Received: by 2002:a05:6358:51dd:b0:131:369:b2a3 with SMTP id 29csp862806rwl; Thu, 10 Aug 2023 02:51:11 -0700 (PDT) X-Google-Smtp-Source: AGHT+IE96J0tjGWfA8XxkeGhRU2Qv1gvMgI0reTakGJJVijrK339QW8oP4QUT1Sz32rnfV7WLvSl X-Received: by 2002:a2e:8812:0:b0:2b6:a3a0:5f7 with SMTP id x18-20020a2e8812000000b002b6a3a005f7mr1599394ljh.9.1691661070969; Thu, 10 Aug 2023 02:51:10 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1691661070; cv=none; d=google.com; s=arc-20160816; b=jCBzFXkDemXhb14b5kYBq1e1mSkjJ5ws4q86RNDsBSPMmOkGZTvM2WvkjQkesKPY1L J1WsJZ6Djx4eTsaSTq1FJv7yt71ZFBSaR/babUDUKP+H+3ng5YSegK5vS68JhVb4AvzR l/KH4B0DUUgqIiRmOt7pag2Na4Nv70KhBWYiUOim0ksKLqVkjkg9Oby//p98nNa4lJj4 A3S3XSdqf3ItWBz1S7PcPng3mE1V8/gUnkYGUUvCAZsZrDHDW+57LRwV5LLQ3gQc1Afo An2YPraSOAFKW4zGb4reuD5YoWR1UqVlthnAh4GZA8GJbz9pgJ8Ti6r1ka+DFQgi+DB4 gcLg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:in-reply-to:content-disposition:mime-version :references:message-id:subject:cc:to:from:date:dkim-signature; bh=LM+G2WXY8aKY4yJnSkZJ2W6l9N8Kh9eaLkrFwmoW/DU=; fh=t4sShX7IwO9kl1mRuKQdOUjW81gEWUOqhUM7Gt25iYw=; b=aIKJYhPH5a4JqrZ1jGyaa50Ws0evOlrsTrxw80Op9knuPCXuTl1JGwj0BwDQCtTvL/ 78YtrrHcpzYIJCoJHTq1w0Ao2ByeLWTrRTE2E9IsTtoG5qhOPkeS2Fz01UPBk8I5ACua CNd1Be9AOzkRxUKpUXbPoFHnolMrEXGHvNxdw9WDO1Ot9y5uUOye7EtmbOj+NYDplrgy ob9xJHeLGb3ew1glRahkqLVddxHhpKwx9eCKxijj0GXS08Atmq3ONgykRKT6EZOsCNjD I5c+OM6ttRmaJL30RX9Lh6lmugv6Wr3XYI8AzLozAItF+Kw91s/wTG8YqamiZMIILtcA yumg== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@alien8.de header.s=alien8 header.b=a21f34DQ; 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 Return-Path: Received: from out1.vger.email (out1.vger.email. [2620:137:e000::1:20]) by mx.google.com with ESMTP id jw15-20020a17090776af00b0098f34870d82si1301781ejc.159.2023.08.10.02.50.46; Thu, 10 Aug 2023 02:51:10 -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=a21f34DQ; 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 S234792AbjHJJQL (ORCPT + 99 others); Thu, 10 Aug 2023 05:16:11 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54666 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234509AbjHJJPe (ORCPT ); Thu, 10 Aug 2023 05:15:34 -0400 Received: from mail.alien8.de (mail.alien8.de [65.109.113.108]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 659092D51 for ; Thu, 10 Aug 2023 02:15:34 -0700 (PDT) Received: from localhost (localhost.localdomain [127.0.0.1]) by mail.alien8.de (SuperMail on ZX Spectrum 128k) with ESMTP id ACD2240E01A3; Thu, 10 Aug 2023 09:15:32 +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 NrSqTNoI79cw; Thu, 10 Aug 2023 09:15:31 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=alien8.de; s=alien8; t=1691658930; bh=LM+G2WXY8aKY4yJnSkZJ2W6l9N8Kh9eaLkrFwmoW/DU=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=a21f34DQaoMhPz6+5FAClOLyjfhs/gx4tWn14fH4x99VrNtmg4lx+IpRFVZ45tvR0 Er5hYbDlntJAAHIdAB2hxIwQe/9mocIsnhhtmvuxh9smIkcorWblzP0gI+UfBqKlXW /QgQM/Fj0n6i94iDN0e19EeitaNK7iScietDCl/tpAkUsBGzI4UsiCoJKSHnd51IOF Qjo/ap4iG0iW2h/1LtpZSsi1pCkqkgJNdXYeRdryD1ZtBpRFOETShXUjY2DdyysM5R /i1dmwG7ZrCi7+79HoAkrKyXcS9fCaLJoprZVA789u2QpeRTCknJKyCiNJkDYEegBo dZLGlAx0yfaQCJEekh/gP638TdKwkZZsAfXkTsRdeyNGdtCtAiT7dRg5bPt4ivpaCn 53UG4LjGkTleZaAVB208h+gEFXLbnY8VicT90S9ZjukvMzN7+XgZA6/TGQZEn3SKoG HA8ef0eN8nxAvv5PmORDI0WtzT2j5HRhTP1usZ9cwvqJ6vr5Ye4E8GM4dL+dAPHOr7 M9llIBrBY2G48hBzSPWs/YFt5VIHT/WCSrGwb2eCNin6noT1FqeAaUX3E00FhPy6h2 ZsHv3x0NQCdqkD/SBRZdwXpfV3S8VHR/0d9keOwmakAR+Ntmsea/21bjObCD3nqEXm iME5eRQWEx7MFgJSk6F+Sk+k= 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 8C43940E01A0; Thu, 10 Aug 2023 09:15:26 +0000 (UTC) Date: Thu, 10 Aug 2023 11:15:25 +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: <20230810091525.GCZNSqrRVmKC0xJ3JL@fat_crate.local> References: <20230810013334.GA5354@dev-arch.thelio-3990X> <20230810081038.GAZNSbftb6DOgg/U7e@fat_crate.local> <20230810090835.GBZNSpE6tCw+Ci+9yh@fat_crate.local> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <20230810090835.GBZNSpE6tCw+Ci+9yh@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 11:08:35AM +0200, Borislav Petkov wrote: > 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. -rc4 doesn't boot either here. -- Regards/Gruss, Boris. https://people.kernel.org/tglx/notes-about-netiquette