Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754793AbZGUHJx (ORCPT ); Tue, 21 Jul 2009 03:09:53 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751787AbZGUHJw (ORCPT ); Tue, 21 Jul 2009 03:09:52 -0400 Received: from bizon.gios.gov.pl ([195.187.34.71]:39777 "EHLO bizon.gios.gov.pl" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751227AbZGUHJv (ORCPT ); Tue, 21 Jul 2009 03:09:51 -0400 X-Greylist: delayed 1449 seconds by postgrey-1.27 at vger.kernel.org; Tue, 21 Jul 2009 03:09:51 EDT Date: Tue, 21 Jul 2009 08:33:34 +0200 (CEST) From: Krzysztof Oledzki X-X-Sender: ole@bizon.gios.gov.pl To: Linus Torvalds cc: Krzysztof Oledzki , Greg KH , linux-kernel@vger.kernel.org, Andrew Morton , stable@kernel.org, lwn@lwn.net Subject: Re: Linux 2.6.27.27 In-Reply-To: Message-ID: References: <20090720040655.GA11940@kroah.com> <4A645A45.9060509@ans.pl> <20090720151008.GC10015@suse.de> User-Agent: Alpine 1.10 (LNX 962 2008-03-14) MIME-Version: 1.0 Content-Type: MULTIPART/MIXED; BOUNDARY="-1144830174-322226852-1248158015=:29729" Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1634 Lines: 47 This message is in MIME format. The first part should be readable text, while the remaining parts are likely unreadable without MIME-aware tools. ---1144830174-322226852-1248158015=:29729 Content-Type: TEXT/PLAIN; charset=iso-8859-2; format=flowed Content-Transfer-Encoding: 8BIT On Mon, 20 Jul 2009, Linus Torvalds wrote: > > > On Mon, 20 Jul 2009, Krzysztof Oledzki wrote: >> >> No problem. Please let me know what should I do to help tracking this issue. > > Can you build two kernels: one with -fwrapv, and one with > -fno-strict-overflow, and then verify that > > - they are otherwise identical (ie exact same source code, same compiler > etc) > > - verify that yes, the -fwrapv kernel works, the other does not. Just to > avoid the confusion that obviously exists with Debian/sid binutils > upgrades that _also_ happens result in nonbootable kernels. > > - upload the 'vmlinux' images somewhere (I'm not sure what the limits for > binary attachments are at the kernel bugzilla, but that would be the > logical place) > > In fact, it would be nice to have a third "identical" kernel build, except > with neither -fwrapv/-fno-strict-overflow. OK. Right now I'm building the three kernels you asked for (fwrapv/fno-strict-overflow/none). I'll test them and upload vmlinux images. Best regards, Krzysztof Ol?dzki ---1144830174-322226852-1248158015=:29729-- -- 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/