Return-Path: linux-nfs-owner@vger.kernel.org Received: from userp1040.oracle.com ([156.151.31.81]:36134 "EHLO userp1040.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754422AbaC0P7R convert rfc822-to-8bit (ORCPT ); Thu, 27 Mar 2014 11:59:17 -0400 Content-Type: text/plain; charset=windows-1252 Mime-Version: 1.0 (Mac OS X Mail 7.2 \(1874\)) Subject: Re: Kernel oops/panic with NFS over RDMA mount after disrupted Infiniband connection From: Chuck Lever In-Reply-To: Date: Thu, 27 Mar 2014 08:59:06 -0700 Cc: linux-rdma@vger.kernel.org, Linux NFS Mailing List Message-Id: References: <5332D425.3030803@ims.co.at> <4E6350BB-5E9C-40D9-8624-6CAA78E5B902@oracle.com> To: Reiter Rafael Sender: linux-nfs-owner@vger.kernel.org List-ID: Hi- On Mar 27, 2014, at 12:53 AM, Reiter Rafael wrote: > On 03/26/2014 07:15 PM, Chuck Lever wrote: >> >> Hi Rafael- >> >> I?ll take a look. Can you report your HCA and how you reproduce this issue? > > The HCA is Mellanox Technologies MT26428. > > Reproduction: > 1) Mount a directory via NFS/RDMA > mount -t nfs -o port=20049,rdma,vers=4.0,timeo=900 172.16.100.2:/ /mnt/ > 2) Pull the Infiniband cable or use ibportstate to disrupt the Infiniband connection > 3) ls /mnt > 4) wait 5-30 seconds Thanks for the information. I have that HCA, but I won?t have access to my test systems for a week (traveling). So can you try this: # rpcdebug -m rpc -s trans then reproduce (starting with step 1 above). Some debugging output will appear at the tail of /var/log/messages. Copy it to this thread. > >> >> Do you (or does anyone) know whether OpenSuSE uses the stock upstream providers, or has any of OFED been applied to this kernel? > > My first post was misleading -- I use the vanilla 3.10.17 kernel, and the error occurs with and without Mellanox OFED. The above report > references the vanilla kernel. > > Rafael > > -- > To unsubscribe from this list: send the line "unsubscribe linux-rdma" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html -- Chuck Lever chuck[dot]lever[at]oracle[dot]com