Re: oops in nfs_flush_incompatible (and possible fix?)

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On Tue, 07 Dec 2010 23:19:32 -0500
Trond Myklebust <Trond.Myklebust@xxxxxxxxxx> wrote:

> On Tue, 2010-12-07 at 22:45 -0500, Trond Myklebust wrote:
> > On Tue, 2010-12-07 at 22:17 -0500, Trond Myklebust wrote:
> > > OK... I think I see why the hang:
> > > 
> > > I believe that it is basically due to nfs_clear_page_tag_locked() making
> > > the assumption that if req->wb_page != NULL, then the corresponding
> > > nfsi->nfs_page_tree lock tag needs to be cleared.
> > > 
> > > Maybe we can do that differently by just setting a flag to indicate
> > > whether or not this request is mapped into the radix tree...
> > 
> > The following patch is completely untested, but should do the trick....
> 
> ...and it appears to work correctly for me.
> 

Thanks Trond,

I'll test it out too and also backport that patch for RHEL5.

Cheers,
-- 
Jeff Layton <jlayton@xxxxxxxxxx>
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