From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga02.intel.com ([134.134.136.20]:42605 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752426AbcFGHCk convert rfc822-to-8bit (ORCPT ); Tue, 7 Jun 2016 03:02:40 -0400 From: Jani Nikula To: Lyude Paul , Ville =?utf-8?B?U3lyasOkbMOk?= , Daniel Vetter Cc: Daniel Vetter , intel-gfx@lists.freedesktop.org, "open list\:INTEL DRM DRIVERS excluding Poulsbo\, Moorestow...\, linux-kernel\@vger.kernel.org open list" , stable@vger.kernel.org Subject: Re: [Intel-gfx] [PATCH v4] drm/i915/ilk: Don't disable SSC source if it's in use In-Reply-To: <1465241361.7166.2.camel@redhat.com> References: <20160524185924.GI4329@intel.com> <1464199863-9397-1-git-send-email-cpaul@redhat.com> <20160526075456.GM27098@phenom.ffwll.local> <20160606113022.GE4329@intel.com> <1465241361.7166.2.camel@redhat.com> Date: Tue, 07 Jun 2016 10:02:35 +0300 Message-ID: <87ziqx5vn8.fsf@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8BIT Sender: stable-owner@vger.kernel.org List-ID: On Mon, 06 Jun 2016, Lyude Paul wrote: > On Mon, 2016-06-06 at 14:30 +0300, Ville Syrjälä wrote: >> On Thu, May 26, 2016 at 09:54:56AM +0200, Daniel Vetter wrote: >> > >> > Queued for -next, thanks for the patch. >> Looks like this one broke one of the ILKs in CI. >> >> [   13.100979] [drm:ironlake_init_pch_refclk] has_panel 1 has_lvds 1 has_ck505 >> 0 using_ssc_source 1 >> [   13.101413] ------------[ cut here ]------------ >> [   13.101429] kernel BUG at drivers/gpu/drm/i915/intel_display.c:8528! >> >> which is the 'BUG_ON(val != final)' at the end of ironlake_init_pch_refclk(). >> > Managed to find a machine at the office here that I could reproduce this on and > figured out the problem with the patch. Unfortunately, the Optiplex 990 that I > was seeing this issue on already left the office and the person in charge of it > just went on PTO until the end of the week. For the time being don't merge this > patch until I can get access to that machine again and make sure the fixed > version of this patch still works on the 990. I'll send the new version once I'm > able to test it. Daniel already merged it, should we revert? BR, Jani. -- Jani Nikula, Intel Open Source Technology Center