From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <SRS0=3O72=4C=lists.ozlabs.org=linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@kernel.org>
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=-2.4 required=3.0 tests=DKIM_SIGNED,DKIM_VALID,
	DKIM_VALID_AU,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 4FBDAC35242
	for <linuxppc-dev@archiver.kernel.org>; Fri, 14 Feb 2020 06:26:34 +0000 (UTC)
Received: from lists.ozlabs.org (lists.ozlabs.org [203.11.71.2])
	(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 6B2092187F
	for <linuxppc-dev@archiver.kernel.org>; Fri, 14 Feb 2020 06:26:33 +0000 (UTC)
Authentication-Results: mail.kernel.org;
	dkim=pass (1024-bit key) header.d=c-s.fr header.i=@c-s.fr header.b="CwlzLYDQ"
DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 6B2092187F
Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=c-s.fr
Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org
Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3])
	by lists.ozlabs.org (Postfix) with ESMTP id 48Jk126bgVzDqYt
	for <linuxppc-dev@archiver.kernel.org>; Fri, 14 Feb 2020 17:26:30 +1100 (AEDT)
Received: from ozlabs.org (bilbo.ozlabs.org [203.11.71.1])
 (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)
 key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256)
 (No client certificate requested)
 by lists.ozlabs.org (Postfix) with ESMTPS id 48Jjz250vFzDqXB
 for <linuxppc-dev@lists.ozlabs.org>; Fri, 14 Feb 2020 17:24:46 +1100 (AEDT)
Authentication-Results: lists.ozlabs.org;
 dmarc=none (p=none dis=none) header.from=c-s.fr
Authentication-Results: lists.ozlabs.org; dkim=pass (1024-bit key;
 unprotected) header.d=c-s.fr header.i=@c-s.fr header.a=rsa-sha256
 header.s=mail header.b=CwlzLYDQ; dkim-atps=neutral
Received: from ozlabs.org (bilbo.ozlabs.org [IPv6:2401:3900:2:1::2])
 by bilbo.ozlabs.org (Postfix) with ESMTP id 48Jjz16Yfjz8t5c
 for <linuxppc-dev@lists.ozlabs.org>; Fri, 14 Feb 2020 17:24:45 +1100 (AEDT)
Received: by ozlabs.org (Postfix)
 id 48Jjz16FPWz9sRQ; Fri, 14 Feb 2020 17:24:45 +1100 (AEDT)
Authentication-Results: ozlabs.org;
 spf=pass (sender SPF authorized) smtp.mailfrom=c-s.fr
 (client-ip=93.17.236.30; helo=pegase1.c-s.fr;
 envelope-from=christophe.leroy@c-s.fr; receiver=<UNKNOWN>)
Authentication-Results: ozlabs.org;
 dmarc=none (p=none dis=none) header.from=c-s.fr
Authentication-Results: ozlabs.org; dkim=pass (1024-bit key;
 unprotected) header.d=c-s.fr header.i=@c-s.fr header.a=rsa-sha256
 header.s=mail header.b=CwlzLYDQ; dkim-atps=neutral
Received: from pegase1.c-s.fr (pegase1.c-s.fr [93.17.236.30])
 (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits))
 (No client certificate requested)
 by ozlabs.org (Postfix) with ESMTPS id 48Jjyz4MJzz9sRN
 for <linuxppc-dev@ozlabs.org>; Fri, 14 Feb 2020 17:24:40 +1100 (AEDT)
Received: from localhost (mailhub1-int [192.168.12.234])
 by localhost (Postfix) with ESMTP id 48Jjyp61wvz9txWG;
 Fri, 14 Feb 2020 07:24:34 +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=CwlzLYDQ; 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 QXVKXOsI14oW; Fri, 14 Feb 2020 07:24:34 +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 48Jjyp4TbBz9txjC;
