From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934077AbYBNAb3 (ORCPT ); Wed, 13 Feb 2008 19:31:29 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S934876AbYBNA1M (ORCPT ); Wed, 13 Feb 2008 19:27:12 -0500 Received: from sj-iport-2.cisco.com ([171.71.176.71]:15626 "EHLO sj-iport-2.cisco.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S934779AbYBNA1I (ORCPT ); Wed, 13 Feb 2008 19:27:08 -0500 To: Ingo Molnar Cc: David Miller , linux-kernel@vger.kernel.org Subject: Re: Strange hang on ia64 with CONFIG_PRINTK_TIME=y X-Message-Flag: Warning: May contain useful information References: <20080212.230156.33759433.davem@davemloft.net> <20080213125725.GC6344@elte.hu> <20080213130236.GA8345@elte.hu> From: Roland Dreier Date: Wed, 13 Feb 2008 16:26:46 -0800 In-Reply-To: <20080213130236.GA8345@elte.hu> (Ingo Molnar's message of "Wed, 13 Feb 2008 14:02:36 +0100") Message-ID: User-Agent: Gnus/5.1008 (Gnus v5.10.8) XEmacs/21.4.21 (linux) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-OriginalArrivalTime: 14 Feb 2008 00:26:46.0972 (UTC) FILETIME=[487837C0:01C86EA0] Authentication-Results: sj-dkim-4; header.From=rdreier@cisco.com; dkim=pass ( sig from cisco.com/sjdkim4002 verified; ); Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > > so .. how about the patch below? Note that we already had an "early > > bootup" special (the rq->idle check), it's now just made explicit via > > the scheduler_running flag. > > the one below even builds. (untested otherwise) I just tried this... it doesn't work on top of current git (same behavior: hang before the kernel prints anything). I also tried reverting 19ef9309 on top of a checkout of the tree state at 19ef9309, and that hung before printing anything too. - R.