From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757108AbYEAAYr (ORCPT ); Wed, 30 Apr 2008 20:24:47 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932481AbYEAAYc (ORCPT ); Wed, 30 Apr 2008 20:24:32 -0400 Received: from simmts12-qfe0.srvr.bell.ca ([206.47.199.141]:41704 "EHLO simmts12-srv.bellnexxia.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932365AbYEAAYa (ORCPT ); Wed, 30 Apr 2008 20:24:30 -0400 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AqEBALqqGEicIvo8/2dsb2JhbAAIimiibQ Message-ID: <48190DBB.9020102@gmail.com> Date: Wed, 30 Apr 2008 21:24:27 -0300 From: Kevin Winchester User-Agent: Thunderbird 2.0.0.12 (X11/20080227) MIME-Version: 1.0 To: Arjan van de Ven CC: Linux Kernel Mailing List , Ingo Molnar Subject: Re: linux-next: WARNING: at kernel/panic.c:375 __stack_chk_test+0x50/0x54() References: <4819078C.9080405@gmail.com> <48190844.5080804@linux.intel.com> In-Reply-To: <48190844.5080804@linux.intel.com> 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 Arjan van de Ven wrote: > Kevin Winchester wrote: >> Hi Arjan, >> >> There doesn't seem to be an entry in MAINTAINERS for stack protector, >> but your signoff was on the last stack protector related commit I could >> find, so it's probably a good bet. >> >> I get the following in my dmesg after testing linux-next with the stack >> protector turned on. This is an x86-64 UP box if that helps. It >> appears to be related to the test for the feature (or perhaps that is >> supposed to happen when the feature is tested, I'm not sure...). Config >> below. >> > > the important question is: exactly what gcc are you using? (and if you use a distro gcc, > which distro) > > second question would be, what does the following command give? > > echo "int foo(void) { char X[200]; return 3; }" | $1 -S -xc -c -O0 -mcmodel=kernel -fstack-protector - -o - > > (this is the command from scripts/gcc-x86_64-has-stack-protector.sh that the kernel uses to test at compiletime > if you have stack protector support) Ubuntu Hardy Heron kevin@alekhine:~$ gcc --version gcc (GCC) 4.2.3 (Ubuntu 4.2.3-2ubuntu7) Copyright (C) 2007 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. kevin@alekhine:~$ echo "int foo(void) { char X[200]; return 3; }" | $1 -S -xc -c -O0 -mcmodel=kernel -fstack-protector - -o - bash: -S: command not found I assume that $1 was supposed to be gcc, so how about: kevin@alekhine:~/linux/linux-2.6/scripts$ sh gcc-x86_64-has-stack-protector.sh gcc something something So I would assume that means I pass... Does that help at all? -- Kevin Winchester