From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from madras.collabora.co.uk (madras.collabora.co.uk [46.235.227.172]) (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 D57234436; Wed, 17 May 2023 15:39:19 +0000 (UTC) Received: from [IPV6:2a0c:5a83:9203:ad00:6a82:5fb2:6bd2:f97e] (unknown [IPv6:2a0c:5a83:9203:ad00:6a82:5fb2:6bd2:f97e]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: rcn) by madras.collabora.co.uk (Postfix) with ESMTPSA id 2F494660592C; Wed, 17 May 2023 16:39:17 +0100 (BST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1684337957; bh=uKJy4pRowB3D34xI/kCqED8xTiizsjkeJjkVA+sWiDg=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=J3RJBjgQgnVA+7J1qy5wo1XnaBI4eFQ40N2q3EzZPqWSkG4VeLp/HmJIF9KybDYrD p2w+b3Zu/piTF52kCxT5tAT38LiKVEzzDk6dmf6GTAK5aDnanaWtY8rwA7gy4bCd0e /CDRSAWiCmBkhOVGD8zd3T0ysX85HEgrD068tSrV9z3YedxGJTxfoliXX/bEJ5YbuU vie1nXy2EBglJCCKdTAVBlEIy7kOvrgttcXXcGwhph9evDqm1XGYlRkX5W+QSp7uQp /ovShfAMmFjJ3uqoynZvC2GBYeZUR/6U3z7J9+YzBKE6ApI7rSnmAjP7e731LJ3agF CL9Sl1agVbzWg== Message-ID: Date: Wed, 17 May 2023 17:39:14 +0200 Precedence: bulk X-Mailing-List: llvm@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.10.0 Subject: Re: [PATCH v4] Makefile.compiler: replace cc-ifversion with compiler-specific macros Content-Language: en-US To: Nick Desaulniers , Shreeya Patel Cc: Michal Marek , Masahiro Yamada , Linux Kernel Mailing List , clang-built-linux , Bill Wendling , Nathan Chancellor , regressions@lists.linux.dev, "gustavo.padovan@collabora.com" , Guillaume Charles Tucker , denys.f@collabora.com, kernelci@lists.linux.dev References: <20220919170828.3718437-1-ndesaulniers@google.com> <597ef55f-e7c1-ab60-b4aa-0071ff4b5e0e@collabora.com> <89961dfc-d40f-78e4-5d34-b86b7d152182@collabora.com> <17c91d37-7d9c-0df4-2438-2b30ca0b5777@collabora.com> From: =?UTF-8?Q?Ricardo_Ca=c3=b1uelo?= In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Hi Nick, On 16/5/23 1:01, Nick Desaulniers wrote: > Can you please help verify this failure by hand, and see if applying > https://github.com/ClangBuiltLinux/linux/commit/45c4fb6095d872785e077942da896d65d87ab56b.patch > helps? If you can repro; mind sharing your precise steps to reproduce? I ran a few tests but the commit that introduced your changes passes every time. There's a chance that the bisector got misled due to the test runs failing for whatever reason unrelated to the patch. There's definitely something introducing a bug somewhere, as current mainline/master makes this test fail on this target when kernel/configs/debug.config is applied, but it must be somewhere else. I'll investigate this some more to see what I can find. About the steps to reproduce it, we're using the current KernelCI tools (kci_build) to generate the kernel. To actually launch the tests I'm submitting jobs to Collabora's LAVA lab, which is something that isn't available to external users, so it might be a bit hard for you to reproduce the exact environment from the original test. If you need to test something, I can do it for you. Thanks, Ricardo