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From: William Dauchy <wdauchy@gmail.com>
Date: Fri, 3 Aug 2012 14:08:49 +0200
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Subject: Re: nfs_idmap_legacy_upcall
To: David Howells <dhowells@redhat.com>
Cc: Trond Myklebust <Trond.Myklebust@netapp.com>, linux-nfs@vger.kernel.org,
        "Schumaker, Bryan" <Bryan.Schumaker@netapp.com>
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Hi David,

Thank you for your reply.

On Fri, Aug 3, 2012 at 11:47 AM, David Howells <dhowells@redhat.com> wrote:
> I'm afraid I'm not going to be able to do a lot with this until the 13th as
> I'm about to go on holiday.  If it is still a problem when I get back, I'll
> look at it then.

Thanks. I started to dig it and went through the huge backlog between
3.4 and 3.5. It seems like a race during mount since it's only
happening sometimes and can't reproduce it easily.
I first thought there was still an issue in this fix:
b102743: NFS: Force the legacy idmapper to be single threaded
but then found:
4697bd5:NFSv4: Fix a race in the net namespace mount notification

I guess this last one might be related to my issues since idmaper is
using struct nfs_client. I started new tests with it.

Regards,
-- 
William