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Fri, 4 Sep 2020 07:33:25 -0400 (EDT) Date: Fri, 4 Sep 2020 13:33:47 +0200 From: Greg KH To: Dakshaja Uppalapati Subject: Re: [PATCH for-stable nvmet 0/6] nvme: Fix for blk_update_request IO error. Message-ID: <20200904113347.GC2831752@kroah.com> References: <20200611155339.9429-1-dakshaja@chelsio.com> <20200617141541.GA712019@dhcp-10-100-145-180.wdl.wdc.com> <20200622112143.GA25601@chelsio.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20200622112143.GA25601@chelsio.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200904_073332_892177_7CBA1425 X-CRM114-Status: GOOD ( 25.36 ) X-BeenThere: linux-nvme@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: sagi@grimberg.me, eduard@hasenleithner.at, Potnuri Bharat Teja , Nirranjan Kirubaharan , stable@vger.kernel.org, linux-nvme@lists.infradead.org, Keith Busch , hch@lst.de Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "Linux-nvme" Errors-To: linux-nvme-bounces+linux-nvme=archiver.kernel.org@lists.infradead.org T24gTW9uLCBKdW4gMjIsIDIwMjAgYXQgMDQ6NTE6NDRQTSArMDUzMCwgRGFrc2hhamEgVXBwYWxh cGF0aSB3cm90ZToKPiBPbiBXZWRuZXNkYXksIEp1bmUgMDYvMTcvMjAsIDIwMjAgYXQgMDc6MTU6 NDEgLTA3MDAsIEtlaXRoIEJ1c2NoIHdyb3RlOgo+ID4gT24gVGh1LCBKdW4gMTEsIDIwMjAgYXQg MDk6MjM6MzNQTSArMDUzMCwgRGFrc2hhamEgVXBwYWxhcGF0aSB3cm90ZToKPiA+ID4gVGhlIGJl bG93IGVycm9yIGlzIHNlZW4gaW4gZG1lc2csIHdoaWxlIGZvcm1hdHRpbmcgdGhlIGRpc2tzIGRp c2NvdmVyZWQgb24gaG9zdC4KPiA+ID4gCj4gPiA+IGRtZXNnOgo+ID4gPiAgICAgICAgIFsgIDYz Ni43MzMzNzRdIGJsa191cGRhdGVfcmVxdWVzdDogSS9PIGVycm9yLCBkZXYgbnZtZTRuMSwgc2Vj dG9yIDAgb3AgMHgzOihESVNDQVJEKSBmbGFncyAweDgwMCBwaHlzX3NlZyAxIHByaW8gY2xhc3Mg MAo+ID4gPiAKPiA+ID4gUGF0Y2ggNiBmaXhlcyBpdCBhbmQgdGhlcmUgYXJlIDUgb3RoZXIgZGVw ZW5kZW50IHBhdGNoZXMgdGhhdCBhbHNvIG5lZWQgdG8gYmUgCj4gPiA+IHB1bGxlZCBmcm9tIHVw c3RyZWFtIHRvIHN0YWJsZSwgNS40IGFuZCA0LjE5IGJyYW5jaGVzLgo+ID4gPiAKPiA+ID4gUGF0 Y2ggMSBkZXBlbmRlbnQgcGF0Y2gKPiA+ID4gCj4gPiA+IFBhdGNoIDIgZGVwZW5kZW50IHBhdGNo Cj4gPiA+IAo+ID4gPiBQYXRjaCAzIGRlcGVuZGVudCBwYXRjaAo+ID4gPiAKPiA+ID4gUGF0Y2gg NCBkZXBlbmRlbnQgcGF0Y2gKPiA+ID4gCj4gPiA+IFBhdGNoIDUgZGVwZW5kZW50IHBhdGNoCj4g PiA+IAo+ID4gPiBQYXRjaCA2IGZpeCBwYXRjaAo+ID4gCj4gPiAxLiBZb3UgbmVlZCB0byBjb3B5 IHRoZSBsaW51eC1udm1lIG1haW5saW5nIGxpc3QgZm9yIGxpbnV4IG52bWUga2VybmVsIHBhdGNo ZXMuCj4gPiAKPiA+IDIuIElmIHlvdSdyZSBzZW5kaW5nIHNvbWVvbmUgZWxzZSdzIHBhdGNoLCB0 aGUgcGF0Y2ggaXMgc3VwcG9zZWQgdG8gaGF2ZQo+ID4gdGhlIEZyb206IHRhZyBzbyB0aGUgYXV0 aG9yIGlzIGFwcHJvcHJpYXRlbHkgaWRlbnRpZmllZC4KPiA+IAo+ID4gMy4gU3RhYmxlIHBhdGNo ZXMgbXVzdCByZWZlcmVjZSB0aGUgdXBzdHJlYW0gY29tbWl0IElELgo+ID4gCj4gPiBBcyBmb3Ig