From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mx0b-002c1b01.pphosted.com ([148.163.155.12]:60826 "EHLO mx0b-002c1b01.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729437AbeHOUs1 (ORCPT ); Wed, 15 Aug 2018 16:48:27 -0400 From: Felipe Franciosi To: Greg Kroah-Hartman CC: Ming Lei , "stable@vger.kernel.org" , "linux-block@vger.kernel.org" , Omar Sandoval , "Martin K. Petersen" , James Bottomley , Christoph Hellwig , Don Brace , Kashyap Desai , Paolo Bonzini , Mike Snitzer , Laurence Oberman , "Greg A. Smith" , Peter Turschmid Subject: Re: Fix for 84676c1f (b5b6e8c8) missing in 4.14.y Date: Wed, 15 Aug 2018 17:28:46 +0000 Message-ID: References: <53EA26B1-86F8-40BF-A128-33137217A3F9@nutanix.com> <20180810023128.GB2816@ming.t460p> <20180810101541.GB31002@kroah.com> <20180810183228.GB18728@kroah.com> <6A8BCAB8-5887-4CDE-8BF1-1D371C090D7E@nutanix.com> <6A42DA82-A572-41D1-B884-64F6458543BC@nutanix.com> <20180815152812.GA524@kroah.com> In-Reply-To: <20180815152812.GA524@kroah.com> Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Sender: linux-block-owner@vger.kernel.org List-Id: linux-block@vger.kernel.org > On 15 Aug 2018, at 16:28, Greg Kroah-Hartman = wrote: >=20 > On Wed, Aug 15, 2018 at 02:30:23PM +0000, Felipe Franciosi wrote: >>=20 >>> On 10 Aug 2018, at 20:43, Felipe Franciosi wrote: >>>=20 >>>=20 >>>> On 10 Aug 2018, at 11:32, Greg Kroah-Hartman wrote: >>>>=20 >>>> On Fri, Aug 10, 2018 at 05:10:52PM +0000, Felipe Franciosi wrote: >>>>>=20 >>>>>> On 10 Aug 2018, at 03:15, Greg Kroah-Hartman wrote: >>>>>>=20 >>>>>> On Fri, Aug 10, 2018 at 10:31:29AM +0800, Ming Lei wrote: >>>>>>> On Fri, Aug 10, 2018 at 02:09:01AM +0000, Felipe Franciosi wrote: >>>>>>>> Hi Ming (and all), >>>>>>>>=20 >>>>>>>> Your series "scsi: virtio_scsi: fix IO hang caused by irq vector a= utomatic affinity" which forces virtio-scsi to use blk-mq fixes an issue in= troduced by 84676c1f. We noticed that this bug also exists in 4.14.y (as ef= 86f3a72adb), but your series was not backported to that stable branch. >>>>>>>>=20 >>>>>>>> Are there any plans to do that? At least CoreOS is using 4.14 and = showing issues on AHV (which provides an mq virtio-scsi controller). >>>>>>>>=20 >>>>>>>=20 >>>>>>> Hi Felipe, >>>>>>>=20 >>>>>>> Looks the following 4 patches should have been marked as stable, so= rry >>>>>>> for missing that. >>>>>>>=20 >>>>>>> b5b6e8c8d3b4 scsi: virtio_scsi: fix IO hang caused by automatic irq= vector affinity >>>>>>> 2f31115e940c scsi: core: introduce force_blk_mq >>>>>>> adbe552349f2 scsi: megaraid_sas: fix selection of reply queue >>>>>>> 8b834bff1b73 scsi: hpsa: fix selection of reply queue >>>>>>>=20 >>>>>>> Usually this backporting is done by our stable guys, so I will CC s= table >>>>>>> and leave them handle it, but I am happy to provide any help for >>>>>>> addressing conflicts or sort of thing. >>>>>>=20 >>>>>> As the above patches do not apply "cleanly" to the 4.14.y tree at al= l, >>>>>> can you please provide a set of backported patches that I can apply? >>>>>=20 >>>>> Actually, adbe552349f2 is already present in 4.14.y. It is commit e58= 114824fa6. >>>>>=20 >>>>> If you skip that, all the other three apply cleanly. >>>>=20 >>>> Ok, that works, but there's another bug report of aacraid having >>>> problems. Any ideas? >>>=20 >>> Heya, I actually have no idea which bug you are talking about. TBH I'm = only experiencing the bug fixed by b5b6e8c8d3b4, which only requires 2f3111= 5e940c. (I tested a 4.14 with both commits which resolves the bug.) >>>=20 >>> I doubt any of that would have any interference with aacraid and should= be safe backports in that respect. >>=20 >> Hi Greg, sorry to bother but I didn't hear anything back about this. >> Are you picking up 2f31115e940c and b5b6e8c8d3b4 for 4.14.y or waiting >> for some other action? >=20 > They are in 4.14.63-rc1 right now, did you not see them? Hi Greg, terribly sorry. I fetched the wrong remote and didn't see them bef= ore. Double checked now and it's there. :) Thanks! F. >=20 > thanks, >=20 > greg k-h