etnaviv-gpu 134000.gpu: MMU fault status 0x00000002 on i.XM6 Quad Plus

[Fabio Estevam]

On Mon, Aug 21, 2017 at 9:05 AM, Luís Mendes <luis.p.mendes at gmail.com> wrote:
> Hi,
>
> I'm a software and hardware engineer and I would like to help fix this
> issue. I'm however not acquainted with Open GL nor with Vivante GPUs, thus
> some guidelines would be welcome.
>
> Problem details:
> This issue appears when I login into Ubuntu Mate 17.04. I'm using kernel
> 4.11.12 with Etnaviv drivers, libdrm 2.4.82 and mesa 17.2.0 RC4.
> During the login multiple MMU faults occur and the GUI becomes corrupted...
> the applications menu misses some words or characters, also dialog boxes
> appearing thereafter are also corrupted, missing some words or characters.
> The applications, including OpenGL accelerated ones are fine, rendering
> without detectable errors or artifacts.
>
> The error only occurs with GC3000, not with GC2000...

I am also seeing GPU crash/MMU faults when trying to run an Yocto X11
sato image on a imx6q sabresd with kernel 4.13-rc6 and mesa 17.1.7:
https://pastebin.com/LKnb7VT9