查看问题详情
编号 | 项目 | 分类 | 查看权限 | 报告日期 | 最后更新 |
---|---|---|---|---|---|
0000324 | Anolis OS 7 | General | public | 2021-10-13 16:14 | 2021-11-17 10:42 |
报告员 | anolis_account | 分派给 | xingxin830 | ||
优先级 | low | 严重性 | minor | 出现频率 | always |
状态 | assigned | 处理状况 | open | ||
平台 | aarch64 | 操作系统 | Anolis OS | 操作系统版本 | 7.7 |
标题 | 0000324: [Anolis OS 7.7][aarch64]dmesg check, cacheinfo: Unable to detect cache hierarchy for CPU 0 | ||||
描述 | 开机启动后,dmesg日志中有如下warning日志: #dmesg -l warn -T cacheinfo: Unable to detect cache hierarchy for CPU 0 [重现概率] 必现 [重现环境] # uname -a Linux VM20210425-1 4.19.91-24.8.an7.aarch64 #1 SMP Sat Sep 18 16:58:48 CST 2021 aarch64 aarch64 aarch64 GNU/Linux [root@VM20210425-1]# cat /etc/os-release NAME="Anolis OS" VERSION="7.7" ID="anolis" ID_LIKE="rhel fedora centos" VERSION_ID="7.7" PRETTY_NAME="Anolis OS 7.7" ANSI_COLOR="0;31" HOME_URL="https://openanolis.cn/" BUG_REPORT_URL="https://bugs.openanolis.cn/" CENTOS_MANTISBT_PROJECT="CentOS-7" CENTOS_MANTISBT_PROJECT_VERSION="7" REDHAT_SUPPORT_PRODUCT="centos" REDHAT_SUPPORT_PRODUCT_VERSION="7" anolis8 上有同样BUG https://bugs.openanolis.cn/view.php?id=258 | ||||
问题重现步骤 | 安装arm版本虚拟机后,进入环境,执行命令:dmesg -l warn -T | ||||
附注 | anolis8 上有同样BUG https://bugs.openanolis.cn/view.php?id=258 | ||||
标签 | 没加标签. | ||||
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这个跟 NUMA 拓扑虚拟化有关, 不是什么大问题. 也请 @宝林 帮忙看看. http://zhiyisun.github.io/2016/06/25/Get-Cache-Info-in-Linux-on-ARMv8-64-bit-Platform.html --- It is good to get a ARM 64-bit box and practice it on that. We can use qemu-system-aarch64 as an alternative. But you probably will say “There is no cache info in sysfs!”. That’s true. :-) Because there is no “next-level-cache” in machine virt’s default device tree. Function cache_shared_cpu_map_setup will return error. You can see below log from dmesg: "Unable to detect cache hierarchy from DT for CPU 0" |
日期 | 用户名 | 字段 | 更改 |
---|---|---|---|
2021-10-13 16:14 | anolis_account | 新建问题 | |
2021-10-19 12:34 | geliwei-ali | 分派给 | => Shiloong |
2021-10-19 12:34 | geliwei-ali | 状态 | 新建 => 已分配 |
2021-10-28 10:58 | Shiloong | 注释已添加: 0000546 | |
2021-11-17 10:42 | Shiloong | 分派给 | Shiloong => xingxin830 |
2021-11-17 10:42 | Shiloong | 优先级 | 中 => 低 |