From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752413AbbCVXwi (ORCPT ); Sun, 22 Mar 2015 19:52:38 -0400 Received: from ozlabs.org ([103.22.144.67]:40703 "EHLO ozlabs.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751964AbbCVXwe (ORCPT ); Sun, 22 Mar 2015 19:52:34 -0400 Message-ID: <1427068352.25048.0.camel@ellerman.id.au> Subject: Re: [REGRESSION in 3.18][PPC] PA Semi fails to boot after: of/base: Fix PowerPC address parsing hack From: Michael Ellerman To: Olof Johansson Cc: Steven Rostedt , Grant Likely , Rob Herring , linuxppc-dev , LKML , Benjamin Herrenschmidt Date: Mon, 23 Mar 2015 10:52:32 +1100 In-Reply-To: References: <20150305171239.3a8135e6@gandalf.local.home> <1425615522.4636.173.camel@kernel.crashing.org> <20150306100021.5637d790@gandalf.local.home> <1425682582.4636.197.camel@kernel.crashing.org> <1425700921.4636.213.camel@kernel.crashing.org> <1425947283.19022.8.camel@ellerman.id.au> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.12.10-0ubuntu1~14.10.1 Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, 2015-03-09 at 17:33 -0700, Olof Johansson wrote: > On Mon, Mar 9, 2015 at 5:28 PM, Michael Ellerman wrote: > > On Sat, 2015-03-07 at 15:02 +1100, Benjamin Herrenschmidt wrote: > >> On Fri, 2015-03-06 at 15:50 -0800, Olof Johansson wrote: > >> > On Fri, Mar 6, 2015 at 2:56 PM, Benjamin Herrenschmidt > >> > wrote: > >> > > On Fri, 2015-03-06 at 10:00 -0500, Steven Rostedt wrote: > >> > >> On Fri, 06 Mar 2015 15:18:42 +1100 > >> > >> Benjamin Herrenschmidt wrote: > >> > >> > >> > >> > >> > >> > Can you shoot me the DT (/proc/device-tree in a tarball) ? > >> > >> > >> > >> Attached. > >> > > > >> > > This is indeed a bug in their DT. We might want to add quirks for > >> > > that unless it can be fixed (or has been via FW update). Olof ? > >> > > >> > FW updates on this platform are highly unlikely. Quirk it is. > >> > >> Oh I was not expecting a new FW, I was mostly wondering whether Steven > >> had the latest one since I *think* Michael has been testing with the > >> PA board we got here and didn't see that problem ... anyway, I'll check > >> with him early next week and clean up / submit that patch. > > > > Yeah I have been testing semi-regularly. > > > > 4.0-rc2 boots fine on mine. > > > > But mine is an Athena, Steve's is an Electra. So they're not identical. > > I have a chitra in my boot farm, so I run every build I do on it. I > have not hit it either, which confused me. > > Turns out that Steven's machine boots with idle=doze, which is the > part that makes all the difference. Aha, that is the key. So mine also crashes with idle=doze, even with the newer firmware. So we'll have to fix this with the quirk in the kernel. cheers