From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752943AbdDDIOz (ORCPT ); Tue, 4 Apr 2017 04:14:55 -0400 Received: from metis.ext.4.pengutronix.de ([92.198.50.35]:42427 "EHLO metis.ext.4.pengutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751022AbdDDIOx (ORCPT ); Tue, 4 Apr 2017 04:14:53 -0400 Message-ID: <1491293691.2996.2.camel@pengutronix.de> Subject: Re: imx-drm: vblank wait timed out From: Philipp Zabel To: Christian Gmeiner Cc: LKML , DRI mailing list Date: Tue, 04 Apr 2017 10:14:51 +0200 In-Reply-To: References: <1490965043.2371.58.camel@pengutronix.de> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.12.9-1+b1 Mime-Version: 1.0 Content-Transfer-Encoding: 7bit X-SA-Exim-Connect-IP: 2001:67c:670:100:3ad5:47ff:feaf:1a17 X-SA-Exim-Mail-From: p.zabel@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-kernel@vger.kernel.org Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Christian, On Mon, 2017-04-03 at 17:16 +0200, Christian Gmeiner wrote: > 2017-03-31 14:57 GMT+02:00 Philipp Zabel : > > Hi Christian, > > > > On Fri, 2017-03-31 at 12:44 +0200, Christian Gmeiner wrote: > >> Hi > >> > >> I get this from time to time on a 4.9.17 kernel: > >> > >> [ 3.353387] ------------[ cut here ]------------ > >> [ 3.353408] WARNING: CPU: 0 PID: 1 at > >> drivers/gpu/drm/drm_atomic_helper.c:1140 > >> drm_atomic_helper_wait_for_vblanks+0x240/0x244 > >> [ 3.353412] [CRTC:24] vblank wait timed out > > [...] > > > > Do the four patches in > > git://git.pengutronix.de/git/pza/linux.git tags/v4.9-ipu-dp-plane-fix > > fix this? > > > > Sadly no - this is what I get after a warm-reboot: Is this on a non-plus i.MX6? Maybe are missing the LDB DI clock glitch fixes (commits 5d283b083800, 03d576f202e8, and f13abeff2cde)? regards Philipp