From mboxrd@z Thu Jan  1 00:00:00 1970
Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201])
	(using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits))
	(No client certificate requested)
	by smtp.subspace.kernel.org (Postfix) with ESMTPS id 4A9F37A
	for <llvm@lists.linux.dev>; Mon, 14 Feb 2022 15:35:34 +0000 (UTC)
Received: by smtp.kernel.org (Postfix) with ESMTPSA id 223E5C340E9;
	Mon, 14 Feb 2022 15:35:31 +0000 (UTC)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org;
	s=k20201202; t=1644852933;
	bh=GKW1O/9iEU6PCo4adC0DG5ixQw/23hNkDvK3MXbEU/A=;
	h=Date:From:To:Cc:Subject:References:In-Reply-To:From;
	b=ivNsmiPS4Tf+UY9vbDcZjF34lCS0o63Mbho96U/7CiTc5r6c69kGgDsPQZ0HxW5sU
	 peK/+DXnIKlPzS3kY76K+q4SLK3IjgRWmWpEBpOToELnM8+y628Nxgg3ikqgM7trRD
	 SudH1CrRFJX05een+/BoKb2kHwcZ6q+mGL6r7v7ZzLI5AW8ys/LpU1yQKVpN+eB2dA
	 Dvgm6/p7pZw2zUiASzvNiF8tXFr2dolpvzbQccoRGA9XQZF4ryN28Ds07K1QyaNtHk
	 RWQurZTHGXanZvVFav8d4rfPKjc7/EuP3oC/+iBVr7W1LD8SgRCoWQDrrclKiZPwDP
	 h/9ebHsGuy/hQ==
Date: Mon, 14 Feb 2022 08:35:29 -0700
From: Nathan Chancellor <nathan@kernel.org>
To: Naresh Kamboju <naresh.kamboju@linaro.org>
Cc: open list <linux-kernel@vger.kernel.org>, llvm@lists.linux.dev,
	Nick Desaulniers <ndesaulniers@google.com>,
	Eric Dumazet <edumazet@google.com>,
	"David S. Miller" <davem@davemloft.net>,
	Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>,
	David Ahern <dsahern@kernel.org>, Jakub Kicinski <kuba@kernel.org>
Subject: Re: arm64: clang-nightly: net/ipv4/tcp_input.c: clang: error: clang
 frontend command failed with exit code 139
Message-ID: <Ygp2wVo8JfWh5iOk@dev-arch.archlinux-ax161>
References: <CA+G9fYtR+E52X-ucmvXYG5-9v0q2UEXQsML=nkQRnSf7TwXYqw@mail.gmail.com>
Precedence: bulk
X-Mailing-List: llvm@lists.linux.dev
List-Id: <llvm.lists.linux.dev>
List-Subscribe: <mailto:llvm+subscribe@lists.linux.dev>
List-Unsubscribe: <mailto:llvm+unsubscribe@lists.linux.dev>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <CA+G9fYtR+E52X-ucmvXYG5-9v0q2UEXQsML=nkQRnSf7TwXYqw@mail.gmail.com>

Hi Naresh,

On Mon, Feb 14, 2022 at 12:27:17PM +0530, Naresh Kamboju wrote:
> On Linux mainline master branch with arm64 clang-nightly build failed
> due to following errors and warnings.
> 
> make --silent --keep-going --jobs=8
> O=/home/tuxbuild/.cache/tuxmake/builds/current LLVM=1 LLVM_IAS=1
> ARCH=arm64 CROSS_COMPILE=aarch64-linux-gnu-
> CROSS_COMPILE_COMPAT=arm-linux-gnueabihf- HOSTCC=clang CC=clang
> PLEASE submit a bug report to
> https://github.com/llvm/llvm-project/issues/ and include the crash
> backtrace, preprocessed source, and associated run script.
> Stack dump:

<snip>

> 1. <eof> parser at end of file
> 2. Code generation
> 3. Running pass 'Function Pass Manager' on module
> '/builds/linux/net/ipv4/tcp_input.c'.

<snip>

> I have reported this a new issues on github,
> https://github.com/llvm/llvm-project/issues/53811

Thank you for the report! I found this over the weekend myself and
reverted the problematic commit in LLVM and I will make sure that if it
lands again, it can build a kernel without any issues.

https://github.com/llvm/llvm-project/commit/22eb1dae3fb20ca8ada865de1d95baab0e08a060

For the future, you may consider only sending reports of compiler
crashes to Nick, myself, and llvm@lists.linux.dev; a compiler crash is
pretty much never the fault of the source code so CC'ing Linux
maintainers is just noise.

Cheers,
Nathan