From owner-freebsd-arch@FreeBSD.ORG Sat Feb 9 10:51:19 2008 Return-Path: Delivered-To: arch@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 6DB2816A417; Sat, 9 Feb 2008 10:51:19 +0000 (UTC) (envelope-from des@des.no) Received: from tim.des.no (tim.des.no [194.63.250.121]) by mx1.freebsd.org (Postfix) with ESMTP id 3116913C455; Sat, 9 Feb 2008 10:51:18 +0000 (UTC) (envelope-from des@des.no) Received: from tim.des.no (localhost [127.0.0.1]) by spam.des.no (Postfix) with ESMTP id D8CFF2085; Sat, 9 Feb 2008 11:51:09 +0100 (CET) X-Spam-Tests: AWL X-Spam-Learn: disabled X-Spam-Score: -0.3/3.0 X-Spam-Checker-Version: SpamAssassin 3.2.3 (2007-08-08) on tim.des.no Received: from ds4.des.no (des.no [80.203.243.180]) by smtp.des.no (Postfix) with ESMTP id C0EA12084; Sat, 9 Feb 2008 11:51:09 +0100 (CET) Received: by ds4.des.no (Postfix, from userid 1001) id 9BB01844C2; Sat, 9 Feb 2008 11:51:09 +0100 (CET) From: =?utf-8?Q?Dag-Erling_Sm=C3=B8rgrav?= To: John Baldwin References: <200802081802.54313.jhb@freebsd.org> Date: Sat, 09 Feb 2008 11:51:09 +0100 In-Reply-To: <200802081802.54313.jhb@freebsd.org> (John Baldwin's message of "Fri\, 8 Feb 2008 18\:02\:54 -0500") Message-ID: <86sl02e736.fsf@ds4.des.no> User-Agent: Gnus/5.110006 (No Gnus v0.6) Emacs/22.1 (berkeley-unix) MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Cc: arch@freebsd.org Subject: Re: [PATCH] Automatic kernel version module dependencies.. X-BeenThere: freebsd-arch@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussion related to FreeBSD architecture List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 09 Feb 2008 10:51:19 -0000 John Baldwin writes: > So one of the things that people run into periodically are problems > with mismatched kernels and modules. My understanding of our kernel > module ABI compatibility is that if you build a module on in a X.Y > build environment the module should work fine for all kernels with > version X.Z where Z >=3D Y. ...provided they were built from the same config... I think MUTEX_PROFILING has been fixed, but there may still be cases where the ABI changes dependening on kernel options. DES --=20 Dag-Erling Sm=C3=B8rgrav - des@des.no