Re: 2.6.8.1-mm1 hangs on boot with ACPI

From: Pontus Fuchs
Date: Thu Aug 19 2004 - 06:46:15 EST


On Thu, 2004-08-19 at 08:49, Len Brown wrote:
> On Tue, 2004-08-17 at 04:55, Pontus Fuchs wrote:
> > Hi,
> >
> > After upgrading to 2.6.8.1-mm1 from plain 2.6.8.1 my machine does not
> > boot anymore. The last message i see is:
> >
> > ACPI: Processor [CPU0] (supports C1,C2,C3, 8 throttling states)
> >
> > In plain 2.6.8.1 the next messages would be:
> >
> > ACPI: Thermal Zone [THRM] (52 C)
> > Console: switching to colour frame buffer device 175x65
> > Linux agpgart interface v0.100 (c) Dave Jones
> > agpgart: Detected SiS 648 chipset
> >
> > Booting with acpi=off works fine. I have also tried pci=routeirq but
> > it
> > does not make any difference.
> >
> > The machine is an Asus L5c laptop.
>
> Please try booting with "pci=routeirq"
> If that doesn't work, please take stock 2.6.8.1 and apply the latest
> patch here:
> http://ftp.kernel.org/pub/linux/kernel/people/lenb/acpi/patches/release/2.6.8/
> and give it a go.
>
> This will bring your kernel up to the same ACPI patch that is in the -mm
> tree, but without all the other stuff in the mm tree.
>
> If it fails, then ACPI broke. If it works, then something in -mm broke
> ACPI.

Hi,

I found this another Asus laptop with intel chipset which also has
problems with the latest ACPI code, and I tried the same trick on my
machine, and now the machine boots again!

http://bugme.osdl.org/show_bug.cgi?id=3191

I have no clue what I'm actually doing so please don't consider the
patch a fix for the problem, but rather a way do show how to make the
symptom go away.

--- quirks.c.bak 2004-08-19 13:25:23.000000000 +0200
+++ quirks.c 2004-08-19 13:25:47.000000000 +0200
@@ -756,11 +756,13 @@
*/
static void __init quirk_sis_96x_smbus(struct pci_dev *dev)
{
+/*
u8 val = 0;
printk(KERN_INFO "Enabling SiS 96x SMBus.\n");
pci_read_config_byte(dev, 0x77, &val);
pci_write_config_byte(dev, 0x77, val & ~0x10);
pci_read_config_byte(dev, 0x77, &val);
+*/
}

Pontus


-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/