I'm sorry you've lost data. I've run bcache and lvm a lot at scale and
haven't seen anything like this, nor are there any other reports as far
as I'm aware. I am new as bcache maintainer but have a pretty high
degree of confidence it doesn't overwrite its own superblocks randomly.
If you come up with a repro I'll be glad to look at it.
Mike
So, it's the first report of such a failure... Ok, when i reinstall
system and i'll have free time, i will try to repoduce this situation,
if it is not caused by random galactic rays.
Last question: bcache now used worldwide, and yet there is no
consistency check&repair tool exist? I am not found answer fo this
question. If it exist, it will help in failure situations with minor
damages.
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