#0  __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:50
  [Error: raise.c was not found in source tree]
#1  0x00007f247b683535 in __GI_abort () at abort.c:79
  [Error: abort.c was not found in source tree]
#2  0x00007f247b6ea726 in __libc_message (action=action@entry=do_abort, fmt=fmt@entry=0x7f247b810952 "%s\n") at ../sysdeps/posix/libc_fatal.c:181
  [Error: libc_fatal.c was not found in source tree]
#3  0x00007f247b6f159a in malloc_printerr (str=str@entry=0x7f247b80ea9b "free(): invalid pointer") at malloc.c:5352
  [Error: malloc.c was not found in source tree]
#4  0x00007f247b6f33cc in _int_free (av=<optimized out>, p=<optimized out>, have_lock=<optimized out>) at malloc.c:4181
  [Error: malloc.c was not found in source tree]
#5  0x0000564a043b6eb3 in free_reason_data (user_data=0x7f246c0014e0) at ../plugins/print-notifications/gsd-print-notifications-manager.c:243
  238:                                                    data->notification_close_id))
  239:                         g_signal_handler_disconnect (data->notification, data->notification_close_id);
  240: 
  241:                 g_object_unref (data->notification);
  242: 
  243:                 g_free (data->printer_name);
  244:                 g_free (data->reason);
  245: 
  246:                 g_free (data);
  247:         }
  248: }
#6  0x00007f247b89fcad in g_list_foreach (list=<optimized out>, list@entry=0x564a05c2bd80, func=0x564a043b6e90 <free_reason_data>, user_data=user_data@entry=0x0) at ../../../glib/glist.c:1013
  [Error: glist.c was not found in source tree]
#7  0x00007f247b89fcdb in g_list_free_full (list=0x564a05c2bd80, free_func=<optimized out>) at ../../../glib/glist.c:223
  [Error: glist.c was not found in source tree]
#8  0x0000564a043b9890 in gsd_print_notifications_manager_stop (manager=manager@entry=0x564a05c2e090) at ../plugins/print-notifications/gsd-print-notifications-manager.c:1637
  1632:                         }
  1633: 
  1634:                         notify_notification_close (reason_data->notification, NULL);
  1635:                 }
  1636:         }
  1637:         g_list_free_full (manager->priv->active_notifications, free_reason_data);
  1638: 
  1639:         for (tmp = manager->priv->held_jobs; tmp; tmp = g_list_next (tmp)) {
  1640:                 job = (HeldJob *) tmp->data;
  1641:                 g_source_remove (job->timeout_id);
  1642:         }
#9  0x0000564a043b9aba in gsd_print_notifications_manager_finalize (object=0x564a05c2e090) at ../plugins/print-notifications/gsd-print-notifications-manager.c:1679
  1674: 
  1675:         manager = GSD_PRINT_NOTIFICATIONS_MANAGER (object);
  1676: 
  1677:         g_return_if_fail (manager->priv != NULL);
  1678: 
  1679:         gsd_print_notifications_manager_stop (manager);
  1680: 
  1681:         if (manager->priv->start_idle_id != 0)
  1682:                 g_source_remove (manager->priv->start_idle_id);
  1683: 
  1684:         G_OBJECT_CLASS (gsd_print_notifications_manager_parent_class)->finalize (object);
#10 0x00007f247b98effd in g_object_unref (_object=<optimized out>) at ../../../gobject/gobject.c:3346
  [Error: gobject.c was not found in source tree]
#11 g_object_unref (_object=0x564a05c2e090) at ../../../gobject/gobject.c:3238
  [Error: gobject.c was not found in source tree]
#12 0x0000564a043b6b26 in main (argc=<optimized out>, argv=<optimized out>) at ../plugins/common/daemon-skeleton.h:250
  245: 
  246:         g_main_loop_run (loop);
  247: 
  248: 	if (should_run ())
  249: 		STOP (manager);
  250:         g_object_unref (manager);
  251: 
  252:         return 0;
  253: }