1.问题描述 描述1：修复内核在设置了 tcp_thin_linear_timeouts 配置参数时，频繁出现 TCP高频重传问题 2.软件包修复版本 ·银河麒麟高级服务器操作系统（兼容版） V10 (aarch64) kernel-debug-devel-4.19.91-26.el8.ks8.06或以上版本 kernel-debug-modules-internal-4.19.91-26.el8.ks8.06或以上版本 kernel-devel-4.19.91-26.el8.ks8.06或以上版本 kernel-4.19.91-26.el8.ks8.06或以上版本 kernel-tools-4.19.91-26.el8.ks8.06或以上版本 kernel-debug-core-4.19.91-26.el8.ks8.06或以上版本 kernel-debug-modules-extra-4.19.91-26.el8.ks8.06或以上版本 kernel-abi-whitelists-4.19.91-26.el8.ks8.06或以上版本 kernel-debug-modules-4.19.91-26.el8.ks8.06或以上版本 kernel-modules-4.19.91-26.el8.ks8.06或以上版本 python3-perf-4.19.91-26.el8.ks8.06或以上版本 kernel-tools-libs-devel-4.19.91-26.el8.ks8.06或以上版本 kernel-core-4.19.91-26.el8.ks8.06或以上版本 bpftool-4.19.91-26.el8.ks8.06或以上版本 kernel-headers-4.19.91-26.el8.ks8.06或以上版本 kernel-debug-4.19.91-26.el8.ks8.06或以上版本 kernel-modules-extra-4.19.91-26.el8.ks8.06或以上版本 perf-4.19.91-26.el8.ks8.06或以上版本 kernel-tools-libs-4.19.91-26.el8.ks8.06或以上版本 kernel-modules-internal-4.19.91-26.el8.ks8.06或以上版本 ·银河麒麟高级服务器操作系统（兼容版） V10 (x86_64) kernel-debug-devel-4.19.91-26.el8.ks8.06或以上版本 kernel-devel-4.19.91-26.el8.ks8.06或以上版本 kernel-debug-core-4.19.91-26.el8.ks8.06或以上版本 kernel-abi-whitelists-4.19.91-26.el8.ks8.06或以上版本 kernel-debug-modules-internal-4.19.91-26.el8.ks8.06或以上版本 kernel-debuginfo-common-x86_64-4.19.91-26.el8.ks8.06或以上版本 perf-4.19.91-26.el8.ks8.06或以上版本 kernel-tools-libs-4.19.91-26.el8.ks8.06或以上版本 kernel-4.19.91-26.el8.ks8.06或以上版本 kernel-tools-4.19.91-26.el8.ks8.06或以上版本 kernel-modules-4.19.91-26.el8.ks8.06或以上版本 kernel-debug-modules-4.19.91-26.el8.ks8.06或以上版本 python3-perf-4.19.91-26.el8.ks8.06或以上版本 kernel-core-4.19.91-26.el8.ks8.06或以上版本 bpftool-4.19.91-26.el8.ks8.06或以上版本 kernel-headers-4.19.91-26.el8.ks8.06或以上版本 kernel-debug-4.19.91-26.el8.ks8.06或以上版本 kernel-modules-internal-4.19.91-26.el8.ks8.06或以上版本 kernel-debug-modules-extra-4.19.91-26.el8.ks8.06或以上版本 kernel-tools-libs-devel-4.19.91-26.el8.ks8.06或以上版本 kernel-modules-extra-4.19.91-26.el8.ks8.06或以上版本 3.修复方法 方法一：配置源进行升级安装 1.打开软件包源配置文件，根据仓库地址进行修改。 仓库源地址： 银河麒麟高级服务器操作系统（兼容版） V10 aarch64:https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/aarch64/ x86_64:https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/x86_64/ 2.配置完成后执行更新命令进行升级，命令如下： yum update Packagename 方法二：下载安装包进行升级安装 通过软件包地址下载软件包，使用软件包升级命令根据受影响的软件包 列表进行升级安装, 命令如下： yum install Packagename 4.软件包下载地址 ·银河麒麟高级服务器操作系统（兼容版） V10 kernel(aarch64)软件包下载地址: https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/aarch64/Packages/bpftool-4.19.91-26.el8.ks8.06.aarch64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/aarch64/Packages/kernel-4.19.91-26.el8.ks8.06.aarch64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/aarch64/Packages/kernel-abi-whitelists-4.19.91-26.el8.ks8.06.noarch.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/aarch64/Packages/kernel-core-4.19.91-26.el8.ks8.06.aarch64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/aarch64/Packages/kernel-debug-4.19.91-26.el8.ks8.06.aarch64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/aarch64/Packages/kernel-debug-core-4.19.91-26.el8.ks8.06.aarch64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/aarch64/Packages/kernel-debug-devel-4.19.91-26.el8.ks8.06.aarch64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/aarch64/Packages/kernel-debug-modules-4.19.91-26.el8.ks8.06.aarch64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/aarch64/Packages/kernel-debug-modules-extra-4.19.91-26.el8.ks8.06.aarch64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/aarch64/Packages/kernel-debug-modules-internal-4.19.91-26.el8.ks8.06.aarch64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/aarch64/Packages/kernel-devel-4.19.91-26.el8.ks8.06.aarch64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/aarch64/Packages/kernel-headers-4.19.91-26.el8.ks8.06.aarch64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/aarch64/Packages/kernel-modules-4.19.91-26.el8.ks8.06.aarch64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/aarch64/Packages/kernel-modules-extra-4.19.91-26.el8.ks8.06.aarch64