From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933425AbXCTJfc (ORCPT ); Tue, 20 Mar 2007 05:35:32 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S933454AbXCTJfc (ORCPT ); Tue, 20 Mar 2007 05:35:32 -0400 Received: from main.gmane.org ([80.91.229.2]:46514 "EHLO ciao.gmane.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933425AbXCTJfb (ORCPT ); Tue, 20 Mar 2007 05:35:31 -0400 X-Injected-Via-Gmane: http://gmane.org/ To: linux-kernel@vger.kernel.org From: Marcus Better Subject: Re: [PATCH] clockevents: Fix suspend/resume to disk hangs Date: Tue, 20 Mar 2007 10:35:13 +0100 Message-ID: References: <200703162134.14265.rjw@sisk.pl> <1174078066.13341.279.camel@localhost.localdomain> <1174087552.13341.332.camel@localhost.localdomain> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7Bit X-Complaints-To: usenet@sea.gmane.org X-Gmane-NNTP-Posting-Host: 67.152.216.81.static.g-va.siw.siwnet.net User-Agent: KNode/0.10.4 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Thomas Gleixner wrote: > I finally found a dual core box, which survives suspend/resume without > crashing in the middle of nowhere. Sigh, I never figured out from the > code and the bug reports what's going on. > > The observed hangs are caused by a stale state transition of the clock > event devices, which keeps the RCU synchronization away from completion, > when the non boot CPU is brought back up. This didn't fix the suspend problems on my Thinkpad R60. (Sorry for nagging - please let me know if I can assist in debugging this...) Marcus