Colin, that is fantastic, I think we should try to have it in
hardy.proposed as this is a clear improvement over the sysctl hack and
should better address data loss situations in hard reboot scenarios.

One question: I can certainly appreciate the value of quick syncs for
the host filesystem (2), but why do we exactly need -o loop,sync in the
nested filesystem? Is there any benefit for that? My understanding is
that if the host flushes quickly, the nested journal should be safe,
whether the nested fs syncs quickly or not.

-- 
wubi install unusable - Buffer I/O error on device loop0
https://bugs.launchpad.net/bugs/204133
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