Return-Path: Received: from userp1040.oracle.com ([156.151.31.81]:23474 "EHLO userp1040.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752331AbcBJP2g convert rfc822-to-8bit (ORCPT ); Wed, 10 Feb 2016 10:28:36 -0500 Content-Type: text/plain; charset=us-ascii Mime-Version: 1.0 (Mac OS X Mail 9.2 \(3112\)) Subject: Re: Kernel crash in Centos 6.6 From: Chuck Lever In-Reply-To: <1455106042.4536.21.camel@fis.unical.it> Date: Wed, 10 Feb 2016 10:28:28 -0500 Cc: Linux NFS Mailing List Message-Id: References: <1455106042.4536.21.camel@fis.unical.it> To: fedele.stabile@fis.unical.it Sender: linux-nfs-owner@vger.kernel.org List-ID: Fedele- > On Feb 10, 2016, at 7:07 AM, Fedele Stabile wrote: > > Hello all, > I have a kernel crash when I mount an NFS volume using RDMA transport. > On client and server is installed Centos 6.6 kernel 2.6.32 > -504.8.1.el6.x86_64 > I use nfs v4 > The client hangs if I execute > mount -t nfs -o rdma ib-server:/data /data > Server and client are connected throw Infiniband network and Qlogic > adapters. I assume you mean that the mount command hangs, not that the whole client deadlocks. Add "port=20049" to the mount options. -- Chuck Lever