SDMA out-of-bounds write access of tiled surface

Nicolai Hähnle nhaehnle at
Mon Jul 11 21:58:05 UTC 2016

The culprit SDMA buffer was actually submitted by the X server, I believe.


On 11.07.2016 23:52, Mads wrote:
> Yes, also with 5.7 the corruption appears if I start /usr/bin/konsole or
> /usr/bin/dolphin (and I guess it will be apparent with more
> applications, if you want I could test some more). Although, I have no
> trouble using chromium or steam, playing all sorts of games. As you can
> see if you look through the thread, it might be reason to believe that
> plasmashell itself might be the culprit sending the data that corrupts
> the screen.
> - Mads
> On 2016-07-11 23:42, Marek Olšák wrote:
>> Can you see any corruption or is there just the message in dmesg? (It
>> might just be a page directory fetch and not a memory access)
>> Marek

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