From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from madrid.collaboradmins.com (madrid.collaboradmins.com [46.235.227.194]) (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 21C0B2E419 for ; Thu, 28 Mar 2024 11:49:50 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=46.235.227.194 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711626592; cv=none; b=MK+6q108/Hw2jkrckRw9L3Qr0T+vt7xGLsM1YB/UFRw4w7nnD8zGPj67PxUO4iSrXhLJY9XQ8aCTyNSVm2FAmJ8n3S7X5s/F6malyqFYr3Gj5lWm2q8dYB0Znwb+1f72TItEqKFdlheXqf8DM6FFA1qbYL5gzQ5DHTOnZ0gNkM0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711626592; c=relaxed/simple; bh=TzxfchxKF1g1YLWqQ7EsptMXtq62lqT0fTbIsNNR3Fo=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=drGlfq+lPlRICEnC+6cQkZvt9SmhmPL6IF5zu5e5q8SRWowVIk8+/ONgGhs9hsLkam30zhEekof5d1DHKwHla4ZuqA+MvbKelMX/OWoj/Uc3umQs93tisdARYRhWHlFrezhZk2EsEgonA87chWGxdoH2AH2HlxpMpCPzTfP76z4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=collabora.com; spf=pass smtp.mailfrom=collabora.com; dkim=pass (2048-bit key) header.d=collabora.com header.i=@collabora.com header.b=xT+f5pgy; arc=none smtp.client-ip=46.235.227.194 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=collabora.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=collabora.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=collabora.com header.i=@collabora.com header.b="xT+f5pgy" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1711626589; bh=TzxfchxKF1g1YLWqQ7EsptMXtq62lqT0fTbIsNNR3Fo=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=xT+f5pgyVtmLKfUpZ2gqo7EFR/4xYwwxj3nQ8ImaOVyLzT7J/U40y4XEzNdESN6i9 2pfS8F1Xqo9J2NfqVjY6GoifUKWESKsbN8dliC7gPrPFJRXDMhUSlVq04JWgTa/UcQ lFlKUTsi56GGOkbKXWuKlJZ0GQ4V0tgqegfXAmW1Grnj0p7E6rwGfaNGq6AbFOcARo RSDMN/p1cSgELO0JMe1RKLBCVXkDS/5YYMAE7TUiiWRfh7anyzLQsHujAq8o32XM8g oqme/YhOKr3wdLN2yYTIQjLXVMkU1dt/plYF0yQfDGru3gU5DCbPy3EQzeJ+d1CcRl PwGagJKI5Wmng== Received: from localhost.localdomain (cola.collaboradmins.com [195.201.22.229]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: laura.nao) by madrid.collaboradmins.com (Postfix) with ESMTPSA id EA7E7378003D; Thu, 28 Mar 2024 11:49:48 +0000 (UTC) From: Laura Nao To: laura.nao@collabora.com Cc: kernel@collabora.com, linux-kernel@vger.kernel.org, regressions@lists.linux.dev, tglx@linutronix.de Subject: Re: [REGRESSION] mainline boot regression on AMD Stoney Ridge Chromebooks Date: Thu, 28 Mar 2024 12:50:15 +0100 Message-Id: <20240328115015.36646-1-laura.nao@collabora.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20240328094433.20737-1-laura.nao@collabora.com> References: <20240328094433.20737-1-laura.nao@collabora.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit > Hi Thomas, > > I ran a manual bisection to track down the root cause for this > regression and landed on the c749ce commit from this series: > https://lore.kernel.org/all/20240212153625.145745053@linutronix.de/ > > Do you have any insight on this issue or any suggestion on how to > effectively debug this? > > Thank you! > > Laura Hi again, I actually forgot to quote the previous message describing the issue: > KernelCI has identified a mainline boot regression [1] on the following > AMD Stoney Ridge Chromebooks (grunt family), between v6.8 (e8f897) and > v6.8-1185-g855684c7d938 (855684): > - Acer Chromebook Spin 311 R721T (codename kasumi360) > - HP Chromebook 14 (codename careena) > - HP Chromebook 11A G6 EE (codename barla) > > The kernel doesn't boot at all and nothing is reported on the serial > console after "Starting kernel ...". The issue is still present on the > latest mainline revision. > The defconfig used by KernelCI for the boot tests can be found in [2]. > > Sending this report in order to track the regression while a fix is > identified. > > Thanks, > > Laura > > [1] https://linux.kernelci.org/test/case/id/65fca98e3883a392524c4380/ > [2] > https://storage.kernelci.org/mainline/master/v6.8-11837-g2ac2b1665d3fb/x86_64/x86_64_defconfig%2Bx86-board/gcc-10/config/kernel.config sorry about that! Best, Laura