Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755683AbYHYUpo (ORCPT ); Mon, 25 Aug 2008 16:45:44 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753078AbYHYUpf (ORCPT ); Mon, 25 Aug 2008 16:45:35 -0400 Received: from mga05.intel.com ([192.55.52.89]:65265 "EHLO fmsmga101.fm.intel.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1752308AbYHYUpf (ORCPT ); Mon, 25 Aug 2008 16:45:35 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.32,266,1217833200"; d="scan'208";a="609568341" Message-ID: <48B319E6.3080508@linux.intel.com> Date: Mon, 25 Aug 2008 13:45:26 -0700 From: Arjan van de Ven User-Agent: Thunderbird 2.0.0.16 (Windows/20080708) MIME-Version: 1.0 To: Linus Torvalds CC: "Alan D. Brunelle" , "Rafael J. Wysocki" , Linux Kernel Mailing List , Kernel Testers List , Andrew Morton , Rusty Russell Subject: Re: [Bug #11342] Linux 2.6.27-rc3: kernel BUG at mm/vmalloc.c - bisected References: <48B29F7B.6080405@hp.com> <48B2A421.7080705@hp.com> <48B313E0.1000501@hp.com> In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 965 Lines: 24 Linus Torvalds wrote: > On Mon, 25 Aug 2008, Alan D. Brunelle wrote: >> Mine has: >> >> Dump of assembler code for function sys_init_module: >> 0xffffffff802688c4 : sub $0x1c0,%rsp >> >> so 448 bytes. > > Yeah, your build seems to have consistently bigger stack usage, and that > may be due to some config option, but most likely it's a compiler version > issue. > I wonder if we ought to have a light version of "make checkstack" always run, but in such a way that we make a file with "limits" on the stack usage for key functions (and we can grow this list over time when we learn about critical ones).. and either warn very loudly or even fail the build if we're way over what could work. -- 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/