linux-kernel - Re: 3.1-rc4: CIFS VFS: Received no data, expecting 4

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Date:	Wed, 21 Sep 2011 07:57:30 -0400
From:	Jeff Layton <jlayton@...chiereds.net>
To:	Suresh Jayaraman <sjayaraman@...e.com>
Cc:	Justin Piszcz <jpiszcz@...idpixels.com>,
	linux-kernel@...r.kernel.org,
	linux-cifs <linux-cifs@...r.kernel.org>
Subject: Re: 3.1-rc4: CIFS VFS: Received no data, expecting 4

On Wed, 21 Sep 2011 16:54:08 +0530
Suresh Jayaraman <sjayaraman@...e.com> wrote:

> Adding linux-cifs@...r.kernel.org to Cc.
> 
> On 09/18/2011 10:29 PM, Justin Piszcz wrote:
> > Hello,
> > 
> > What does this mean and why does it occur?
> 
> This error seems to occur when we try to read from a socket and actually
> read no data. Not sure when this would occur.
> 

It would be nice to know what was returned by kernel_recvmsg here. Was
it "0" or an error code of some kind?

> > (mounted a Windows 7 share)
> > 
> > [ 1090.606501] CIFS VFS: Received no data, expecting 4
> > [ 1120.575675] CIFS VFS: Received no data, expecting 4
> > [ 1150.544783] CIFS VFS: Received no data, expecting 4
> > [ 1180.513925] CIFS VFS: Received no data, expecting 4
> > [ 1210.483044] CIFS VFS: Received no data, expecting 4
> > [ 1240.452187] CIFS VFS: Received no data, expecting 4
> > [ 1270.421345] CIFS VFS: Received no data, expecting 4
> > [ 1300.390432] CIFS VFS: Received no data, expecting 4
> > [ 1330.359595] CIFS VFS: Received no data, expecting 4
> > [ 1360.328755] CIFS VFS: Received no data, expecting 4
> > [ 1390.283901] CIFS VFS: Received no data, expecting 4
> > [ 1420.249492] CIFS VFS: Received no data, expecting 4
> > [ 1450.218690] CIFS VFS: Received no data, expecting 4
> > [ 1480.187842] CIFS VFS: Received no data, expecting 4
> > [ 1510.156925] CIFS VFS: Received no data, expecting 4
> > [ 1540.126080] CIFS VFS: Received no data, expecting 4
> > [ 1570.095264] CIFS VFS: Received no data, expecting 4
> > [ 1600.064381] CIFS VFS: Received no data, expecting 4
> > [ 1630.033567] CIFS VFS: Received no data, expecting 4
> > [ 1660.002595] CIFS VFS: Received no data, expecting 4
> > [ 1689.971796] CIFS VFS: Received no data, expecting 4
> > [ 1719.940916] CIFS VFS: Received no data, expecting 4
> > [ 1749.910064] CIFS VFS: Received no data, expecting 4
> > [ 1779.879160] CIFS VFS: Received no data, expecting 4
> > [ 1809.848347] CIFS VFS: Received no data, expecting 4
> > [ 1839.817414] CIFS VFS: Received no data, expecting 4
> > [ 1869.786612] CIFS VFS: Received no data, expecting 4
> > [ 1899.755742] CIFS VFS: Received no data, expecting 4
> > [ 1929.724890] CIFS VFS: Received no data, expecting 4
> > [ 1959.694018] CIFS VFS: Received no data, expecting 4
> > [ 1989.663177] CIFS VFS: Received no data, expecting 4
> > [ 2019.632306] CIFS VFS: Received no data, expecting 4
> > [ 2049.601480] CIFS VFS: Received no data, expecting 4
> > 
> > Justin.
> > 
> 
> -Suresh
> --
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-- 
Jeff Layton <jlayton@...chiereds.net>
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