From mboxrd@z Thu Jan 1 00:00:00 1970 From: Shirley Ma Subject: Re: [for-next 1/2] xprtrdma: take reference of rdma provider module Date: Fri, 18 Jul 2014 08:47:37 -0700 Message-ID: <53C94199.4050601@oracle.com> References: <1405605697-11583-1-git-send-email-devesh.sharma@emulex.com> <3e39e90f-7095-4eb9-a844-516672a355ad@CMEXHTCAS2.ad.emulex.com> <53C7E546.3080008@opengridcomputing.com> <1828884A29C6694DAF28B7E6B8A823739933FCA3@ORSMSX109.amr.corp.intel.com> <53C81CB7.2030000@oracle.com> <006d01cfa1f2$65d020d0$31706270$@opengridcomputing.com> <1828884A29C6694DAF28B7E6B8A823739933FDEA@ORSMSX109.amr.corp.intel.com> <008301cfa1fa$f231f550$d695dff0$@opengridcomputing.com> <008c01cfa201$f1eecda0$d5cc68e0$@opengridcomputing.com> <002401cfa28c$11feb4e0$35fc1ea0$@opengridcomputing.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <002401cfa28c$11feb4e0$35fc1ea0$@opengridcomputing.com> Sender: linux-rdma-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Steve Wise , 'Devesh Sharma' , 'Chuck Lever' Cc: "'Hefty, Sean'" , 'Roland Dreier' , linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-Id: linux-rdma@vger.kernel.org On 07/18/2014 06:27 AM, Steve Wise wrote: >>>> We can't really deal with a CM_DEVICE_REMOVE event while there are >>>> active NFS mounts. >>>> >>>> System shutdown ordering should guarantee (one would hope) that NFS >>>> mount points are unmounted before the RDMA/IB core infrastructure is >>>> torn down. Ordering shouldn't matter as long all NFS activity has >>>> ceased before the CM tries to remove the device. >>>> >>>> So if something is hanging up the CM, there's something xprtrdma is >>>> not cleaning up properly. >>>> >>> >>> >>> Devesh, how are you reproducing this? Are you just rmmod'ing the ocrdma >>> module while there are active mounts? >> >> Yes, I am issuing rmmod while there is an active mount. In my case rmmod ocrdma remains >> blocked forever. Where is it blocked? >> Off-the-course of this discussion: Is there a reasoning behind not using >> ib_register_client()/ib_unregister_client() framework? > > I think the idea is that you don't need to use it if you are transport-independent and use > the rdmacm... > > > > -- > To unsubscribe from this list: send the line "unsubscribe linux-rdma" in > the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html