From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1761954AbYDZVGs (ORCPT ); Sat, 26 Apr 2008 17:06:48 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1758009AbYDZVGi (ORCPT ); Sat, 26 Apr 2008 17:06:38 -0400 Received: from rv-out-0708.google.com ([209.85.198.248]:23948 "EHLO rv-out-0506.google.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1753881AbYDZVGh (ORCPT ); Sat, 26 Apr 2008 17:06:37 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:sender:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references:x-google-sender-auth; b=QrtDNeKLG2/C17b9XsuQa5kXQcHPJwDEuw3GbiRBpq3/ayiISTG64ey+reEHnqC+KUm+j/dCH03bG/7ssHE3OcT5qMH2rG/4QtWLZKHdGI/zCtQ2LRofsYSBenwguDTiKhdUt9E/v7D28ZNvSkFsoN8JrxsUce9+8RZXuiWFh7g= Message-ID: Date: Sat, 26 Apr 2008 17:06:35 -0400 From: "Bob Copeland" To: "Ingo Molnar" Subject: Re: spinlock lockup on CPU#0 Cc: "Andrew Morton" , "Justin Mattock" , "Linux Kernel Mailing List" , "Venkatesh Pallipadi" In-Reply-To: <20080426191432.GA2927@elte.hu> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <20080426112907.77613dee.akpm@linux-foundation.org> <20080426191432.GA2927@elte.hu> X-Google-Sender-Auth: 97aac2e4f39b5ae8 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sat, Apr 26, 2008 at 3:14 PM, Ingo Molnar wrote: > > Can you add this please, see if it triggers? > > there's fixes pending in this area. The main fix would be the one below. > > Ingo > > ----------------> > Subject: idle (arch, acpi and apm) and lockdep FWIW, I was seeing the same lockdep trace with eventual hangs, and this patch (applied with some fuzz) fixed the problem. -- Bob Copeland %% www.bobcopeland.com