From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753032AbYHSDie (ORCPT ); Mon, 18 Aug 2008 23:38:34 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752579AbYHSDiZ (ORCPT ); Mon, 18 Aug 2008 23:38:25 -0400 Received: from SpacedOut.fries.net ([67.64.210.234]:48454 "EHLO SpacedOut.fries.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752386AbYHSDiY (ORCPT ); Mon, 18 Aug 2008 23:38:24 -0400 Date: Mon, 18 Aug 2008 22:37:11 -0500 From: David Fries To: Ingo Molnar Cc: linux-kernel@vger.kernel.org, "Rafael J. Wysocki" , Pavel Machek , "H. Peter Anvin" , Thomas Gleixner Subject: Re: [PATCH] i486 CR4 oops, no_console_suspend Message-ID: <20080819033710.GD17528@spacedout.fries.net> References: <20080818040340.GB17528@spacedout.fries.net> <20080818064120.GA28941@elte.hu> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20080818064120.GA28941@elte.hu> User-Agent: Mutt/1.5.4i X-Greylist: Sender is SPF-compliant, not delayed by milter-greylist-3.0 (SpacedOut.fries.net [127.0.0.1]); Mon, 18 Aug 2008 22:37:20 -0500 (CDT) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Aug 18, 2008 at 08:41:20AM +0200, Ingo Molnar wrote: > > applied to tip/x86/urgent, thanks David. I've changed the conditions to > read_cr4_safe() instead - that's cleaner. Could you please check whether > the patch below works fine too on your box? Yes the 486 suspends and resumes with this patch. Is there any known problem with no_console_suspend and serial consoles? It worked to print the oops for me to track this down, and Documentation/kernel-parameters.txt says it is known to work with serial consoles, but on resume only kernel messages can output to the serial console. The getty on the serial port can't raed or write and processes trying to write to the port just hang without getting any data across. The serial port works fine across suspends without the no_console_suspend argument. Does anyone else see this? -- David Fries http://fries.net/~david/ (PGP encryption key available)