Why my kernel 2.6.34 failed?

[Bao, Zheng]

I recently build a new kernel, 2.6.34. But it failed to boot on my
coreboot with ACPI support. If I remove the ACPI, it can boot. So I
believe there is a bug hidden in the ASL script. And 2.6.33 works well.
The .config(s) are the same.

Do you guys have any suggestion?

Zheng

[Myles Watson]

> I recently build a new kernel, 2.6.34. But it failed to boot on my
> coreboot with ACPI support. If I remove the ACPI, it can boot. So I
> believe there is a bug hidden in the ASL script. And 2.6.33 works well.
> The .config(s) are the same.
>
> Do you guys have any suggestion?

Failing log:
PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and
report a bug

Working log:
pci_root PNP0A03:00: ignoring host bridge windows from ACPI; boot with
"pci=use_crs" to use them

It looks like they changed the default.  If you boot with pci=nocrs on the
new kernel does it boot?  With pci=use_crs on the old one does it fail?

It could be something else, but since there are a lot of these messages:

pci 0000:00:01.0: no compatible bridge window for [io  0x1000-0x1fff]
pci 0000:00:01.0: no compatible bridge window for [mem
0xd0000000-0xd00fffff]
pci 0000:00:01.0: no compatible bridge window for [mem 0xe0000000-0xefffffff
64bit pref]

It seems like a likely candidate.

Thanks,
Myles

[yhlu]

On Wed, Jun 23, 2010 at 8:08 PM, Bao, Zheng  wrote:
> I recently build a new kernel, 2.6.34. But it failed to boot on my
> coreboot with ACPI support. If I remove the ACPI, it can boot. So I
> believe there is a bug hidden in the ASL script. And 2.6.33 works well.
> The .config(s) are the same.
>
> Do you guys have any suggestion?

for 2.6.34, please boot with pci=nocrs. if it works

you could have problem with DSDT,  you need to have correct _CRS.

Yinghai

[Bao, Zheng]

Yes, it works. I will have to figure how _CRS fails.

Thanks.
> -----Original Message-----
> From: yhlu [mailto:[e-mail]]
> Sent: Thursday, June 24, 2010 12:04 PM
> To: Bao, Zheng
> Cc: [e-mail]
> Subject: Re: [coreboot] Why my kernel 2.6.34 failed?
>
> On Wed, Jun 23, 2010 at 8:08 PM, Bao, Zheng  wrote:
> > I recently build a new kernel, 2.6.34. But it failed to boot on my
> > coreboot with ACPI support. If I remove the ACPI, it can boot. So I
> > believe there is a bug hidden in the ASL script. And 2.6.33 works

well.
> > The .config(s) are the same.
> >
> > Do you guys have any suggestion?
>
> for 2.6.34, please boot with pci=nocrs. if it works
>
> you could have problem with DSDT,  you need to have correct _CRS.
>
> Yinghai