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 4A41533EA for ; Mon, 8 Apr 2024 11:05:47 +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=1712574348; cv=none; b=oiENNILdnvU5xQgfz3U+iEl+XKtXk900IAF0JsvmL2B9qSBAFAA5fKh0UqMES8hMiVZBAO1+oFsf9lsPQL50F9Le9hauApnXLLq/54VGG52nSCcXCb9is+o9t5M1UdIhJGxgQCsv7L26UlE86JQKCUVHaVlbFVxaeWftJMc+Qts= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712574348; c=relaxed/simple; bh=RadQCsKzg81Q1XqoXp12XBaKB24mRnrGDLMTm5uLssE=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=rEDjKwrCYOwBLdoPqmSzJsvwK1vRwEaYV36+4RBjdqCNIAYLe+8KMuuOA0XfFrCWZPHqXaG6BaYFt/aYPiwB47qNU1/vVG3y3aDiWjvIh45MFLXRHzDLYRvMFHFWrpOsAw+kNzYKpLkgJPdq/ECgMpnsNC44yOYLK4zKFW5HGbU= 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=kF/AwbdZ; 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="kF/AwbdZ" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1712574345; bh=RadQCsKzg81Q1XqoXp12XBaKB24mRnrGDLMTm5uLssE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=kF/AwbdZxLkRY+CHgg4PKjZ+ac7Ydb4psYIIb3HVXHJ46gI1yZzGR0r5XyfvqaZyx 4ckyodW+j7/RUxHGC/cuLDFy15Mi/1VXdPZoHVPk/3aFItHKJUH3cOAkYLpAzaRjvb U7N2pT9GwZ9H80CIdQfl/Ut0GQgdrbkKA9lytrMZKBRtk8Krpq1C5UJZ/aXH9L1Phl GasXgzWcmI8S5NTFLwbkdG8dIEuvW2icQiiQUU16emLMxQbLApyHg0rb6/agKZ/mFW hNjXqXd7ZWMuOjQlYBKy4qS4vn9L5DaSvRXWKhS1LxNhLMB7fyFxMzctB2fu/hrtJe y3Z44TRTfErvg== 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 CBB923781183; Mon, 8 Apr 2024 11:05:44 +0000 (UTC) From: Laura Nao To: tglx@linutronix.de Cc: kernel@collabora.com, laura.nao@collabora.com, linux-kernel@vger.kernel.org, regressions@leemhuis.info, regressions@lists.linux.dev, x86@kernel.org Subject: Re: [REGRESSION] mainline boot regression on AMD Stoney Ridge Chromebooks Date: Mon, 8 Apr 2024 13:06:05 +0200 Message-Id: <20240408110605.164608-1-laura.nao@collabora.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <87zfu46zal.ffs@tglx> References: <87zfu46zal.ffs@tglx> 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, On 4/8/24 10:20, Thomas Gleixner wrote: > Laura! > > On Fri, Apr 05 2024 at 16:59, Thomas Gleixner wrote: >> On Fri, Apr 05 2024 at 15:58, Laura Nao wrote: >>> On 4/5/24 15:38, Thomas Gleixner wrote: >>>> >>>> Can you please boot a working kernel and provide the output of: >>>> >>>> # rdmsr 0xc0011005 >>> >>> # rdmsr 0xc0011005 >>> 2fabbfff2fd3fbff >> >> Ok. So the CPU does not advertise FEATURE_TOPOEXT which is consistent >> with CPUID. >> >> Now I'm even more puzzled because then the patch I gave you should make >> a difference. I need to run some errands now, I will provide a debug >> patch later this evening. > > Hmm. No real good idea yet. > > Can you please checkout > > c749ce393b8f ("x86/cpu: Use common topology code for AMD") > > and apply the patch further up in the thread and see whether that > boots. We'll take it from there. > Just tried that and it doesn't boot, nothing on the serial console (I kept earlyprintk=ttyS0,115200 in the cmdline). Test job for reference: https://lava.collabora.dev/scheduler/job/13297561 Thanks, Laura