Re: 2.6.33: pci 0000:00:00.0: address space collision / spontaenous reboots [full dmesg]

[Justin Piszcz]

On Fri, 12 Mar 2010, Yinghai Lu wrote:

> On Fri, Mar 12, 2010 at 12:02 PM, Justin Piszcz <jpiszcz@xxxxxxxxxxxxxxx> wrote:
> > On Fri, 12 Mar 2010, Yinghai Lu wrote:
> >
> > > On Fri, Mar 12, 2010 at 5:10 AM, Justin Piszcz <jpiszcz@xxxxxxxxxxxxxxx>
> > > wrote:
> > > > [    0.112379] pci 0000:00:00.0: reg 1c: [mem 0xe0000000-0xffffffff
> > > > 64bit]
> > >
> > > > [    0.133510] PCI: pci_cache_line_size set to 64 bytes
> > > > [    0.133515] pci 0000:00:00.0: BAR 3: reserving [mem
> > > > 0xe0000000-0xffffffff
> > > > flags 0x120204] (d=0, p=0)
> > > > [    0.133518] pci 0000:00:00.0: address space collision: [mem
> > > > 0xe0000000-0xffffffff 64bit] already in use
> > > > [    0.133522] pci 0000:00:00.0: can't reserve [mem 0xe0000000-0xffffffff
> > > > 64bit]
> > > > [    0.137020] system 00:09: [mem 0xe0000000-0xefffffff] has been
> > > > reserved
> > > > [    0.172034] pci_bus 0000:00: resource 0 [io  0x0000-0xffff]
> > > > [    0.172035] pci_bus 0000:00: resource 1 [mem 0x00000000-0xffffffff]
> > >
> > > looks like the silicon report wrong size in that BAR3
> > >
> > > YH
> >
> > Hi,
> >
> > Is there anyway to work around this?  Or is it a bad motherboard?
>
> maybe one new BIOS could hide that register
Hi,

It is using the latest F8c BIOS:
http://www.gigabyte.us/Products/Motherboard/Products_Overview.aspx?ProductID=3007

Other (earlier) bios' have been tested, that did not help either.

Is there anyway to to the kernel not to touch that range of memory?
0xe0000000-0xffffffff?

Justin.

> or use pci quirk to hide that in OS.
>
> may need to access the chipset doc.
>
> YH