KB2144968 - ESXi 6.0 U2 PSOD bug

[Christer]

Hi

Just wanted to say that we encountered the ESXi 6.0 Update 2 bug, https://kb.vmware.com/kb/2144968, that Gostev described in his "The word from Gostev" the previous two weeks.
We have a ship with a DELL Vertex onboard, where we have 2 blades running ESXi 6.0.0 Update 2, build 3620759. Veeam is a virtual server running on one of the blades. This VM has Hardware version 11, and VMXNET3 network adapter.
The Vertex also has a 10GbE internal network. So far we have solved this temporarily by this step: "Disable hardware LRO for VMXNET3 on the ESXi host".

The Veeam Server is running Windows Server 2012 R2, and I tried to find if "The virtual machines have Large Receive Offload (LRO) for VMXNET3 NICs enabled", but all I can find on
vmxnet3 Ethernet Adapter Properties in the OS is "Large Send Offload V2", not "Large Receive Offload". Maybe I am looking in the wrong place.

There is no Veeam supportcase for this incident.

Hope VMware gets better quality assurance in the future.

Regards,
Christer

[Gostev]

Thanks for the heads up, Christer!

[NoGoh]

Hi Christer,

This appears to be enabled by default both at the VMXNET3 Driver and the VMKernel levels.

https://pubs.vmware.com/vsphere-60/inde ... 3DC13.html

To quote:
"To benefit from the performance improvement of LRO, enable LRO along the data path on an ESXi host including VMkernel and guest operating system. By default, LRO is enabled in the VMkernel and in the VMXNET3 virtual machine adapters."

Regards,

NoGoh

[ITP-Stan]

After Gostev's word, I quickly disabled it on most of the ESXi 6.0 U2 hosts.
Much appreciated this kind of news in your "Word".

[Pat490]

new Patch is available about PSOD bug:
http://www.virten.net/2016/05/esxi-6-0- ... d-3825889/

[Zew]

VMwares QA has hit the fan lately. I've yet to see a reliable build of vSphere 6.

Every time they say nows the time to update I hear of another issue that big. It's disheartening especially since I want to try out the standalone web gui on teh new ESI hosts.

[homerjnick]

VMwares QA has hit the fan lately. I've yet to see a reliable build of vSphere 6.

Every time they say nows the time to update I hear of another issue that big. It's disheartening especially since I want to try out the standalone web gui on teh new ESI hosts.

I have the new web host fling 8.1 installed and it rocks...makes managing standalone ESXi 6 lovely...