diff -r -N -u mesa-20150729.orig/src/mesa/drivers/dri/i965/brw_misc_state.c mesa-20150729/src/mesa/drivers/dri/i965/brw_misc_state.c
--- mesa-20150729.orig/src/mesa/drivers/dri/i965/brw_misc_state.c       2015-07-29 01:58:03.000000000 +0200
+++ mesa-20150729/src/mesa/drivers/dri/i965/brw_misc_state.c    2015-09-24 10:41:37.922718969 +0200
@@ -212,7 +212,7 @@
 {
    if (!irb)
       return NULL;
-   if (irb->mt->stencil_mt)
+   if (irb->mt && irb->mt->stencil_mt)
       return irb->mt->stencil_mt;
    return irb->mt;
 }