From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mike Snitzer Subject: Re: dm-mq and end_clone_request() Date: Tue, 2 Aug 2016 20:40:14 -0400 Message-ID: <20160803004013.GA19956@redhat.com> References: <536022978.7668211.1470060125271.JavaMail.zimbra@redhat.com> <931235537.7668834.1470060339483.JavaMail.zimbra@redhat.com> <1264951811.7684268.1470065187014.JavaMail.zimbra@redhat.com> <17da3ab0-233a-2cec-f921-bfd42c953ccc@sandisk.com> <20160801175948.GA6685@redhat.com> <20160801204628.GA94704@redhat.com> <8e265fcc-8021-830e-ffcb-23a8a28ec247@sandisk.com> <20160802174533.GA18714@redhat.com> <1a460c29-1530-d3e1-25ba-736d86aff12e@sandisk.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Content-Disposition: inline In-Reply-To: <1a460c29-1530-d3e1-25ba-736d86aff12e@sandisk.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: dm-devel-bounces@redhat.com Errors-To: dm-devel-bounces@redhat.com To: Bart Van Assche Cc: "dm-devel@redhat.com" , Laurence Oberman , "linux-scsi@vger.kernel.org" List-Id: linux-scsi@vger.kernel.org On Tue, Aug 02 2016 at 8:19pm -0400, Bart Van Assche wrote: > On 08/02/2016 10:45 AM, Mike Snitzer wrote: > > Please do these same tests against a v4.7 kernel with the 4 patches from > > this branch applied (no need for your other debug patches): > > https://git.kernel.org/cgit/linux/kernel/git/device-mapper/linux-dm.git/log/?h=dm-4.7-mpath-fixes > > > > I've had good results with my blk-mq SRP based testing. > > Hello Mike, > > Thanks again for having made these patches available. The results of my > tests are as follows: Disappointing. But I asked you to run the v4.7 kernel patches I pointed to _without_ any of your debug patches. I cannot reproduce on our SRP testbed with the fixes I provided. We're now in a place where there would appear to be something very unique to your environment causing these failures.