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=-0.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS 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 008AAC43603 for ; Wed, 11 Dec 2019 02:23:22 +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 490982073B for ; Wed, 11 Dec 2019 02:23:22 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 490982073B Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linux.ibm.com 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 47XghR45dKzDqcm for ; Wed, 11 Dec 2019 13:23:19 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=linux.ibm.com (client-ip=148.163.158.5; helo=mx0b-001b2d01.pphosted.com; envelope-from=aneesh.kumar@linux.ibm.com; receiver=) Authentication-Results: lists.ozlabs.org; dmarc=none (p=none dis=none) header.from=linux.ibm.com Received: from mx0b-001b2d01.pphosted.com (mx0b-001b2d01.pphosted.com [148.163.158.5]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 47XgfC04nhzDqcY for ; Wed, 11 Dec 2019 13:21:22 +1100 (AEDT) Received: from pps.filterd (m0127361.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id xBB2CJdO029625; Tue, 10 Dec 2019 21:20:41 -0500 Received: from ppma03dal.us.ibm.com (b.bd.3ea9.ip4.static.sl-reverse.com [169.62.189.11]) by mx0a-001b2d01.pphosted.com with ESMTP id 2wtf6xrv2f-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 10 Dec 2019 21:20:41 -0500 Received: from pps.filterd (ppma03dal.us.ibm.com [127.0.0.1]) by ppma03dal.us.ibm.com (8.16.0.27/8.16.0.27) with SMTP id xBB2KEfK007296; Wed, 11 Dec 2019 02:20:40 GMT Received: from b03cxnp07029.gho.boulder.ibm.com (b03cxnp07029.gho.boulder.ibm.com [9.17.130.16]) by ppma03dal.us.ibm.com with ESMTP id 2wr3q7hafe-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 11 Dec 2019 02:20:40 +0000 Received: from b03ledav001.gho.boulder.ibm.com (b03ledav001.gho.boulder.ibm.com [9.17.130.232]) by b03cxnp07029.gho.boulder.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id xBB2KdHR53084632 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 11 Dec 2019 02:20:39 GMT Received: from b03ledav001.gho.boulder.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 49E806E050; Wed, 11 Dec 2019 02:20:39 +0000 (GMT) Received: from b03ledav001.gho.boulder.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id B11DB6E054; Wed, 11 Dec 2019 02:20:34 +0000 (GMT) Received: from skywalker.linux.ibm.com (unknown [9.199.39.208]) by b03ledav001.gho.boulder.ibm.com (Postfix) with ESMTP; Wed, 11 Dec 2019 02:20:33 +0000 (GMT) X-Mailer: emacs 26.2 (via feedmail 11-beta-1 I) From: "Aneesh Kumar K.V" To: John Paul Adrian Glaubitz , Romain Dolbeau , linuxppc-dev@lists.ozlabs.org, mpe@ellerman.id.au Subject: Re: Found the commit for: 5.3.7 64-bits kernel doesn't boot on G5 Quad [regression] In-Reply-To: References: Date: Wed, 11 Dec 2019 07:50:31 +0530 Message-ID: <87eexbk3gw.fsf@linux.ibm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-TM-AS-GCONF: 00 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.95,18.0.572 definitions=2019-12-10_08:2019-12-10,2019-12-10 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 lowpriorityscore=0 priorityscore=1501 adultscore=0 clxscore=1011 malwarescore=0 suspectscore=0 impostorscore=0 bulkscore=0 phishscore=0 spamscore=0 mlxscore=0 mlxlogscore=895 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-1910280000 definitions=main-1912110019 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: PowerPC List Debian Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" John Paul Adrian Glaubitz writes: > Hi! > > On 12/10/19 9:35 AM, Romain Dolbeau wrote: >> Le sam. 16 nov. 2019 =C3=A0 17:34, Romain Dolbeau a= =C3=A9crit : >>> So it seems to me that 0034d395f89d9c092bb15adbabdca5283e258b41 >>> introduced the bug that crashes the PowerMac G5 >>=20 >> There's been some commits in that subsystem, so I tried again; as of >> 6794862a16ef41f753abd75c03a152836e4c8028, the kernel still crashes >> when trying to boot my PowerMac G5. > > If Aneesh is currently unable to look at the problem, I would suggest rev= erting > the commit in question since I don't think it's acceptable that users are= unable > to boot their machines anymore after a kernel upgrade. > The PowerMac system we have internally was not able to recreate this. Hence we have not been able to make progress on this. At this point, I am not sure what would cause the Machine check with that patch series because we have not changed the VA bits in that patch. -aneesh