Comment 17 for bug 1300722

Just hit this again whilst browsing in firefox. The only Qt app I have running (I think) is spotify.

~/.cache/upstart/hud.log shows the offending entry as:

(hud-service:7316): GLib-GObject-CRITICAL **: g_object_unref: assertion 'G_IS_OBJECT (object)' failed
Hit DBusMenu safety valve for menu at :1.19 /com/canonical/menu/1600078
Hit DBusMenu safety valve for menu at :1.19 /com/canonical/menu/1600078
(ad infinitum)

d-feet shows 1:19 to be upowerd which appears to be doing squat:

$ sudo cat /proc/$(pidof upowerd)/stack
[<ffffffff811cd199>] poll_schedule_timeout+0x49/0x70
[<ffffffff811ce788>] do_sys_poll+0x428/0x540
[<ffffffff811ce975>] SyS_poll+0x65/0x100
[<ffffffff817266bf>] tracesys+0xe1/0xe6
[<ffffffffffffffff>] 0xffffffffffffffff