From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from galois.linutronix.de (Galois.linutronix.de [193.142.43.55]) (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 7FA753BB20 for ; Mon, 8 Apr 2024 08:20:37 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=193.142.43.55 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712564438; cv=none; b=TOz+VVi6VR8L98mx4+bnxsqA+BqAhdOMDYuXer3z3y6Q/Jw9H4d3Rixr4YBJOc2L/XXb5RiV46idaBuFLwMBqzFpGcGj3r0PdTcMSdP5yDx/PxqM1qZeYfsBWRlate56JCEodQ8zG8VNSotj3Zb2+JeBKKgSTd/kqo/k7RQqrpw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712564438; c=relaxed/simple; bh=6KcrIOycZ3UQaXDbv1ynZutea7vqMZldQFCg0ePvU1E=; h=From:To:Cc:Subject:In-Reply-To:References:Date:Message-ID: MIME-Version:Content-Type; b=gqR5bEBJaAKisUKXv1lj5UhsM1xmMcTbzTjeaHbi211c6gBRqQPOnDGzfjkRWzBZkCGF42UirOhhP/eMEmnoCSiop1Rhs2r53m7HlKu+8CUylQ7NWpliSE78q/trJAcWyAmS7Tb5iiBj+BmXACKzuirpr6d2FqbDKC5e2V+9nNA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linutronix.de; spf=pass smtp.mailfrom=linutronix.de; dkim=pass (2048-bit key) header.d=linutronix.de header.i=@linutronix.de header.b=lwMEQRfP; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b=2gAX/aOT; arc=none smtp.client-ip=193.142.43.55 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linutronix.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linutronix.de Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="lwMEQRfP"; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="2gAX/aOT" From: Thomas Gleixner DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1712564435; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=gMVoXZYiIlU4ozo0MMikevpPJnSQyAU1xeiARptVQkM=; b=lwMEQRfPQrZHwqAmcMB4zNpJtkLi8QKVo1LTD3fkZGIpURL/vTWo+9kgfnEW1cv4kVfHzr Ze3Scqi//prSRq+m1VLRkfo89oq/Y/xSC9UrJBTUcCWKgSZ8BAdI5LFDw+9szCOHb0AOmw yr3DkRPJh35NxSaNFQvLXLuUECDnsGFxmEpkwD2UN6wdixnobDoR5u6ar9QBVTx5rWngD7 lh2q8tdL/PNGhcR+8mnBhQZcOkZ+uahk4bjlZOJhcSivzp4Sm2/HyRiZMvPUJ9nrnriot7 Wtugu9jamIGI4eli0RYeP5yAg66PT59MePdEj75w0QucKbX7JgbBn1IEVW17WA== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1712564435; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=gMVoXZYiIlU4ozo0MMikevpPJnSQyAU1xeiARptVQkM=; b=2gAX/aOTReJ9BYRzukzs7x7HXkdrbC/ojll590P0SHoWe3KeuMrM0gwSI190xlkZrlKcoX KpZCGlL7nYVBSsDg== To: Laura Nao 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 In-Reply-To: <87msq797pf.ffs@tglx> References: <87ttkg7wvg.ffs@tglx> <20240405135837.306376-1-laura.nao@collabora.com> <87msq797pf.ffs@tglx> Date: Mon, 08 Apr 2024 10:20:34 +0200 Message-ID: <87zfu46zal.ffs@tglx> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain 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. Thanks, tglx