Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752754AbbFHIHG (ORCPT ); Mon, 8 Jun 2015 04:07:06 -0400 Received: from mail-pd0-f171.google.com ([209.85.192.171]:33399 "EHLO mail-pd0-f171.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752544AbbFHIG7 (ORCPT ); Mon, 8 Jun 2015 04:06:59 -0400 Message-ID: <1433750815.4364.13.camel@gmail.com> Subject: Re: git pull] drm for v4.1-rc1 From: Ander Conselvan De Oliveira To: Stefan Lippers-Hollmann Cc: Ville =?ISO-8859-1?Q?Syrj=E4l=E4?= , Dave Airlie , Nicolas Kalkhof , Jani Nikula , Daniel Vetter , linux-kernel@vger.kernel.org, DRI mailing list , torvalds@linux-foundation.org Date: Mon, 08 Jun 2015 11:06:55 +0300 In-Reply-To: <20150607043253.12f4058e@mir> References: <20150605231821.6c740f67@mir> <20150606235248.GZ5176@intel.com> <20150607043253.12f4058e@mir> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.12.10 (3.12.10-1.fc21) Mime-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2583 Lines: 65 On Sun, 2015-06-07 at 04:32 +0200, Stefan Lippers-Hollmann wrote: > Hi > > On 2015-06-07, Ville Syrjälä wrote: > > On Fri, Jun 05, 2015 at 11:18:21PM +0200, Stefan Lippers-Hollmann wrote: > > > Hi > > > > > > On 2015-04-20, Dave Airlie wrote: > > > [...] > > > > The following changes since commit 09d51602cf84a1264946711dd4ea0dddbac599a1: > > > > > > > > Merge branch 'turbostat' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux (2015-04-19 14:31:41 -0700) > > > > > > > > are available in the git repository at: > > > > > > > > git://people.freedesktop.org/~airlied/linux drm-next-merged > > > > > > > > for you to fetch changes up to 2c33ce009ca2389dbf0535d0672214d09738e35e: > > > > > > > > Merge Linus master into drm-next (2015-04-20 13:05:20 +1000) > > > [...] > > > > Ander Conselvan de Oliveira (28): > > > [...] > > > > drm/i915: Allocate connector state together with the connectors > > > [...] > > > > > > This commit introduces a regression relative to v4.0 on an Intel > > > D945GCLF2 mainboard[1] (Atom 330) with Intel 82945G/GZ onboard graphics > > > using its (only-) VGA connector for me. > > > > > > v4.1-rc6-52-gff25ea8: > > > [ 13.265699] BUG: unable to handle kernel NULL pointer dereference at 0000000000000010 > > > [ 13.265723] IP: [] intel_modeset_update_connector_atomic_state+0x61/0x90 [i915] > > > > Hmm. Smells like a connector with a NULL state pointer, and the bad > > commit touched exactly the part that sets it up. I can't immediately > > spot any place where we'd forget to set it up though. > > > > Can you try with something like this so we'd at least find out which > > connector(s) is/are at fault here? > > With the patch applied, the kernel (v4.1-rc6-104-g4b17069) locks up even > harder, so I had to switch to a serial console in order to fetch the > boot messages: > > [ 13.492784] connector = ffff880079bb8000 > [ 13.910439] connector = ffff8800795b5800 > [ 14.463114] connector = ffff8800795b6000 > [ 14.700707] connector = ffff8800795b6800 > [ 14.869418] connector = ffff8800795b7000 > [ 14.923848] connector = ffff8800795b7000 > > Full, gzipped, bootlog attached - thanks a lot for your efforts. Could you repeat the process with drm.debug=0xe in your kernel command line and send the logs again? Thanks, Ander -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/