From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752762AbcLFNbV (ORCPT ); Tue, 6 Dec 2016 08:31:21 -0500 Received: from mx5-phx2.redhat.com ([209.132.183.37]:54191 "EHLO mx5-phx2.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751064AbcLFNbU (ORCPT ); Tue, 6 Dec 2016 08:31:20 -0500 Date: Tue, 6 Dec 2016 08:31:01 -0500 (EST) From: Jan Stancek To: linux-kernel@vger.kernel.org Cc: torvalds@linux-foundation.org, kilobyte@angband.pl, arnd@arndb.de Message-ID: <656276734.2322009.1481031061742.JavaMail.zimbra@redhat.com> In-Reply-To: <2124400518.2319293.1481030523351.JavaMail.zimbra@redhat.com> Subject: unable to load modules with CONFIG_MODVERSIONS=y after commit 8ab2ae655b MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-Originating-IP: [10.34.249.8] X-Mailer: Zimbra 8.0.6_GA_5922 (ZimbraWebClient - FF45 (Linux)/8.0.6_GA_5922) Thread-Topic: unable to load modules with CONFIG_MODVERSIONS=y after commit 8ab2ae655b Thread-Index: H07vO4nLnBBp8wDgyu93Co6idYZ6dQ== Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, Starting with 4.9-rc8 / commit 8ab2ae655b ("default exported asm symbols to zero") I'm running into issue with kernel built with CONFIG_MODVERSIONS=y and (older) binutils (binutils-2.25.1-20.base.el7.ppc64le). Modules fail to load, for example: [ 3.163646] Found checksum 0 vs module 4829A47E [ 3.163787] dm_mod: disagrees about version of symbol memcpy [ 3.163862] dm_mod: Unknown symbol memcpy (err -22) Bisect led me to 8ab2ae655b, reverting it allows boot to progress as before. Regards, Jan