[Nouveau] [Bug 61953] arbitrary memory access corrupts kernel memory, eventually crashing the kernel

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=61953

--- Comment #7 from Adrian Knoth <adi at drcomp.erfurt.thur.de> ---
(In reply to comment #6)

> I've noticed that especially hover effects (images that change on
> onMouseOver) in chromium are among the first elements to show screen
> corruption.

I guess we can remove the chromium hover corruption, it's a chromium bug which
is present on other video drivers (radeon, NVIDIA blob), too:


    https://code.google.com/p/chromium/issues/detail?id=227447


However, there is still some correlation with the video driver: if I disable
the flashplugin in chromium or stop using chromium altogether, the kernel
corruption occurs *much* later. So the original hypothesis still stands that
some apps (ardour3, maybe also libreoffice) can write to arbitrary physical
memory on my nouveau-based system.

A short test with the NVIDIA blob did not exhibit this issue, but I'd need to
run for several days to be sure.

Maybe a power management issue? (memory timing?)

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