5.4: pci_link problem on 440BX

[Eugene Grosbein]

On Fri, Dec 02, 2005 at 05:32:14PM -0500, John Baldwin wrote:

> > > We shouldn't print that message unless pci_link is enabled.  When
> > > pci_link is disabled we shouldn't even be looking at PRT entries.  Can
> > > you try booting a 6.0-snapshot CD and seeing if it works ok?
> >
> > Now 6.0 boots to multiuser mode with ACPI fully enabled or fully disabled.
> > make buildworld cannot be completed with ACPI - still silent hang
> > of userland and no console switching (keyboard leds do switch and
> > KDB works).
> >
> > 6.0's GENERIC does not boot to single user with
> > debug.acpi.disabled="pci_link", fatal trap 12 occures: page fault while in
> > kernel mode,
> > fault virtual address 0x0, supervisor read, page not present
> > in acpi_pci_link_lookup+0x26.
> 
> I think I know what this is and this patch probably fixes the panic in the
> case that you use 'debug.acpi.disabled="pci_link"'
> 
> --- //depot/vendor/freebsd/src/sys/dev/acpica/acpi_pci_link.c   2005/11/23 16:40:40
> +++ //depot/user/jhb/acpipci/dev/acpica/acpi_pci_link.c 2005/12/02 22:28:08
> @@ -1011,6 +1011,9 @@
>  {
>         struct link *link;
> 
> +       if (acpi_disabled("pci_link"))
> +               return (PCI_INVALID_IRQ);
> +
>         ACPI_SERIAL_BEGIN(pci_link);
>         link = acpi_pci_link_lookup(dev, index);
>         if (link == NULL)

I'll try this patch a bit later.

> 
> How does the 6.0 install CD do on your machine both with ACPI enabled and disabled?

I've just installed 6.0-RELEASE again.
I booted it using [default] option (e.g. with ACPI enabled)
and installation ran smoothly. However, I could not extract
/usr/ports/distfiles/gettext-0.14.5.tar.gz, /usr/ports is mounted
from 4.11 installation. All disk activity stopped and kernel
repeatedly wrote something about "DANGER Will Robinson !!",
I think it was from /usr/src/sys/dev/ata/ata-queue.c

I rebooted with ACPI disabled and the problem disappeared.
Now I'm going to test 'debug.acpi.disabled="pci_link"' case. 

Eugene Grosbein