Time machine stuck on cleaning up/ Error -47 I have been using time machine with the same disk for a year or so and until now it was fine. But since yesterday, it gets stuck at "cleaning up" and if I say "stop backing up" nothing happens. I tried repairing the disk with the disk utility and it seemed to be ok. I also tried a "full reset" (http://pondini.org/TM/A4.html), to no avail. Time machine buddy shows me the following: 

Starting standard backup
Backing up to: /Volumes/LaCie 1/Backups.backupdb
Event store UUIDs don't match for volume: Macintosh HD
Node requires deep traversal:/ reason:must scan subdirs|new event db|
No pre-backup thinning needed: 71.44 GB requested (including padding), 243.73 GB available
Stopping backup.
Error writing to backup log.  NSFileHandleOperationException:*** -[NSConcreteFileHandle writeData:]: Resource busy
Error: (-47) SrcErr:NO Copying /Users/blub/Downloads/Diablo-III-8370-enGB-Installer/Installer Tome 3.MPQE.part to /Volumes/LaCie 1/Backups.backupdb/aliscafo/2012-06-05-010535.inProgress/53345109-BD64-4FAB-990C-772890BF111A/Macintosh HD/Users/blub/Downloads/Diablo-III-8370-enGB-Installer
Error writing to backup log.  NSFileHandleOperationException:*** -[NSConcreteFileHandle writeData:]: Resource busy
Error writing to backup log.  NSFileHandleOperationException:*** -[NSConcreteFileHandle writeData:]: Resource busy
Copied 13200 files (12.1 GB) from volume Macintosh HD.
Error writing to backup log.  NSFileHandleOperationException:*** -[NSConcreteFileHandle writeData:]: Resource busy
Copy stage failed with error:11
Error writing to backup log.  NSFileHandleOperationException:*** -[NSConcreteFileHandle writeData:]: Resource busy
Error writing to backup log.  NSFileHandleOperationException:*** -[NSConcreteFileHandle writeData:]: Resource busy
Error writing to backup log.  NSFileHandleOperationException:*** -[NSConcreteFileHandle writeData:]: Resource busy
Error: (-47) Creating directory aliscafo 2
Error: (-47) Creating directory aliscafo 3
Error: (-47) Creating directory aliscafo 4
Error: (-47) Creating directory aliscafo 5
Error: (-47) Creating directory aliscafo 6
Error: (-47) Creating directory aliscafo 7


and so on... Does anyone know what Error: (-47) means? What can I do to fix this?
I had the same problem after I got a new iMac, did a transfer from Snow Leopard to Lion and it just go stuck. I did everything but to no avail.

If you are on the same boat as me, I fixed it upgrading to Mountain Lion.