VirtualBox can't read VDI anymore

[Andrea Venturoli]

On 1/8/21 7:58 PM, Andrea Venturoli wrote:
> Hello.
> 
> I'm tracking the quarterly port branches and building my packages with 
> poudriere.
> Today I switched from 2020Q4 to 2021Q1 and upgraded VirtualBox from 
> 5.2.44_3 to 5.2.44_4.
> After that I can no longer start any guest.
> What I get:
>> VDI: error reading pre-header in '....vdi' (VERR_DEV_IO_ERROR).
>> VD: error VERR_VD_VDI_INVALID_HEADER opening image file '....vdi' 
>> (VERR_VD_VDI_INVALID_HEADER).
>> Failed to open image '....vdi' in read-write mode 
>> (VERR_VD_VDI_INVALID_HEADER).
>> AHCI: Failed to attach drive to Port0 (VERR_VD_VDI_INVALID_HEADER).
>>
>>
>> Result Code: NS_ERROR_FAILURE (0x80004005)
>> Component: ConsoleWrap
>> Interface: IConsole {872da645-4a9b-1727-bee2-5585105b9eed}
> 
> Any hint?
> 
> 
> 
> Does this have anything to do with the following:
>> emulators/virtualbox-ose: Turn off aio usage and make VirtualBox use 
>> generic
>> Unix implementation.

I can confirm reverting this change makes VirtualBox work again for me.
(Noted also on #168298).

  bye
	av.