[Bug 91349] [BSW-BYT-M-SKL] igt/gem_eio/throttle fails

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=91349

--- Comment #19 from Chris Wilson <chris at chris-wilson.co.uk> ---
(In reply to Paulo Zanoni from comment #16)
> Created attachment 117776 [details] [review]
> proof-of-concept patch

It's only a very small step towards the fix which has to target all the WARNs
throughout the code. The clearing of the wedged flag has to be inside the reset
function, which then gets restored upon failure. Last year, I proposed

http://cgit.freedesktop.org/~ickle/linux-2.6/commit/?h=nightly&id=f29c56ceef2310b37034d94bce508ee37655699a

and this test case exists to ensure that we do generate the EIO where we expect
them in the ABI. Sadly it doesn't exercise all the current WARNs in the kernel
fixed by the above.

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