Re: PCI resources above 4GB

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On 10/04/12 01:51, Bjorn Helgaas wrote:
> On Mon, Apr 9, 2012 at 4:49 AM, Steven Newbury <steve@xxxxxxxxxxxxxxx> wrote:
>> Hi Bjorn,
>>
>> like many users here:
>>
>> https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers-180/+bug/342926
>>
>> I've hit this bug:
>> https://bugzilla.kernel.org/show_bug.cgi?id=10461
>>
>> I was wondering whether an option to enable an algorithm which
>> allocated all 64bit capable devices above 4GB would at least allow
>> systems where the BIOS has not provided a sufficient PCI hole to
>> initialise all PCI devices?  I've been digging into the code, but I'm
>> not yet comfortable to seriously attempt this myself, certainly not
>> without guidance.
>>
>> It's a shame TJ seems to have disappeared, it would have been great to
>> have had a look at his code, I'm sure many of these problems would have
>> been resolved.
>>
>> Any help, workarounds, guidance or patches welcome! :)
> Please attach complete dmesg logs with and without "pci=use_crs" to
> the bugzilla.
>
>
dmesg logs attached to bug, for both pci=use_crs and pci=nocrs.  In both
cases assignment fails.
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