[Bug 204145] amdgpu video playback causes host to hard reset (checkstop) on POWER9 with RX 580

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=204145

--- Comment #15 from Timothy Pearson (tpearson at raptorengineering.com) ---
Bisect shows that the failing commit is:

https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-5.1.y&id=6666cc17d7802b7dcbb073e7be1eee2cf6fa64d9

This is on a WX7100 GPU, the lockup is 100% repeatable after that patch goes
in.  Unfortunately it does not cleanly reverse on the 5.1 kernel so I can't
verify this is the only problem with 5.1, but it's a start.

Any IBMers have ideas why this patch went in and why it would be causing "Cache
line inhibited hit cacheable space" faults?

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