[Bug 105888] [CNL] System hang: GEM_BUG_ON(buf[2 * head + 1] != port->context_id) during piglit, masked by tracing enabled

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=105888

--- Comment #9 from Rafael Antognolli <rafael.antognolli at intel.com> ---
So far it's looking good with csb_force_mmio returning true and traces off. I
did try another run without that hack and it had the system hang on the first
run.

But so far after adding the return true; there, it's been stable for 7-8 runs.
I'll leave it running the whole day just to be sure.

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