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=-5.3 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 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 858A6C2D0B1 for ; Fri, 7 Feb 2020 06:13:40 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 564E620726 for ; Fri, 7 Feb 2020 06:13:40 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=c-s.fr header.i=@c-s.fr header.b="VBI9HpSi" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726867AbgBGGNj (ORCPT ); Fri, 7 Feb 2020 01:13:39 -0500 Received: from pegase1.c-s.fr ([93.17.236.30]:36034 "EHLO pegase1.c-s.fr" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726465AbgBGGNj (ORCPT ); Fri, 7 Feb 2020 01:13:39 -0500 Received: from localhost (mailhub1-int [192.168.12.234]) by localhost (Postfix) with ESMTP id 48DQ3P0lRqz9vCRd; Fri, 7 Feb 2020 07:13:37 +0100 (CET) Authentication-Results: localhost; dkim=pass reason="1024-bit key; insecure key" header.d=c-s.fr header.i=@c-s.fr header.b=VBI9HpSi; dkim-adsp=pass; dkim-atps=neutral X-Virus-Scanned: Debian amavisd-new at c-s.fr Received: from pegase1.c-s.fr ([192.168.12.234]) by localhost (pegase1.c-s.fr [192.168.12.234]) (amavisd-new, port 10024) with ESMTP id gzVgY-i6r0ul; Fri, 7 Feb 2020 07:13:37 +0100 (CET) Received: from messagerie.si.c-s.fr (messagerie.si.c-s.fr [192.168.25.192]) by pegase1.c-s.fr (Postfix) with ESMTP id 48DQ3N6p6Nz9vCRc; Fri, 7 Feb 2020 07:13:36 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=c-s.fr; s=mail; t=1581056016; bh=bbu/3mso59R+gEjJVL9ywigwi8zK6YunGCEdD2uledg=; h=Subject:To:Cc:References:From:Date:In-Reply-To:From; b=VBI9HpSipL/hmjUvWCjqwBXcNu2OQ6sDKKNiyBCjPP2weW1+lAERYRTTL8epFki0u dezve6NbgxgTXvP+vTg2wohpL0lfpONr+lbced14i8eWELCMc1xmYkdVhSbk0bbhZN 3uqg5zrxVlgYsbugBH4aziHQ1KZv8tx/m6i/AMCI= Received: from localhost (localhost [127.0.0.1]) by messagerie.si.c-s.fr (Postfix) with ESMTP id E80318B8AE; Fri, 7 Feb 2020 07:13:37 +0100 (CET) X-Virus-Scanned: amavisd-new at c-s.fr Received: from messagerie.si.c-s.fr ([127.0.0.1]) by localhost (messagerie.si.c-s.fr [127.0.0.1]) (amavisd-new, port 10023) with ESMTP id cciXfyni8DUB; Fri, 7 Feb 2020 07:13:37 +0100 (CET) Received: from [172.25.230.107] (po15451.idsi0.si.c-s.fr [172.25.230.107]) by messagerie.si.c-s.fr (Postfix) with ESMTP id C04DA8B75B; Fri, 7 Feb 2020 07:13:37 +0100 (CET) Subject: Re: [PATCH v5 17/17] powerpc/32s: Enable CONFIG_VMAP_STACK To: Guenter Roeck Cc: Benjamin Herrenschmidt , Paul Mackerras , Michael Ellerman , dja@axtens.net, linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-mm@kvack.org References: <2e2509a242fd5f3e23df4a06530c18060c4d321e.1576916812.git.christophe.leroy@c-s.fr> <20200206203146.GA23248@roeck-us.net> From: Christophe Leroy Message-ID: Date: Fri, 7 Feb 2020 07:13:37 +0100 User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:68.0) Gecko/20100101 Thunderbird/68.4.2 MIME-Version: 1.0 In-Reply-To: <20200206203146.GA23248@roeck-us.net> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: fr Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Le 06/02/2020 à 21:31, Guenter Roeck a écrit : > On Sat, Dec 21, 2019 at 08:32:38AM +0000, Christophe Leroy wrote: >> A few changes to retrieve DAR and DSISR from struct regs >> instead of retrieving them directly, as they may have >> changed due to a TLB miss. >> >> Also modifies hash_page() and friends to work with virtual >> data addresses instead of physical ones. Same on load_up_fpu() >> and load_up_altivec(). >> >> Signed-off-by: Christophe Leroy > > This patch results in qemu boot failures (mac99 with pmac32_defconfig). > Images fail silently; there is no console output. Reverting the patch > fixes the problem. Bisect log is attached below. > > Assuming this was tested on real hardware, am I correct to assume that qemu > for ppc32 (more specifically, qemu's mac99 and g3beige machines) no longer > works with the upstream kernel ? Before submitting the series, I successfully tested: - Real HW with powerpc 8xx - Real HW with powerpc 832x - Qemu's mac99 I'll re-check the upstream kernel. In the mean time, you can still unselect CONFIG_VMAP_STACK in your config. Christophe