pcib allocation failure

John Baldwin jhb at freebsd.org
Mon May 16 13:40:20 UTC 2011


On Sunday, May 15, 2011 8:50:04 pm deeptech71 at gmail.com wrote:
> On Sat, May 14, 2011 at 6:27 PM, deeptech71 at gmail.com
> <deeptech71 at gmail.com> wrote:
> > pcib1: <ACPI PCI-PCI bridge> at device 1.0 on pci0
> > pcib1: failed to allocate initial prefetch window: 0xd0000000-0xfaffffff
> >
> > this happens with a the r221862 kernel, but not with the r221309 kernel.
> > a quick search reveals something:
> > http://www.freebsd.org/cgi/query-pr.cgi?pr=143874 (i have no idea what
> > that is).
> 
> indeed, r221394 introduced the said behaviour by using a new PCI bus
> driver or something. with "nooptions NEW_PCIB", even the latest
> sources (r221970) do not exhibit the said behaviour. i conclude that
> the new PCI bus driver basically sux.

A more helpful approach would be to provide a verbose dmesg, devinfo -ur, and 
devinfo -rv output.

-- 
John Baldwin


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