"fail ttm_validate" basically means "you ran out of vram".
Unfortunately the GL driver doesn't handle this gracefully, causing
commands to get submitted which eventually hang the GPU. You can
disable hw accel in chrome which should ideally "fix" this for you.
Cheers,
-ilia
On Fri, Dec 9, 2016 at 5:30 AM, Ognjen Galić <smclt30p at gmail.com>
wrote:> I have an older Lenovo machine, a T61, with the Nvidia Quadro NVS 140M.
> There is this random bug that would hang the whole machine, and then cause
a
> panic and reboot it (the caps lock light is flashing).
>
> I can't get any kernel messages of this issue except the one in this
YouTube
> video I had luck to
> film and catch the error:
>
> https://www.youtube.com/watch?v=Y1X6s7_laGw
>
> The bug can be triggered always by visiting https://www.google.com/chrome
> when
> the animation plays of the Chrome window rotating.
>
> This has been a persistent bug for me from 3.1X all the way to 4.8.12, and
> I've solved
> it before by just using the proprietary driver, but I now have trouble
> resuming Linux with that.
>
> I've tried logging the kernel messages over SSH and that did not work
> either, it just locks up.
>
> Anyone has any ideas how to catch the issue without going through the whole
> kdump procedure?
>
> Regards,
>
> Gala
>
>
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