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=-2.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 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 569EEC004EF for ; Wed, 10 Jul 2019 08:58:37 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 361D620693 for ; Wed, 10 Jul 2019 08:58:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727663AbfGJI6d (ORCPT ); Wed, 10 Jul 2019 04:58:33 -0400 Received: from Galois.linutronix.de ([193.142.43.55]:47130 "EHLO Galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726580AbfGJI6d (ORCPT ); Wed, 10 Jul 2019 04:58:33 -0400 Received: from pd9ef1cb8.dip0.t-ipconnect.de ([217.239.28.184] helo=nanos) by Galois.linutronix.de with esmtpsa (TLS1.2:DHE_RSA_AES_256_CBC_SHA256:256) (Exim 4.80) (envelope-from ) id 1hl8Ql-0006xp-9o; Wed, 10 Jul 2019 10:58:27 +0200 Date: Wed, 10 Jul 2019 10:58:25 +0200 (CEST) From: Thomas Gleixner To: Will Deacon cc: John Stultz , Vincenzo Frascino , linux-arch@vger.kernel.org, linux-arm-kernel , lkml , linux-mips@vger.kernel.org, linux-kselftest@vger.kernel.org, Shuah Khan , Andre Przywara , Arnd Bergmann , Huw Davies , Catalin Marinas , Daniel Lezcano , Will Deacon , Russell King , Ralf Baechle , Mark Salyzyn , Paul Burton , Dmitry Safonov <0x7f454c46@gmail.com>, Rasmus Villemoes , Shijith Thotton , Peter Collingbourne Subject: Re: [PATCH v7 10/25] arm64: compat: Add vDSO In-Reply-To: <20190710082750.mvm3e6myzpqsurga@willie-the-truck> Message-ID: References: <20190621095252.32307-1-vincenzo.frascino@arm.com> <20190621095252.32307-11-vincenzo.frascino@arm.com> <20190710082750.mvm3e6myzpqsurga@willie-the-truck> User-Agent: Alpine 2.21 (DEB 202 2017-01-01) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII X-Linutronix-Spam-Score: -1.0 X-Linutronix-Spam-Level: - X-Linutronix-Spam-Status: No , -1.0 points, 5.0 required, ALL_TRUSTED=-1,SHORTCIRCUIT=-0.0001 Sender: linux-mips-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-mips@vger.kernel.org On Wed, 10 Jul 2019, Will Deacon wrote: > On Tue, Jul 09, 2019 at 09:02:54PM -0700, John Stultz wrote: > > I tried to bisect things down a bit, but as some later fixes are > > required (at one point, date was returning the start epoch and never > > increasing), this hasn't worked too well. But I'm guessing since I > > see: "CROSS_COMPILE_COMPAT not defined or empty, the compat vDSO will > > not be built", and the system is half working, I'm guessing this is an > > issue with just the 32bit code failing. While I can try to sort out > > the proper CROSS_COMPILE_COMPAT in my build environment, I assume > > userland shouldn't be crashing if that value isn't set. > > > > Any chance this issue has already been raised? > > First I've seen of it, although Vincenzo is likely to know better than me. > In the meantime, please can you share your .config? I think the key is: CROSS_COMPILE_COMPAT not defined or empty. And then run 32bit userspace. Thanks, tglx