From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id E2D05C433E0 for ; Mon, 28 Dec 2020 15:26:59 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id BAB522245C for ; Mon, 28 Dec 2020 15:26:59 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2392533AbgL1P06 (ORCPT ); Mon, 28 Dec 2020 10:26:58 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42776 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2387680AbgL1P0v (ORCPT ); Mon, 28 Dec 2020 10:26:51 -0500 Received: from mail-io1-xd30.google.com (mail-io1-xd30.google.com [IPv6:2607:f8b0:4864:20::d30]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 94F7AC061795 for ; Mon, 28 Dec 2020 07:26:10 -0800 (PST) Received: by mail-io1-xd30.google.com with SMTP id o6so9623537iob.10 for ; Mon, 28 Dec 2020 07:26:10 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:reply-to:from:date:message-id :subject:to:cc; bh=UhNcTN3a6kOuyijy6IwTZGopEC0im7Jf6sspgsY6VGY=; b=vQ9uMSEZ3cDzg//S3NtwLffPUEo74XFAw6QiyuahY8xOtEwW4XuzGhz7MusofLOJBe 5TVO1tOc3ZBSjdISvEPdGVIm/VMqUStVGq5uXPrPo7nZrNgRIvEQAqolkKPRLH1PAIeJ gohJoC2xuxw9CJnMlhwEGMCPqhQmX1MJEMGLCZserLWznm3xZtS1AbLffD1j7Gu1DDtm THflaUnKBdlR5/hKvcrTfDL4ZvQyp1nIA46QqeSbjxobV7Vv3k/IxC/TKYqi/mNn+3Nk /bO0OLB5iORxXH82QBKTmsYPZrF1c0FK+jafyc8BK2g27MA/qsXofg+l2xzYJW7Psvw7 Qoew== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:reply-to :from:date:message-id:subject:to:cc; bh=UhNcTN3a6kOuyijy6IwTZGopEC0im7Jf6sspgsY6VGY=; b=raTwgq1o9XSqoTLvvUVY+PuWOfJ1RaSHe9wfhWeH0ZQV3aNH+/8D+NBQmeyEsz5WR/ xjCmXpEfWUVbEz0ykBkElg0H2mmRgb9mkplE9+l05FNIxTldm/u5FxHrKsfbzs2Z0xHP SiQzAPHDaNXtQRW5n37X3Qwy9buWlYCf7SJbb7qh1aqtF8f1TcDMTcl1X6cuc/U+0q8I KsA4iJOpgvOM5TO+tL1EPNownKVGBrL8Mh39pROUi2y8AZKWEg9KXmkEtAvDfhII325y S5SisNZfI46Eja6HOhDWA44tre3K43TJ7DdbM3ON/ix4eldCY0VWnTExzI5y6xXDou/+ Xm1g== X-Gm-Message-State: AOAM533SOuq8TkVqcX8EDiDU4LJso7HElk4OTQ1oZut+MQ7TLddEwSls wp4iSF6B12yqhPQYsbSMNxV7W1Z+wguMgNz+bqmvvnz1oTo= X-Google-Smtp-Source: ABdhPJxJbudusJRphyBEUznDC359BFSK/Q3fM12j1KO6Zxss4X+r3x9kGUv/SF3pwUtPjt6Gl2tnyPHmUvWh3i1xQP4= X-Received: by 2002:a6b:92c4:: with SMTP id u187mr36194706iod.57.1609169169965; Mon, 28 Dec 2020 07:26:09 -0800 (PST) MIME-Version: 1.0 References: In-Reply-To: Reply-To: sedat.dilek@gmail.com From: Sedat Dilek Date: Mon, 28 Dec 2020 16:25:59 +0100 Message-ID: Subject: Re: Linux 5.11-rc1 To: Linus Torvalds Cc: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org [ Please CC me I am not subscribed to LKML and linux-kbuild ML ] Hi Linus, I also tested with LLVM toolchain v11.0.1-rc2 together with passing LLVM=1 and LLVM_IAS=1 to my make line. I had one ERROR: error: too few operands for instruction in arch/x86/kvm/svm/sev.c The issue was reported in ClangBuiltLinux (CBL) issue #1216. A fix was offered in [2] and fixes the issue on the kernel-side. I had one WARNING: drivers/gpu/drm/i915/gem/i915_gem_execbuffer.o: warning: objtool: eb_relocate_parse_slow()+0x3d0: stack state mismatch: cfa1=7+120 cfa2=-1+0 drivers/gpu/drm/i915/gem/i915_gem_execbuffer.o: warning: objtool: eb_copy_relocations()+0x229: stack state mismatch: cfa1=7+120 cfa2=-1+0 Looks like a similar issue was reported as "drivers/gpu/drm/i915/gem/i915_gem_execbuffer: objtool warning on stack state mismatch" in [3]. I CCed Josh in the CBL issue #1192. Thanks. Regards, - Sedat - [1] https://github.com/ClangBuiltLinux/linux/issues/1216 [2] https://lore.kernel.org/kvm/20201219063711.3526947-1-natechancellor@gmail.com/ [3] https://github.com/ClangBuiltLinux/linux/issues/1192