From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-1.1 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0EEDEC04AA7 for ; Tue, 14 May 2019 00:15:32 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id CF50121537 for ; Tue, 14 May 2019 00:15:31 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=canb.auug.org.au header.i=@canb.auug.org.au header.b="Zkuwnwu4" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726794AbfENAPa (ORCPT ); Mon, 13 May 2019 20:15:30 -0400 Received: from bilbo.ozlabs.org ([203.11.71.1]:55695 "EHLO ozlabs.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726541AbfENAPa (ORCPT ); Mon, 13 May 2019 20:15:30 -0400 Received: from authenticated.ozlabs.org (localhost [127.0.0.1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (P-256) server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by mail.ozlabs.org (Postfix) with ESMTPSA id 452yrG4nxCz9s5c; Tue, 14 May 2019 10:15:26 +1000 (AEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=canb.auug.org.au; s=201702; t=1557792927; bh=Ju2KVg9gRdQiFgMiTbNmDphCWR7FUhZJIv9FZ8DHNPI=; h=Date:From:To:Cc:Subject:From; b=Zkuwnwu4tf2hR09XjfJcH2vxmW9yMJpaRUdEm7/IbPSVjiEIidqOHlLCo79+aafby pgVr7UMWASdbFavxN2AtovsuX3JjaXGMEhZ2pRmkrsixGd0Fwr8rbzbNDlds2BwEbv nqwpDAV8Ifm4nmBys25ae1rj0355vq6BHt2oT7DncKGqg68BDuacpdE7h+waiMDMUr rKMrofJTi91uaO3sQj21M/GRlUw7q7Bf7KZbRLpr6zLKyMF8q+GC6jJrDdcCcvSwVq KP5TaTf10x0yVcka5enbyHxEkDeqrK2y3g26SzEjGLt1nCdP68sGytOBSAN20jgcDo lAAOFx/ibfVUA== Date: Tue, 14 May 2019 10:15:18 +1000 From: Stephen Rothwell To: Masahiro Yamada Cc: Tyler Hicks , Linux Next Mailing List , Linux Kernel Mailing List Subject: linux-next: build failure after merge of the ecryptfs tree Message-ID: <20190514100910.6996d2f5@canb.auug.org.au> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; boundary="Sig_/GsNMvU2qEo9mMflr5OjEJ0k"; protocol="application/pgp-signature" Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --Sig_/GsNMvU2qEo9mMflr5OjEJ0k Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable Hi all, I don't know why this suddenly appeared after mergeing the ecryptfs tree since nothin has changed in that tree for some time (and nothing in that tree seems relevant). After merging the ecryptfs tree, today's linux-next build (x86_64 allmodconfig) failed like this: scripts/Makefile.modpost:112: target '.tmp_versions/asix.mod' doesn't match= the target pattern scripts/Makefile.modpost:113: warning: overriding recipe for target '.tmp_v= ersions/asix.mod' scripts/Makefile.modpost:100: warning: ignoring old recipe for target '.tmp= _versions/asix.mod' scripts/Makefile.modpost:127: target '.tmp_versions/asix.mod' doesn't match= the target pattern scripts/Makefile.modpost:128: warning: overriding recipe for target '.tmp_v= ersions/asix.mod' scripts/Makefile.modpost:113: warning: ignoring old recipe for target '.tmp= _versions/asix.mod' make[2]: Circular .tmp_versions/asix.mod <- __modpost dependency dropped. Binary file .tmp_versions/asix.mod matches: No such file or directory make[2]: *** [scripts/Makefile.modpost:91: __modpost] Error 1 make[1]: *** [Makefile:1290: modules] Error 2 The only clue I can see is that asix.o gets built in two separate directories (drivers/net/{phy,usb}). I have the following files in the object directory: ./.tmp_versions/asix.mod ./drivers/net/usb/asix.ko ./drivers/net/usb/asix.mod.o ./drivers/net/usb/asix.o ./drivers/net/usb/asix_common.o ./drivers/net/usb/asix_devices.o ./drivers/net/usb/.asix.ko.cmd ./drivers/net/usb/.asix.mod.o.cmd ./drivers/net/usb/.asix.o.cmd ./drivers/net/usb/asix.mod.c ./drivers/net/usb/.asix_common.o.cmd ./drivers/net/usb/.asix_devices.o.cmd ./drivers/net/phy/asix.ko ./drivers/net/phy/asix.o ./drivers/net/phy/.asix.ko.cmd ./drivers/net/phy/.asix.mod.o.cmd ./drivers/net/phy/asix.mod.o ./drivers/net/phy/asix.mod.c ./drivers/net/phy/.asix.o.cmd ./.tmp_versions/asix.mod Looks like this: ------------------------------------------ drivers/net/phy/asix.ko drivers/net/phy/asix.o ------------------------------------------ What you can't see above are the 256 NUL bytes at the end of the file (followed by a NL). This is from a -j 80 build. Surely there is a race condition here if the file in .tmp_versions is only named for the base name of the module and we have 2 modules with the same base name. I removed that file and redid the build and it succeeded. Mind you, I have no itdea why this file was begin rebuilt, the merge only touched these files: fs/ecryptfs/crypto.c fs/ecryptfs/keystore.c Puzzled ... :-( --=20 Cheers, Stephen Rothwell --Sig_/GsNMvU2qEo9mMflr5OjEJ0k Content-Type: application/pgp-signature Content-Description: OpenPGP digital signature -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEENIC96giZ81tWdLgKAVBC80lX0GwFAlzaCJYACgkQAVBC80lX 0GwlwQf9Gj9wz73uyo5re6z+nQHohC1vGzloekz15OIqF5RmdKpSqIF99rFJYE2k 1O6LUj+zVLOPN2h6NBFMX7XHRw4I5h7IXPp7VVTiVcptnsalQ12Ehjv9N+tZaNII PMX6oZdNDAG9GtwShSKuUGHLMiFVvhf1TNyDfmCSRT72KytN6/eYchSDkqGNOBUi rSu2+4aytF6UE8WHcf7EUmG0kfoN3bUCsKvrQe3KyHyo+b9fcbI9Fsisv/rUuI6m Q8NRE25pzrL49YFLiZG506gyUBsorBHdT1wp+Qo1A1MtHwI2439Zuv5el7QLSVll jsaBXyrZvpJ/3dC6UFwJza/3vx1fag== =Cwco -----END PGP SIGNATURE----- --Sig_/GsNMvU2qEo9mMflr5OjEJ0k--