/ 详情

【openEuler 20.09】【虚拟化】PMU nmi watchdog 不支持cpu热插

Accepted
Bug
Opened this issue  
2020-08-31 10:07

【环境信息】
NAME="openEuler"
VERSION="20.03 (LTS)"
ID="openEuler"
VERSION_ID="20.03"
PRETTY_NAME="openEuler 20.03 (LTS)"
ANSI_COLOR="0;31"
注:该特性是在20.03版本上,替换了新内核后进行的测试。
内核版本:Linux version 4.19.133+ (root@localhost.localdomain) (gcc version 7.3.0 (GCC)) #9 SMP Tue Aug 25 17:59:57 CST 2020
【复现步骤】
1、按要求配置虚拟机NMI watchdog(启动参数正确配置)。
2、创建启动虚拟机。
3、对虚拟机进行热插CPU操作。
4、加载触发中断的内核模块,关闭中断,触发虚拟机内部hardlockup。
【预期结果】
NMI watchdog成功执行,触发panic后,虚拟机正常重启。
【实际结果】
NMI watchdog未能成功执行,虚拟机没有重启。
【相关日志信息】
NMI watchdog: CPU38 freq probed as 0 HZ

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zhk created缺陷
zhk set related repository to openEuler/kernel
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KuhnChen set assignee to alexchen
KuhnChen set priority to Serious
KuhnChen changed priority from Serious to Main
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alexchen changed issue state from 待办的 to 已完成
zhk changed issue state from 已完成 to 已验收

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