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=-13.5 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=ham 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 9ACCCC4338F for ; Tue, 27 Jul 2021 09:11:36 +0000 (UTC) Received: from smtp1.osuosl.org (smtp1.osuosl.org [140.211.166.138]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 3403361252 for ; Tue, 27 Jul 2021 09:11:36 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 3403361252 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=lists.linux-foundation.org Received: from localhost (localhost [127.0.0.1]) by smtp1.osuosl.org (Postfix) with ESMTP id E756A82E4C; Tue, 27 Jul 2021 09:11:35 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from smtp1.osuosl.org ([127.0.0.1]) by localhost (smtp1.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id H3SqDp3cRTln; Tue, 27 Jul 2021 09:11:35 +0000 (UTC) Received: from lists.linuxfoundation.org (lf-lists.osuosl.org [140.211.9.56]) by smtp1.osuosl.org (Postfix) with ESMTPS id 713D982C3E; Tue, 27 Jul 2021 09:11:34 +0000 (UTC) Received: from lf-lists.osuosl.org (localhost [127.0.0.1]) by lists.linuxfoundation.org (Postfix) with ESMTP id 27CB1C0010; Tue, 27 Jul 2021 09:11:34 +0000 (UTC) Received: from smtp1.osuosl.org (smtp1.osuosl.org [140.211.166.138]) by lists.linuxfoundation.org (Postfix) with ESMTP id 514F5C000E for ; Tue, 27 Jul 2021 09:11:32 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by smtp1.osuosl.org (Postfix) with ESMTP id 2AA5082C8F for ; Tue, 27 Jul 2021 09:11:32 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from smtp1.osuosl.org ([127.0.0.1]) by localhost (smtp1.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id cBIvqdxhJ3yV for ; Tue, 27 Jul 2021 09:11:31 +0000 (UTC) X-Greylist: domain auto-whitelisted by SQLgrey-1.8.0 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [216.205.24.124]) by smtp1.osuosl.org (Postfix) with ESMTPS id 0C65082C3E for ; Tue, 27 Jul 2021 09:11:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1627377089; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=o8iKH58H5ipoFb33Gh09VUrz5ad/Jv7wCA6+Pk32vtI=; b=O6df6v52tKmQDiRP15senpXzT3EZjlyo47nrUau4/2e4eAaKhkBcPaI5JP3j/gcLAfFtUW /Pdl3tLDRVp0TWsHzDb2xyBwYtsvK7ftDMOr9npbF9maTMj58KuLCPlLhYndIlye2CPQ1A E89RfGHE3d9LAotJMb7K3bv5t96K6XA= Received: from mail-ed1-f69.google.com (mail-ed1-f69.google.com [209.85.208.69]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-523-LfEE8K_YPkK7CFPbCGbWow-1; Tue, 27 Jul 2021 05:11:27 -0400 X-MC-Unique: LfEE8K_YPkK7CFPbCGbWow-1 Received: by mail-ed1-f69.google.com with SMTP id b13-20020a056402278db029039c013d5b80so6279620ede.7 for ; Tue, 27 Jul 2021 02:11:26 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:content-transfer-encoding :in-reply-to; bh=o8iKH58H5ipoFb33Gh09VUrz5ad/Jv7wCA6+Pk32vtI=; b=FDDBuMdF2B7yLRs0aJRyWdTF6TGXxvmFMvdsQULFk8PYhClYZQr9e3NnSKMNXy6RvC 4ASn95i1HYgnvxORop7qSVvICArm6qdKoSZJyhgJHvFYm2OI+tZ+IrxOP8v8/Qxx1Bg4 NiWa92NZ21dS1nblp5StskJxYQbBXx7X/+4w9AwQwxneIBcjmIrQVCvcyxyNgsWZbr3n keQNo+CYNVGnkDy19TwGlJ1OU5efFZ8D11m6FFxZBiOGL8r4mD/n/wEgPCX4BAJlgJ/3 xSIDvHelrvSk2Xqsv45EipewlE/NTfSFIk3Ob17Yxl7Q3qbWAYt0ix71qxqtcQaqFoYi VL+g== X-Gm-Message-State: AOAM531E+u5p31P8EcjMx6DKNgr7l1CMJF/6AqgUxgSm2VyZ/FA3fKgf q6llt95nlL9N8caEbk8Q73OOKwl75YDZ+qnAwar+mz86NZOCZmSYF56ZvmHBVo04zV1LEY9PLMz loNXfSNJjltLyF9y5IC2xzcS/AahhcJIcd6AabGHrZQ== X-Received: by 2002:a50:ab1c:: with SMTP id s28mr18495971edc.214.1627377085976; Tue, 27 Jul 2021 02:11:25 -0700 (PDT) X-Google-Smtp-Source: ABdhPJz9jLapuLuZEDCgBHw695t4KSrnQm7Jq/KQggZxxTimQ6IO2PS6StMUCC0xWCVYqP0gNHGxBQ== X-Received: by 2002:a50:ab1c:: with SMTP id s28mr18495951edc.214.1627377085756; Tue, 27 Jul 2021 02:11:25 -0700 (PDT) Received: from redhat.com ([2.55.128.141]) by smtp.gmail.com with ESMTPSA id a22sm398959ejk.35.2021.07.27.02.11.23 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 27 Jul 2021 02:11:25 -0700 (PDT) Date: Tue, 27 Jul 2021 05:11:21 -0400 From: "Michael S. Tsirkin" To: Ivan Subject: Re: PROBLEM: virtio_net LRO kernel panics Message-ID: <20210727050944-mutt-send-email-mst@kernel.org> References: <5fd9c67f-d900-7694-f0a8-62682c8a14c8@redhat.com> <20210723035713-mutt-send-email-mst@kernel.org> <20210723080924-mutt-send-email-mst@kernel.org> MIME-Version: 1.0 In-Reply-To: Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=mst@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Disposition: inline Cc: "David S. Miller" , virtualization@lists.linux-foundation.org, Willem de Bruijn X-BeenThere: virtualization@lists.linux-foundation.