Date: Wed, 3 Aug 2011 10:11:37 -0400
From: Jim Rees <rees@umich.edu>
To: Peng Tao <bergwolf@gmail.com>
Cc: "Myklebust, Trond" <Trond.Myklebust@netapp.com>,
        "Adamson, Andy" <William.Adamson@netapp.com>,
        Christoph Hellwig <hch@infradead.org>, linux-nfs@vger.kernel.org,
        peter honeyman <honey@citi.umich.edu>
Subject: Re: [PATCH v4 00/27] add block layout driver to pnfs client
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Peng Tao wrote:

  How do you reproduce it? I was reproducing it by running ./check -nfs
  and let it run to case 089 and kill it after case 089 run for seconds.

./check -nfs 089

After less than a minute, I start getting hung tasks (I have hung task
timeout set to 10 sec).