Bug 7894 - 飞腾平台8 numa 机器只插四根内存条时内核启动失败
Summary: 飞腾平台8 numa 机器只插四根内存条时内核启动失败
Status: RESOLVED FIXED
Alias: None
Product: ANCK 4.19 Dev
Classification: ANCK
Component: ARM (show other bugs) ARM
Version: 4.19-027.x
Hardware: aarch64 Linux
: P3-Medium S3-normal
Target Milestone: ---
Assignee: fghui_kernel
QA Contact: shuming
URL:
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Keywords:
Depends on:
Blocks:
 
Reported: 2024-01-12 14:55 UTC by chuguangqing
Modified: 2024-04-29 13:49 UTC (History)
2 users (show)

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Description chuguangqing inspur_group 2024-01-12 14:55:06 UTC 
Description of problem:

percpu: allocation failed, size=256 align=256 atomic=0, failed to allocate new chunk   failed to create workqueue kmpathd

percpu内存申请失败

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


How reproducible:


Steps to Reproduce:
1.8numa的飞腾5000c主机，只插四根内存
2.4.19内核启动大量报percpu: allocation failed 
3.插8条内存没有问题
4、麒麟4.19.90内核没有问题

Actual results:
内核core dump

Expected results:
内核成功启动

Additional info:
Comment 1 小龙 admin 2024-01-18 17:06:11 UTC 
The PR Link: https://gitee.com/anolis/cloud-kernel/pulls/2632
Comment 2 chuguangqing inspur_group 2024-01-18 19:47:24 UTC 
分析是内存vmap_areas越界，确认已解决这个问题。
Comment 3 小龙 admin 2024-04-29 13:49:04 UTC 
The PR Link: https://gitee.com/anolis/cloud-kernel/pulls/3109