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Tsirkin" , Jason Wang , Xuan Zhuo , Eugenio =?iso-8859-1?Q?P=E9rez?= , Andrew Morton , Jonathan Corbet , Mario Casquero Subject: Re: [PATCH v2 5/7] virtio-mem: s390 support Message-ID: <20241014184824.10447-F-hca@linux.ibm.com> References: <20241014144622.876731-1-david@redhat.com> <20241014144622.876731-6-david@redhat.com> Precedence: bulk X-Mailing-List: virtualization@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20241014144622.876731-6-david@redhat.com> X-TM-AS-GCONF: 00 X-Proofpoint-GUID: uxrAbvVrvo_xSFv3iSYJ1lcmH8ghEeSX X-Proofpoint-ORIG-GUID: s1Vm0XBS-RoBWitXsY0-xWCcYcWAwN3a X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1051,Hydra:6.0.680,FMLib:17.12.62.30 definitions=2024-10-14_12,2024-10-11_01,2024-09-30_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 priorityscore=1501 suspectscore=0 lowpriorityscore=0 adultscore=0 mlxscore=0 malwarescore=0 phishscore=0 spamscore=0 mlxlogscore=270 impostorscore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2409260000 definitions=main-2410140131 On Mon, Oct 14, 2024 at 04:46:17PM +0200, David Hildenbrand wrote: > The special s390 kdump mode, whereby the 2nd kernel creates the ELF > core header, won't currently dump virtio-mem memory. The virtio-mem > driver has a special kdump mode, from where we can detect memory ranges > to dump. Based on this, support for dumping virtio-mem memory can be > added in the future fairly easily. Hm.. who will add this support? This looks like a showstopper to me. Who is supposed to debug crash dumps where memory parts are missing?