[Bug 106642] X server crashes in i965 on desktop startup when DRI3 v1.2 / modifier support is enabled

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=106642

--- Comment #26 from Eero Tamminen <eero.t.tamminen at intel.com> ---
(In reply to Jason Ekstrand from comment #23)
> I think I finally managed to reproduce the issue.  This series should fix it:
> 
> https://patchwork.freedesktop.org/series/44365/

Tested with and without Lionel's patch, on BXT, SKL & BDW.  Desktop boots up
fine, and few tests I run on BXT work also fine.  I.e. I can verify it fixes
the crash

(I don't build Mesa with debug, so I assume asserts aren't built in, in which
case it's obvious from the patches that no crashes will be triggered as there's
now guard for array values in addition to asserts.)

Tested-by: Eero Tamminen <eero.t.tamminen at intel.com>


> Lionel is writing a piglit test that emulates the X server's usage of the
> two queries to ensure that this won't happen again.

Excellent! :-)


PS. Background objects in GfxBench v5-GOLD2 AztecRuins seems to flicker a bit,
but I think that's some unrelated issue.

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