From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from e06smtp11.uk.ibm.com ([195.75.94.107]:55808 "EHLO e06smtp11.uk.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751833AbbFHIjh (ORCPT ); Mon, 8 Jun 2015 04:39:37 -0400 Received: from /spool/local by e06smtp11.uk.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Mon, 8 Jun 2015 09:39:35 +0100 Received: from b06cxnps4074.portsmouth.uk.ibm.com (d06relay11.portsmouth.uk.ibm.com [9.149.109.196]) by d06dlp01.portsmouth.uk.ibm.com (Postfix) with ESMTP id 22BDA17D805A for ; Mon, 8 Jun 2015 09:40:34 +0100 (BST) Received: from d06av10.portsmouth.uk.ibm.com (d06av10.portsmouth.uk.ibm.com [9.149.37.251]) by b06cxnps4074.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id t588dX0f25034990 for ; Mon, 8 Jun 2015 08:39:33 GMT Received: from d06av10.portsmouth.uk.ibm.com (localhost [127.0.0.1]) by d06av10.portsmouth.uk.ibm.com (8.14.4/8.14.4/NCO v10.0 AVout) with ESMTP id t588dWca032564 for ; Mon, 8 Jun 2015 02:39:33 -0600 Date: Mon, 8 Jun 2015 10:39:29 +0200 From: Greg Kurz To: Michael Ellerman Cc: stable@vger.kernel.org, Sam Bobroff Subject: Re: backport "powerpc/powernv: Restore non-volatile CRs after nap" to stable Message-ID: <20150608103929.750f4a8e@bahia.local> In-Reply-To: <1433668123.20134.1.camel@ellerman.id.au> References: <20150603192151.7bb371bc@bahia.local> <1433668123.20134.1.camel@ellerman.id.au> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: stable-owner@vger.kernel.org List-ID: On Sun, 07 Jun 2015 19:08:43 +1000 Michael Ellerman wrote: > On Wed, 2015-06-03 at 19:21 +0200, Greg Kurz wrote: > > Hi, > > > > Please consider backporting the following upstream commit: > > Hi Greg, > > The stable folks don't take requests for backports, they just take > backports that you've done for them :) > > I also don't take requests for backports, because I'm too busy! :) > > So if you're hitting this then you should do the backport and send it to > stable@vger.kernel.org and CC me and Sam (the original author). > > cheers > Hi Michael, Since the patch is already in Linus's tree and applies flawlessly on 3.19 and 4.0, I did as explained in Documentation/stable_kernel_rules.txt: --- Option 2 --- After the patch has been merged to Linus' tree, send an email to stable@vger.kernel.org containing the subject of the patch, the commit ID, why you think it should be applied, and what kernel version you wish it to be applied to. I guess the confusion comes from the "backport" word, where "apply" would have been more appropriate. Stable folks, Please apply the following upstream commit to 3.19 and 4.0 stable trees: commit 0aab3747091db309b8a484cfd382a41644552aa3 Author: Sam Bobroff Date: Fri May 1 16:50:34 2015 +1000 powerpc/powernv: Restore non-volatile CRs after nap It fixes guest hangs on POWER7 platforms that were introduced in 3.19 by the following commits: 7cba160ad789 ("powernv/cpuidle: Redesign idle states management") 77b54e9f213f ("powernv/powerpc: Add winkle support for offline cpus") Thanks. -- Greg