stable/9 panic Bad tailq NEXT(0xffffffff80e52660->tqh_last) != NULL

[John Baldwin]

On Tuesday, October 02, 2012 3:05:30 pm Sean Bruno wrote:
> On Mon, 2012-10-01 at 05:47 -0700, John Baldwin wrote:
> > Can you add extra printfs to see where exactly attach is failing?  I
> > would
> > start with the attach routine in sys/dev/acpica/acpi_pcib_pci.c:
> > 
> > 
> 
> hrm ... interesting side effects.  After adding my printf's I don't hit
> the panic any more.  :-)
> 
> I changed the ret val of acpi_pcib_pci_attach() and put in some
> instrumentation in acpi_pcib_attach().  The key value is that
> acpi_DeviceIsPresent() appears to be returning FALSE in this case.
> 
> patch used -->http://people.freebsd.org/~sbruno/acpi_pcib.txt

What happens if you just comment out the acpi_DeviceIsPresent() check?

-- 
John Baldwin