FreeBSD 5.4/6.0 on Virtual PC 7?

[John Baldwin]

On Friday 02 December 2005 12:56 pm, David Paul Zimmerman wrote:
> >> ad0: 5119MB <Virtual HD/1. 1> [10402/16/63] at ata0-master WDMA2
> >> Mounting root from ufs:/dev/ad0s1a
> >>
> >> The "PNP" errors look relevant, but I'm not enough of a device kinda
> >> guy to interpret them.
> >
> > You can ignore them.  They are for your keyboard and com ports and
> > such and
> > those were already probed via hints.  Your PCI device at 7.2 is very
> > weird as
> > it seems to return 0000's for everything which is odd.  You might
> > consider
> > disabling PCI power stuff (I think it's hw.pci.do_powerstate=0 or some
> > such,
> > check sysctl for a sysctl with 'power' and 'pci' in the name and set
> > it to 0
> > in the loader and see if that makes a difference on 5.x and 6.0).
>
> Finally got some time to work on this again.  I tried both
> hw.pci.do_powerstate=0 and hw.pci.do_powerstate=1 on my 5.4 virtual
> system, no difference.  (In fact, =0 appears to be the default.)  I
> can't get 6.0 installed standalone right now to check what it thinks --
> for the reasons of this thread -- but seems to be the same symptoms.

Hmm, it might be something specific in the ata(4) driver as it has changed 
drastically between 4.x and 5.x and 6.x.  You can try talking to sos at .  He 
might need verbose dmesg's from both 4.11 and 6.0 to try to debug it further.

-- 
John Baldwin <jhb at FreeBSD.org>  <><  http://www.FreeBSD.org/~jhb/
"Power Users Use the Power to Serve"  =  http://www.FreeBSD.org