Bug#685407: [wheezy] jfs + nfs duplicate cookies problem

[Jonathan McDowell <noodles@earth.li>]

On Thu, Dec 13, 2012 at 09:54:45AM -0800, Jonathan Nieder wrote:
> Jonathan McDowell wrote:
> 
> > Sorry, yes, though further investigating I can see this happening on
> > exports that are JFS on the server side, so I'm not sure the patches
> > already in this bug report are applicable.
> 
> Do you have logs of the failure?
> 
> JFS uses 32-bit readdir cookies but if I understand
> fs/jfs/jfs_dtree.c::add_index() correctly then they are sequential,
> unlike the hashes ext2/3/4 use.

I see things like:

[593351.877678] NFS: directory fs/nfsd contains a readdir loop.Please contact your server vendor.  The file: .nfs3proc.o.cmda.com has duplicate cookie 73
[593351.904689] NFS: directory fs/nfsd contains a readdir loop.Please contact your server vendor.  The file: .nfs3proc.o.cmda.com has duplicate cookie 73

J.

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Evil will always triumph over Good, because Good is dumb.