Return-Path: linux-nfs-owner@vger.kernel.org Received: from zak.futurequest.net ([69.5.6.152]:57877 "HELO zak.futurequest.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1755286Ab3EMUXx (ORCPT ); Mon, 13 May 2013 16:23:53 -0400 Date: Mon, 13 May 2013 14:22:20 -0600 From: Bruce Guenter To: linux-nfs@vger.kernel.org Subject: Looping NFSv4 traffic Message-ID: <20130513202220.GA16969@untroubled.org> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="jI8keyz6grp/JLjh" Sender: linux-nfs-owner@vger.kernel.org List-ID: --jI8keyz6grp/JLjh Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable I'm seeing repeated duplicated queries going on between a NFSv4 client and server. Both client and server are running linux v3.9.2, but I have observed this with other versions on both. Wireshark decodes it as (copied by hand): V4 Call (Reply In 3) WRITE StateID:0x1c7c Offset:0 Len:8192 V4 Reply (Call In 2) WRITE Status: NFS4ERR_OLD_STATEID I've put a tcpdump recording up here: http://untroubled.org/nfsv4.tcpdump.xz This behavior seems to be most reliably triggered by using Chromium, but I have observed it continuing even after shutting that down. I am able to continue to use the client while this behavior is going on, albeit with considerably reduced NFS performance. What is going on here? --=20 Bruce Guenter http://untroubled.org/ --jI8keyz6grp/JLjh Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.19 (GNU/Linux) iQIcBAEBAgAGBQJRkUt8AAoJEFFRvcnBTTxnvQgP/0cLpZ7Kti+4XNUeSOKZCWpi LzvwQU2cbvH1GeXK+sQDtH+klnldtLbqEw8qTSzWEdB5DGRuTIFwQ4tPGXGWcBL2 1+s3zF6Mm/drAE1qvUm3dVjk/FDLr5wn/zPdvP5auvlK5H23YsE2JslDFwsBRzDD xR2yPnLnEh6Dpf/O+At4let/MZCl88RlCI6T24WM+89YyQgfnnpWLTuOrz2Ui1Pb Pk2dIw6UZhOz+l8o541o0O2XRLPNmTDqEe/mgGG/e7do9xhbNR/myuOdNOLGvpbV Ox+h3I8qwsp7ycOq/kG3EnTPmIi9F5KA7pG4mBvxOPPwCNVT4EyaMhES5EGGaBCA E0gCdxFn/1kaTYqJt7rYY3Jd9g4cJ1K3n3V0YL3WantTa9/vwX8Ioo35YFu/5S9+ h7WAY8c4WqvvqdJkRG7wKQFXnatTVayhfDvtUziYZIj5+TuOz1XCH2bVYL1AVpgn GsPKjZCfA+42P4fbwtTJeZjF0ugOGJ2OGGjac9hmaTpkqotBooaRXde2oWi4fUeR baUvzoOCz0HSykR0K+4YZFY4CIVBlWrdgHQBEWnOIBXByzftxlQI/9zsxU70QtOD aVzDLMsWiusDZFzfWx4I/wdOjh7ibJlIGlL9hhB9LTPHptzGHs7C7OEw6BEFlx8e ncEx/WPY4nll9oaDuRAZ =NHNC -----END PGP SIGNATURE----- --jI8keyz6grp/JLjh--