drm-next i915 regression? ( was: Re: PCI resources above 4GB)

[Steven Newbury]

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On 13/04/12 17:17, Yinghai Lu wrote:
>>> Looks like either a btrfs regression or bad interaction with 
>>> for-pci-res-alloc.  Oops attached.
>> Just hit the same oops on the rc1+for-pci-res-alloc kernel I
>> tried earlier so it's not definitely something new in the btrfs
>> code.  Seems like it's a 64/32bit pointer issue??
> 
> for-pci-res-alloc include
> 
> for-pci-hostbridge-cleanup for-pci-busn-alloc 
> for-pci-root-bus-hotplug for-pci-for-each-res-addon at plus 7
> patches.
> 
> maybe there is some problem with for-pci-for-each-res-addon.
> 
> just rebase for-pci-res-alloc to for-pci-root-bus-hotplug. Please 
> check if the problem still there.
> 
Still Oopses.  I'm going to try linus/master.  Perhaps it's a
filesystem corruption triggering it?  I do find it a little suspicious
that it occurs in "btrfs:find_workspace" though, code which deals with
memory allocations...
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