[Bug 93790] [HSW] Use after free with compute programs

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Thu Feb 18 03:40:39 UTC 2016


https://bugs.freedesktop.org/show_bug.cgi?id=93790

Ilia Mirkin <imirkin at alum.mit.edu> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |FIXED
             Status|ASSIGNED                    |RESOLVED

--- Comment #12 from Ilia Mirkin <imirkin at alum.mit.edu> ---
(In reply to Alejandro Piñeiro (freenode IRC: apinheiro) from comment #11)
> (In reply to Kenneth Graunke from comment #10)
> > I think this should fix the problem.  I tested on Broadwell with:
> > 
> > MESA_EXTENSION_OVERRIDE=GL_ARB_compute_shader valgrind
> > bin/arb_shader_image_load_store-semantics -fbo -auto --quick
> > 
> > and saw valgrind errors before these patches, and none after.  I haven't
> > tried running dEQP through valgrind, though.
> 
> ... I tried the scenarios pointed at comment #0 and at comment #1 on
> haswell. Although there are still some valgrind warnings, the one pointed by
> the bug (use after free, example "Address 0xd3e8ca4 is 884 bytes inside a
> block of size 1,040 free'd") are gone. 
> 
> So probably it is safe to close the bug now. Will let Ilia give the final
> word.

Hm, I don't think I saw any valgrind warnings... this is fixed as far as I'm
concerned, thanks guys!

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