Bug 2444 - Anolis OS 23 with 5.10内核vmcore无法正常保存
Summary: Anolis OS 23 with 5.10内核vmcore无法正常保存
Status: RESOLVED FIXED
Alias: None
Product: Anolis OS 23
Classification: Anolis OS
Component: Others (show other bugs) Others
Version: 23.0
Hardware: All Linux
: P3-Medium S3-normal
Target Milestone: ---
Assignee: xuchunmei
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Reported: 2022-10-19 17:51 UTC by xuchunmei
Modified: 2022-10-19 19:02 UTC (History)
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Description xuchunmei alibaba_cloud_group 2022-10-19 17:51:51 UTC 
Description of problem:

Anolis OS 23默认集成5.10内核后，无法正常保存vmcore，串口信息显示：
Filesystem uses "zstd" compression. This is not supported
mount: /squash/root: wrong fs type, bad option, bad superblock on /dev/loop0, missing codepage or helper program, or other error.
dmesg(1) may have more information after failed mount system call.


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Comment 1 xuchunmei alibaba_cloud_group 2022-10-19 17:52:56 UTC 
kexec-tools最新版本默认使用zstd的方式制作kdump initrd，但是5.10内核目前尚未开启CONFIG_SQUASHFS_ZSTD。
Comment 2 xuchunmei alibaba_cloud_group 2022-10-19 19:02:53 UTC 
kexec-tools中做内核是否开启CONFIG_SQUASHFS_ZSTD判断，如果开启则使用zstd压缩，不开启使用默认的压缩。
相关提交：
https://gitee.com/src-anolis-os/kexec-tools/pulls/12