Bug 21665 - [Anolis23.3 RC][loongarch]修正龙芯平台使用大页时报错问题
Summary: [Anolis23.3 RC][loongarch]修正龙芯平台使用大页时报错问题
Status: RESOLVED FIXED
Alias: None
Product: ANCK 6.6 Dev
Classification: ANCK
Component: ARCH(unspecified) (show other bugs) ARCH(unspecified)
Version: 6.6.88-4
Hardware: loongarch Linux
: P3-Medium S3-normal
Target Milestone: ---
Assignee: gaojuxin09
QA Contact: shuming
URL:
Whiteboard: Cherry-pick to RC2
Keywords:
Depends on:
Blocks:
 
Reported: 2025-06-05 10:42 UTC by gaojuxin09
Modified: 2025-06-06 10:23 UTC (History)
4 users (show)

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Description gaojuxin09 loongson_group 2025-06-05 10:42:41 UTC 
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Comment 1 小龙 admin 2025-06-05 10:52:06 UTC 
The PR Link: https://gitee.com/anolis/cloud-kernel/pulls/5398
Comment 2 gaojuxin09 loongson_group 2025-06-06 10:00:12 UTC 
    anolis: Loongarch:Fixed up panic cause by a NULL-pmd
    
    ANBZ: #21665
    
    In some cases, pmd may be NULL and rely on NULL as the return value
    for processing, so it is necessary to determine this situation here
    
    Signed-off-by: zhangtianyang <zhangtianyang@loongson.cn>
    Signed-off-by: Juxin Gao <gaojuxin@loongson.cn>
    Link: https://gitee.com/anolis/cloud-kernel/pulls/5398