Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751772AbcKFL3M (ORCPT ); Sun, 6 Nov 2016 06:29:12 -0500 Received: from basicbox7.server-home.net ([195.137.212.29]:42621 "EHLO basicbox7.server-home.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751577AbcKFL3L (ORCPT ); Sun, 6 Nov 2016 06:29:11 -0500 Subject: Re: Regression in kernel 4.9-rcX - bisected to commit a481daa88fd4 To: Larry Finger , LKML , Alex Deucher References: <3b57a593-776b-b008-a5f2-672b9343f18a@lwfinger.net> From: Thorsten Leemhuis Message-ID: Date: Sun, 6 Nov 2016 12:29:09 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.4.0 MIME-Version: 1.0 In-Reply-To: <3b57a593-776b-b008-a5f2-672b9343f18a@lwfinger.net> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1026 Lines: 23 On 31.10.2016 00:32, Larry Finger wrote: > With the 4.9-rcX kernel, my Dell Latitude D600 laptop has a kernel panic on > shutdown in routine radeon_connector_unregister(). This problem has been > bisected to show that commit a481daa88fd4 ("drm/radeon: always apply pci > shutdown callbacks") is at fault. > > In the routine that crashes, the ddc_bus member of the struct drm_connector is > NULL, thus the following one-line (line-wrapped) patch fixes the problem: > […] > The above change will soon be submitted as a proper patch. This posting to LKML > is intended to publicize the regression as soon as possible. JFYI: I added this report to the list of regressions for Linux 4.9. I'll watch this thread for further updates on this issue to document progress in my weekly reports. Please let me know via regressions@leemhuis.info in case the discussion moves to a different place (bugzilla or another mail thread for example). Current status (afaics): Patch available tia! Ciao, Thorsten P.S.: Thx for CCing me!