[Bug 103025] [GM45] loss of driver acceleration after some time (bisected) (drm call trace)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=103025

--- Comment #79 from Adric Blake <promarbler14 at gmail.com> ---
On an up-to-date GM45 system, the corruption+hang bug still exists; it hasn't
changed. This was tested using kernel 5.0rc6.

The userspace driver has been patched to prevent itself from closing a handle
too soon because of unusual kernel allocation behavior (which caused the
original bug), but either a problem in the driver or in the DRM/GEM system
causes corruption to form in drawn buffers and possibly in other memory with
certain driver operations. I believe this to be caused by the same state which
triggered the original bug.

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