Re: [PULL?] i915_bpo rebase to ~4.6-rc1

Timo Aaltonen tjaalton at ubuntu.com
Mon Mar 28 14:42:22 UTC 2016


28.03.2016, 16:09, Tim Gardner kirjoitti:
> On 03/24/2016 06:33 AM, Timo Aaltonen wrote:
>>
>> BugLink: http://bugs.launchpad.net/bugs/1560395
>>
>> 	Hi
>>
>>   This branch would update i915_bpo from an upstream prerelease tag to what
>> will be in 4.6-rc1. The caveat is that while the module loads and works fine
>> on Skylake, it fails on Kabylake with
>>
>> i915_bpo: Unknown symbol pm_runtime_get_if_in_use (err 0)
>>
>> and I've no idea why, since the commit to add that symbol is included and
>> the kernel should have that.. but I've sent this anyway in case someone
>> has better ideas on why it fails here...
>>
>> --
> 
> That seems pretty weird. Are you sure you have linux-image-extra
> installed on the Kabylake system ? I installed on a non-i915 system and
> was able to modprobe the i915_bpo module without encountering any
> missing symbols.
> 
> I am going to hold off on this pull request until you are a little more
> sure of your bits.

Yeah, I figured it out.. the KBL system had linux-signed-image of the
same abi version installed and that conflicted with the local kernel
image build, so I purged linux-signed-* and it works fine now.

so I think it's fine to merge now :)


-- 
t




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