linux-kernel - Re: nfs3 problem with -rc{2,3} : blame

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Date:	Tue, 19 Jun 2012 02:06:41 +0100
From:	Ken Moffat <zarniwhoop@...world.com>
To:	"Myklebust, Trond" <Trond.Myklebust@...app.com>
Cc:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: nfs3 problem with -rc{2,3} : blame

On Mon, Jun 18, 2012 at 11:10:52PM +0100, Ken Moffat wrote:
> On Mon, Jun 18, 2012 at 10:03:24PM +0000, Myklebust, Trond wrote:
> > 
> > Doesn't 4f97615d19 fix the fs/nfs/direct.c problem too? It should.
> > 
> > Anyhow, if you can apply that on top of the commits that didn't compile,
> > and then continue the bisection, that would be great. We definitely do
> > want the !defined(CONFIG_NFS_V4) case to work in 3.5-final...
> > 
>  OK (I was assuming errors in different places were from different
> causes).  I'll do that after I've rerun rc3 without NFS_V4 with
> SUNRPC_DEBUG.  Thanks.

Bisection now points to:

6d74743b088d116e31fe1b73f47e782ee2016b94 is the first bad commit
commit 6d74743b088d116e31fe1b73f47e782ee2016b94
Author: Trond Myklebust <Trond.Myklebust@...app.com>
Date:   Mon Apr 30 13:27:31 2012 -0400

    NFS: Simplify O_DIRECT page referencing
    
    The O_DIRECT code shouldn't need to hold 2 references to each
page. The
    reference held by the struct nfs_page should suffice.
    
    Signed-off-by: Trond Myklebust <Trond.Myklebust@...app.com>
    Cc: Fred Isaman <iisaman@...app.com>

 I was going to revert that from 3.5.0-rc3 to confirm that my
problem with backups was gone, and then give it more extended
testing to prove firefox downloads were ok, but 6 of 11 hunks
failed, the code has changed and I'm not familiar with it.

 So, for the moment I'm not 100% sure that this is indeed the
problem.

ĸen
-- 
das eine Mal als Tragödie, das andere Mal als Farce
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