From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.6 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id D0AB7C433E7 for ; Wed, 14 Oct 2020 19:02:35 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 7C02F2223F for ; Wed, 14 Oct 2020 19:02:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1602702155; bh=tiVZn7Uy6aKe/fKNIUCOYWaPAhUmavw7le8FCSbV6DA=; h=Date:From:To:Cc:Subject:References:In-Reply-To:List-ID:From; b=NMAf6EiSPtGNvyzDiisBJI9U0fJXc3KYR77VK8AfbpsGus79+7kZ//zUYhQ9dhc7y P5ah41l1QG3GRiCdvZlXsBjU/IHh1XOYHPwe3uQq2G4iVjT+Mwx6KhRVMor9VDXkcZ A3zVKfs8YjOFTf3i+OHZ0oPaR9ZU9Ll3jvZhAV8k= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2389334AbgJNTCe (ORCPT ); Wed, 14 Oct 2020 15:02:34 -0400 Received: from mail.kernel.org ([198.145.29.99]:46556 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726115AbgJNTCe (ORCPT ); Wed, 14 Oct 2020 15:02:34 -0400 Received: from localhost (fw-tnat.cambridge.arm.com [217.140.96.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id DA7A82078A; Wed, 14 Oct 2020 19:02:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1602702153; bh=tiVZn7Uy6aKe/fKNIUCOYWaPAhUmavw7le8FCSbV6DA=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=AM3qqRs3fxoCLtIV80QDm6MedkQc1V4Gd9AmLRYNhh6hJmUp41RLmmGTmSEsaXYfq RVTtCwBR4ncHqZNHgAJMj3trSbtsxbxaFjvLWU8a/BDKXJlAnN30qW4mbcnEvv7KO5 uwfSD5oaGRBifPN7jzp1UzVo81sMXX43iFj5aKDk= Date: Wed, 14 Oct 2020 20:02:26 +0100 From: Mark Brown To: Tomasz Figa Cc: alsa-devel@alsa-project.org, linux-kernel@vger.kernel.org, Cezary Rojewski , Pierre-Louis Bossart , Liam Girdwood , Jie Yang , Jaroslav Kysela , Takashi Iwai , cujomalainey@chromium.org, =?utf-8?Q?=C5=81ukasz?= Majczak Subject: Re: [PATCH] ASoC: Intel: kbl_rt5663_max98927: Fix kabylake_ssp_fixup function Message-ID: <20201014190226.GE4580@sirena.org.uk> References: <20201014141624.4143453-1-tfiga@chromium.org> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="cYtjc4pxslFTELvY" Content-Disposition: inline In-Reply-To: <20201014141624.4143453-1-tfiga@chromium.org> X-Cookie: Take an astronaut to launch. User-Agent: Mutt/1.10.1 (2018-07-13) Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --cYtjc4pxslFTELvY Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Wed, Oct 14, 2020 at 02:16:24PM +0000, Tomasz Figa wrote: > Fixes a boot crash on a HP Chromebook x2: >=20 > [ 16.582225] BUG: kernel NULL pointer dereference, address: 00000000000= 00050 > [ 16.582231] #PF: supervisor read access in kernel mode > [ 16.582233] #PF: error_code(0x0000) - not-present page > [ 16.582234] PGD 0 P4D 0 > [ 16.582238] Oops: 0000 [#1] PREEMPT SMP PTI > [ 16.582241] CPU: 0 PID: 1980 Comm: cras Tainted: G C 5.= 4.58 #1 > [ 16.582243] Hardware name: HP Soraka/Soraka, BIOS Google_Soraka.10431.= 75.0 08/30/2018 Please think hard before including complete backtraces in upstream reports, they are very large and contain almost no useful information relative to their size so often obscure the relevant content in your message. If part of the backtrace is usefully illustrative (it often is for search engines if nothing else) then it's usually better to pull out the relevant sections. --cYtjc4pxslFTELvY Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQEzBAABCgAdFiEEreZoqmdXGLWf4p/qJNaLcl1Uh9AFAl+HS0EACgkQJNaLcl1U h9D8fwf9FvyHCTN7VxT8U5K/g01w3t4Oz9J2KNU29AFJcwQRN9tFkguWron/RH82 W4Hpmis1Hwcou3ECVp0K39jUq43kj7SEgsVMM8EU1498b9y8Y0oFXXmzWi7TBuXO sbgHdVdS2QEsHmfTN06LY2MSDPcecOvKRYlEXrSSKs96+A1HL5b6wxBfNwFhuqaQ RUa0mmJunCEyLH3s+RmjHXJ4YFCzcz5mc2TZmi92IZ6FDn1Ji4xZFHkulNZ5qzHZ q3Rxx580TeC316jSAzO6PZ13ivKiQ/K5HwbvxpvpW7nKVPnBMXfYMGOv3mmyECaj IxJGuJfes8NzHppDVT9C/xCnORqFWQ== =PR0C -----END PGP SIGNATURE----- --cYtjc4pxslFTELvY--