@JBB
Cool you did it. And the 5000000 is the loop limit - it does not correspond to anything. I just tried some values and decided that this one gives enough time for my disks - you may try lowering it and re-testing on your hardware.

@JKD
As I wrote before - you can't screw it permanently and the restoration procedure is quite straightforward. And BTW - did the fix finally worked for you?