[Mesa-dev] [Bug 57372] x11-libs/libxcb media-libs/mesa segfault in __glXGetString

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=57372

--- Comment #11 from Richard Freeman <rich0 at gentoo.org> ---
(In reply to comment #10)
> (In reply to comment #9)
> > Ok, it turns out that I can eliminate this issue in xserver 1.13.0 if I
> > revert two commits:
> > ed6daa15a7dcf8dba930f67401f4c1c8ca2e6fac (mentioned above)
> > bcbf95b1bafa6ffe724768b9309295e2fdb4b860
> 
> Not sure if you are saying you both or either of these need to be reverted.

Both of those need to be reverted to prevent the segfault in 1.13.0.  You get a
segfault if either commit is still present (when I reverted only the first one
it still segfaulted in 1.13.0, but not in git versions prior to the second
commit, and if I build 1.13.0 without both of those commits then there is no
error).

> I think this may be a bit of a red herring.  I would guess with this commit
> reverted, the X server ends up swrast, which perhaps masks the problem you
> are seeing.

Entirely possible, which is probably why the virtualbox drivers work as well. 
However, unless 1.12.4 was also stuck in swrast it seems like there is
something else going on.

Note that I'm not suggesting that YOU should actually revert those commits or
anything - just that I don't get the segfault without them.  

I guess I could try leaving xserver alone and start messing with the ati
drivers instead (stock 1.13.0 with earlier builds of the drivers).

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