Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753694Ab3ISVUa (ORCPT ); Thu, 19 Sep 2013 17:20:30 -0400 Received: from mail-lb0-f175.google.com ([209.85.217.175]:34158 "EHLO mail-lb0-f175.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752734Ab3ISVU2 (ORCPT ); Thu, 19 Sep 2013 17:20:28 -0400 MIME-Version: 1.0 In-Reply-To: References: <20130919201058.GD32145@phenom.ffwll.local> Date: Fri, 20 Sep 2013 07:20:27 +1000 Message-ID: Subject: Re: Regression: bisected: commit 7c510133d93 breaks video From: Dave Airlie To: Paul Zimmerman Cc: "intel-gfx@lists.freedesktop.org" , "dri-devel@lists.freedesktop.org" , "linux-kernel@vger.kernel.org" , "daniel.vetter@ffwll.ch" 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: 2959 Lines: 74 On Fri, Sep 20, 2013 at 7:13 AM, Paul Zimmerman wrote: >> From: Dave Airlie [mailto:airlied@gmail.com] >> Sent: Thursday, September 19, 2013 1:15 PM >> >> On Fri, Sep 20, 2013 at 6:10 AM, Daniel Vetter wrote: >> > On Thu, Sep 19, 2013 at 06:32:47PM +0000, Paul Zimmerman wrote: >> >> > From: Paul Zimmerman >> >> > Sent: Thursday, September 19, 2013 11:21 AM >> >> > >> >> > > From: Dave Airlie [mailto:airlied@gmail.com] >> >> > > Sent: Wednesday, September 18, 2013 7:40 PM >> >> > > >> >> > > On Thu, Sep 19, 2013 at 12:02 PM, Paul Zimmerman >> >> > > wrote: >> >> > > > I have an ASUS P6X58D-Premium mobo with a GeForce 9400GT PCIe video card. >> >> > > > With kernel 3.12-rc1, I get scrambled video on boot. Kernel 3.11 works >> >> > > > fine. >> >> > > > >> >> > > > Bisecting this, I found 7c510133d93dd6f15ca040733ba7b2891ed61fd1 "drm: >> >> > > > mark context support as a legacy subsystem" is the guilty commit. If I >> >> > > > revert that commit, the video works fine. >> >> > > > >> >> > > > Is there any more info I can provide? >> >> > > >> >> > > Full dmesg, and what driver you are using. >> >> > >> >> > Driver is nouveau. >> >> > >> >> > The dmesg from a good boot with the commit reverted is attached. >> >> > >> >> > For the bad boot, the dmesg log is filled with messages like this: >> >> > >> >> > [ 15.871667] nouveau E[ PFB][0000:03:00.0] trapped write at 0x01010010a0 on channel >> 0x0001fed0 >> >> > [unknown] BAR/PFIFO_WRITE/IN reason: PAGE_NOT_PRESENT >> >> > [ 15.871698] nouveau E[ PFB][0000:03:00.0] trapped write at 0x010100b2e0 on channel >> 0x0001fed0 >> >> > [unknown] BAR/PFIFO_WRITE/IN reason: PAGE_NOT_PRESENT >> >> > [ 15.871781] nouveau E[ PFB][0000:03:00.0] trapped write at 0x0101011600 on channel >> 0x0001fed0 >> >> > [unknown] BAR/PFIFO_WRITE/IN reason: PAGE_NOT_PRESENT >> >> > >> >> > I will try next with the patch series you sent to Linus yesterday, to >> >> > see if that happens to fix this. >> >> >> >> Nope, with your patch series from yesterday the problem still exists. >> > >> > Just to double-check: Does the revert still work, even on latest upstream >> > git + Dave's pull request? >> >> Also what versions of userspace have you got, libdrm + >> xf86-video-nouveau and mesa? > > Yes, the revert still works. > > I have pretty old userspace, Fedora 14. > > libdrm is 2.4.22-1.fc14, mesa is 7.9-5.fc14. > > I don't have xf86-video-nouveau, I have > xorg-x11-drv-nouveau.x86_64 1:0.0.16-14.20101010git8c8f15c.fc14 Okay it all makes sense now! I'll revert the patch upstream then, older nouveau userspace used contexts, for what reason I've no idea :-) Dave. -- 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/