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/aarch64/Packages/kernel-modules-internal-4.19.91-26.el8.ks8.06.aarch64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/aarch64/Packages/kernel-tools-4.19.91-26.el8.ks8.06.aarch64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/aarch64/Packages/kernel-tools-libs-4.19.91-26.el8.ks8.06.aarch64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/aarch64/Packages/kernel-tools-libs-devel-4.19.91-26.el8.ks8.06.aarch64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/aarch64/Packages/perf-4.19.91-26.el8.ks8.06.aarch64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/aarch64/Packages/python3-perf-4.19.91-26.el8.ks8.06.aarch64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/aarch64/Packages/bpftool-4.19.91-26.el8.ks8.06.aarch64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/aarch64/Packages/kernel-4.19.91-26.el8.ks8.06.aarch64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/aarch64/Packages/kernel-abi-whitelists-4.19.91-26.el8.ks8.06.noarch.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/aarch64/Packages/kernel-core-4.19.91-26.el8.ks8.06.aarch64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/aarch64/Packages/kernel-debug-4.19.91-26.el8.ks8.06.aarch64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/aarch64/Packages/kernel-debug-core-4.19.91-26.el8.ks8.06.aarch64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/aarch64/Packages/kernel-debug-devel-4.19.91-26.el8.ks8.06.aarch64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/aarch64/Packages/kernel-debug-modules-4.19.91-26.el8.ks8.06.aarch64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/aarch64/Packages/kernel-debug-modules-extra-4.19.91-26.el8.ks8.06.aarch64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/aarch64/Packages/kernel-debug-modules-internal-4.19.91-26.el8.ks8.06.aarch64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/aarch64/Packages/kernel-devel-4.19.91-26.el8.ks8.06.aarch64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/aarch64/Packages/kernel-headers-4.19.91-26.el8.ks8.06.aarch64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/aarch64/Packages/kernel-modules-4.19.91-26.el8.ks8.06.aarch64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/aarch64/Packages/kernel-modules-extra-4.19.91-26.el8.ks8.06.aarch64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/aarch64/Packages/kernel-modules-internal-4.19.91-26.el8.ks8.06.aarch64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/aarch64/Packages/kernel-tools-4.19.91-26.el8.ks8.06.aarch64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/aarch64/Packages/kernel-tools-libs-4.19.91-26.el8.ks8.06.aarch64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/aarch64/Packages/kernel-tools-libs-devel-4.19.91-26.el8.ks8.06.aarch64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/aarch64/Packages/perf-4.19.91-26.el8.ks8.06.aarch64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/aarch64/Packages/python3-perf-4.19.91-26.el8.ks8.06.aarch64.rpm kernel(x86_64)软件包下载地址: https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/x86_64/Packages/bpftool-4.19.91-26.el8.ks8.06.x86_64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/x86_64/Packages/kernel-4.19.91-26.el8.ks8.06.x86_64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/x86_64/Packages/kernel-abi-whitelists-4.19.91-26.el8.ks8.06.noarch.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/x86_64/Packages/kernel-core-4.19.91-26.el8.ks8.06.x86_64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/x86_64/Packages/kernel-debug-4.19.91-26.el8.ks8.06.x86_64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/x86_64/Packages/kernel-debug-core-4.19.91-26.el8.ks8.06.x86_64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/x86_64/Packages/kernel-debug-devel-4.19.91-26.el8.ks8.06.x86_64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/x86_64/Packages/kernel-debug-modules-4.19.91-26.el8.ks8.06.x86_64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