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

[Jonathan Nieder <jrnieder@gmail.com>]

Jonathan McDowell wrote:
> On Thu, Dec 13, 2012 at 09:54:45AM -0800, Jonathan Nieder wrote:

>> 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

Ok, please file a separate bug (or clone this one if you prefer).

My best guess at the moment is that the filesystem is corrupted on the
server side.  If you have run fsck to rule that out, that would be a
comfort.