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[23.128.96.32]) by mx.google.com with ESMTPS id bx36-20020a056a02052400b00578a30162c8si96028pgb.537.2023.10.04.15.26.01 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 04 Oct 2023 15:26:02 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.32 as permitted sender) client-ip=23.128.96.32; Authentication-Results: mx.google.com; dkim=neutral (body hash did not verify) header.i=@alien8.de header.s=alien8 header.b=fYQPjdHF; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.32 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 89A4980AD9A7; Wed, 4 Oct 2023 15:25:37 -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 S233709AbjJDWZ2 (ORCPT + 99 others); Wed, 4 Oct 2023 18:25:28 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51532 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233517AbjJDWZ0 (ORCPT ); Wed, 4 Oct 2023 18:25:26 -0400 Received: from mail.alien8.de (mail.alien8.de [IPv6:2a01:4f9:3051:3f93::2]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D985DD8 for ; Wed, 4 Oct 2023 15:25:21 -0700 (PDT) Received: from localhost (localhost.localdomain [127.0.0.1]) by mail.alien8.de (SuperMail on ZX Spectrum 128k) with ESMTP id B6F2E40E019B; Wed, 4 Oct 2023 22:25:19 +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 n9qBn8b4CMDs; Wed, 4 Oct 2023 22:25:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=alien8.de; s=alien8; t=1696458315; bh=EiwAAjwjSjz0ZgvaDDNabKgbn/F0A0FPDLTUB0mCu9w=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=fYQPjdHFKwXp0S88lcDR30T+4REbveHCK648u7kk0r3C9AaOjMp9hRpr+8BcmGOSC Sz9UYPxYG4iDSDpJdwM2q6CUy2k63+yquwLBqKig09QOJacWn9/1XnoHz/emS6uPB2 JbdPy0BKGHLZ+JxCmw5yOQo40wKdWrtYj8P4pDXg4PnXj5U8VcWpXB/hQBvfXi+a99 OAA8b2270hIqXWGup10++huXUjLSGVmkrt04+4i+FvlXv+27Ncjpb2MMLQDXyOfOW+ myi7l86mucXwMp3bST7iwgkBlFEj1oyjjPdqJmEiOettb95Vd0E2xXQG4fRhmj8PDQ iNBe4m31kwMxgeGcZFC3DULBa7COPOIYXXAcZ4LNjeh1z+i6DSqt4ZRD3o5XcWkH/Y PGWiMepPQcaiD+SVQsIFeYvO0DJTIb2zZBsTksc3XqiGUKmSSVrmCjj2E0KGejaRuW Wwp+zsQw7oFQ8jxUHtQUdsIGeLJpHGdnKBW/9htoJ4chbm6zJDTaMKQ+HKeUyQrjfK /s1UrZzB9xy2s0KLkdXPLt/A68FotzxcI+KPURUWCMO24Azji+9dw+W7IApJIxE9bD wpyLwDnFO+qFuvUv+t5e9BDOWBzLrD4pMk/GbQ2Y6k/0Z0lcJaqk6Wn8HWtzA5VVci +bx4I42zjheEJv6bp1+KCJiA= 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 BC35A40E019D; Wed, 4 Oct 2023 22:25:12 +0000 (UTC) Date: Thu, 5 Oct 2023 00:25:11 +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: <20231004222511.GHZR3mR/oNFZuJGB9P@fat_crate.local> References: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: Content-Transfer-Encoding: quoted-printable X-Spam-Status: No, score=3.0 required=5.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,RCVD_IN_SBL_CSS, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=no 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]); Wed, 04 Oct 2023 15:25:37 -0700 (PDT) X-Spam-Level: *** On Wed, Oct 04, 2023 at 05:29:32PM +0200, Ren=C3=A9 Rebe wrote: > during cross compiling our =E2=80=9CEmbedded=E2=80=9D Linux Distributio= n T2 (https://t2sde.org) I observers some random illegal instruction buil= d errors since we got ourselves a Ryzen 7950x on launch day a year ago: Thanks for reporting. I'm looking into it. --=20 Regards/Gruss, Boris. https://people.kernel.org/tglx/notes-about-netiquette