linux-kernel - Re: 2.6.31-rc8: CIFS with 5 seconds hiccups

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Date:	Wed, 9 Sep 2009 13:07:52 -0400 (EDT)
From:	Christoph Lameter <cl@...ux-foundation.org>
To:	Jeff Layton <jlayton@...hat.com>
cc:	linux-kernel@...r.kernel.org, samba@...ts.samba.org,
	linux-cifs-client@...ts.samba.org
Subject: Re: 2.6.31-rc8: CIFS with 5 seconds hiccups

On Wed, 9 Sep 2009, Jeff Layton wrote:

> My suspicion would be that the server needs to perform an oplock break
> to another client before it can send the response. The only way I know
> how to tell that is to sniff all SMB traffic on the server and watch
> for oplock break calls to other clients when these stalls occur.

That could be tested by switching them off right? If I do

echo 0 >/proc/fs/cifs/OplockEnabled

and then remount the volume it should switch off oplocks?

This has no effect on the stalls.

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