[Bug 69683] [r600g][GLAMOR] Crash when viewing a movie full screen with mplayer

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=69683

Raul Fernandes <rgfernandes at gmail.com> changed:

           What    |Removed                     |Added
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                 CC|                            |rgfernandes at gmail.com

--- Comment #8 from Raul Fernandes <rgfernandes at gmail.com> ---
I have a problem that seems similar.
When I will see a movie with mplayer, the Xorg crashs randomly while opening
the movie.
It doesn't matter if is fullscreen or not.
Looking at backtrace, your bug passes through:

[ 71790.290] (EE) 5: /lib64/libglamor.so.0 (glamor_add_traps_nf+0x1e3)
[0x7fb5799b3f83]

and mine:

[   417.612] (EE) 6: /usr/lib/libglamor.so.0 (0x7f1542250000+0x1c073)
[0x7f154226c073]

The rest seems to be similar (fbGetImage -> fbBltStip -> fbBlt).
Looking in the full backtrace using gdb, the function:

 fbGetDrawable(pDrawable, src, srcStride, srcBpp, srcXoff, srcYoff); (line 242
- fbimage.c)

returns the src = 0x0
The invalid src causes the crash when the Xorg tries to read from src.
The patch is a workaround because it only stop processing if src is invalid,
but I think that src should be valid.
The error is in another place.

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