ERROR: apport (pid 1237) Mon Sep 16 11:29:03 2013: called for pid 1084, signal 11, core limit 0
ERROR: apport (pid 1237) Mon Sep 16 11:29:03 2013: executable: /usr/sbin/unity-system-compositor (command line "/usr/sbin/unity-system-compositor --from-dm-fd 8 --to-dm-fd 13 --vt 7")
ERROR: apport (pid 1237) Mon Sep 16 11:29:03 2013: is_closing_session(): no DBUS_SESSION_BUS_ADDRESS in environment
ERROR: apport (pid 1237) Mon Sep 16 11:29:03 2013: apport: report /var/crash/_usr_sbin_unity-system-compositor.0.crash already exists and unseen, doing nothing to avoid disk usage DoS
ERROR: apport (pid 1340) Mon Sep 16 12:15:00 2013: called for pid 1137, signal 11, core limit 0
ERROR: apport (pid 1340) Mon Sep 16 12:15:00 2013: executable: /usr/sbin/unity-system-compositor (command line "/usr/sbin/unity-system-compositor --from-dm-fd 9 --to-dm-fd 13 --vt 7")
ERROR: apport (pid 1340) Mon Sep 16 12:15:01 2013: is_closing_session(): no DBUS_SESSION_BUS_ADDRESS in environment
ERROR: apport (pid 1340) Mon Sep 16 12:15:01 2013: apport: report /var/crash/_usr_sbin_unity-system-compositor.0.crash already exists and unseen, doing nothing to avoid disk usage DoS