I know the SQL is prepared for every known bad situation, but it still fails.
I've seen lot of situations where the package should not fail and it does. Here is another story about space : A DBCC that hungs or stalls because there is not enough space on disk. Error log reports "...waiting for FCB_Replica...".
The database is 150GB and the free space is about 70GB. When I released some to some 120 GB, it runs smootly.
I've read many msdn blogs, articles, none realy gave a real solution, releasing space gave it.
Well this comment is out of the topic but this confirms that all sistems fails. I still like the package and is very reliable but I'm confident that all systems fails sometimes with unexpected issues.