On 19/02/11 18:28, Mike Frysinger wrote:

based on other threads (which i havent been following too closely), d=

id we=20

settle on this being a btrfs bug ?
-mike

Nope, cp 8.10 is not absolved yet.
It may be btrfs not honoring FIEMAP_FLAG_SYNC,
and/or it may be cp needing to handle FIEMAP_EXTENT_ENCODED
specially.

It would help if you ran `sync` before the copy,
to exclude that as a possible issue.

Also `filefrag -v` output for the file on
the compressed BTRFS file system would be helpful.

thanks,
P=E1draig.
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