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Linux virtualization List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Errors-To: virtualization-bounces@lists.linux-foundation.org Sender: "Virtualization" T24gTW9uLCBKdWwgMjYsIDIwMjEgYXQgMDc6NDQ6NDNQTSAtMDUwMCwgSXZhbiB3cm90ZToKPiBP biBTYXQsIEp1bCAyNCwgMjAyMSBhdCAxMToxOCBQTSBJdmFuIDxpdmFuQHByZXN0aWdldHJhbnNw b3J0YXRpb24uY29tPiB3cm90ZToKPiA+Cj4gPiBPbiBTYXQsIEp1bCAyNCwgMjAyMSBhdCA3OjE3 IFBNIEl2YW4gPGl2YW5AcHJlc3RpZ2V0cmFuc3BvcnRhdGlvbi5jb20+IHdyb3RlOgo+ID4gPgo+ ID4gPiBPbiBGcmksIEp1bCAyMywgMjAyMSBhdCA3OjMzIEFNIEl2YW4gPGl2YW5AcHJlc3RpZ2V0 cmFuc3BvcnRhdGlvbi5jb20+IHdyb3RlOgo+ID4gPj4KPiA+ID4+IE9uIEZyaSwgSnVsIDIzLCAy MDIxIGF0IDc6MTAgQU0gTWljaGFlbCBTLiBUc2lya2luIDxtc3RAcmVkaGF0LmNvbT4gd3JvdGU6 Cj4gPiA+Pj4KPiA+ID4+PiBPbiBGcmksIEp1bCAyMywgMjAyMSBhdCAwMzowNjowNEFNIC0wNTAw LCBJdmFuIHdyb3RlOgo+ID4gPj4+ID4gT24gRnJpLCBKdWwgMjMsIDIwMjEgYXQgMjo1OSBBTSBN aWNoYWVsIFMuIFRzaXJraW4gPG1zdEByZWRoYXQuY29tPiB3cm90ZToKPiA+ID4+PiA+ID4KPiA+ ID4+PiA+ID4gT24gVGh1LCBKdWwgMjIsIDIwMjEgYXQgMTE6NTA6MTFQTSAtMDUwMCwgSXZhbiB3 cm90ZToKPiA+ID4+PiA+ID4gPiBPbiBUaHUsIEp1bCAyMiwgMjAyMSBhdCAxMToyNSBQTSBKYXNv biBXYW5nIDxqYXNvd2FuZ0ByZWRoYXQuY29tPiB3cm90ZToKPiA+ID4+PiA+ID4gPiA+IOWcqCAy MDIxLzcvMjMg5LiK5Y2IMTA6NTQsIEl2YW4g5YaZ6YGTOgo+ID4gPj4+ID4gPiA+ID4gPiBPbiBU aHUsIEp1bCAyMiwgMjAyMSBhdCA5OjM3IFBNIEphc29uIFdhbmcgPGphc293YW5nQHJlZGhhdC5j b20+IHdyb3RlOgo+ID4gPj4+ID4gPiA+ID4gPj4gRG9lcyBpdCB3b3JrIGlmIHlvdSB0dXJuIG9m ZiBscm8gYmVmb3JlIGVuYWJsaW5nIHRoZSBmb3J3YXJkaW5nPwo+ID4gPj4+ID4gPiA+ID4gPiAw IHJvb3RATnVSYWlkOn4jIGV0aHRvb2wgLUsgZXRoMCBscm8gb2ZmCj4gPiA+Pj4gPiA+ID4gPiA+ IEFjdHVhbCBjaGFuZ2VzOgo+ID4gPj4+ID4gPiA+ID4gPiByeC1scm86IG9uIFtyZXF1ZXN0ZWQg b2ZmXQo+ID4gPj4+ID4gPiA+ID4gPiBDb3VsZCBub3QgY2hhbmdlIGFueSBkZXZpY2UgZmVhdHVy ZXMKPiA+ID4+PiA+ID4gPiA+Cj4gPiA+Pj4gPiA+ID4gPiBPaywgaXQgbG9va3MgbGlrZSB0aGUg ZGV2aWNlIG1pc3NlcyB0aGUgVklSVElPX05FVF9GX0NUUkxfR1VFU1RfT0ZGTE9BRFMKPiA+ID4+ PiA+ID4gPiA+IHdoaWNoIG1ha2VzIGl0IGltcG9zc2libGUgdG8gY2hhbmdlIHRoZSBMUk8gc2V0 dGluZy4KPiA+ID4+PiA+ID4gPiA+Cj4gPiA+Pj4gPiA+ID4gPiBEaWQgeW91IHVzZSBxZW11PyBJ ZiB5ZXMsIHdoYXQncyB0aGUgcWVtdSB2ZXJzaW9uIHlvdSd2ZSB1c2VkPwo+ID4gPj4+ID4gPiA+ Cj4gPiA+Pj4gPiA+ID4gVGhlc2UgYXJlIFZpcnR1YWxCb3ggbWFjaGluZXMsIHdoaWNoIEkndmUg YmVlbiB1c2luZyBmb3IgeWVhcnMgd2l0aAo+ID4gPj4+ID4gPiA+IGxvbmd0ZXJtIGtlcm5lbHMg NC4xOSwgYW5kIEkgbmV2ZXIgaGFkIHN1Y2ggYSBwcm9ibGVtLiAgQnV0IG5vdyB0aGF0IEkKPiA+ ID4+PiA+ID4gPiB0cmllZCB1cGdyYWRpbmcgdG8ga2VybmVscyA1LjEwIG9yIDUuMTMgLS0gdGhl IHBhbmljcyBzdGFydGVkLiAgVGhlc2UKPiA+ID4+PiA+ID4gPiBhcmUganVzdCBnZW5lcmljIGtl cm5lbCBidWlsZHMsIGFuZCBhIG1pbmltYWxpc3RpYyB1c2Vyc3BhY2UuCj4gPiA+Pj4gPiA+Cj4g PiA+Pj4gPiA+IEkgd291bGQgYmUgdXNlZnVsIHRvIHNlZSB0aGUgZmVhdHVyZXMgeW91ciB2aXJ0 dWFsYm94IGluc3RhbmNlIHByb3ZpZGVzCj4gPiA+Pj4gPiA+Cj4gPiA+Pj4gPiA+IGNhdCAvc3lz L2NsYXNzL25ldC9ldGgwL2RldmljZS9mZWF0dXJlcwo+ID4gPj4+ID4KPiA+ID4+PiA+ICMgY2F0 IC9zeXMvY2xhc3MvbmV0L2V0aDAvZGV2aWNlL2ZlYXR1cmVzCj4gPiA+Pj4gPiAxMTAwMDEwMTEw MTExMDExMTExMTAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwCj4g PiA+Pj4KPiA+ID4+PiBJIHdhcyBhYmxlIHRvIHJlcHJvZHVjZSB0aGUgd2FybmluZyBidXQgbm90 IHRoZSBwYW5pYy4KPiA+ID4+PiBPVE9IIGlmIExSTyBzdGF5cyBvbiB3aGVuIGVuYWJsaW5nIGZv cndhcmRpbmcgdGhhdAo+ID4gPj4+IGlzIGFscmVhZHkgYSBwcm9ibGVtLiBBbnkgY2hhbmNlIHlv dSBjYW4gYmlzZWN0IHRvCj4gPiA+Pj4gZmluZCBvdXQgd2hpY2ggY2hhbmdlIGludHJvZHVjZWQg dGhlIHBhbmljPwo+ID4gPj4KPiA+ID4+Cj4gPiA+PiBBbnkga2VybmVscyB1cCB0byA0LjE5LjE5 OCBkb24ndCBwYW5pYy4KPiA+ID4+IEFueSBrZXJuZWxzIDUuMTArIHBhbmljIGltbWVkaWF0ZWx5 IHVwb24gc3RhcnRpbmcgZm9yd2FyZGluZy4KPiA+ID4+IEkgaGF2ZSBub3QgdGVzdGVkIGFueSBr ZXJuZWxzIGJldHdlZW4gNC4xOSBhbmQgNS4xMC4KPiA+ID4+IEkgZ3Vlc3MgSSBjYW4gYnVpbGQg YSBmZXcga2VybmVscyBpbmJldHdlZW4sIGFuZCB0cnkgcGlucG9pbnQgd2hlcmUgaXQgc3RhcnRz Lgo+ID4gPj4gVGhhdCBtYXkgdGFrZSBhIGRheSBvciBzby4gIEknbGwgZ2V0IG9uIHdpdGggaXQg bm93LCBhbmQgcmVwb3J0IG15IGZpbmRpbmdzLgo+ID4gPgo+ID4gPiBTbywgSSBuYXJyb3dlZCAg aXQgZG93bjogdGhlIHBhbmljcyBzdGFydCB3aXRoIGtlcm5lbCA1LjAtcmMuCj4gPgo+ID4gTW9y ZSBuYXJvd2x5LCB0aGUgcHJvYmxlbSBzZWVtcyBiZSBjb21pbmcgZnJvbSBjb21taXQKPiA+IGEw MmU4OTY0ZWFmOTI3MWE4YTVmY2MwYzU1YmQxM2Y5MzNiYWZjNTYuCj4gPiBKdXN0IHRvIHRlc3Qg bXkgc3VzcGljaW9uLCBJIGRlbGV0ZWQgYSBmZXcgbGluZXMgZnJvbSB0aGF0IGNvZGUsCj4gPiBh bmQgdGhlIHBhbmljIHdlbnQgYXdheS4gIEhvcGUgdGhhdCBoZWxwcyB5b3UgZ3V5cyBmaWd1cmUg b3V0Cj4gPiB3aGF0IHRoZSBwcm9ibGVtIG1pZ2h0IGJlLgoKV2VsbCBpdCBkaXNhYmxlcyBMUk8g YnV0IHdlIGtuZXcgdGhpcyA6KCBJJ2QgaGVscCBpZiB3ZSBrbmV3CndoZXJlIGRvZXMgaXQgcGFu