From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pl1-f201.google.com (mail-pl1-f201.google.com [209.85.214.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 74C77747C for ; Tue, 13 Feb 2024 00:15:42 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.214.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1707783343; cv=none; b=Qgc+FK1LBXoGXMXgxPrS6YCvaCncuGExv9t4Ktee0XcxoFDlgVI464069y0eAnEuhS4H3yB3HOSjQjDYZ3I3mls6V9q4Y4GNt3bM2g9Frj35st6FPrmB+0tf9QCgFJGwnkTmxebWKA7EklL36kreb+eli4R7lOiqawWk6sqvbfk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1707783343; c=relaxed/simple; bh=ZcFoY5ZEo7lqTmg/W+sT9Io+9hDMm4y9c26cYdg4Zto=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Cc:Content-Type; b=TWUSkFr43Kye3rQDx7Xzq4kUXsm3wGy7dQ7VS1KDT4mBvCKqVpyohnZgryEaGEHvfPuU9vYSdms5uKKwlNvYFRra77gncYnDABPiZFQyr8QkxfoBi2RqnldE1F7IGc/GyBZzqEkBz0yhHf25e7BACOmWecTy5bs6iw23ZXmbvD4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=flex--seanjc.bounces.google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=WS6pgQjB; arc=none smtp.client-ip=209.85.214.201 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=flex--seanjc.bounces.google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="WS6pgQjB" Received: by mail-pl1-f201.google.com with SMTP id d9443c01a7336-1da1559d20fso27718685ad.1 for ; Mon, 12 Feb 2024 16:15:42 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1707783342; x=1708388142; darn=vger.kernel.org; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:from:to:cc:subject:date:message-id:reply-to; bh=F8m/Uv544GTXUPDpKb9f2WygW9/WqUJcSV7kQLbjOvw=; b=WS6pgQjBHDFUCcXt2Co04SNDqpcify7J6JI95vmxU40WDCnJmCKYE6Ajetqf5bt/LT baizBb/rHyqealT88waRAwTfEYATN5AdJVw4xe3rPvZzgrV/CP0M0IWv+AoWNhBVkWbu EXL9PjL0bV0djI+LiVx0OOZJDpYZ1yBsZokGBjj0qowjyRVsdX0E82doGaay5UcMIWzq Ee/bXgvbm9IKK2mhcBEu5tRF15QwZaiFJNGNlld2Q76IUMJ9N4cC0Zmf8O/sY9Ol9RtF 77eS/2+Yh9qGPwGFk+Fs1hq1njGCFv1OWXBHlEdD0kZGt/nV47KwW6f8u6dBfxkauepr COgA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1707783342; x=1708388142; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=F8m/Uv544GTXUPDpKb9f2WygW9/WqUJcSV7kQLbjOvw=; b=t4wRfE4mrEkUgq9KKIdcmOD2qSkozUzL7FQu1WYVhJmENScd+MT15xpFEbNnCJhFSJ HaPLTZ0hWGAti6jhQfELqeHBeS89lnQ+ThZuhF3x+vEwrChiQHds7Dl5x2nIrBiV1WJq nBjoWLPYs7LZJ4r0ySlMuBMRNanyex82hrITwiTULtRAsLndR3gG/QBVKZxInMchUJ+C n3DThsRT1bNBbXmZTHIQFbiPZu1jBN6ud76hVyIdjgTy9Lqcu4OrKfOUO+Q5KNnWUqNy WXDg5JdZVf+45Wmo98y4MKHO3lh2JZAem1LgHruG7IlQUVr6kbsoIhiSyVg3MPeRE1Kw 97Ng== X-Forwarded-Encrypted: i=1; AJvYcCVHRc58L2yOEqLNWEn+sj0tZosBQwgh6ILYKKoG5g/8AT/cWDtF5i6NMpghO2zQ5E5b/8pAa/bKIg8FIr9HXU/m7VQH X-Gm-Message-State: AOJu0Yx4bXLXD8xc5WKkoiJO2y4yalxIb/jK5c/S7gocuAaXXpzVYgaw 5ah1yPbptGyeWt2I7FOTsZErfc0KVEJhMr1SGb76swZy3C3NC1T0Rh9ohYVgLeWRUm0noX2Fx58 uEw== X-Google-Smtp-Source: AGHT+IGyUzAwDS4yq3Uo4MVsgMTl9VONsf9vw6/dk7qFnwfDtow8fZ0mh45RNp2sB4nj9qB1af5Uk1i8dA8= X-Received: from zagreus.c.googlers.com ([fda3:e722:ac3:cc00:7f:e700:c0a8:5c37]) (user=seanjc job=sendgmr) by 2002:a17:903:27c3:b0:1d9:f491:7732 with SMTP id km3-20020a17090327c300b001d9f4917732mr2818plb.6.1707783341588; Mon, 12 Feb 2024 16:15:41 -0800 (PST) Date: Mon, 12 Feb 2024 16:15:39 -0800 In-Reply-To: Precedence: bulk X-Mailing-List: kvm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20240208220604.140859-1-seanjc@google.com> Message-ID: Subject: Re: [PATCH] Kconfig: Explicitly disable asm goto w/ outputs on gcc-11 (and earlier) From: Sean Christopherson To: Linus Torvalds Cc: Uros Bizjak , Nick Desaulniers , Jakub Jelinek , "Andrew Pinski (QUIC)" , "linux-kernel@vger.kernel.org" , Masahiro Yamada , Peter Zijlstra , "kvm@vger.kernel.org" Content-Type: text/plain; charset="us-ascii" On Sun, Feb 11, 2024, Linus Torvalds wrote: > On Sun, 11 Feb 2024 at 03:12, Uros Bizjak wrote: > > > > I'd suggest the original poster to file a bug report in the GCC > > bugzilla. This way, the bug can be properly analysed and eventually > > fixed. The detailed instructions are available at > > https://gcc.gnu.org/bugs/ > > Yes, please. Sean? > > In order to *not* confuse it with the "asm goto with output doesn't > imply volatile" bugs, could you make a bug report that talks purely > about the code generation issue that happens even with a manually > added volatile (your third code sequence in your original email)? Will do. Got a bug report ready, just waiting for a GCC Bugzilla account to be created for me so I can file it...