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[2620:137:e000::1:20]) by mx.google.com with ESMTP id rk13-20020a170907214d00b00992bfd00fdbsi1142638ejb.971.2023.08.10.03.39.22; Thu, 10 Aug 2023 03:39:47 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@alien8.de header.s=alien8 header.b=KNI5yy3y; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=alien8.de Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234160AbjHJJJQ (ORCPT + 99 others); Thu, 10 Aug 2023 05:09:16 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33374 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234239AbjHJJIs (ORCPT ); Thu, 10 Aug 2023 05:08:48 -0400 Received: from mail.alien8.de (mail.alien8.de [65.109.113.108]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4ED272129 for ; Thu, 10 Aug 2023 02:08:48 -0700 (PDT) Received: from localhost (localhost.localdomain [127.0.0.1]) by mail.alien8.de (SuperMail on ZX Spectrum 128k) with ESMTP id B8E5040E01A1; Thu, 10 Aug 2023 09:08:46 +0000 (UTC) X-Virus-Scanned: Debian amavisd-new at mail.alien8.de Authentication-Results: mail.alien8.de (amavisd-new); dkim=pass (4096-bit key) 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 3uPHsuwLfHm2; Thu, 10 Aug 2023 09:08:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=alien8.de; s=alien8; t=1691658524; bh=cYKwZJwn8Zi3aaPjOMpbZPIpubxlBEkGEtU4H+uXorg=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=KNI5yy3yzSzJxFig1ejH50H14RNsKSe4oJ9f1RZ7ZFF7G+4176nvEvyxbxqxpQ4cP ZgB+T3fuV1+uLGvs/hzU9m4MNnfLzoTrNHvXoFdlC0UA0syoMw2gAAL4bjj1UxZObV Y4K6aPE37JN1fNyJaAWCnrDjT2KdjE7sL93Z13IJ8/tIt9P6l15ZIEnkEXemQlFmfg AMqATXo74cIbEMc+WfD/wGi2z7L3a7Q++kNhU8VZwgvBYoXL7lcQdfAIPz1TB8a+Rz UGauz0FRog41rzPWnAkuNZ8Os/97tvoFKjNPwJJUzGCa6HmWauzi32bE6vljxQw8JR +cpzfXIXaPoJ0N5Hz0Geb/u0WGmyXMDb+V3rL3zhduIS33v2wysTGZCBW/CCQPibAY t6bdBBAP1/XaFWAZYM60vTQ7IbpPElfO1doB/fkuqWEqON30RmMbsY+EtFXHQ8Ajwd xdWZMaS3HtbfmQd2CcUZn9OCaDRwTMfkJb26nZTdGfA7Ffs1shE3YeoDmgDies18eS LUHHNNDjXLlw6OTVqQkiYCoCn4i+9PVGwnWUMiqGkzsVxtu6u6BOF/X+5xfHp84NPy oa7/OEDUjoYQVX6DrB7o3WpaPjvLyOi8v+gO/ghI/PHZKmTqYXj19l7iuIOYCTxqtL SxweZVeCV5Efxf4eMPGc1EmE= Received: from zn.tnic (pd9530d32.dip0.t-ipconnect.de [217.83.13.50]) (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 976E940E0140; Thu, 10 Aug 2023 09:08:40 +0000 (UTC) Date: Thu, 10 Aug 2023 11:08:35 +0200 From: Borislav Petkov To: Nathan Chancellor Cc: x86@kernel.org, linux-kernel@vger.kernel.org, llvm@lists.linux.dev Subject: Re: Hang when booting guest kernels compiled with clang after SRSO mitigations Message-ID: <20230810090835.GBZNSpE6tCw+Ci+9yh@fat_crate.local> References: <20230810013334.GA5354@dev-arch.thelio-3990X> <20230810081038.GAZNSbftb6DOgg/U7e@fat_crate.local> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <20230810081038.GAZNSbftb6DOgg/U7e@fat_crate.local> X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_BLOCKED, SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Aug 10, 2023 at 10:10:38AM +0200, Borislav Petkov wrote: > I can repro this here with Debian clang version 14.0.6-2 even with -smp > 2. > > Lemme poke at this a bit. Err, this stops booting even on plain -rc5 which doesn't have the SRSO patches. If so, then you'd need to bisect. -- Regards/Gruss, Boris. https://people.kernel.org/tglx/notes-about-netiquette