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=-10.3 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,MAILING_LIST_MULTI, NICE_REPLY_A,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 7BA7AC433B4 for ; Sun, 9 May 2021 17:44:17 +0000 (UTC) Received: from lists.ozlabs.org (lists.ozlabs.org [112.213.38.117]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id C414A613C2 for ; Sun, 9 May 2021 17:44:16 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org C414A613C2 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=csgroup.eu Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Received: from boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4FdWlM168fz308T for ; Mon, 10 May 2021 03:44:15 +1000 (AEST) Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=csgroup.eu (client-ip=93.17.235.10; helo=pegase2.c-s.fr; envelope-from=christophe.leroy@csgroup.eu; receiver=) Received: from pegase2.c-s.fr (pegase2.c-s.fr [93.17.235.10]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4FdWky0tCXz2yXg for ; Mon, 10 May 2021 03:43:52 +1000 (AEST) Received: from localhost (mailhub3.si.c-s.fr [172.26.127.67]) by localhost (Postfix) with ESMTP id 4FdWkt01FYz9scP; Sun, 9 May 2021 19:43:50 +0200 (CEST) X-Virus-Scanned: amavisd-new at c-s.fr Received: from pegase2.c-s.fr ([172.26.127.65]) by localhost (pegase2.c-s.fr [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id LrFucX_Bx5vz; Sun, 9 May 2021 19:43:49 +0200 (CEST) Received: from messagerie.si.c-s.fr (messagerie.si.c-s.fr [192.168.25.192]) by pegase2.c-s.fr (Postfix) with ESMTP id 4FdWks5pvHz9sW0; Sun, 9 May 2021 19:43:49 +0200 (CEST) Received: from localhost (localhost [127.0.0.1]) by messagerie.si.c-s.fr (Postfix) with ESMTP id A22648B776; Sun, 9 May 2021 19:43:49 +0200 (CEST) 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 59svqTMl3dRk; Sun, 9 May 2021 19:43:49 +0200 (CEST) Received: from [192.168.4.90] (unknown [192.168.4.90]) by messagerie.si.c-s.fr (Postfix) with ESMTP id 112F28B765; Sun, 9 May 2021 19:43:49 +0200 (CEST) Subject: Re: [FSL P50x0] Xorg always restarts again and again after the the PowerPC updates 5.13-1 To: Christian Zigotzky References: <1b0134d4-4235-b294-8112-dcd5468564bf@csgroup.eu> <0A8D70F6-CBD4-44FD-9DB1-69097AEB5FA3@xenosoft.de> <10d52780-34ca-2205-8d5c-544a1ff2f248@xenosoft.de> <806945b0-d4e9-3064-8447-e8265642c048@xenosoft.de> From: Christophe Leroy Message-ID: Date: Sun, 9 May 2021 19:43:49 +0200 User-Agent: Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:78.0) Gecko/20100101 Thunderbird/78.10.1 MIME-Version: 1.0 In-Reply-To: <806945b0-d4e9-3064-8447-e8265642c048@xenosoft.de> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: fr Content-Transfer-Encoding: 8bit X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Darren Stevens , "R.T.Dickinson" , mad skateman , linuxppc-dev , Christian Zigotzky Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" Le 09/05/2021 à 14:27, Christian Zigotzky a écrit : > On 08 May 2021 at 06:39pm, Christian Zigotzky wrote: >> On 06 May 2021 at 03:58 pm, Christian Zigotzky wrote: >>> I have started bisecting again. >>> >>> Link: https://forum.hyperion-entertainment.com/viewtopic.php?p=53106#p53106 >>> >>> >>> >>>> On 6. May 2021, at 10:09, Christophe Leroy wrote: >>>> >>>> >>>> - Can you check that 887f3ceb51cd with cherry-picked 525642624783 has Xorg working ? >> git checkout 887f3ceb51cd >> git cherry-pick 525642624783 >> >> Result: Xorg works. >>>> - Can you bisect between 887f3ceb51cd[good] and 56bec2f9d4d0[bad] to identify first bad commit >>>> that stops after loading the dtb and uImage ? >>>> - Once that first bad commit is identified, can you check whether the preceeding commit with >>>> cherry-picked 525642624783 has Xorg working or not ? >>>> >>>> Thanks >>>> Christophe >> git bisect start >> git bisect good 887f3ceb51cd >> git bisect bad 56bec2f9d4d0 >> git bisect good -- Xorg restarts again and again but we are looking for the first bad commit that >> stops the boot after loading the dtb and uImage. >> git bisect good -- Xorg restarts again and again. >> git bisect good -- Xorg restarts again and again. >> git bisect good -- Xorg restarts again and again. >> >> Result: >> >> 56bec2f9d4d05675cada96772a8a93010f4d82bf is the first bad commit >> commit 56bec2f9d4d05675cada96772a8a93010f4d82bf >> Author: Michael Ellerman >> Date: Wed Mar 31 11:38:40 2021 +1100 >> >> powerpc/mm/64s: Add _PAGE_KERNEL_ROX >> >> In the past we had a fallback definition for _PAGE_KERNEL_ROX, but we >> removed that in commit d82fd29c5a8c ("powerpc/mm: Distribute platform >> specific PAGE and PMD flags and definitions") and added definitions >> for each MMU family. >> >> However we missed adding a definition for 64s, which was not really a >> bug because it's currently not used. >> >> But we'd like to use PAGE_KERNEL_ROX in a future patch so add a >> definition now. >> >> Signed-off-by: Michael Ellerman >> Link: https://lore.kernel.org/r/20210331003845.216246-1-mpe@ellerman.id.au >> >> :040000 040000 ff8171830c08e4f99852947a5c3b62e784220a26 85aff144e5219bce4eb6adb2ac32c6459cac22d0 >> M arch >> >> --- >> >> git cherry-pick 525642624783 >> >> Output: >> >> powerpc/signal32: Fix erroneous SIGSEGV on RT signal return >> Author: Christophe Leroy >> Date: Fri Apr 23 13:52:10 2021 +0000 >> 1 file changed, 2 insertions(+), 2 deletions(-) >> >> --- >> >> Xorg works after compiling with the cherry-pick of 525642624783. > Hi All, > > I compiled and tested the latest git kernel with the new PowerPC updates 5.13-2 today. Unfortunately > the Xorg issue still exists. > If I revert the PowerPC updates 5.13-1 and 5.13-2 then Xorg works without any problems. > > Please check the BookE changes in the PowerPC updates 5.13-1 because my Book3S machines aren't > affected by this issue. > On my side, book3e (corenet64_smp_defconfig) built with GCC 10.1 works well with QEMU 2.11.2 A kernel built with the configuration you provided doesn't boot on QEMU, no output at all, even with kernel v5.12. What versions of GCC and QEMU are you using ? Thanks Christophe