Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755343Ab0BTNmL (ORCPT ); Sat, 20 Feb 2010 08:42:11 -0500 Received: from mail-yx0-f200.google.com ([209.85.210.200]:51365 "EHLO mail-yx0-f200.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751866Ab0BTNmJ (ORCPT ); Sat, 20 Feb 2010 08:42:09 -0500 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=date:from:to:cc:subject:message-id:references:mime-version :content-type:content-disposition:content-transfer-encoding :in-reply-to:user-agent; b=sDh90T5hU+21wNNBSTT0NJ2E/Iu0mQu2RGhtGW+HKfOaD8gKgoNNhluuc8++tIdYMW Y//B/gUQz22gtUy6ZJ8Le9BFCZEH79NA6Jr6Ju8fJZS10JaqhXJzkY9yjCnFLcWWt4uj +tAnLJsZXpk1vJBnDhwUROQbk3Y2nqB1Q7TaY= Date: Sat, 20 Feb 2010 21:44:47 +0800 From: =?utf-8?Q?Am=C3=A9rico?= Wang To: Johannes Berg Cc: =?utf-8?Q?Am=C3=A9rico?= Wang , Linus Torvalds , Benjamin Herrenschmidt , "linux-kernel@vger.kernel.org" , Ingo Molnar , Peter Zijlstra Subject: Re: [2.6.33-rc5] Weird deadlock when shutting down Message-ID: <20100220134447.GA3000@hack> References: <1264740107.20211.53.camel@pasglop> <1266485775.6539.6.camel@jlt3.sipsolutions.net> <1266518735.3829.4.camel@jlt3.sipsolutions.net> <2375c9f91002192313j3fb84acje4c286c4f86457f3@mail.gmail.com> <1266656213.5347.0.camel@jlt3.sipsolutions.net> <2375c9f91002200106j56b0298ds1a425fde8983d988@mail.gmail.com> <1266665331.12525.0.camel@jlt3.sipsolutions.net> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <1266665331.12525.0.camel@jlt3.sipsolutions.net> User-Agent: Mutt/1.5.19 (2009-01-05) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1020 Lines: 34 On Sat, Feb 20, 2010 at 12:28:51PM +0100, Johannes Berg wrote: >On Sat, 2010-02-20 at 17:06 +0800, Américo Wang wrote: >> On Sat, Feb 20, 2010 at 4:56 PM, Johannes Berg >> wrote: >> > On Sat, 2010-02-20 at 15:13 +0800, Américo Wang wrote: >> > >> >> Does my following untested patch help? >> > >> > Sorry, no. I'll hook up a screen to the box after I return from the >> > fresh market. >> > >> >> Are you sure there is no difference? :-/ > >It deadlocks after > >Disabling non-boot CPUs ... > >Not sure if that counts as a difference... > I am not sure neither... That message is displayed before shutting down the devices. To verify, you can add some printk() in the end of __cpufreq_remove_dev(), or enable CONFIG_CPU_FREQ_DEBUG. Thanks! -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/