Re: [PATCH] x86/PCI: never allocate PCI MMIO resources below BIOS_END

[R. Andrew Bailey]

On 23/04/10 17:05 -0600, Bjorn Helgaas wrote:
> On Wednesday 21 April 2010 01:31:20 pm Andy Isaacson wrote:
> > On Tue, Apr 20, 2010 at 10:33:50PM -0700, Yinghai wrote:
> > > Update e820 at first, and later put them resource tree.
> > > Reserved that early, will not be allocated to unassigned PCI BAR
> > >
> > > v3: remove probe_roms() that is not needed, because whole range is reserved
> > > 	 already
> >
> > Test booted this patch series on the problematic t3400, seems to work
> > fine.  dmesg attached to bug 15744.
>
> Thanks for testing (again).  I'm not confident that this series is
> going to be successful, so I started looking for other approaches.
>
> I can't reproduce the exact problem you're seeing, but in my
> kludged-up attempt, the patch below is enough to keep us from
> assigning the space below 1MB to a device.
>
> Would you guys (Andy & Andy, what a coincidence :-)) mind giving
> it a try?  This is intended to work on top of current upstream,
> with no other patches required.
>
> Bjorn

Good news- that solved it. I tried Yinghai's patches saturday to no
avail (sorry it took me so long to get back to you, I was about 5 bios
revisions behind on this machine and wanted to update it before I
tried any more tests).

 .andy
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