dGhpcyBwYXJ0aWN1bGFyIGlzc3VlLCB3aGlsZSBzdGFibGUgcGF0Y2hlcyBhcmUgcmVxdWlyZWQg dG8KPiA+IHJlZmVyZW5jZSBhbiB1cHN0cmVhbSBjb21taXQsIHlvdSBkb24ndCBuZWVkIHRvIGJy aW5nIGluIGRlcGVuZGVudAo+ID4gcGF0Y2hlcy4gWW91IGFyZSBhbGxvd2VkIHRvIHdyaXRlIGFu IGVxdWl2YWxlbnQgZml4IHNwZWNpZmljIHRvIHRoZQo+ID4gc3RhYmxlIGJyYW5jaCBzbyB0aGF0 IHN0YWJsZSBkb2Vzbid0IG5lZWQgdG8gdGFrZSBhIGJ1bmNoIG9mIHVucmVsYXRlZAo+ID4gY2hh bmdlcy4gRm9yIGV4YW1wbGUsIGl0IGxvb2tzIGxpa2UgdGhpcyBwYXJ0aWN1bGFyIGlzc3N1ZSBj YW4gYmUgZml4ZWQKPiA+IHdpdGggdGhlIGZvbGxvd2luZyBzaW1wbGUgc3RhYmxlIHBhdGNoOgo+ ID4KPiAKPiBIaSBrZWl0aCwKPiAKPiBUaGFua3MgZm9yIHRoZSByZXZpZXcuCj4gCj4gSSBpbml0 aWFsbHkgdHJpZWQgcHVzaGluZyBvbmx5IHRoZSBmaXggKyByZXF1aXJlZCBwb3J0aW9uIG9mIHRo ZSBkZXBlbmRlbnQgCj4gcGF0Y2hlcyhodHRwczovL3d3dy5zcGluaWNzLm5ldC9saXN0cy9zdGFi bGUvbXNnMzg3NzQ0Lmh0bWwpIGJ1dCBhcyB0aGF0IAo+IGFwcHJvYWNoIGlzIGRpc2NvdXJhZ2Vk IGluIHN0YWJsZSB0cmVlLCBJIHN1Ym1pdHRlZCBhbGwgdGhlIHBhdGNoZXMgYXMgaXQgaXMuCj4g Cj4gSGVyZSBhcmUgdGhlIHdheXMgdG8gZml4IHRoZSBpc3N1ZSBpbiBzdGFibGUgdHJlZToKPiAK PiDigKIgIHB1c2ggZml4ICsgYWxsIGRlcGVuZGVudCBwYXRjaGVzCj4g4oCiICBwdXNoIGZpeCAr IGN1c3RvbSBwYXRjaCBvZiBkZXBlbmRlbnQgcGF0Y2hlcwo+IOKAoiAgcmV2ZXJ0IHRoZSBjdWxw cml0IHBhdGNoLgo+IAo+IFBsZWFzZSBsZXQgbWUga25vdyBob3cgdGhpcyBpc3N1ZSBjYW4gYmUg cmVzb2x2ZWQgaW4gc3RhYmxlIHRyZWUuCgpJcyB0aGlzIHN0aWxsIGFuIGlzc3VlPwoKSSBjYW4n dCB0YWtlIGEgc2VyaWVzIG9mIHBhdGNoZXMgdGhhdCBpcyBub3QgaW4gTGludXMncyB0cmVlLCBs aWtlIHlvdQpzZW50IGhlcmUsIHRoYXQncyBhIG5vbi1zdGFydGVyLgoKSWYgeW91IHdhbnQgc3Bl Y2lmaWMgY29tbWl0cyB0byBiZSBhcHBsaWVkLCB0aGF0IGlzIG9uZSB0aGluZywgYW5kIGlmCnlv dSBuZWVkIGEgc3BlY2lmaWMgcGF0Y2ggdG8gYmUgcmV2ZXJ0ZWQgYmVjYXVzZSBpdCBicmVha3Mg dGhpbmdzLApwbGVhc2UgcHJvdmlkZSB0aGF0IGdpdCBpZC4KCmNvbmZ1c2VkLAoKZ3JlZyBrLWgK Cl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCkxpbnV4LW52 bWUgbWFpbGluZyBsaXN0CkxpbnV4LW52bWVAbGlzdHMuaW5mcmFkZWFkLm9yZwpodHRwOi8vbGlz dHMuaW5mcmFkZWFkLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2xpbnV4LW52bWUK From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-4.1 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id A4103C28E83 for ; 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Fri, 4 Sep 2020 07:33:25 -0400 (EDT) Date: Fri, 4 Sep 2020 13:33:47 +0200 From: Greg KH To: Dakshaja Uppalapati Cc: Keith Busch , linux-nvme@lists.infradead.org, eduard@hasenleithner.at, sagi@grimberg.me, hch@lst.de, stable@vger.kernel.org, Nirranjan Kirubaharan , Potnuri Bharat Teja Subject: Re: [PATCH for-stable nvmet 0/6] nvme: Fix for blk_update_request IO error. Message-ID: <20200904113347.GC2831752@kroah.com> References: <20200611155339.9429-1-dakshaja@chelsio.com> <20200617141541.GA712019@dhcp-10-100-145-180.wdl.wdc.com> <20200622112143.GA25601@chelsio.