ESXi VM does not boot in UEFI mode from 20190906 snapshot ISO

[Yuri Pankov]

Toomas Soome wrote:
> 
> 
>> On 18 Sep 2019, at 18:01, Yuri Pankov <yuripv at yuripv.net> wrote:
>>
>> I have tested several snapshot ISOs available for download:
>>
>> FreeBSD-13.0-CURRENT-amd64-20190822-r351363-disc1.iso - OK
>> FreeBSD-13.0-CURRENT-amd64-20190829-r351591-disc1.iso - OK
>> FreeBSD-13.0-CURRENT-amd64-20190906-r351901-disc1.iso - FAIL
>> FreeBSD-13.0-CURRENT-amd64-20190913-r352265-disc1.iso - FAIL
>>
>> FAIL being VM shutdown after loading kernel/modules and displaying "EFI framebuffer information".  Relevant messages in the VM log are rather unhelpful:
>>
>> 2019-09-18T14:47:12.397Z| vcpu-0| I125: Guest: Firmware has transitioned to runtime.
>> 2019-09-18T14:47:12.434Z| vcpu-0| I125: Msg_Post: Error
>> 2019-09-18T14:47:12.434Z| vcpu-0| I125: [msg.efi.exception] The firmware encountered an unexpected exception. The virtual machine cannot boot.
>>
>> Any hints on debugging this further?
> 
> Im not really sure about debugging; I can not tell about early kernel, but I’d check if the kernel/module locations conflict with efi memory map items…
> 
> The same issue can be seen with vmware fusion, it is not 100% repeatable but I’d say, 95%, starting grab_faults, perhaps ls or some other random command, and boot -v may actually start the system up.

OK.  It's 100% reproducible here, going from 20190829 (which works) to 
20190906 (which doesn't), so I was wondering if anything in 
r351591-r351901 range could be pointed at as a likely offender.