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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - [snb] GPU Hangs since Kernel-4.2 upgrade (global/aliasing ppgtt issue?)"
href="https://bugs.freedesktop.org/show_bug.cgi?id=91894#c10">Comment # 10</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - [snb] GPU Hangs since Kernel-4.2 upgrade (global/aliasing ppgtt issue?)"
href="https://bugs.freedesktop.org/show_bug.cgi?id=91894">bug 91894</a>
from <span class="vcard"><a class="email" href="mailto:chris@chris-wilson.co.uk" title="Chris Wilson <chris@chris-wilson.co.uk>"> <span class="fn">Chris Wilson</span></a>
</span></b>
<pre>Can you please try:
diff --git a/drivers/gpu/drm/i915/i915_gem_execbuffer.c
b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
index a953d4975b8c..bbf7d35ca906 100644
--- a/drivers/gpu/drm/i915/i915_gem_execbuffer.c
+++ b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
@@ -585,7 +585,7 @@ i915_gem_execbuffer_reserve_vma(struct i915_vma *vma,
uint64_t flags;
int ret;
- flags = PIN_USER;
+ flags = PIN_USER | PIN_GLOBAL;
if (entry->flags & EXEC_OBJECT_NEEDS_GTT)
flags |= PIN_GLOBAL;
on a recent kernel?</pre>
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