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[2620:137:e000::1:20]) by mx.google.com with ESMTP id d5-20020a056402000500b005234f7441fdsi5211915edu.322.2023.08.12.08.13.27; Sat, 12 Aug 2023 08:13:51 -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="DtFXAh/e"; 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 S231791AbjHLNqz (ORCPT + 99 others); Sat, 12 Aug 2023 09:46:55 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53340 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229555AbjHLNqx (ORCPT ); Sat, 12 Aug 2023 09:46:53 -0400 Received: from mail.alien8.de (mail.alien8.de [IPv6:2a01:4f9:3051:3f93::2]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 660F4198B for ; Sat, 12 Aug 2023 06:46:56 -0700 (PDT) Received: from localhost (localhost.localdomain [127.0.0.1]) by mail.alien8.de (SuperMail on ZX Spectrum 128k) with ESMTP id A008840E019C; Sat, 12 Aug 2023 13:46:54 +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 FtWfINdBjqMX; Sat, 12 Aug 2023 13:46:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=alien8.de; s=alien8; t=1691848012; bh=KKJmPDhFaDUed9OkAVAyosuXrrOmKC/WxDhHEMXXWQI=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=DtFXAh/elVWXuq9gmEYUU7nZ8IjYnqxVnMVbYS8Rg/h6GtMblDWhHgdDSAmn5/f0z 6r3rMNvEYQxiy8rpbTbMt+BjRsCLASMaQ8hkRS4aHTNmMkZ/RxMFWmUmXWgg/81ZuV SbSKTOPZBe/DR/vQA6ruDRMN6bQ9XA7WHwf6HqjLiH7sOmkieX6AxHZcFmx90Hih0E PMrv3pMLsUaIyS2KYP5ceD/qunMMDbk+XWMMc8WlUsBPfRNDimGFFwyyPpy+sNqDVK rsmgZEML9VKM7i8Tb4Nq/St6V/h2R5EfhcgANcSbXozMvveTCrFp8gh95XMadjxH9H DHzo4JaW2MlS4uAgwPxq1evbPo9TzXW6+jAZlospC+Q/OK5Di0WoVEOqF2GrLHXynr sMvlbpT5L9vjGjqI4Al3UZ4u6ti+AX1jLsquw+BtD3gW6+Zy14jq9Rp6dmykTb05FB +buIUUX7kKrRgma0LTuQIuUtnWLBQmFyUv+lagbwZn8ZzLwUMInPWGKKzjDBI5i6Sk 4Oga2uJxYpdDv7Ng9TPQ34IzvLOcBwCf/AT2kfY0p2yZ3CdC1zDhMgOd5x44okgLtk Prxj2qxTLl8HvA4oAuCSlRvAt5KMaZywj6zMWHxhsOYxx08tMoJ6ET2Ii2vokjOtSg 75JEaVWw0hqfLL0RY6bSrO2M= 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 8AF3940E0185; Sat, 12 Aug 2023 13:46:46 +0000 (UTC) Date: Sat, 12 Aug 2023 15:46:42 +0200 From: Borislav Petkov To: Nick Desaulniers Cc: Sean Christopherson , Nathan Chancellor , 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: <20230812134642.GGZNeNQpebzu3H3NDh@fat_crate.local> References: <20230810144344.GLZNT3oM6MLVdzGlyd@fat_crate.local> <20230810150706.GA42856@dev-arch.thelio-3990X> <20230810151410.GNZNT+wn/cLBWiU6dO@fat_crate.local> <20230810154831.GA38495@dev-arch.thelio-3990X> <20230810161414.GA4000@dev-arch.thelio-3990X> <20230811101456.GDZNYKIHs1k7ri8hrI@fat_crate.local> <20230811140941.GB193223@dev-arch.thelio-3990X> <20230811161225.GIZNZd6QfLUoZv9TLO@fat_crate.local> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: 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,URIBL_BLOCKED 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 Fri, Aug 11, 2023 at 05:42:04PM -0700, Nick Desaulniers wrote: > So far it looks like it's working for folks. Fixing that issue is the > lowest priority issue of the three we found; I'll send it formally > next week. Ok. Also, it might not be needed as some of PeterZ's stuff do simplify that code more so I'm thinking of taking them and will make your fix not needed. But we'll talk. > I literally just had my hard drive fail on my main dev box (that's two > machines fail in one week; laptop wont power on anymore; down to one > machine left). Sounds like Murphy came to visit. I hate that. > Going to see if fsck can help at all; worst case I may > need Nathan to formally send it for me next week. Let's see if I can > recover this machine first...what a way to end the week. SMH Yeah, I can scrape it off some gitgub issue page too - that's not a problem. Btw, this: https://github.com/ClangBuiltLinux/linux/commit/150c42407f87463c27a2459e06845965291d9973 Is this fixing a current issue and so it needs to go to Linus now? If so, I'll expedite it too. Thx. -- Regards/Gruss, Boris. https://people.kernel.org/tglx/notes-about-netiquette