Comment 5 for bug 1415039

I should add that system randomly freezes. No info in syslog, as hard boot commences completely out of the blue:

Jan 27 18:53:24 thinkpad NetworkManager[966]: <info> (wlan0): DHCPv4 state changed renew -> renew
Jan 27 18:53:24 thinkpad NetworkManager[966]: <info> address x.x.x.x
Jan 27 18:53:24 thinkpad NetworkManager[966]: <info> prefix 24 (255.255.255.0)
Jan 27 18:53:24 thinkpad NetworkManager[966]: <info> gateway x.x.x.x
Jan 27 18:53:24 thinkpad NetworkManager[966]: <info> nameserver 'x.x.x.x'
Jan 27 18:53:24 thinkpad NetworkManager[966]: <info> nameserver 'x.x.x.x'
Jan 27 18:53:24 thinkpad NetworkManager[966]: <info> domain name 'xxx'
Jan 27 18:53:24 thinkpad NetworkManager[966]: <info> wins 'x.x.x.x'
Jan 27 18:53:24 thinkpad dbus[863]: [system] Activating service name='org.freedesktop.nm_dispatcher' (using servicehelper)
Jan 27 18:53:24 thinkpad dbus[863]: [system] Successfully activated service 'org.freedesktop.nm_dispatcher'
Jan 27 18:56:08 thinkpad rsyslogd: [origin software="rsyslogd" swVersion="7.4.4" x-pid="942" x-info="http://www.rsyslog.com"] start
Jan 27 18:56:08 thinkpad rsyslogd: rsyslogd's groupid changed to 104
Jan 27 18:56:08 thinkpad rsyslogd: rsyslogd's userid changed to 101
Jan 27 18:56:08 thinkpad kernel: [ 0.000000] Initializing cgroup subsys cpuset
Jan 27 18:56:08 thinkpad kernel: [ 0.000000] Initializing cgroup subsys cpu
Jan 27 18:56:08 thinkpad kernel: [ 0.000000] Initializing cgroup subsys cpuacct
Jan 27 18:56:08 thinkpad kernel: [ 0.000000] Linux version 3.13.0-32-generic (buildd@kissel) (gcc version 4.8.2 (Ubuntu 4.8.2-19ubuntu1) ) #57-Ubuntu SMP Tue Jul 15 03:51:08 UTC 2014 (Ubuntu 3.13.0-32.57-generic 3.13.11.4)
Jan 27 18:56:08 thinkpad kernel: [ 0.000000] Command line: BOOT_IMAGE=/boot/vmlinuz-3.13.0-32-generic.efi.signed root=UUID=94d57f89-9362-4b77-a5e4-a73e2f799edc ro quiet splash vt.handoff=7
Jan 27 18:56:08 thinkpad kernel: [ 0.000000] KERNEL supported cpus: