Weird message from xfs_repair

[Emmanuel Florac <eflorac@xxxxxxxxxxxxxx>]

Hi everyone,

I've just had to resort to the latest devel version of xfs_repair to
get back some heavily damaged filesystem (thanks to a failing RAID
controller), and it ended with the following message:

cache_purge: shake on cache 0x672030 left 1 nodes!?

What's this about? I didn't look at the source, but a new run of
xfs_repair detected nothing. 

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Emmanuel Florac     |   Direction technique
                    |   Intellique
                    |   <eflorac@xxxxxxxxxxxxxx>
                    |   +33 1 78 94 84 02
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