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[2620:137:e000::3:2]) by mx.google.com with ESMTPS id fs8-20020a17090af28800b00278fe0b91edsi5379185pjb.56.2023.10.06.02.33.11 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 06 Oct 2023 02:33:11 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::3:2 as permitted sender) client-ip=2620:137:e000::3:2; Authentication-Results: mx.google.com; dkim=neutral (body hash did not verify) header.i=@alien8.de header.s=alien8 header.b=es+WGVvl; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::3:2 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=alien8.de Received: from out1.vger.email (depot.vger.email [IPv6:2620:137:e000::3:0]) by agentk.vger.email (Postfix) with ESMTP id AAD8581B4AD3; Fri, 6 Oct 2023 02:33:09 -0700 (PDT) X-Virus-Status: Clean X-Virus-Scanned: clamav-milter 0.103.10 at agentk.vger.email Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231429AbjJFJdC (ORCPT + 99 others); Fri, 6 Oct 2023 05:33:02 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44094 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231408AbjJFJdA (ORCPT ); Fri, 6 Oct 2023 05:33:00 -0400 Received: from mail.alien8.de (mail.alien8.de [IPv6:2a01:4f9:3051:3f93::2]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 419F6DB for ; Fri, 6 Oct 2023 02:32:59 -0700 (PDT) Received: from localhost (localhost.localdomain [127.0.0.1]) by mail.alien8.de (SuperMail on ZX Spectrum 128k) with ESMTP id 439A140E0177; Fri, 6 Oct 2023 09:32:57 +0000 (UTC) X-Virus-Scanned: Debian amavisd-new at mail.alien8.de Authentication-Results: mail.alien8.de (amavisd-new); dkim=fail (4096-bit key) reason="fail (body has been altered)" header.d=alien8.de Received: from mail.alien8.de ([127.0.0.1]) by localhost (mail.alien8.de [127.0.0.1]) (amavisd-new, port 10026) with ESMTP id GGquypxA69mw; Fri, 6 Oct 2023 09:32:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=alien8.de; s=alien8; t=1696584772; bh=3UDS7cLVUNdY360dA5csdl+o8S66VLEskwbzM1Hym1w=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=es+WGVvlauGEc0R7kh4lMoLMDuF3Pr7d6qJosft6lwYEptqEZ+0nSthGxwGZKvLYZ la5bnArN8vaNLKh8/SbMaSsG8JYib/6WCR1w3fBe6tLbm62yz53fofAJc6dKwH8nU2 WGMm6t3ebjLZvQL7GF+320nMsfkJyL4YtXe7ZhcFoEAvE2LapFOby2QiLr42rNcTB/ SgCaoS6WtRswJ5VB24Q07TSQYd6GAQJrvDBWZoeUsWal/iOSu6zj2aqWuYT0KfCnvw j3Ihq/hJuXrk2d4zONUTsnzHJ9sEHWtUeKzFidi9FTD5epJWsAMSNucmGur834TWJu KAnXpKcpTYaSc0hzxu7I5fyM3GfpDW/t0wL8UaffubZ8MtU+F5fmyzm8i6F2TV2gus ANj20cz+xWRf7/FaqQ7qk7F0yh0gdhAVDywJMOE3I8un9tsmef+ww1KtTPPsqXCZm5 AWYJhKwMfV2ETzVK9ls2M4ccCalGPMcclP7k84wCtfSfYB6QZX48+cJ6nqVpp7X0ZF 1G+0JW2ZxVa3SN5NikQcXm73+KD79rbnh3wtxO8hr+/OLUKT8iQ7x5juFVuIN3i7t6 v4DHk78vg5i36WlvDAgEfPNYBu5acD9OkQDyMgvJ9SoCO23Dg0DBkgM+eR9cM1Hn7q NCI88OXpZbjjAtzdtXqOgb00= Received: from zn.tnic (pd953036a.dip0.t-ipconnect.de [217.83.3.106]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (P-256) server-signature ECDSA (P-256) server-digest SHA256) (No client certificate requested) by mail.alien8.de (SuperMail on ZX Spectrum 128k) with ESMTPSA id 8BE9640E0193; Fri, 6 Oct 2023 09:32:49 +0000 (UTC) Date: Fri, 6 Oct 2023 11:32:44 +0200 From: Borislav Petkov To: =?utf-8?B?UmVuw6k=?= Rebe Cc: linux-kernel@vger.kernel.org, x86@kernel.org Subject: Re: [RFC] AMD Zen4 CPU bug? Spurious SMT Sibling Invalid Opcode Speculation Message-ID: <20231006093244.GAZR/UPJidkn7GIGeL@fat_crate.local> References: <20231004222511.GHZR3mR/oNFZuJGB9P@fat_crate.local> <797F7A00-541E-4333-B653-1120DF5C56B1@exactcode.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <797F7A00-541E-4333-B653-1120DF5C56B1@exactcode.com> Content-Transfer-Encoding: quoted-printable X-Spam-Status: No, score=-0.6 required=5.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on agentk.vger.email Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-Greylist: Sender passed SPF test, not delayed by milter-greylist-4.6.4 (agentk.vger.email [0.0.0.0]); Fri, 06 Oct 2023 02:33:09 -0700 (PDT) On Fri, Oct 06, 2023 at 11:21:13AM +0200, Ren=C3=A9 Rebe wrote: > Thank you Borislav, were you able to reproduce this on Zen 4 you have > access to? I'm still working on it and I'll have something soon. --=20 Regards/Gruss, Boris. https://people.kernel.org/tglx/notes-about-netiquette