51b Logitech, Inc. V220 Cordless Optical Mouse for Notebooks
 Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
MachineType: Hewlett-Packard Presario V6000 (RG298UA#ABA)
ProcCmdline: /lib/systemd/systemd-logind
ProcEnviron:
 LANG=en_US.UTF-8
 PATH=(custom, no user)
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.19.0-28-generic root=/dev/mapper/laptop1-root ro quiet splash
SegvAnalysis: Skipped: missing required field "Disassembly"
Signal: 11
SourcePackage: systemd
UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev'
UpgradeStatus: Upgraded to wily on 2015-09-16 (13 days ago)
UserGroups:

dmi.bios.date: 10/25/2006
dmi.bios.vendor: Hewlett-Packard
dmi.bios.version: F.1A
dmi.board.name: 30B7
dmi.board.vendor: Quanta
dmi.board.version: 65.21
dmi.chassis.type: 10
dmi.chassis.vendor: Quanta
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnHewlett-Packard:bvrF.1A:bd10/25/2006:svnHewlett-Packard:pnPresarioV6000(RG298UA#ABA):pvrRev1:rvnQuanta:rn30B7:rvr65.21:cvnQuanta:ct10:cvrN/A:
dmi.product.name: Presario V6000 (RG298UA#ABA)
dmi.product.version: Rev 1
dmi.sys.vendor: Hewlett-Packard