Bug 4364 - echo 0 > /sys/devices/system/cpu/cpu16/online causes a null dereference
Summary: echo 0 > /sys/devices/system/cpu/cpu16/online causes a null dereference
Status: RESOLVED INVALID
Alias: None
Product: ANCK 4.19 Dev
Classification: ANCK
Component: X86 (show other bugs) X86
Version: unspecified
Hardware: x86_64 Linux
: P3-Medium S5-enhancement
Target Milestone: ---
Assignee: Artie Ding
QA Contact: shuming
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2023-03-06 11:49 UTC by liuxiangyu
Modified: 2023-03-07 09:36 UTC (History)
2 users (show)

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Description liuxiangyu 2023-03-06 11:49:34 UTC 
Description of problem:
hygon硬件部署anlios后
执行cpu offline操作
echo 0 > /sys/devices/system/cpu/cpu16/online 
会触发系统panic

Version-Release number of selected component (if applicable):


How reproducible:

不执行cpu  offline
Steps to Reproduce:
1.hygon硬件环境 安装应用anlios版本
2.执行 echo 0 > /sys/devices/system/cpu/cpu16/online causes a null dereference
3.

Actual results:
系统panic

Expected results:


Additional info:
Comment 2 liuxiangyu 2023-03-07 09:36:44 UTC 
引入故障前置补丁没有合入该分支   不需要处理