Re: Regression: bug 85491: radeon 0000:01:00.0: Fatal error during GPU init

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On Mon, Dec 22, 2014 at 1:17 AM, Wei Yang <weiyang@xxxxxxxxxxxxxxxxxx> wrote:
> On Fri, Dec 19, 2014 at 04:34:57PM -0800, Yinghai Lu wrote:
>>On Fri, Dec 19, 2014 at 4:23 PM, Bjorn Helgaas <bhelgaas@xxxxxxxxxx> wrote:
>>> On Mon, Dec 08, 2014 at 04:21:34PM -0800, Yinghai Lu wrote:
>>>
>>> I don't see any patches that resolve the regression (bug 85491) yet.  If we
>>> don't figure something out, I'm going to have to revert 5b28541552ef.
>>
>>As you don't like idea to clear the MEM64 bit in resource ...
>>
>>After this merging window, I would like to post 5 patches in
>>
>>https://git.kernel.org/cgit/linux/kernel/git/yinghai/linux-yinghai.git/log/?h=for-pci-allocate-fit-3.18
>>that will make those two systems works with "pci=realloc".
>>
>>We could have another patch that enable pci=realloc when VGA bar get
>>rejected at the first point.
>>
>>The point is there is no performance difference between two solutions according
>>to Marek's test.
>
> One quick question.
>
> The patch in http://www.spinics.net/lists/linux-pci/msg37377.html doesn't use
> "pci=realloc" as it mentioned. And seem worked on Marek's machine.
>
> We wouldn't take it into consideration?

Nope.  https://lkml.org/lkml/2014/12/19/392
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