Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753804Ab3CRPkX (ORCPT ); Mon, 18 Mar 2013 11:40:23 -0400 Received: from mail-ia0-f177.google.com ([209.85.210.177]:35479 "EHLO mail-ia0-f177.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752598Ab3CRPkV (ORCPT ); Mon, 18 Mar 2013 11:40:21 -0400 MIME-Version: 1.0 X-Originating-IP: [178.83.130.250] In-Reply-To: References: Date: Mon, 18 Mar 2013 16:40:20 +0100 Message-ID: Subject: Re: Revert a bunch of patches in stable kernels From: Daniel Vetter To: stable , Greg KH Cc: dri-devel , Linux Kernel Mailing List , intel-gfx , Dave Airlie Content-Type: text/plain; charset=ISO-8859-1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1758 Lines: 52 On Mon, Mar 18, 2013 at 11:05 AM, Daniel Vetter wrote: > Hi Greg&all, > > So a recent stable backport to fix rc6 on ilk (which is disabled by > default and with dubious power savings at best, unlike rc6 on snb and > later) totally blew up all over the place: > https://bugzilla.kernel.org/show_bug.cgi?id=55291 > https://lkml.org/lkml/2013/3/14/540 This likely also is the culprit behind the ghost vga issues reported on gm45, e.g: https://bugzilla.redhat.com/show_bug.cgi?id=922304 Again, fixed in 3.9-rc kernels by commit 20afbda209d708be66944907966486d0c1331cb8 Author: Daniel Vetter Date: Tue Dec 11 14:05:07 2012 +0100 drm/i915: Fixup hpd irq register setup ordering Cheers, Daniel > There might be more, I'm still recovering from mail floods due to > traveling last week. I think the right course of action is to revert > the offending patch (plus anything depending upon it) and give up on > rc6 on ilk in 3.8 - too messy. All bug reports confirmed that 3.9-rc > kernels work as expected. Upstream commits to revert: > > 15239099d7a7a9ecdc1ccb5b187ae4cda5488ff9 drm/i915: enable irqs earlier > when resuming > 52d7ecedac3f96fb562cb482c139015372728638 drm/i915: reorder setup > sequence to have irqs for output setup > > Cheers, Daniel > -- > Daniel Vetter > Software Engineer, Intel Corporation > +41 (0) 79 365 57 48 - http://blog.ffwll.ch -- Daniel Vetter Software Engineer, Intel Corporation +41 (0) 79 365 57 48 - http://blog.ffwll.ch -- 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/