There is a bug in the new Broadwell CPU's from Intel that can create PSOD on ESXi 5.5 and 6.0 and i looks like this.
There is an VMware KB on this Issue: https://kb.vmware.com/kb/2146388
The solution is a firmware/Bios upgrade from the hardware vendor, I haven't check if there are any of the hardware vendors that have made updates that fixes this issue.
HPE has a fix for this, but it's not public available yet.
Other hardware vendors might also have fixes they have not made available.