I received the following error message when invoking tail:

tail: unrecognized file system type 0x2fc12fc1 for ‘/var/log/rsyncd’.
please report this to bug-coreutils@gnu.org. reverting to polling

The invocation was "tail -vf /var/log/rsyncd" on an OpenSUSE 12.3 Linux/GNU
system using zfs as its standard filesystem.  The zfs/spl version is 0.6.2
(from LLNL's ZFS on Linux codebase).

The coreutils version installed is coreutils-8.17-6.2.1.x86_64.

Thanks,
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Scott.Ingram@KantarMedia.com
Unix Administrator
O: (610)-430-6380
C: (267)-400-0234
*Kantar Media NA | Intelligence*
1385 Enterprise Drive, West Chester 19380

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