From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752957AbeDIPW4 (ORCPT ); Mon, 9 Apr 2018 11:22:56 -0400 Received: from vmicros1.altlinux.org ([194.107.17.57]:59994 "EHLO vmicros1.altlinux.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751673AbeDIPWz (ORCPT ); Mon, 9 Apr 2018 11:22:55 -0400 Date: Mon, 9 Apr 2018 18:22:53 +0300 From: "Dmitry V. Levin" To: "Eric W. Biederman" Cc: linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org Subject: ppc compat v4.16 regression: sending SIGTRAP or SIGFPE via kill() returns wrong values in si_pid and si_uid Message-ID: <20180409152253.GD10489@altlinux.org> Mail-Followup-To: "Eric W. Biederman" , linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="J5MfuwkIyy7RmF4Q" Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --J5MfuwkIyy7RmF4Q Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Hi, There seems to be a regression in v4.16 on ppc compat very similar to sparc compat regression reported earlier at https://marc.info/?l=3Dlinux-sparc&m=3D151501500704383 . The symptoms are exactly the same: the same signal_receive test from the strace test suite fails with the same diagnostics: https://build.opensuse.org/public/build/home:ldv_alt/openSUSE_Factory_Power= PC/ppc/strace/_log Unfortunately, I do not have any means to investigate further, so just passing this information on to those who care. --=20 ldv --J5MfuwkIyy7RmF4Q Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIcBAEBCAAGBQJay4VNAAoJEAVFT+BVnCUIHsEP/0dzOuE/JsoqDDRsS7s2ZmMT lazRZD/0abRpsonCGvNoOXm2NtqE9679S1zEmRll7lB+RZKLV3G9YmbtKeOsom7g YS4j5lQVeHLV+KxqcBLgxUDePGu/pXPQyY8f5cvvB/iSKGqOTe7Yd+mBUii1lu4U AeW3YxV72atR9Ysw826Zi57FM2XE4XCMtGYFI8QJ3VYDWne/DkbcD7hlqjCzlOwR pUWddlREy2fQRxwCEGgb/7AfJ+zl0z1ENJ2xxD27EFvI7VfVD8GjFinW3lJlaKF4 zR6V85RwJSshZOiyzgu7MbujX4R7jrH6Ac6s/L5qget7k1LGcsQRFmp62XmpMVJH A1ptiNBfk1+OMPtFvemPU/FAu9X05/902iakGsZV2hl3JRWyA9bUfmYRBqHXvoMX 7GYAfrGpqKA4A4eNbPC2mjwkdUSRNZa2vI8vop4vttH0MlYjIDGwyEwUCeiOD53p AnjxPOP4ckslvo7VPbCr2u+PPC5CVhxzPzxULgmUVBs51Iqlak+AwSVv1t/S9uew Iko3u2Qpxp3aYj7MHXJjNLjquPHz9SJv0xN/ZmfExN4rYseNUrlbmFAkYwLCVzk4 bFrehE0iUz0FyoHKqX91KeVvo+d7SbRox+rRzdVfq546EMrwcpXoiIBATHLPAE8a k5HLVlm4I1mVfWMFZm0o =0jiy -----END PGP SIGNATURE----- --J5MfuwkIyy7RmF4Q--