Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753253AbaFXL6I (ORCPT ); Tue, 24 Jun 2014 07:58:08 -0400 Received: from mail.fireflyinternet.com ([87.106.93.118]:50421 "EHLO fireflyinternet.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1752392AbaFXL6G (ORCPT ); Tue, 24 Jun 2014 07:58:06 -0400 X-Default-Received-SPF: pass (skip=forwardok (res=PASS)) x-ip-name=78.156.65.138; Date: Tue, 24 Jun 2014 12:57:53 +0100 From: Chris Wilson To: Jani Nikula Cc: Thomas Meyer , Linus Torvalds , "intel-gfx@lists.freedesktop.org" , Linux Kernel Mailing List Subject: Re: [Intel-gfx] Linux 3.16-rc2 Message-ID: <20140624115753.GD17674@nuc-i3427.alporthouse.com> Mail-Followup-To: Chris Wilson , Jani Nikula , Thomas Meyer , Linus Torvalds , "intel-gfx@lists.freedesktop.org" , Linux Kernel Mailing List References: <1403564870.3091.6.camel@localhost.localdomain> <871tuea7nz.fsf@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <871tuea7nz.fsf@intel.com> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Jun 24, 2014 at 02:06:24PM +0300, Jani Nikula wrote: > On Tue, 24 Jun 2014, Thomas Meyer wrote: > > the i915 driver is still broken in 3.16-rc2. Resume from ram crashes the > > X server. > > This is not new to 3.16-rc2; apparently we've had it since v3.15-rc4 > [1]. Also related [2]. > > Chris, any fresh ideas? Nope. The bug is https://bugs.freedesktop.org/show_bug.cgi?id=76554 everything we know and have tried is there. Which is not much more than at time of the original incarnation: commit 50aa253d820ad4577e2231202f2c8fd89f9dc4e6 Author: Keith Packard Date: Tue Oct 14 17:20:35 2008 -0700 i915: Fix up ring initialization to cover G45 oddities G45 appears quite sensitive to ring initialization register writes, sometimes leaving the HEAD register with the START register contents. Check to make sure HEAD is reset correctly when START is written, and fix it up, screaming loudly. -Chris -- Chris Wilson, Intel Open Source Technology Centre -- 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/