Se você estiver usando CPUs Intel E5, verifique este artigo da base de conhecimento: link
Symptoms
When running a virtual machine with Windows 2008 R2, Red Hat Enterprise Linux or Solaris 10 64-bit, you may experience one of these symptoms: •Windows 2008 R2 blue screen events:
0x0000000a - IRQL_NOT_LESS_OR_EQUAL 0x0000001a - MEMORY_MANAGEMENT 0x000000fc - ATTEMPTED_EXECUTE_OF_NOEXECUTE_MEMORY
Cause
At the time of publication (September 10, 2014), these processors are identified as being affected: •Processors named as Intel® Xeon® Processor E5-#### v2, where #### is a 4-digit number, optionally followed by a letter. •Processors named as Intel® Xeon® Processor E7-#### v2, where #### is a 4-digit number. •Processors named as Intel® Xeon® Processor E3-12## v2, where ## is a 2-digit number optionally followed by a letter.
Resolution
This is a known issue affecting VMware ESXi. Contact your vendor for an updated BIOS for your hardware to resolve this issue and provide reference to the relevant Intel Errata: •CA135 - A MOV to CR3 When EPT is Enabled May Lead to an Unexpected Page Fault or an Incorrect Page Translation in the Errata section of the Intel Xeon Processor E5 v2 Product Family document. •CF124 - Incorrect Page Translation when EPT is enabled in the Errata section of the Intel Xeon Processor E7 v2 Product Family document.
Note: The preceding links were correct as of July 11, 2014. If you find a link is broken, provide feedback and a VMware employee will update the link.
If there is no BIOS update available for your platform, use one of the following to fix this issue:
Upgrades: This issue is resolved in ESXi 5.5 Update 2, available at VMware Downloads. For more information, see VMware ESXi 5.5 Update 2 Release Notes.
Currently, there is no resolution for ESXi 5.1 hosts.
Se você estiver usando essas CPUs, sugiro que você atualize o BIOS de seus hosts ou atualize o ESXi para a Atualização 5.5 da versão 5.5.