[Bug 80419] XCOM: Enemy Unknown Causes lockup

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=80419

--- Comment #128 from Edwin Smith (Feral Interactive) <esmith at feralinteractive.com> ---
(In reply to Davin McCall from comment #127)
> The comment above from Jose Fonseca (and follow up from Feral's Edwin Smith)
> imply that the problem here is with the game calling
> glDrawRangeElementsBaseVertex with bad start/end values, resulting in the
> indices being out-of-range which is illegal per the GL spec, and implying
> that this is what causes the crash.

It might be useful to see what the Intel and/or r600 series drivers do as
neither of these driver exhibit this crash in similar circumstances. The Intel
Mesa driver might be best as this driver was fully supported from release
without any reports of hangs post release. It's possible a comparison might
help expose why RadeonSi behaves differently and narrow down the cause of the
hang as it could be the root cause is hiding behind a more benign issue.

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