I've made quite a few minor fixes, none of which ostensibly look like it should fix this issue, but double checking with the current rc kernel (3.12-rc2) and latest xf86-video-intel.git is a must.
Afterwards, you can try enabling (independently, and/or in combination)
I've made quite a few minor fixes, none of which ostensibly look like it should fix this issue, but double checking with the current rc kernel (3.12-rc2) and latest xf86-video- intel.git is a must.
Afterwards, you can try enabling (independently, and/or in combination)
#define DBG_NO_UPLOAD_CACHE UPLOAD_ ACTIVE
#define DBG_NO_
#define DBG_NO_MAP_UPLOAD
in src/sna/kgem.c and see if any of those prevent the corruption.