Date: Fri, 3 Sep 2004 02:54:54 +0200 From: Markus Brueffer <markus@brueffer.de> To: Nate Lawson <nate@root.org> Cc: current@freebsd.org Subject: Re: Interrupt storm on uhciX with acpi_pci_link.c 1.24.2.3 Message-ID: <200409030255.00577.markus@brueffer.de> In-Reply-To: <413768A9.4020904@root.org> References: <413768A9.4020904@root.org>
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Hi Nate,
On Thursday 02 September 2004 20:38, Nate Lawson wrote:
> Your ASL is at fault here. It defines a mixed set of APIC and PCI link
> irq devices. (See the _PRT for PCI0, the APIC object). The MPtable is
> correct. Here is the part that is wrong:
>
> Name (APIC, Package (0x18)
> {
> ...
> Package (0x04)
> {
> 0x0004FFFF,
> 0x03,
> \_SB.LNKC,
> 0x00
> },
>
> This one should be:
>
> Package (0x04)
> {
> 0x0004FFFF,
> 0x03,
> 0x00,
> 0x12,
> }
>
> It should be possible to add this to /boot/loader.conf:
>
> hw.acpi.pci.link.0.4.3.irq=3D"18"
As you already expected, this doesn't work.
> But since 18 won't be in your list of valid irqs, your best bet is to
> patch your ASL as above and recompile with iasl.=20
Patching the ASL did the trick. Thank you very much!
While compiling tha ASL I got the following warning:
markus-cuv4x-d.asl.patched 316: Method (\_WAK, 1, NotSerialized)
Warning 2026 - ^ Reserved method must=20
return a value (_WAK)
Maybe this information is of some use for you.
> Perhaps a BIOS upgrade will have this fixed?
I already have the latest BIOS installed and I doubt that there will be a n=
ew=20
one in the future (the current one is from mid 2002) :(
Best regards,
Markus
=2D-=20
Markus Brueffer | GPG-Key: http://people.FreeBSD.org/~markus/markus.asc
markus@brueffer.de | FP: 3F9B EBE8 F290 E5CC 1447 8760 D48D 1072 78F8 A8D4
markus@FreeBSD.org | FreeBSD: The Power to Serve!
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