Re: [Qemu-devel] [PATCH] pci: fix bridge IO/BASE

["Michael S. Tsirkin" <mst@redhat.com>]

On Sun, Mar 04, 2012 at 02:41:33PM +0200, Avi Kivity wrote:
> On 03/04/2012 02:38 PM, Blue Swirl wrote:
> > >>
> > >> This unassigned memory exception is triggered because CMD646 IDE I/O
> > >> registers are not accessible:
> > >>
> > >> (qemu) info pci
> > >>   Bus  0, device   5, function 0:
> > >>     IDE controller: PCI device 1095:0646
> > >>       IRQ 1.
> > >>       BAR0: I/O at 0xffffffffffffffff [0x0006].
> > >>       BAR1: I/O at 0xffffffffffffffff [0x0002].
> > >>       BAR2: I/O at 0xffffffffffffffff [0x0006].
> > >>       BAR3: I/O at 0xffffffffffffffff [0x0002].
> > >>       BAR4: I/O at 0xffffffffffffffff [0x000e].
> > >>       id ""
> > >
> > > The BARs are not initialized, so they aren't accessible.
> > >
> > > But perhaps the dump was not taken at the point of failure, can you
> > > provide a relevant dump if so?
> >
> > No, this is after failure.
> 
> I don't see why the guest expects the BARs to work then.

I don't belive it does - it probably got hang before
initializing BARs.

> -- 
> error compiling committee.c: too many arguments to function