Return-Path: Received: from moutng.kundenserver.de ([212.227.126.171]:53687 "EHLO moutng.kundenserver.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753506Ab0H3N5i (ORCPT ); Mon, 30 Aug 2010 09:57:38 -0400 Message-ID: <4C7BB8C1.40906@mudrichsystems.com> Date: Mon, 30 Aug 2010 15:57:21 +0200 From: David Mudrich To: sfjro@users.sourceforge.net, Chuck Lever , linux-nfs@vger.kernel.org Subject: Re: AUFS triggers Kernel BUG() in nfs_do_writepage (write.c:276) References: <4C7960EE.6060304@mudrichsystems.com> <3217.1283139187@jrobl> <4C7B53F3.8010709@mudrichsystems.com> <7041.1283154060@jrobl> In-Reply-To: <7041.1283154060@jrobl> Content-Type: multipart/mixed; boundary="------------080805060601010600000101" Sender: linux-nfs-owner@vger.kernel.org List-ID: MIME-Version: 1.0 --------------080805060601010600000101 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Am 30.08.2010 09:41, schrieb sfjro@users.sourceforge.net: > David Mudrich: >> I attached the information you asked for. It seems difficult to have a >> realistic test without AUFS, as it is mounted at the root directory. > Thanx. > It is difficult for me too. > Although I am not confident, these commits (from latest mainline) are > worth to try. If you have no way other than this, you should try. > > > J. R. Okajima > Hello, I applied the patch, same issue. I attached dmesg | tail -n 50. I just tried nfsvers=2 and it works. The problem must be connected with nfs3 writeback. A copy of this mail goes to the linux-nfs list, maybe they can help to further narrow this. 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