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Tsirkin" To: Ivan Subject: Re: PROBLEM: virtio_net LRO kernel panics Message-ID: <20210723041248-mutt-send-email-mst@kernel.org> References: <9547a9e5-738c-2009-a2af-66173d305c2d@redhat.com> <5fd9c67f-d900-7694-f0a8-62682c8a14c8@redhat.com> <20210723035713-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" T24gRnJpLCBKdWwgMjMsIDIwMjEgYXQgMDM6MDY6MDRBTSAtMDUwMCwgSXZhbiB3cm90ZToKPiBP biBGcmksIEp1bCAyMywgMjAyMSBhdCAyOjU5IEFNIE1pY2hhZWwgUy4gVHNpcmtpbiA8bXN0QHJl ZGhhdC5jb20+IHdyb3RlOgo+ID4KPiA+IE9uIFRodSwgSnVsIDIyLCAyMDIxIGF0IDExOjUwOjEx UE0gLTA1MDAsIEl2YW4gd3JvdGU6Cj4gPiA+IE9uIFRodSwgSnVsIDIyLCAyMDIxIGF0IDExOjI1 IFBNIEphc29uIFdhbmcgPGphc293YW5nQHJlZGhhdC5jb20+IHdyb3RlOgo+ID4gPiA+IOWcqCAy MDIxLzcvMjMg5LiK5Y2IMTA6NTQsIEl2YW4g5YaZ6YGTOgo+ID4gPiA+ID4gT24gVGh1LCBKdWwg MjIsIDIwMjEgYXQgOTozNyBQTSBKYXNvbiBXYW5nIDxqYXNvd2FuZ0ByZWRoYXQuY29tPiB3cm90 ZToKPiA+ID4gPiA+PiBEb2VzIGl0IHdvcmsgaWYgeW91IHR1cm4gb2ZmIGxybyBiZWZvcmUgZW5h YmxpbmcgdGhlIGZvcndhcmRpbmc/Cj4gPiA+ID4gPiAwIHJvb3RATnVSYWlkOn4jIGV0aHRvb2wg LUsgZXRoMCBscm8gb2ZmCj4gPiA+ID4gPiBBY3R1YWwgY2hhbmdlczoKPiA+ID4gPiA+IHJ4LWxy bzogb24gW3JlcXVlc3RlZCBvZmZdCj4gPiA+ID4gPiBDb3VsZCBub3QgY2hhbmdlIGFueSBkZXZp Y2UgZmVhdHVyZXMKPiA+ID4gPgo+ID4gPiA+IE9rLCBpdCBsb29rcyBsaWtlIHRoZSBkZXZpY2Ug bWlzc2VzIHRoZSBWSVJUSU9fTkVUX0ZfQ1RSTF9HVUVTVF9PRkZMT0FEUwo+ID4gPiA+IHdoaWNo IG1ha2VzIGl0IGltcG9zc2libGUgdG8gY2hhbmdlIHRoZSBMUk8gc2V0dGluZy4KPiA+ID4gPgo+ ID4gPiA+IERpZCB5b3UgdXNlIHFlbXU/IElmIHllcywgd2hhdCdzIHRoZSBxZW11IHZlcnNpb24g eW91J3ZlIHVzZWQ/Cj4gPiA+Cj4gPiA+IFRoZXNlIGFyZSBWaXJ0dWFsQm94IG1hY2hpbmVzLCB3 aGljaCBJJ3ZlIGJlZW4gdXNpbmcgZm9yIHllYXJzIHdpdGgKPiA+ID4gbG9uZ3Rlcm0ga2VybmVs cyA0LjE5LCBhbmQgSSBuZXZlciBoYWQgc3VjaCBhIHByb2JsZW0uICBCdXQgbm93IHRoYXQgSQo+ ID4gPiB0cmllZCB1cGdyYWRpbmcgdG8ga2VybmVscyA1LjEwIG9yIDUuMTMgLS0gdGhlIHBhbmlj cyBzdGFydGVkLiAgVGhlc2UKPiA+ID4gYXJlIGp1c3QgZ2VuZXJpYyBrZXJuZWwgYnVpbGRzLCBh bmQgYSBtaW5pbWFsaXN0aWMgdXNlcnNwYWNlLgo+ID4KPiA+IEkgd291bGQgYmUgdXNlZnVsIHRv IHNlZSB0aGUgZmVhdHVyZXMgeW91ciB2aXJ0dWFsYm94IGluc3RhbmNlIHByb3ZpZGVzCj4gPgo+ ID4gY2F0IC9zeXMvY2xhc3MvbmV0L2V0aDAvZGV2aWNlL2ZlYXR1cmVzCj4gCj4gIyBjYXQgL3N5 cy9jbGFzcy9uZXQvZXRoMC9kZXZpY2UvZmVhdHVyZXMKPiAxMTAwMDEwMTEwMTExMDExMTExMTAw MDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwCgoKU28gaWYgSSdtIG5v dCB3cm9uZzoKCjEjZGVmaW5lIFZJUlRJT19ORVRfRl9DU1VNICAgICAgMCAgICAgICAvKiBIb3N0 IGhhbmRsZXMgcGt0cyB3LyBwYXJ0aWFsIGNzdW0gKi8KMSNkZWZpbmUgVklSVElPX05FVF9GX0dV RVNUX0NTVU0gICAgICAgIDEgICAgICAgLyogR3Vlc3QgaGFuZGxlcyBwa3RzIHcvIHBhcnRpYWwg Y3N1bSAqLwowI2RlZmluZSBWSVJUSU9fTkVUX0ZfQ1RSTF9HVUVTVF9PRkZMT0FEUyAyIC8qIER5 bmFtaWMgb2ZmbG9hZCBjb25maWd1cmF0aW9uLiAqLwowI2RlZmluZSBWSVJUSU9fTkVUX0ZfTVRV ICAgICAgIDMgICAgICAgLyogSW5pdGlhbCBNVFUgYWR2aWNlICovCjAKMSNkZWZpbmUgVklSVElP X05FVF9GX01BQyAgICAgICA1ICAgICAgIC8qIEhvc3QgaGFzIGdpdmVuIE1BQyBhZGRyZXNzLiAq LwowCjEjZGVmaW5lIFZJUlRJT19ORVRfRl9HVUVTVF9UU080ICAgICAgICA3ICAgICAgIC8qIEd1 ZXN0IGNhbiBoYW5kbGUgVFNPdjQgaW4uICovCjEjZGVmaW5lIFZJUlRJT19ORVRfRl9HVUVTVF9U U082ICAgICAgICA4ICAgICAgIC8qIEd1ZXN0IGNhbiBoYW5kbGUgVFNPdjYgaW4uICovCjAjZGVm aW5lIFZJUlRJT19ORVRfRl9HVUVTVF9FQ04gOSAgICAgICAvKiBHdWVzdCBjYW4gaGFuZGxlIFRT T1s2XSB3LyBFQ04gaW4uICovCjEjZGVmaW5lIFZJUlRJT19ORVRfRl9HVUVTVF9VRk8gMTAgICAg ICAvKiBHdWVzdCBjYW4gaGFuZGxlIFVGTyBpbi4gKi8KMSNkZWZpbmUgVklSVElPX05FVF9GX0hP U1RfVFNPNCAxMSAgICAgIC8qIEhvc3QgY2FuIGhhbmRsZSBUU092NCBpbi4gKi8KMSNkZWZpbmUg VklSVElPX05FVF9GX0hPU1RfVFNPNiAxMiAgICAgIC8qIEhvc3QgY2FuIGhhbmRsZSBUU092NiBp bi4gKi8KMCNkZWZpbmUgVklSVElPX05FVF9GX0hPU1RfRUNOICAxMyAgICAgIC8qIEhvc3QgY2Fu IGhhbmRsZSBUU09bNl0gdy8gRUNOIGluLiAqLwoxI2RlZmluZSBWSVJUSU9fTkVUX0ZfSE9TVF9V Rk8gIDE0ICAgICAgLyogSG9zdCBjYW4gaGFuZGxlIFVGTyBpbi4gKi8KMSNkZWZpbmUgVklSVElP X05FVF9GX01SR19SWEJVRiAxNSAgICAgIC8qIEhvc3QgY2FuIG1lcmdlIHJlY2VpdmUgYnVmZmVy cy4gKi8KMSNkZWZpbmUgVklSVElPX05FVF9GX1NUQVRVUyAgICAxNiAgICAgIC8qIHZpcnRpb19u ZXRfY29uZmlnLnN0YXR1cyBhdmFpbGFibGUgKi8KMSNkZWZpbmUgVklSVElPX05FVF9GX0NUUkxf VlEgICAxNyAgICAgIC8qIENvbnRyb2wgY2hhbm5lbCBhdmFpbGFibGUgKi8KMSNkZWZpbmUgVklS VElPX05FVF9GX0NUUkxfUlggICAxOCAgICAgIC8qIENvbnRyb2wgY2hhbm5lbCBSWCBtb2RlIHN1 cHBvcnQgKi8KMSNkZWZpbmUgVklSVElPX05FVF9GX0NUUkxfVkxBTiAxOSAgICAgIC8qIENvbnRy b2wgY2hhbm5lbCBWTEFOIGZpbHRlcmluZyAqLwoKCgpfX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fXwpWaXJ0dWFsaXphdGlvbiBtYWlsaW5nIGxpc3QKVmlydHVh bGl6YXRpb25AbGlzdHMubGludXgtZm91bmRhdGlvbi5vcmcKaHR0cHM6Ly9saXN0cy5saW51eGZv dW5kYXRpb24ub3JnL21haWxtYW4vbGlzdGluZm8vdmlydHVhbGl6YXRpb24=