/x86_64/Packages/kernel-debug-modules-extra-4.19.91-26.el8.ks8.06.x86_64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/x86_64/Packages/kernel-debug-modules-internal-4.19.91-26.el8.ks8.06.x86_64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/x86_64/Packages/kernel-debuginfo-common-x86_64-4.19.91-26.el8.ks8.06.x86_64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/x86_64/Packages/kernel-devel-4.19.91-26.el8.ks8.06.x86_64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/x86_64/Packages/kernel-headers-4.19.91-26.el8.ks8.06.x86_64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/x86_64/Packages/kernel-modules-4.19.91-26.el8.ks8.06.x86_64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/x86_64/Packages/kernel-modules-extra-4.19.91-26.el8.ks8.06.x86_64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/x86_64/Packages/kernel-modules-internal-4.19.91-26.el8.ks8.06.x86_64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/x86_64/Packages/kernel-tools-4.19.91-26.el8.ks8.06.x86_64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/x86_64/Packages/kernel-tools-libs-4.19.91-26.el8.ks8.06.x86_64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/x86_64/Packages/kernel-tools-libs-devel-4.19.91-26.el8.ks8.06.x86_64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/x86_64/Packages/perf-4.19.91-26.el8.ks8.06.x86_64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/x86_64/Packages/python3-perf-4.19.91-26.el8.ks8.06.x86_64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/x86_64/Packages/bpftool-4.19.91-26.el8.ks8.06.x86_64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/x86_64/Packages/kernel-4.19.91-26.el8.ks8.06.x86_64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/x86_64/Packages/kernel-abi-whitelists-4.19.91-26.el8.ks8.06.noarch.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/x86_64/Packages/kernel-core-4.19.91-26.el8.ks8.06.x86_64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/x86_64/Packages/kernel-debug-4.19.91-26.el8.ks8.06.x86_64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/x86_64/Packages/kernel-debug-core-4.19.91-26.el8.ks8.06.x86_64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/x86_64/Packages/kernel-debug-devel-4.19.91-26.el8.ks8.06.x86_64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/x86_64/Packages/kernel-debug-modules-4.19.91-26.el8.ks8.06.x86_64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/x86_64/Packages/kernel-debug-modules-extra-4.19.91-26.el8.ks8.06.x86_64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/x86_64/Packages/kernel-debug-modules-internal-4.19.91-26.el8.ks8.06.x86_64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/x86_64/Packages/kernel-debuginfo-common-x86_64-4.19.91-26.el8.ks8.06.x86_64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/x86_64/Packages/kernel-devel-4.19.91-26.el8.ks8.06.x86_64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/x86_64/Packages/kernel-headers-4.19.91-26.el8.ks8.06.x86_64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/x86_64/Packages/kernel-modules-4.19.91-26.el8.ks8.06.x86_64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/x86_64/Packages/kernel-modules-extra-4.19.91-26.el8.ks8.06.x86_64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/x86_64/Packages/kernel-modules-internal-4.19.91-26.el8.ks8.06.x86_64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/x86_64/Packages/kernel-tools-4.19.91-26.el8.ks8.06.x86_64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/x86_64/Packages/kernel-tools-libs-4.19.91-26.el8.ks8.06.x86_64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/x86_64/Packages/kernel-tools-libs-devel-4.19.91-26.el8.ks8.06.x86_64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/x86_64/Packages/perf-4.19.91-26.el8.ks8.06.x86_64.rpm https://update.cs2c.com.cn/NS/V10/8U2/os/adv/lic/BaseOS-updates/x86_64/Packages/python3-perf-4.19.91-26.el8.ks8.06.x86_64.rpm 注：其他相关依赖包请到相同目录下载 5.修复验证 使用软件包查询命令，查看相关软件包版本是否与修复版本一致，如果版本一致，则说明修复成功。 sudo rpm -qa | grep Packagename