Comment 85 for bug 330824

Also to add, I can't confirm Saïvann Carignan's experience that it happens on mostly full filesystems, since I have 150gb free on a 500gb partition and can reproduce easily.

I feel personally that this is massive showstopper for ext4 and shouldn't be an option in the final release of jaunty. I think it's priority is worthy of more than "medium" too.