bug on BTX

[John Baldwin]

On Friday 22 September 2006 11:46, dick hoogendijk wrote:
> On 22 Sep Dominic Marks wrote:
> > CyberSans AirBort wrote:
> > >i have tested 6.2-BETA and the same problem still appear when i want to
> > >install it into compaq evo desktop; BTX HALTED.
> > Go into the BIOS, disable BIOS DMA transfers **. After that it will boot
> > normally. I have about 20 EVOs, which this change they run fine. This is
> > true of all versions of FreeBSD I have ever tried.
> 
> Still remains the question on why FreeBSD is not able to boot when bios
> DMA transfers are set set to on, while XP and linux just do what they're
> supposed to. It should not be necessary i.m.h.o.

Because other OS's run the BIOS in real mode, and we run it in vm86 mode and 
we don't emulate enough instructions in vm86 mode for the Compaq/HP BIOS.  
See my other e-mail.

-- 
John Baldwin