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 92F9A23C69; Thu, 18 May 2023 14:23:29 +0000 (UTC) Received: from localhost (unknown [IPv6:2a0c:5a83:9203:ad00:b00e:5f04:110d:a967]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (P-256) 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 A01046605941; Thu, 18 May 2023 15:23:16 +0100 (BST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1684419796; bh=xPO1unEEJVJK0T2OHZBtJMRAKEmESNmxmqAwbWmk0IM=; h=From:To:Cc:Subject:References:In-reply-to:Date:From; b=UZS18BmKRQMiohEWgPcA4RWHECb14V6w64eSrDuN9tKWNbUk22TMBHDX+9QVK/Q7Q SYCxCuNWHV7LuLpZ+Ev3T0RajaYu8YseXPs+rpaB/ToBUGrPW9DPxu7Kjp6xC0N1FP g4JOBtd+jww/UWoYRkR2rKGUA3ceSLy6USSLE/MdWs9UYGVYybN777OI2zQjFgz/qv doxGD+iRX8PUE8nITSPtE61/xoFPlae/utTC/gBSnxPfyPzXDTwx8C5J120RGlD3zQ lFfzjRS7mrGNv75xzoOJP91upfb+yp7n+ZNVKPFU0S37ATMUKWf5GEJ1Fsj6i1+PAs bUKiJNgBPTnyw== From: Ricardo =?utf-8?Q?Ca=C3=B1uelo?= To: Nick Desaulniers Cc: Shreeya Patel , 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 Subject: Re: [PATCH v4] Makefile.compiler: replace cc-ifversion with compiler-specific macros 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> In-reply-to: Date: Thu, 18 May 2023 16:23:13 +0200 Message-ID: <878rdlk9bi.fsf@rcn-XPS-13-9305.i-did-not-set--mail-host-address--so-tickle-me> Precedence: bulk X-Mailing-List: llvm@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Hi Nick, On mi=C3=A9, may 17 2023 at 09:27:41, Nick Desaulniers wrote: > Shreeya mentioned upthread that `qemu_arm-virt-gicv3-uefi` was > failing, so I assume others should be able to repro in qemu. I'd guess > that LAVA lets you have VMs adjacent to physical hardware. Having the > qemu command line, kernel config, and perhaps the initramfs are going > to be the three most useful things for any similar bug report. Sure, I'm using LAVA because that's the safest way to match exactly the same setup from the original test, but anyone can try to reproduce it on their own. You can get the job info and setup from any of the related LAVA jobs. This one for example: https://lava.collabora.dev/scheduler/job/10373216 Trying to reproduce this type of setups is not as straightforward as we'd like, specially for people not familiar with KernelCI, but we're putting in some effort to improve that so that anyone can pick up a regression report and work on it right away. By the way, I found a breaking point in the commit right after the one that the bisector reported: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?= id=3D5750121ae7382ebac8d47ce6d68012d6cd1d7926 but I can't find anything there either that makes the boot hang, specifically for configs including kernel/configs/debug.config. I wouldn't rule out a problem with the qemu configuration. Anyway, this is not a critical problem in any way, although it'd be interesting to find the cause in case we can use the findings to improve the test setups. Cheers, Ricardo