Virtual machines abruptly shut down with an error similar to: MONITOR PANIC: vcpu-0:EPT misconfiguration
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Virtual machines abruptly shut down with an error similar to: MONITOR PANIC: vcpu-0:EPT misconfiguration


Article ID: 328057


Updated On:




This article describes a specific issue. If you experience all of the above symptoms, consult the sections below. If you experience some but not all of these symptoms, your issue is not related to this article. Search for your symptoms in the Knowledge Base, see Determining why a virtual machine was powered off or restarted (1019064) for a related issue, or file a Support Request. For more information, see Filing a Support Request in Customer Connect (2006985).

  • A virtual machine shuts down abruptly.
  • The virtual machine logs contain events similar to:

    MONITOR PANIC: vcpu-0:EPT misconfiguration: PA abc123abc
    Core dump with build build-260247
    Writing monitor corefile "/vmfs/volumes/abc123ab-abc123ab-abcd-abc123abc123/VirtualMachine01/vmware64-core0.gz"
    CoreDump: dumping core with superuser privileges


This is a known issue affecting ESXi/ESX 4.1 and ESXi 5.0/5.1.

To resolve this issue, upgrade the system BIOS or firmware. For more information, review the hardware vendor's advisory or BIOS release notes:
Note: The preceding links were correct as of may 27, 2014. If you find a link is broken, provide feedback and a VMware employee will update the link.


To work around this issue on your version of ESXi/ESX when you cannot upgrade the BIOS on the server, install the applicable patch to disable Intel FlexPriority.

To disable Intel FlexPriority, install one of these patches:

Additional Information

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VMware ESXi 5.1, Patch ESXi510-201305401-BG: Updates esx-base
VMware ESXi 5.0, Patch ESXi500-201305401-BG: Updates esx-base
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VMware ESXi 4.1, Patch Release ESXi410-201307001
VMware ESX 4.0, Patch Release ESX400-201310001
VMware ESXi 4.0, Patch Release ESXi400-201310001
虚拟机突然关闭并显示类似于以下内容的错误消息:监视器不稳定: vcpu-0:EPT 配置错误 (MONITOR PANIC: vcpu-0:EPT misconfiguration)