If exporting DNG with stripe/hot-pixel removing ON the render crash. The file is located on a separate drive, and so is the output.
If I copy the file to the computer SSD it renders OK (no crash), even if output is set to external drive.
Rendering from the external drive: It usually crash within a couple of seconds (say 3%), but if I play the clip through before rendering it goes further (something to do with the stripe/hot-pixel removing?). Also if I reopen the clip and render again I get even further, and doing so repeatedly I can get the whole thing in DNGs (this might have to do with the disk caching and thus makes the reading/writing faster). I have tested several MLV files with various sizes (1-6GB)
If I turn OFF the stripe/hot-pixel removing the thing renders ok, even from external drive to external.
Other OSx 10.9.4 Macbook air mid 2012
Reason for external drive: Since my project is over 1TB I must have the whole thing at a separate drive (and I prefer to batch render the whole thing into a catalogue structure on the same drive).
Update I was apparently not running 1.2.2 before, but have retested in 1.2.2 and problem persist.