Comment 15 for bug 459961

> Does it work without that "fix" for the 7.6 branch?

No, with a clean clone of 7.7 branch it asserts in a similar way to bug #24131 (see below). Apparently the "Leaking dma buffer object!" and the "Assertion `bo_legacy->is_pending <= bo->cref' failed." issues are related, and the commit:
http://cgit.freedesktop.org/mesa/mesa/commit/?h=mesa_7_6_branch&id=13b5a624b1899c457279907d58046dfb3c95addc
only hide the real problem, and make new issues appear:
https://bugs.launchpad.net/bugs/459961

*********************************WARN_ONCE*********************************
File radeon_dma.c function radeonReleaseDmaRegions line 348
Leaking dma buffer object!
***************************************************************************
doom.x86: radeon_bo_legacy.c:207: legacy_is_pending: Assertion `bo_legacy->is_pending <= bo->cref' failed.
signal caught: Aborted
si_code -6
Trying to exit gracefully..
--------- Game Map Shutdown ----------
--------------------------------------
Shutting down sound hardware
----------- Alsa Shutdown ------------
close pcm
dlclose
--------------------------------------
idRenderSystem::Shutdown()
doom.x86: radeon_bo_legacy.c:207: legacy_is_pending: Assertion `bo_legacy->is_pending <= bo->cref' failed.
double fault Aborted, bailing out
shutdown terminal support