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Date:   Mon, 3 Dec 2018 11:45:55 +0000
From:   Catalin Marinas <catalin.marinas@arm.com>
To:     Trond Myklebust <trondmy@hammerspace.com>
Cc:     "cristian.marussi@arm.com" <cristian.marussi@arm.com>,
        "linux-nfs@vger.kernel.org" <linux-nfs@vger.kernel.org>
Subject: Re: [PATCH v3 40/44] SUNRPC: Simplify TCP receive code by switching
 to using iterators
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Hi Trond,

On Sun, Dec 02, 2018 at 04:44:49PM +0000, Trond Myklebust wrote:
> On Fri, 2018-11-30 at 14:31 -0500, Trond Myklebust wrote:
> > On Fri, 2018-11-30 at 16:19 +0000, Cristian Marussi wrote:
> > > On 29/11/2018 19:56, Trond Myklebust wrote:
> > > > On Thu, 2018-11-29 at 19:28 +0000, Cristian Marussi wrote:
> > > > Question to you both: when this happens, does /proc/*/stack show
> > > > any of the processes hanging in the socket or sunrpc code? If
> > > > so, can you please send me examples of those stack traces (i.e.
> > > > the contents of /proc/<pid>/stack for the processes that are
> > > > hanging)
> > > 
> > > (using a reverse shell since starting ssh causes a lot of pain and
> > > traffic)
> > > 
> > > Looking at NFS traffic holes(30-40 secs) to detect Client side
> > > various HANGS
> 
> Chuck and I have identified a few issues that might have an effect on
> the hangs you report. Could you please give the linux-next branch in my
> repository on git.linux-nfs.org (
> https://git.linux-nfs.org/?p=trondmy/linux-nfs.git;a=shortlog;h=refs/heads/linux-next
> ) a try?
> 
> git pull git://git.linux-nfs.org/projects/trondmy/linux-nfs.git linux-next

I tried, unfortunately there's no difference for me (I merged the above
branch on top of 4.20-rc5).

-- 
Catalin