aWMsIGFsbCB3ZSBzZWUgaXQgdGhlIHdhcm5pbmcgd2hpY2ggaXMKcmVsYXRlZCBmb3Igc3VyZSBi dXQgbm90IHRoZSBpbW1lZGlhdGUgcm9vdGNhdXNlIC4uLgoKPiA+Cj4gPiAtLS0gYS9kcml2ZXJz L25ldC92aXJ0aW9fbmV0LmMKPiA+ICsrKyBiL2RyaXZlcnMvbmV0L3ZpcnRpb19uZXQuYwo+ID4g QEAgLTI5NzgsMTEgKzI5NzgsNiBAQAo+ID4gICB9Cj4gPiAgIGlmICh2aXJ0aW9faGFzX2ZlYXR1 cmUodmRldiwgVklSVElPX05FVF9GX0dVRVNUX0NTVU0pKQo+ID4gICAgICBkZXYtPmZlYXR1cmVz IHw9IE5FVElGX0ZfUlhDU1VNOwo+ID4gLSBpZiAodmlydGlvX2hhc19mZWF0dXJlKHZkZXYsIFZJ UlRJT19ORVRfRl9HVUVTVF9UU080KSB8fAo+ID4gLSAgICB2aXJ0aW9faGFzX2ZlYXR1cmUodmRl diwgVklSVElPX05FVF9GX0dVRVNUX1RTTzYpKQo+ID4gLSAgICBkZXYtPmZlYXR1cmVzIHw9IE5F VElGX0ZfTFJPOwo+ID4gLSBpZiAodmlydGlvX2hhc19mZWF0dXJlKHZkZXYsIFZJUlRJT19ORVRf Rl9DVFJMX0dVRVNUX09GRkxPQURTKSkKPiA+IC0gICAgZGV2LT5od19mZWF0dXJlcyB8PSBORVRJ Rl9GX0xSTzsKPiA+Cj4gPiAgIGRldi0+dmxhbl9mZWF0dXJlcyA9IGRldi0+ZmVhdHVyZXM7Cj4g Cj4gSnVzdCBGWUksIEdvb2dsZSB0dXJuZWQgdXAgdHdvIHNpbWlsYXIgYnVnIHJlcG9zdHMuLi4K PiBBcHIgMTQsIDIwMjAgLS0gaHR0cHM6Ly9naXRodWIuY29tL2NvbnRhaW5lcnMvcG9kbWFuL2lz c3Vlcy81ODE1Cj4gT2N0IDA5LiAyMDIwIC0tIGh0dHBzOi8vYnVnemlsbGEua2VybmVsLm9yZy9z aG93X2J1Zy5jZ2k/aWQ9MjA5NTkzCj4gCj4gSXMgdGhlcmUgYW55IHNlbnNpYmxlIHRoaW5nIEkg Y291bGQgZG8sIHRlbXBvcmFyaWx5LCB1bnRpbCB0aGlzCj4gcHJvYmxlbSBpcyBzb3J0ZWQgb3V0 Pwo+IE9yIGFtIEkgc2ltcGx5IHN0dWNrIHRvIGtlcm5lbHMgNC4xOSBvbiB0aGVzZSBtYWNoaW5l cyBmb3Igbm93PwoKClNvbWV0aGluZyBsaWtlIHRoaXMgSSBndWVzczoKCgpkaWZmIC0tZ2l0IGEv ZHJpdmVycy9uZXQvdmlydGlvX25ldC5jIGIvZHJpdmVycy9uZXQvdmlydGlvX25ldC5jCmluZGV4 IDhhNThhMmYwMTNhZi4uY2M1OTgyMTkzYTQwIDEwMDY0NAotLS0gYS9kcml2ZXJzL25ldC92aXJ0 aW9fbmV0LmMKKysrIGIvZHJpdmVycy9uZXQvdmlydGlvX25ldC5jCkBAIC0zMDYzLDYgKzMwNjMs OCBAQCBzdGF0aWMgaW50IHZpcnRuZXRfdmFsaWRhdGUoc3RydWN0IHZpcnRpb19kZXZpY2UgKnZk ZXYpCiAJCQlfX3ZpcnRpb19jbGVhcl9iaXQodmRldiwgVklSVElPX05FVF9GX01UVSk7CiAJfQog CisJX192aXJ0aW9fY2xlYXJfYml0KHZkZXYsIFZJUlRJT19ORVRfRl9HVUVTVF9UU080KTsKKwlf X3ZpcnRpb19jbGVhcl9iaXQodmRldiwgVklSVElPX05FVF9GX0dVRVNUX1RTTzYpOwogCXJldHVy biAwOwogfQogCgpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f XwpWaXJ0dWFsaXphdGlvbiBtYWlsaW5nIGxpc3QKVmlydHVhbGl6YXRpb25AbGlzdHMubGludXgt Zm91bmRhdGlvbi5vcmcKaHR0cHM6Ly9saXN0cy5saW51eGZvdW5kYXRpb24ub3JnL21haWxtYW4v bGlzdGluZm8vdmlydHVhbGl6YXRpb24=