I wrote up a bit longer explanation of the failure modes (which depend on your journaling mode) in this comment: https://news.ycombinator.com/item?id=31387447 h

I wrote up a bit longer explanation of the failure modes (which depend on your journaling mode) in this comment: https://news.ycombinator.com/item?id=31387447 https://news.ycombinator.com/item?id=31387447