[Bug 249871] NFSv4 faulty directory listings under heavy load

[bugzilla-noreply at freebsd.org]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=249871

--- Comment #9 from Rick Macklem <rmacklem at FreeBSD.org> ---
Well, if you can see the problem with vanilla NFSv3
(without rdirplus), then forget about the patch that
prints out an error return for VOP_LOOKUP().
--> It in never called for NFSv3 Readdir RPCs.

I have no idea, but it sounds like ZFS returns
different blocks of entries for VOP_READDIR()
when under heavy load or somehow messes up
the directory offset cookies?

It's weird that no one else has ever reported this?

All I can suggest is posting to a mailing list that
the ZFS folks read and see if they have any insight
into what might be occurring.

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