[Bug 104945] [CI] igt at gem_* - incomplete - GEM_BUG_ON(buf[2 * head + 1] != port->context_id) - kernel BUG at drivers/gpu/drm/i915/intel_lrc.c:869!

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=104945

--- Comment #6 from Marta Löfstedt <marta.lofstedt at intel.com> ---
(In reply to Chris Wilson from comment #1)
> It's the same problem as the bogus tail pointer in live_hangcheck, the
> original bug in 104262

Chris would you prefer to re-open bug 104262?

Also looking at history of the test
https://intel-gfx-ci.01.org/tree/drm-tip/igt@gem_eio@in-flight-contexts.html
https://intel-gfx-ci.01.org/tree/drm-tip/igt@gem_eio@in-flight.html

 it looks like something may have happened around ~CI_DRM_3815

Also, the last occurrences on KBL-shards indicates a hang check rather than
this thing.

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