Release Notes

Solution: This is a known issue.
CPU status shown as dormant in the vCenter server
Hardware Health Status page
Description: The dormant CPU state indicates that the CPU is currently idle. However the same
status is indicated even when the processors are used.
Applies to: ESXi 5.5
Solution: This is a known issue. For more information, refer to the VMware Knowledge Base
article 1023032.
Migration of virtual machines fails between Intel Xeon
E5-26xx and E5-26xx v2 series processors
Description: When the virtual machine hardware version is less than or equal to 8, enhanced
vMotion fails to migrate between different processor series.
Applies to: ESXi 5.x
Solution: Update the virtual machine hardware version to greater than 8.
Systems running ESXi may freeze and display a purple
screen of death or PSOD screen if the max CPUID value
limit token is enabled in the BIOS
Description: In some Dell systems, the BIOS provides a token Max CPUID Value Limit to support
older operating systems on newer processors. VMware ESXi does not support this
BIOS token.
Applies to: ESXi 5.x
Solution: The default value of the Max CPUID Value Limit BIOS token is disabled. Do not
enable the token for systems running ESXi.
PCI devices listed as unknown under PCI passthrough
section of vSphere client
Description: Few PCI devices may be listed as unknown in PCI passthrough section for specific
PowerEdge servers.
Applies to: ESXi 5.x
Solution: This is a known issue. The lack of specific device IDs in the pci.ids file causes the
corresponding PCI devices to be listed as unknown. There is no functionality loss.
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