Re: nfsd deadlock, 2.6.36-rc3

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On Thu, Sep 02, 2010 at 06:55:51AM +1000, Neil Brown wrote:
> On Wed, 1 Sep 2010 12:54:01 -0400
> "J. Bruce Fields" <bfields@xxxxxxxxxxxx> wrote:
> > For that reason we just don't support loopback mounts--they're OK for
> > light testing, but it would be difficult to make them completely robust
> > under load.
> 
> I wonder if we could use 'containers' to partition available memory between
> 'nfsd threads' and 'everything else'??  Probably not worth the effort.

cgroups, I don't know, I guess the essential thing would be to make sure
that nfsd has the resources it needs to make forward progress, however
slowly--even if it means, for example, only enough to keep a single
thread processing requests.

--b.
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