 Fri, 14 Feb 2020 07:24:34 +0100 (CET)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=c-s.fr; s=mail;
 t=1581661474; bh=9P90+Q+RXZyF+YE9JH5YlqgCM8FTwqoWeB/ZfIvJKdw=;
 h=Subject:To:Cc:References:From:Date:In-Reply-To:From;
 b=CwlzLYDQ6CQvS2so9Tp0P1vu1lWxdQgDb3JfMDz6c1IuxtlsRauiGB4tXW2mX4R4w
 IEGiCTgQxroG/SEGtY7ouIBOXXfy5w0nhqoP4eEP3U5wRfTXl3SwOxo7t9ZEYFEjZ0
 sH3B7mdgJJYZrGZpPcDS3vBz3hSQj1XI3dJZDXu4=
Received: from localhost (localhost [127.0.0.1])
 by messagerie.si.c-s.fr (Postfix) with ESMTP id 722D68B878;
 Fri, 14 Feb 2020 07:24:35 +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 QAYuuD81ZflU; Fri, 14 Feb 2020 07:24:35 +0100 (CET)
Received: from [172.25.230.102] (po15451.idsi0.si.c-s.fr [172.25.230.102])
 by messagerie.si.c-s.fr (Postfix) with ESMTP id 4AFE18B874;
 Fri, 14 Feb 2020 07:24:35 +0100 (CET)
Subject: Re: RESEND: Re: Problem booting a PowerBook G4 Aluminum after commit
 cd08f109 with CONFIG_VMAP_STACK=y
To: Larry Finger <Larry.Finger@lwfinger.net>
References: <f7565b89-c8b2-d2e7-929e-4b1abf72fc63@lwfinger.net>
 <159ed5d8-376b-1642-fb4b-01406d671cf1@c-s.fr>
 <6a1802b8-c6a7-d091-1036-689e089b786f@lwfinger.net>
 <f35ea4e6-7c54-6acc-7d91-3a6eea56133c@c-s.fr>
 <608a1a18-a0ed-2059-bfbc-081c9ef1bfd8@lwfinger.net>
 <a8a38651-974a-819a-810c-83c4097adc10@c-s.fr>
 <7f63e8a8-95c5-eeca-dc79-3c13f4d98d39@lwfinger.net>
 <9429f86e-8c7d-b2e6-6dc1-8f58c44baadc@c-s.fr>
 <2da19b26-9a44-2e4e-ab7d-d3fff65091bd@lwfinger.net>
From: Christophe Leroy <christophe.leroy@c-s.fr>
Message-ID: <02ce1278-5880-063c-2281-178edd541232@c-s.fr>
Date: Fri, 14 Feb 2020 07:24:35 +0100
User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:68.0) Gecko/20100101
 Thunderbird/68.5.0
MIME-Version: 1.0
In-Reply-To: <2da19b26-9a44-2e4e-ab7d-d3fff65091bd@lwfinger.net>
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 <linuxppc-dev.lists.ozlabs.org>
List-Unsubscribe: <https://lists.ozlabs.org/options/linuxppc-dev>,
 <mailto:linuxppc-dev-request@lists.ozlabs.org?subject=unsubscribe>
List-Archive: <http://lists.ozlabs.org/pipermail/linuxppc-dev/>
List-Post: <mailto:linuxppc-dev@lists.ozlabs.org>
List-Help: <mailto:linuxppc-dev-request@lists.ozlabs.org?subject=help>
List-Subscribe: <https://lists.ozlabs.org/listinfo/linuxppc-dev>,
 <mailto:linuxppc-dev-request@lists.ozlabs.org?subject=subscribe>
Cc: "linuxppc-dev@ozlabs.org" <linuxppc-dev@ozlabs.org>
Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org
Sender: "Linuxppc-dev"
 <linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org>

Larry,

Le 14/02/2020 à 00:09, Larry Finger a écrit :
> Christophe,
> 
> With this patch, it gets further. Sometime after the boot process tries 
> to start process init, it crashes with the unable to read data at 
> 0x000157a0 with a faulting address of 0xc001683c. The screenshot is 
> attached and the gzipped vmlinux is at 
> http://www.lwfinger.com/download/vmlinux2.gz. The patches that were 
> applied for this kernel are also attached,
> 


Did you try with the patch at https://patchwork.ozlabs.org/patch/1237387/ ?

I see the problem happens in kprobe_handler(). Can you try without 
CONFIG_KPROBE ?

Christophe