linux-kernel - Re: [PATCH 0/4] 2.6.21-rc7 NFS writes: fix a series of issues

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Date:	Thu, 19 Apr 2007 12:09:42 -0400
From:	Trond Myklebust <Trond.Myklebust@...app.com>
To:	Florin Iucha <florin@...ha.net>
Cc:	chuck.lever@...cle.com, Andrew Morton <akpm@...ux-foundation.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Adrian Bunk <bunk@...sta.de>,
	OGAWA Hirofumi <hirofumi@...l.parknet.co.jp>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 0/4] 2.6.21-rc7 NFS writes: fix a series of issues

On Thu, 2007-04-19 at 10:50 -0500, Florin Iucha wrote:
> On Thu, Apr 19, 2007 at 11:17:28AM -0400, Trond Myklebust wrote:
> > On Thu, 2007-04-19 at 11:12 -0400, Chuck Lever wrote:
> > > Perhaps instead of looking at the number of bytes sent, the logic in the 
> > > last hunk of this patch should check which queue the request is sitting on.
> > 
> > ??? It would be a bug for the request to be sitting on _any_ queue when
> > it enters xprt_transmit().
> > 
> > Here is the patch that I'm currently testing.
> 
> Trond,
> 
> What is the set of patches that are you testing?  I'd like to give
> that a spin tonight as well.
> 
> It is possible that what makes my configuration more susceptible
> to the problem is the fact that the client significantly overpowers
> the server: Athlon x2 4200+ with 2Gb of RAM for the client vs. PIII
> 1Ghz 512 MB RAM for the server.  They both have gigabit ethernet
> and both NICs and the switch support jumbo frames.
> 
> Regards,
> florin
> 

See
   http://client.linux-nfs.org/Linux-2.6.x/2.6.21-rc7/

I'm giving the first 5 patches of that series (i.e.
linux-2.6.21-001-cleanup_unstable_write.dif to
linux-2.6.21-005-fix_nfsv4_resend.dif) an extra beating since those are
the ones that I feel should go into 2.6.21 final in order to fix the
read/write regressions that have been reported. They should be identical
to the patches that I posted on lkml in the past 3 days.

Please feel free to grab them and give them a test.

Cheers
  Trond
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