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ext4 and data loss

ext4 and data loss

Posted Mar 13, 2009 0:49 UTC (Fri) by quotemstr (subscriber, #45331)
In reply to: ext4 and data loss by nix
Parent article: ext4 and data loss

They're only out of order from the point of view of a system recovering from a crash. Otherwise, there'd be an even larger furor. :-) I think the way rename is used, it was always intended to have barrier semantics, and sane filesystems should respect that intent.


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ext4 and data loss

Posted Mar 13, 2009 7:58 UTC (Fri) by nix (subscriber, #2304) [Link]

Strongly seconded. I suppose nothing is ever really *guaranteed* about
post-crash state, so this is merely a QoI, but an important one.

(Memories of the Algol 68 standard, I think it was, going to some lengths
to define the behaviour of the system under unspecified circumstances in
which the power was cut, which were meant to include things like
earthquakes.)


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