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20200622112143.GA25601@chelsio.com> Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org On Mon, Jun 22, 2020 at 04:51:44PM +0530, Dakshaja Uppalapati wrote: > On Wednesday, June 06/17/20, 2020 at 07:15:41 -0700, Keith Busch wrote: > > On Thu, Jun 11, 2020 at 09:23:33PM +0530, Dakshaja Uppalapati wrote: > > > The below error is seen in dmesg, while formatting the disks discovered on host. > > > > > > dmesg: > > > [ 636.733374] blk_update_request: I/O error, dev nvme4n1, sector 0 op 0x3:(DISCARD) flags 0x800 phys_seg 1 prio class 0 > > > > > > Patch 6 fixes it and there are 5 other dependent patches that also need to be > > > pulled from upstream to stable, 5.4 and 4.19 branches. > > > > > > Patch 1 dependent patch > > > > > > Patch 2 dependent patch > > > > > > Patch 3 dependent patch > > > > > > Patch 4 dependent patch > > > > > > Patch 5 dependent patch > > > > > > Patch 6 fix patch > > > > 1. You need to copy the linux-nvme mainling list for linux nvme kernel patches. > > > > 2. If you're sending someone else's patch, the patch is supposed to have > > the From: tag so the author is appropriately identified. > > > > 3. Stable patches must referece the upstream commit ID. > > > > As for this particular issue, while stable patches are required to > > reference an upstream commit, you don't need to bring in dependent > > patches. You are allowed to write an equivalent fix specific to the > > stable branch so that stable doesn't need to take a bunch of unrelated > > changes. For example, it looks like this particular isssue can be fixed > > with the following simple stable patch: > > > > Hi keith, > > Thanks for the review. > > I initially tried pushing only the fix + required portion of the dependent > patches(https://www.spinics.net/lists/stable/msg387744.html) but as that > approach is discouraged in stable tree, I submitted all the patches as it is. > > Here are the ways to fix the issue in stable tree: > > • push fix + all dependent patches > • push fix + custom patch of dependent patches > • revert the culprit patch. > > Please let me know how this issue can be resolved in stable tree. Is this still an issue? I can't take a series of patches that is not in Linus's tree, like you sent here, that's a non-starter. If you want specific commits to be applied, that is one thing, and if you need a specific patch to be reverted because it breaks things, please provide that git id. confused, greg k-h