[syslinux] MEMDISK and Drive Fitness Test hangs in VirtualBox 3

[H. Peter Anvin]

On 08/16/2009 02:45 PM, H. Peter Anvin wrote:
> On 08/16/2009 12:53 PM, Kim Mik wrote:
>> A floppy image with Drive Fitness Test hangs in VirtualBox 3, while the same iso works fine in Qemu.
> 
> Report this to Sun, perhaps?

I have spent some time (way too much) looking at this, and for some
reason PC-DOS does a well-formed read request to address 0:0.  MEMDISK
dutifully executes the request, and wipes out the interrupt table.

I'm afraid I don't have time to track this down further at this time.

	-hpa

-- 
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel.  I don't speak on their behalf.