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Fri, 24 Jul 2020 00:33:31 +0000 (GMT) Received: from b03ledav004.gho.boulder.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id A2E1378066; Fri, 24 Jul 2020 00:33:27 +0000 (GMT) Received: from morokweng.localdomain (unknown [9.163.53.35]) by b03ledav004.gho.boulder.ibm.com (Postfix) with ESMTPS; Fri, 24 Jul 2020 00:33:27 +0000 (GMT) References: <159524918900.20855.17709718993097359220.stgit@hbathini.in.ibm.com> <159524966309.20855.15216784717419378243.stgit@hbathini.in.ibm.com> User-agent: mu4e 1.2.0; emacs 26.3 From: Thiago Jung Bauermann To: Hari Bathini Subject: Re: [PATCH v4 10/12] ppc64/kexec_file: prepare elfcore header for crashing kernel In-reply-to: <159524966309.20855.15216784717419378243.stgit@hbathini.in.ibm.com> Date: Thu, 23 Jul 2020 21:33:23 -0300 Message-ID: <87365h69bg.fsf@morokweng.localdomain> MIME-Version: 1.0 Content-Type: text/plain X-TM-AS-GCONF: 00 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.235, 18.0.687 definitions=2020-07-23_09:2020-07-23, 2020-07-23 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 bulkscore=0 mlxscore=0 mlxlogscore=930 lowpriorityscore=0 clxscore=1015 spamscore=0 malwarescore=0 suspectscore=0 priorityscore=1501 adultscore=0 phishscore=0 impostorscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2006250000 definitions=main-2007230169 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: Pingfan Liu , Nayna Jain , Kexec-ml , Mahesh J Salgaonkar , Mimi Zohar , lkml , linuxppc-dev , Sourabh Jain , Petr Tesarik , Andrew Morton , Dave Young , Vivek Goyal , Eric Biederman Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" Hari Bathini writes: > Prepare elf headers for the crashing kernel's core file using > crash_prepare_elf64_headers() and pass on this info to kdump > kernel by updating its command line with elfcorehdr parameter. > Also, add elfcorehdr location to reserve map to avoid it from > being stomped on while booting. > > Signed-off-by: Hari Bathini > Tested-by: Pingfan Liu Reviewed-by: Thiago Jung Bauermann -- Thiago Jung Bauermann IBM Linux Technology Center