From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756496AbbLBU5s (ORCPT ); Wed, 2 Dec 2015 15:57:48 -0500 Received: from mail.linuxfoundation.org ([140.211.169.12]:35958 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752561AbbLBU5p (ORCPT ); Wed, 2 Dec 2015 15:57:45 -0500 Date: Wed, 2 Dec 2015 12:57:45 -0800 From: Greg Kroah-Hartman To: John Stultz , martin.wilck@ts.fujitsu.com Cc: Uwe =?iso-8859-1?Q?Kleine-K=F6nig?= , lkml Subject: Re: [REGRESSION] b8b2c7d845 breaks suspend/resume in qemu Message-ID: <20151202205745.GA28256@kroah.com> References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.24 (2015-08-30) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Dec 02, 2015 at 12:46:10PM -0800, John Stultz wrote: > On Wed, Dec 2, 2015 at 12:39 PM, John Stultz wrote: > > Hey Uwe, > > > > So I recently noticed that my alarmtimer suspend/resume tests > > (selftests/timers/alartimer-suspend.c) were getting stuck testing w/ > > 4.4-rc kernels when running under qemu (x86_64). > > > > I've bisected this back to: b8b2c7d845 (base/platform: assert that > > dev_pm_domain callbacks are called unconditionally). > > > > I've not yet spent done any further analysis (bisecting it down, after > > some user-error, ate up my morning). But I wanted to see if there were > > any initial suggestions for solving this. > > Just one other quick note: Reverting this commit against 4.4-rc3 seems > to work as well. There's a proposed patch to resolve this on the mailing list, "Subject: [PATCH] base/platform: fix panic when probe function is NULL" from Martin, but I think he's going to send me an updated version before I forward it on to Linus. It should resolve your issue, can you verify that? thanks, greg k-h