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Date: Thu, 24 Mar 2005 03:07:51 -0800
From: Andrew Morton <akpm@osdl.org>
To: Peter Baumann <waste.manager@gmx.de>
Cc: linux-kernel@vger.kernel.org, Greg KH <greg@kroah.com>
Subject: Re: [Bug] invalid mac address after rebooting (kernel 2.6.11.5)
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Peter Baumann <waste.manager@gmx.de> wrote:
>
> > 
> > The only PCI change I see is
> > 
> > --- drivers/pci/pci.c   22 Jan 2005 03:20:37 -0000      1.71
> > +++ drivers/pci/pci.c   24 Feb 2005 18:02:37 -0000      1.72
> > @@ -268,7 +268,7 @@
> >                 return -EIO; 
> >  
> >         pci_read_config_word(dev,pm + PCI_PM_PMC,&pmc);
> > -       if ((pmc & PCI_PM_CAP_VER_MASK) != 2) {
> > +       if ((pmc & PCI_PM_CAP_VER_MASK) > 2) {
> >                 printk(KERN_DEBUG
> >                        "PCI: %s has unsupported PM cap regs version (%u)\n",
> >                        dev->slot_name, pmc & PCI_PM_CAP_VER_MASK);
> > 
> > and you're not getting that message (are you?)
> > 
> 
> Reverting the above patch solved it. But _now_ I get the message.
> (dmesg output with above patch reverted at the end of the mail)

Greg, help!

> > Nothing much in arch/i386..
> > 
> > There were some ACPI changes, which is always a worry ;) Does that machine
> > run OK without ACPI support?  If so, could you determine whether disabling
> > ACPI fixes things up?
> >
> Hm. I tried it with 2.6.11.5 by appending  acpi=off  at the cmdline but
> as I remember it hasn't changed anything. Or do I have to specify
> someting else at the commandline to deactivate acpi?

We like to change these things so people send us more email.

According to Documentation/kernel-parameters.txt, acpi=off should still work.