Re: NEW_PCIB? pcib1: failed to allocate initial I/O port window: 0x4000-0x4fff

on 09/06/2011 15:57 John Baldwin said the following:
> On Thursday, June 09, 2011 2:11:16 am Andriy Gapon wrote:
>> on 09/06/2011 01:30 John said the following:
>>> Sorry John, here's the verbose dmesg output with your patch applied.
>>>
>>> This is at the tail of the console:
>>>
>>> pcib1: allocated memory range (0xf6000000-0xf6ffffff) for rid 10 of pci0:1:3:0
>>>         map[14]: type I/O Port, range 32, base 0x4400, size  8, enabled
>>> pcib1: failed to allocate initial I/O port window (0x4000-0x4fff,0x1000)
>>>         map[18]: type Memory, range 32, base 0xf5ff0000, size 12, enabled
>>>
>>>
>>> Output ends with a single 'M', not MCA as earlier.
>>
>>
>> Just a wild guess - what happens if you revert r222537 (you might need to revert
>> r222804 first)?
> 
> I think he's getting a MCA due to writing to a bad address and getting a
> PCI-e target abort equivalent and that the screen output is broken
> because the VGA device is what is probably getting hosed by the pcib driver.
> 
> Given that, I doubt the printf changes are related.

Right.  I was mostly curious if printf has become broken with respect to things
like reporting MCEs.

-- 
Andriy Gapon