Bug 4581 - [ANCK 4.19] nfsd crash because *drc_slab is 0
Summary: [ANCK 4.19] nfsd crash because *drc_slab is 0
Status: RESOLVED FIXED
Alias: None
Product: ANCK 4.19 Dev
Classification: ANCK
Component: fs (show other bugs) fs
Version: 4.19-026.x
Hardware: All Linux
: P3-Medium S3-normal
Target Milestone: ---
Assignee: wangchuanguo_lc
QA Contact: shuming
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2023-03-21 16:58 UTC by wangchuanguo_lc
Modified: 2023-06-07 17:34 UTC (History)
3 users (show)

See Also:

Attachments
vmcore-dmesg (1.18 MB, text/plain)
2023-03-21 16:58 UTC, wangchuanguo_lc 		Details
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Description wangchuanguo_lc inspur_group 2023-03-21 16:58:44 UTC 
Created attachment 682 [details]
vmcore-dmesg

Description of problem:
kernel crash at nfsd_cache_lookup .

Version-Release number of selected component (if applicable):
4.19.91-26.x

How reproducible:
1、create A B C vms.
2、A-client，B-server； B-client C-server；
3、B Crashes after running for a long while（1 or 2 days）

I found the static struct kmem_cache *drc_slab = 0 in vmcore.
Comment 1 小龙 admin 2023-04-23 10:04:46 UTC 
The PR Link: https://gitee.com/anolis/cloud-kernel/pulls/1591
Comment 2 Jingbo Xu alibaba_cloud_group 2023-05-05 10:30:00 UTC 
The root cause is fixed by https://bugzilla.openanolis.cn/show_bug.cgi?id=4801

While PR https://gitee.com/anolis/cloud-kernel/pulls/1591 introduces the refactoring of drc containerization.
Comment 3 Joseph Qi alibaba_cloud_group 2023-06-07 17:33:50 UTC 
(In reply to Jingbo Xu from comment #2)
> The root cause is fixed by
> https://bugzilla.openanolis.cn/show_bug.cgi?id=4801
> 
> While PR https://gitee.com/anolis/cloud-kernel/pulls/1591 introduces the
> refactoring of drc containerization.

merged
Comment 4 Joseph Qi alibaba_cloud_group 2023-06-07 17:34:05 UTC 
merged