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SubjectRe: [BUG][REGRESSION] mangled display since -rc1
Am 2016-11-06 um 12:43 schrieb Martin Kepplinger:
> Am 2016-11-06 um 12:21 schrieb Thorsten Leemhuis:
>> On 01.11.2016 12:47, Jani Nikula wrote:
>>> On Tue, 01 Nov 2016, Martin Kepplinger <> wrote:
>>>> I'll come up with a nouveau system example and it was quite easy to bisect. To quote the merge commit msg:
>>>> This also required some changes outside of the IOMMU code, but these are acked by the respective maintainers.
>>>> Any help on bisecting into it would be awesome.
>>> So the information here is pretty scarce. Please file a bug at [1],
>>> describe the problem, perhaps add drm.debug=14 module parameter and
>>> attach dmesg from boot to reproducing the problem.
>> Martin, did you do that and can point me to the bug? And if not: Any
>> news on the issue?
>> FWIW: I added this report to the list of regressions for Linux 4.9. I'll
>> watch this thread for further updates on this issue to document progress
>> in my weekly reports. Please let me know via
>> in case the discussion moves to a different place (bugzilla or another
>> mail thread for example).
>> tia! Ciao, Thorsten
> I did not file a bug in bugzilla yet. I haven't given up that we can fix
> this here before the release. I've ignored it the last few days though.
> Again: This is the first bad commit:
> [56e520c7a0a490b63b042b047ec9659fc08762a4] Merge tag
> 'iommu-updates-v4.9' of
> git://
> If you know how to bisect into this, please share your thoughts. Linus'
> merge here is bigger than iommu-update-v4.9 i think and that's what I
> have to look at really. I'm not sure how though.
> One part of the merge is indeed iiommu-updates-v4.9:
> That's the tag:
> and the tagged object:
> I'll have to think about how to check the iommu-updates-v4.9 part of the
> merge again... to eliminate something.
-rc4 is still bad. all still relevant :(

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