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=-3.9 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=no 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 6AD11C433E1 for ; Tue, 25 Aug 2020 03:04:57 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 46B2D206EB for ; Tue, 25 Aug 2020 03:04:57 +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="ogCUT23i" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728468AbgHYDE4 (ORCPT ); Mon, 24 Aug 2020 23:04:56 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38840 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728175AbgHYDEx (ORCPT ); Mon, 24 Aug 2020 23:04:53 -0400 Received: from ozlabs.org (ozlabs.org [IPv6:2401:3900:2:1::2]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0A30DC061574; Mon, 24 Aug 2020 20:04:53 -0700 (PDT) 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 4BbDPF10T7z9sTK; Tue, 25 Aug 2020 13:04:49 +1000 (AEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=canb.auug.org.au; s=201702; t=1598324690; bh=lhIqz0KHpNDTmGHLdzVh8OUSERGOE3vTU7qYSXb9H0M=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=ogCUT23ikQY9/IXgkqJbt/3Rzwz16zo2Akhi97eCg3F2rcU+onlZe5f8jjuVFNJWl yYtfcQmsJgFlecHghQNn1zrK4QZ1zzO2E+JqlZHIWzoUuatU/p1CzF8hWkfPwLPwYS DlSDjpD/mkyKMsaxwfGQl1II8wYFNMri1E6L/IqB2YNWCfpXNTi4Kiv5uC2duCQW/X CqpRfE7VTREB72C4ZpIeefE+uS56yQF2PSzrIS408WCyM9dZv09f/wBSUWrj9gflnd YKevMVcbSwyj6QnF3qm8BjtE3kGtx4323R5D+vfbk5YDDB2wfiZP9iDCgQWn2ZPGp+ zJ5XBZdrBQs2g== Date: Tue, 25 Aug 2020 13:04:45 +1000 From: Stephen Rothwell To: Alexei Starovoitov Cc: Daniel Borkmann , Alexei Starovoitov , Networking , Linux Next Mailing List , Linux Kernel Mailing List , David Miller Subject: Re: linux-next: build failure after merge of the bpf-next tree Message-ID: <20200825130445.655885f8@canb.auug.org.au> In-Reply-To: References: <20200821111111.6c04acd6@canb.auug.org.au> <20200825112020.43ce26bb@canb.auug.org.au> MIME-Version: 1.0 Content-Type: multipart/signed; boundary="Sig_/UdHhr.Z1_ueRZo/AaeqreTx"; protocol="application/pgp-signature"; micalg=pgp-sha256 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --Sig_/UdHhr.Z1_ueRZo/AaeqreTx Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable Hi Alexei, On Mon, 24 Aug 2020 18:25:44 -0700 Alexei Starovoitov wrote: > > On Mon, Aug 24, 2020 at 6:20 PM Stephen Rothwell w= rote: > > > > On Fri, 21 Aug 2020 11:11:11 +1000 Stephen Rothwell wrote: =20 > > > > > > After merging the bpf-next tree, today's linux-next build (x86_64 > > > allmodconfig) failed like this: > > > > > > Auto-detecting system features: > > > ... libelf: [ [31mOFF [m ] > > > ... zlib: [ [31mOFF [m ] > > > ... bpf: [ [32mon [m ] > > > > > > No libelf found > > > make[5]: *** [Makefile:284: elfdep] Error 1 > > > > > > Caused by commit > > > > > > d71fa5c9763c ("bpf: Add kernel module with user mode driver that po= pulates bpffs.") > > > > > > [For a start, can we please *not* add this verbose feature detection > > > output to the nrormal build?] > > > > > > This is a PowerPC hosted cross build. > > > > > > I have marked BPF_PRELOAD as BROKEN for now. =20 > > > > Still getting this failure ... =20 >=20 > I don't have powerpc with crosscompiler to x86 to reproduce. > What exactly the error? Just as above. > bpf_preload has: > "depends on CC_CAN_LINK" > which is exactly the same as bpfilter. > You should have seen this issue with bpfilter for years now. Well, I haven't :-) It just started the other day when that commit appeared. --=20 Cheers, Stephen Rothwell --Sig_/UdHhr.Z1_ueRZo/AaeqreTx Content-Type: application/pgp-signature Content-Description: OpenPGP digital signature -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEENIC96giZ81tWdLgKAVBC80lX0GwFAl9Ef80ACgkQAVBC80lX 0GztqQgAnLGgzIRqWxxHypLlA/LvG2w9edly23uy0BJN03RXPa3Cvpew2ncoHwfs MVduYmtGBYedqewae9ZmSVtuRqh73ANCoit0FahXeEbj4Cwi4rw5RIaGP/Qsojbb c2xFtgRRDVzeEsyS7ZQo9t+UF7s6DNkkO/pMeLViDDujGspbJQiNeBH9bBoAH48Y evzfAso+xprMeAdn/EPe46g2C2SyS8b+PDIUVpOqZo4bosBmZs39B4XhLm5OXXi3 p/D2H4uxaaHkm4BBBKgU0Za1SgwElOFfy8+ckGB78fuBe9ZndFsmyl4TH1MAkhGv FChh4XLX8Lp0gIso/bf1HauoK7fUUA== =sTUQ -----END PGP SIGNATURE----- --Sig_/UdHhr.Z1_ueRZo/AaeqreTx--