Bug 18705 - [anolis 8.10][vhd] ecs.ebmhfc7.48xlarge和ecs.ebmg6.26xlarge规格的生成的vmcore需要300+G的空间，导致vmcore保存失败
Summary: [anolis 8.10][vhd] ecs.ebmhfc7.48xlarge和ecs.ebmg6.26xlarge规格的生成的vmcore需要300+G...
Status: CLOSED FIXED
Alias: None
Product: Anolis OS 8
Classification: Anolis OS
Component: Images&Installations (show other bugs) Images&Installations
Version: 8.10
Hardware: All Linux
: P3-Medium S3-normal
Target Milestone: ---
Assignee: wangzhe
QA Contact: shuming
URL:
Whiteboard:
Keywords: Function
Depends on:
Blocks:
 
Reported: 2025-02-10 14:24 UTC by gitpush
Modified: 2025-03-18 10:06 UTC (History)
2 users (show)

See Also:

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Description gitpush alibaba_cloud_group 2025-02-10 14:24:23 UTC 
执行过程：
[root@localhost ~]# yum install -y crash
[root@localhost ~]# systemctl start kdump.service
[root@localhost ~]# systemctl is-active kdump.service
active
[root@localhost ~]# echo c >/proc/sysrq-trigger
等待一会重连机器
[root@localhost ~]# cd /var/crash/
[root@localhost crash]# ll
total 8
drwxr-xr-x 2 root root 4096 Feb 10 14:05 127.0.0.1-2025-02-10-14:05:33
drwxr-xr-x 2 root root 4096 Feb 10 14:03 scripts
[root@localhost crash]# ll 127.0.0.1-2025-02-10-14\:05\:33/
total 54756
-rw------- 1 root root    261511 Feb 10 14:05 kexec-dmesg.log
-rw------- 1 root root    206230 Feb 10 14:05 vmcore-dmesg.txt
-rw------- 1 root root 116985856 Feb 10 14:05 vmcore-incomplete

[root@localhost crash]# cat /var/log/messages |grep kdump
Feb 10 14:04:39 localhost kdumpctl[145822]: kdump: Detected change(s) in the following file(s):  /var/crash/scripts/kdump-pre.sh
Feb 10 14:04:39 localhost kdumpctl[145822]: kdump: Rebuilding /boot/initramfs-5.10.134-18.an8.x86_64kdump.img
Feb 10 14:04:39 localhost kdumpctl[146122]: kdump: Warning: There might not be enough space to save a vmcore.
Feb 10 14:04:39 localhost kdumpctl[146122]: kdump:          The size of /dev/vda3 should be greater than 394575548 kilo bytes.
Comment 1 gitpush alibaba_cloud_group 2025-02-10 14:27:30 UTC 
补充基本信息：
[root@localhost crash]# df -h
Filesystem      Size  Used Avail Use% Mounted on
devtmpfs        189G     0  189G   0% /dev
tmpfs           189G     0  189G   0% /dev/shm
tmpfs           189G  2.3M  189G   1% /run
tmpfs           189G     0  189G   0% /sys/fs/cgroup
/dev/vda3        20G  4.4G   15G  24% /
/dev/vda2       200M  5.8M  194M   3% /boot/efi
tmpfs            38G     0   38G   0% /run/user/0
[root@localhost crash]# cat /etc/image-id
image_name="Anolis OS 8.9 ANCK 64 bit"
image_id="anolisos_8_10_x64_20G_anck_community_alibase_20250115.vhd"
release_date="20250115112955"
[root@localhost crash]# cat /etc/os-release
NAME="Anolis OS"
VERSION="8.10"
ID="anolis"
ID_LIKE="rhel fedora centos"
VERSION_ID="8.10"
PLATFORM_ID="platform:an8"
PRETTY_NAME="Anolis OS 8.10"
ANSI_COLOR="0;31"
HOME_URL="https://openanolis.cn/"
Comment 2 lv0322 alibaba_cloud_group 2025-02-11 16:29:03 UTC 
补充cmdline：
BOOT_IMAGE=(hd0,gpt3)/boot/vmlinuz-5.10.134-18.an8.x86_64 root=UUID=c6b2dfc4-864b-46e9-b7f6-ab81da1011dd ro crashkernel=0M-2G:0M,2G-8G:192M,8G-:256M cryptomgr.notests cgroup.memory=nokmem rcupdate.rcu_cpu_stall_timeout=300 vring_force_dma_api spec_rstack_overflow=off biosdevname=0 net.ifnames=0 console=tty0 console=ttyS0,115200n8 noibrs nvme_core.io_timeout=4294967295 nvme_core.admin_timeout=4294967295 nomodeset intel_idle.max_cstate=1
Comment 3 wangzhe 2025-03-07 14:11:16 UTC 
aarch64
crashkernel=0M-2G:0M,2G-64G:256M,64G-:384M
x86_64
crashkernel=0M-2G:0M,2G-8G:192M,8G-128G:256M,128G-376G:384M,376G-:448M

虚拟机镜像中已更新 cmdline 中 crashkernel 参数，RC2 测试中提供更新后的镜像