Currently Being ModeratedJun 30, 2012 5:13 PM (in response to Kawanaut)
Something to do with an Oxford Semiconductor device, I'd guess. Try disconnecting all external storage devices and see whether it goes away. If not, boot in safe mode.
Currently Being ModeratedJul 1, 2012 4:37 AM (in response to Linc Davis)
Oh so that's what "osxsemi" means.
So I tried to disconnect my Lacie Rugged Safe drive - and the console messages went away. I restarted Mac, connected the drive again - and no messages. Weird.
Any idea if this means the drive is having issues / about to fail? Or who might the culprit be, the drive, the Mac, the OS X or just random coincidence that need no further worries?
Currently Being ModeratedJul 1, 2012 8:10 AM (in response to Kawanaut)
If it doesn't happen again, and you're not having problems with the drive, I wouldn't worry about it. Log messages aren't significant in themselves. They're only meaningful in relation to a usability problem.
Currently Being ModeratedJun 21, 2013 3:06 AM (in response to Linc Davis)
I had two disks connected over Firewire (on a Retina MacBook Pro via the 27 thunderbolt screen). This message dissappeared when I disconnected them.
I narrowed it down to being caused by my "Lacie Rugged Safe 1TB" firewire drive. Removing it was the solution. I didn't like this device anyway. You can't disable hardware encryption on it so you're forced to install their software instead of simply relying on the much simpler builtin encryption that OSX offers.