Date: Fri, 2 Dec 2005 17:32:14 -0500 From: John Baldwin <jhb@freebsd.org> To: Eugene Grosbein <eugen@kuzbass.ru> Cc: freebsd-acpi@freebsd.org Subject: Re: 5.4: pci_link problem on 440BX Message-ID: <200512021732.15866.jhb@freebsd.org> In-Reply-To: <20050513140240.GA25774@svzserv.kemerovo.su> References: <20050513140240.GA25774@svzserv.kemerovo.su>
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On Friday 13 May 2005 10:02 am, Eugene Grosbein wrote:
> John Baldwin <jhb@FreeBSD.org> 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)
How does the 6.0 install CD do on your machine both with ACPI enabled and disabled?
--
John Baldwin <jhb@FreeBSD.org> <>< http://www.FreeBSD.org/~jhb/
"Power Users Use the Power to Serve" = http://www.FreeBSD.org
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