Comment 34 for bug 426930

Here's the error message Michael got in his syncdaemon-exceptions.log, unescaped:

exceptions.KeyError: Unhandled Event in INotify: <Event mask=0x4000 maskname=IN_Q_OVERFLOW >

IN_Q_OVERFLOW is emitted when the appropriate queue is full and can't take more events. If this event occurs frequently you should read events faster and eventually increase the limit for queues. This limit can be read and changed by reading/changing the appropriate procfs file (/proc/sys/fs/inotify/max_queued_events) [1]

So it looks like syncdaemon on Michael's machine has some issue with inotify, this needs to be investigated further.
Syncdaemon on Mike's machine is stuck in WORKING_ON_METADATA_WITH_CONTQ.

These bugs don't have a defined reason at the moment so it will take some time to reproduce them.

[1] http://inotify.aiken.cz/?section=inotify&page=faq&lang=en