虚拟机stress压测产生oops导致重启

问题信息

1. 故障时间：2025-05-11-23:11:38
2. 故障节点：17.27 vm12
3. 故障现象：BUG: unable to handle kernel NULL pointer dereference at 0000000000000009
4. 内核版本：4.19.90-2102.2.0.0068.ctl2.x86_64

问题分析

git log openeuler/OLK-5.10 --grep='zap_huge_pmd' > zap_huge_pmd.log

deferred_split_scan

root@wujing:~/code/linux# git branch --contains c5e3a0eda5fb
  ctkernel-4.19/publish-ALL
  ctkernel-lts-4.19/develop
  openeuler-4-19/master
  openeuler-4-19/tag/release-0062.y
* openeuler-4-19/tag/release-0068
  openeuler-4-19/yuanql9/bugfix-pr-assert_list_leaf_cfs_rq
  openeuler/openEuler-1.0-LTS

问题结果