Add brw_meta_fast_clear crash workaround patch (#1259443, fdo#86281)

i965_Remove_early_release_of_DRI2_miptree.patch

@@ -0,0 +1,30 @@
+From e2a696a4cd93c2dbe445243de48ed478fbdb8009 Mon Sep 17 00:00:00 2001
+From: Chris Wilson <chris@chris-wilson.co.uk>
+Date: Fri, 10 Jul 2015 10:41:35 +0100
+Subject: i965: Remove early release of DRI2 miptree
+
+intel_update_winsys_renderbuffer_miptree() will release the existing
+miptree when wrapping a new DRI2 buffer, so we can remove the early
+release and so prevent a NULL mt dereference should importing the new
+DRI2 name fail for any reason. (Reusing the old DRI2 name will result
+in the rendering going astray, to a stale buffer, and not shown on the
+screen, but it allows us to issue a warning and not crash much later in
+innocent code.)
+
+Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
+
+diff --git a/src/mesa/drivers/dri/i965/brw_context.c b/src/mesa/drivers/dri/i965/brw_context.c
+index e8d1396..72f3897 100644
+--- a/src/mesa/drivers/dri/i965/brw_context.c
++++ b/src/mesa/drivers/dri/i965/brw_context.c
+@@ -1388,7 +1388,6 @@ intel_process_dri2_buffer(struct brw_context *brw,
+               buffer->cpp, buffer->pitch);
+    }
+ 
+-   intel_miptree_release(&rb->mt);
+    bo = drm_intel_bo_gem_create_from_name(brw->bufmgr, buffer_name,
+                                           buffer->name);
+    if (!bo) {
+-- 
+cgit v0.10.2
+

mesa.spec

@@ -55,7 +55,7 @@
 Summary: Mesa graphics libraries
 Name: mesa
 Version: 11.0.0
-Release: 0.rc2.1.%{git}%{?dist}
+Release: 0.rc2.2.%{git}%{?dist}
 License: MIT
 Group: System Environment/Libraries
 URL: http://www.mesa3d.org
@@ -70,6 +70,11 @@ Source3: vl_mpeg12_decoder.c
 # Fedora opts to ignore the optional part of clause 2 and treat that code as 2 clause BSD.
 Source4: Mesa-MLAA-License-Clarification-Email.txt
 
+# upstream workaround for recent intel crasher regression
+# https://bugzilla.redhat.com/show_bug.cgi?id=1259443
+# http://bugs.freedesktop.org/show_bug.cgi?id=86281
+Patch1: i965_Remove_early_release_of_DRI2_miptree.patch
+
 Patch15: mesa-9.2-hardware-float.patch
 Patch20: mesa-10.2-evergreen-big-endian.patch
 Patch30: mesa-10.3-bigendian-assert.patch
@@ -344,6 +349,7 @@ Mesa Direct3D9 state tracker development package
 %setup -q -n mesa-%{git}
 grep -q ^/ src/gallium/auxiliary/vl/vl_decoder.c && exit 1
 
+%patch1 -p1 -b .i965_Remove_early_release_of_DRI2_miptree
 %patch15 -p1 -b .hwfloat
 %patch20 -p1 -b .egbe
 %patch30 -p1 -b .beassert
@@ -675,6 +681,9 @@ rm -rf $RPM_BUILD_ROOT
 %endif
 
 %changelog
+* Thu Sep 10 2015 Rex Dieter <rdieter@fedoraproject.org> 11.0.0-0.rc2.2.20150902
+- - Add brw_meta_fast_clear crash workaround patch (#1259443, fdo#86281)
+
 * Wed Sep 02 2015 Igor Gnatenko <ignatenkobrain@fedoraproject.org> - 11.0.0-0.rc2.1.20150902
 - 11.0.0-rc2