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definitions=2023-09-26_15,2023-09-26_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 spamscore=0 bulkscore=0 mlxscore=0 mlxlogscore=999 suspectscore=0 phishscore=0 adultscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2309180000 definitions=main-2309260188 X-Proofpoint-GUID: kfvIc9ej-6FuAyD635VmBslXfGshArW5 X-Proofpoint-ORIG-GUID: kfvIc9ej-6FuAyD635VmBslXfGshArW5 X-Spam-Status: No, score=-2.3 required=5.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, NICE_REPLY_A,SPF_HELO_NONE,SPF_PASS autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on agentk.vger.email Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-Greylist: Sender passed SPF test, not delayed by milter-greylist-4.6.4 (agentk.vger.email [0.0.0.0]); Tue, 26 Sep 2023 17:16:56 -0700 (PDT) On 9/26/23 15:50, Andrew Morton wrote: > On Tue, 26 Sep 2023 20:09:05 +0800 Baoquan He wrote: > >> Eric reported that handling corresponding crash hotplug event can be >> failed easily when many memory hotplug event are notified in a short >> period. They failed because failing to take __kexec_lock. > > I'm assuming that this failure is sufficiently likely so as to justify a -stable > backport of the fix. Please let me know if this is incorrect. Andrew, Correct, this is sufficiently likely to happen. Thanks, eric