Date: Wed, 4 Jan 2006 13:13:27 -0500 From: John Baldwin <jhb@freebsd.org> To: freebsd-acpi@freebsd.org, Anders Nordby <anders@freebsd.org> Subject: Re: i386/89545: Compaq DL 360 ACPI boot problem Message-ID: <200601041313.28226.jhb@freebsd.org> In-Reply-To: <200601041640.k04GeEVT027425@freefall.freebsd.org> References: <200601041640.k04GeEVT027425@freefall.freebsd.org>
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On Wednesday 04 January 2006 11:40 am, Anders Nordby wrote:
> The following reply was made to PR i386/89545; it has been noted by GNATS.
>
> From: Anders Nordby <anders@FreeBSD.org>
> To: John Baldwin <jhb@freebsd.org>
> Cc: bug-followup@freebsd.org, uralmetal@gmail.com
> Subject: Re: i386/89545: Compaq DL 360 ACPI boot problem
> Date: Wed, 4 Jan 2006 17:36:21 +0100
>
> --ikeVEW9yuYc//A+q
> Content-Type: text/plain; charset=3Diso-8859-1
> Content-Disposition: inline
> Content-Transfer-Encoding: 8bit
>
> Hi,
>
> On Tue, Jan 03, 2006 at 05:06:26PM -0500, John Baldwin wrote:
> > It does reference 'FAKE' in one of the _PRT entries sadly. You can try
> > removing it and compiling a custom dsdt to work around it. You could
> > also beat up Compaq for the crap BIOS. Do these machines have APICs on
> > them? They'd probably be a lot happier with APIC enabled if so.
> >
> > Package (0x04)
> > {
> > 0x0004FFFF,
> > 0x00,
> > FAKE,
> > 0x00
> > },
>
> I removed the section above, but if fails to compile:
>
> root@anderstest:~# iasl anderstest.asl-fixed
>
> Intel ACPI Component Architecture
> ASL Optimizing Compiler / AML Disassembler version 20041119 [Dec 31
> 2005]
> Copyright (C) 2000 - 2004 Intel Corporation
> Supports ACPI Specification Revision 2.0c
>
> Non-ASCII character: 0xD2 at offset 0xBB
> Non-ASCII character: 0xD2 at offset 0x189
> Non-ASCII character: 0xD2 at offset 0x7B3
> 3 non-ASCII characters found in input file, appears to be binary
> Error 1082 - Invalid characters found in file anderstest.asl-fixed
>
> In the ASL, there is 0xD2 which is =D2, used for Creator ID in the RSDT,
> FACP and SPCR sections. I changed that to just ASL like it looks like on
> my Dell laptop (Creator ID=3DASL). Then I can compile. Booting with the
> custom dsdt, I get a page fault. Log attached.
>
> I will check to see if I can change anything useful in the BIOS
> tomorrow, but I doubt it. :-/
Hmm, ok. I'd really need to know what source file:line that page fault map=
s=20
to (you can use gdb to find that if you have a kernel.debug). OTOH, you ca=
n=20
also try this patch which just prints a warning for bogus _PRT entries when=
=20
we bump reference counts and only panics if we actually try to route an=20
interrupt via the busted link device. You can try this w/o the custom DSDT.
Index: acpi_pci_link.c
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
RCS file: /usr/cvs/src/sys/dev/acpica/acpi_pci_link.c,v
retrieving revision 1.51
diff -u -r1.51 acpi_pci_link.c
=2D-- acpi_pci_link.c 5 Dec 2005 19:50:00 -0000 1.51
+++ acpi_pci_link.c 4 Jan 2006 18:07:17 -0000
@@ -625,8 +625,11 @@
/* Bump the reference count. */
ACPI_SERIAL_BEGIN(pci_link);
link =3D acpi_pci_link_lookup(dev, index);
=2D if (link =3D=3D NULL)
=2D panic("%s: apparently invalid index %d", __func__, index);
+ if (link =3D=3D NULL) {
+ device_printf(dev, "apparently invalid index %d\n", index);
+ ACPI_SERIAL_END(pci_link);
+ return;
+ }
link->l_references++;
if (link->l_routed)
pci_link_interrupt_weights[link->l_irq]++;
> Fatal trap 12: page fault while in kernel mode
> cpuid =3D 0; apic id =3D 00
> fault virtual address =3D 0x1c
> fault code =3D supervisor read, page not present
> instruction pointer =3D 0x20:0xc0a6d69d
Do a 'l *0xc0a6d69d' in 'gdb kernel.debug' if you can to see what this=20
corresponds to.
=2D-=20
John Baldwin <jhb@FreeBSD.org> <>< http://www.FreeBSD.org/~jhb/
"Power Users Use the Power to Serve" =3D http://www.FreeBSD.org
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